Trenchless Australasia September 2020

ISSUE 64 | SEPTEMBER 2020 THE OFFICIAL PUBLICATION OF THE AUSTRALASIAN SOCIETY FOR TRENCHLESS TECHNOLOGY

LOCKED IN Virus can’t stop Interflow | The edge over tough microtunnelling projects Where there’s a Wilmot there’s a way | CEA becomes official Ditch Witch dealer A leading BRANDT for HDD solutions | Prioritising health in a post-COVID climate

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Editor’s letter EDITORIAL

David Convery dconvery@gs-press.com.au Sophie Venz svenz@gs-press.com.au BUSINESS DEVELOPMENT

Nick Lovering nlovering@gs-press.com.au Lyndsie Clark lclark@gs-press.com.au Michael Usic music@gs-press.com.au DESIGN

Jonathan Concannon jconcannon@gs-press.com.au PUBLISHER

Annie Ferguson aferguson@gs-press.com.au EDITORIAL BOARD Mike Stokes Reliability Delivery Manager, South East Water Robert Loncar Lead Civil Engineer, Sydney Water Tim Lancaster Partner, Alta Consulting

PUBLISHER

Great Southern Press ACN 005 716 825 (ABN 28 096 872 004) Level 15, 461 Bourke Street Melbourne VIC 3000 +61 03 9248 5100 query@trenchless-australasia.com www.trenchless-australasia.com ISSN 1832-0562

Trenchless Australasia is audited by the Audited Media Association of Australia.

Average net distribution is 3,483 for the period ending September 2019.

6 TRENCHLESS AUSTRALASIA

David Convery

I

t’s my first edition sitting in the Trenchless Australasia editor’s chair and although I wish we weren’t still talking about COVID-19, it is certainly starting to feel like there is more of this virus in front of us than behind. As many of you would be aware, this magazine is produced in Melbourne, which in recent months has acquired the unwelcome title of Australia’s coronavirus capital with a rapidly expanding number of cases forcing the government to employ the country’s strictest lockdowns.

I’m sure most Victorians never expected to live in a time where we couldn’t visit our family and friends, go to a restaurant or be out on the street past 8pm each night, but that’s the reality of what has become necessary to curb the spread and keep each other safe. My thoughts and best wishes go out to those who have lost loved ones, their jobs, or both, during this time, and I desperately hope the country – and indeed the world – can work together to overcome this and provide support for each other.

On a much brighter note, it’s great to be welcoming you all to such a full and vibrant edition of Trenchless Australasia. With the immense challenges many of us are facing to keep things afloat, it is reassuring to see so many great project, product and company news stories in this magazine.

If anything, the expanse of material we had at our disposal to produce this edition against a backdrop of the world’s economic turmoil was proof of just how integral this industry is to the inner workings of our everyday lives. It’s never been more important to ensure the efficient supply of resources like water or energy, to make sure our sewers and drains run properly and to guarantee infrastructure as a whole can be relied upon in our cities.

In this edition you can find a lengthy feature focused on some of the fantastic trenchless work going on in New Zealand at present, articles on some of the most prominent players in the vacuum and hydro excavation sector and a selection of informative tunnelling and microtunnelling pieces.

This magazine also contains a feature on the other battle the planet is fighting – the battle to

lower carbon emissions. Assistant Editor Sophie Venz discusses how this issue ties into the fight against COVID-19 on page 26, while we get an overview and update on the ASTT’s highly anticipated Carbon Calculator on page 28, which is currently being developed by the society’s Special Interest Group.

There is plenty more news to be found throughout this edition, covering topics like relining, drilling fluids, horizontal directional drilling and host of other things sure to pique the interest of our audience.

The countdown has also begun to No-Dig Down Under 2021, which is already shaping up to be another top-quality incarnation of this pivotal trenchless event. Next year’s event will be held in Sydney in October with sponsorship opportunities and exhibition space now available, so it’s best to move quickly and avoid missing out. More information on this and other events can be found on page 90.

I want to take this opportunity to thank the whole team at Trenchless Australasia who have done such a great job putting this all together under less than ideal circumstances.

The challenge of working remotely on such a collaborative process like magazine production, and doing so now for close to six months, has certainly been a challenge, but it is one that everyone has been able to meet head on.

I would also like to acknowledge Chloe Jenkins, the previous editor of this magazine, whose high editorial standards and attention to detail were a real asset to this publication. I am extremely appreciative of the support she has given me throughout my time with this magazine and I hope I can continue to uphold the lofty standards she has set.

If 2020 has taught us anything, it’s that rarely can we accurately predict what next week will bring, let alone the next three months. With that in mind, I hope we can all stay safe and that it won’t be too long until COVID-19 isn’t the most prominent aspect of our lives.

David Convery Managing Editor dconvery@gs-press.com.au

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Contents

NEWS

ISSUE 64 SEPTEMBER 2020

Trenchless helps care for NZ water sector Virus can’t stop Interflow Ticking every box Liner won’t croak after quake

News in brief

16

UNDER NEW ZEALAND

18 20 22 24

LOW CARBON EMISSIONS

Prioritising health in a post-COVID climate ASTT makes calculated steps towards carbon reduction

26 28

VACUUM AND HYDRO EXCAVATION

Top quality trucks vac in town Hitting the hydro excavation bullseye Local servicing at its KOR DCS manufactures more hydro vac success KAISER jets to the top in Australia A Mainstream solution for unique challenges

30 33 34 36 38 40

RELINING

Winching to a win for top supply services Where there’s a Wilmot there’s a way RBM brings leading CIPP technology down under Aussie Trenchless moves FNQ project forward A wide range of relining successes Keeping trenchless in the family No catch-22 with MCS on board

42 44 46 48 50 52 55

TUNNELLING AND MICROTUNNELLING

GM the go-to in WA The edge over tough microtunnelling projects Bothar’s critical seaway project a success Driving through dirt and rocks Keeping experts in-house

58 60 62 64 66

INSPECTION AND CONDITION ASSESSMENT

Experience total asset management with UtilityTrack 67 SECA keeps the job moving 68 Veolia partners with VAPAR for CCTV defect recognition solution 70 DRILLING FLUIDS AND EQUIPMENT COVER STORY

Specialised system locks in success – page 84 Smart Lock Group was called upon to design a unique and specialised Smart Lock for Victoria’s West Gate Tunnel project.

Cover image: Due to the large size, the custom Smart Lock needed to be placed manually into position in a 7 m deep shaft. Image courtesy of Smart Lock Group.

This magazine is the official journal of the Australasian Society for Trenchless Technology (ASTT) and is distributed to members and other interested parties throughout Australia and the Asia-Pacific. It is also available on subscription.

The publishers welcome editorial contributions from interested parties. However, neither the publishers nor the ASTT accept responsibility for the content of these contributions and the views contained therein are not necessarily the views of the publishers or the ASTT. Neither the publishers nor the ASTT accept responsibility for any claims made by advertisers. All communications should be directed to the publishers.

Unless explicitly stated otherwise in writing, by providing editorial material to Great Southern Press (GSP), including text and images, you are providing permission for that material to be subsequently used by GSP, whole or in part, edited or unchanged, alone or in combination with other material in any publication or format in print or online or howsoever distributed, whether produced by GSP and its agents and associates or another party to whom GSP has provided permission.

8 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

VSA strides ahead with Vermeer Longstanding trenchless relationship continues An Australian HDD success story A leading BRANDT for HDD solutions

73 74 76 78

PROJECTS

Forward HDD thinking for positive outcomes Specialised system locks in success Sliplining by the creek with kwik-ZIP

81 84 86

COMPANY NEWS

Creative collaboration beats challenging conditions CEA becomes official Ditch Witch dealer

88 89

REGULARS

Editor’s letter 6 From the President 10 From the ASTT Secretary 12 Councillor’s reports 14 Events 90 ASTT Corporate Members 91 Advertisers’ index 92

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From the President Chris Frangos

W

THE AUSTRALASIAN SOCIETY FOR TRENCHLESS TECHNOLOGY

ABN 43 893 870 966 18 Frinton Place Greenwood, WA 6024 www.astt.com.au jeffpace@astt.com.au President: Chris Frangos Secretary: Jeff Pace Vice President: Ben Crosby COUNCILLORS

Western Australia: Trevor Gosatti Queensland: Alison King, Ben Crosby New South Wales: Matthew Boyle Victoria: Chris Frangos South Australia: Adam Russo New Zealand: Blair Telfer Northern Territory: Vacant Tasmania: Vacant INTERIM COUNCIL REPRESENTATIVES

Sudipta Basu Justin Shepherd

10 TRENCHLESS AUSTRALASIA

elcome to the third edition of Trenchless Australasia for 2020!

Where has the year gone?

This year will go down in history as the year the pandemic changed the world.

This immense human tragedy has touched all of us in one way or another and, just as we saw some positive signs, it has hit again, particularly in Victoria.

Our thoughts go out to all the families that have been directly impacted by the pandemic, both in health and economically through loss of employment. During times of adversity we are reminded of the hardship and sacrifice our grandparents faced through depression and wars, and we are heartened daily by stories of kindness and compassion.

As we have seen many times before, the human spirit is resilient and from this adversity opportunities are developing that will change the way we live and interact. It has been difficult to present a full range of services this year, as our ASTT delivery model was very much based on face-to-face interaction.

As previously reported, all the planned events this year have been deferred until greater clarity is available around mass meetings of people and travel restrictions both between states and overseas.

The ASTT recently launched a series of webinars designed to provide free and quick presentations to our members. This approach led to some technical difficulties at the start of our inaugural webinar; however, after a short

delay we were able to complete the webinar and have received some positive feedback.

A key project this year is the development of the ASTT digital strategy that will refresh the website and develop a platform for engaging with our members and the industry. As this work progresses you will all notice improvements in the quality of the website and communication in general.

Planning for No-Dig Down Under 2021, the ASTT’s biennial conference and exhibition, is progressing well. Our flagship event will be held in Sydney on 5–8 October 2021 and the theme of the event is ‘Building Sustainable Futures’.

This event (organised by Great Southern Press, the publisher of Trenchless Australasia), has grown to be one of the largest dedicated trenchless technology events in the world, recognised globally as a leading forum for the discussion of the latest international developments. You can find more information by visiting www.nodigdownunder.com I urge you all to start thinking about some of your projects that will no doubt make great presentations, and I look forward to working closely with the conference organising committee to develop another full and informative conference program.

Stay tuned for more updates within the magazine and online.

Chris Frangos ASTT President chris@astt.com.au

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From the ASTT Secretary Jeff Pace Microtunnelling Design Guidelines for Sewers (MDG-S) In October 2015, the ASTT Council approved its inaugural Special Interest Group (SIG) tasked with the development of Microtunnelling Design Guidelines for Sewers.

Leading the charge with this task was Jim Shooter from Pezzimenti Laserbore who recruited others to assist with the task, namely John Bower from Independent Civil Solutions, Kenny Bowie from WSP (formerly with Aurecon), Michael Cahalane from Warren Smith & Partners, Chester Chen from AECOM, Robert Loncar and Shaun Nadin from Sydney Water, Dennis Shaw from Iplex, Steve Rimmer from Rose Atkins Rimmer and Justin Kabat from GHD. After several years of meetings, I am thrilled to be able to inform all readers that these guidelines are now complete and are available for all to use on our website in the ASTT Guidelines portal.

The Microtunnelling Design Guideline for Sewers (MDG-S) is intended to be used as a reference document for pipeline/civil designers for feasibility studies, preliminary and detailed designs of smaller non-man entry gravity sewer installations using microtunnelling.

In the water industry, many sewer projects undertaken by water authorities are less than 1,200 mm in diameter and over relatively short lengths of less than 200 m. The MDG-S is targeted to assist designers in this segment of the market.

As one published paper inevitably identifies other areas that require investigation and research, it is hoped these guidelines will serve as a base document for future documents and specifically:

1.

To be a platform for other design guidelines to address other closely related applications for microtunnelling, namely – pressure mains (water and sewer), stormwater, power conduits and gas mains.

While many of the fundamental

12 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

2.

design and construction principles of microtunnelling carry over from gravity sewer applications into applications in other industries, significant differences always exist. It is hoped these differences will be the subjects of future guidelines.

To encourage a discussion and guidelines on the use of grout in microtunnelling applications.

Grouting may well be the topic for papers and panel discussion at the next No-Dig Down Under in 2021!

The ASTT hopes you find this new guideline useful.

ASTT Webinars On 23 July, we undertook our first webinar.

The presenter was Will Zillmann from Interflow with a presentation entitled ‘Water main renewal – they’re under pressure and the clock is ticking’. The webinar was well attended, and we are now planning our next one, on a monthly basis.

Strategic Plan update Work has been progressing despite the COVID-19 issues. At the time of preparing this report, I am able to inform readers that the following are being worked on to enhance membership value:

•

•

•

We have undertaken a comprehensive review of all the benefits other Affiliated Societies and some other relevant organisations offer their members with a view of adding additional benefits for our members.

Through our Strategic Planning Consultant, we have initiated action to implement a Digital Marketing Consultant for the ASTT. We have initiated a survey of engineering companies, design houses and asset owners as to their need for accreditation for the development of a tertiary level

•

training course for trenchless technology professionals.

We have had engagement with Standards Australia to consider widening the scope of AS/NZS 2566 designing of pipe liners.

Trenchless Asia 2020 The ISTT has recently advised all societies that this event has been postponed to 29 June – 1 July 2021. For more details, please contact Paul Harwood at Westrade: pharwood@westrade.co.uk Trenchless International magazine The ISTT has also advised all affiliated societies that members will no longer be receiving the quarterly Trenchless International magazine and that we shall be notified as soon as the ISTT come up with an alternative.

Relining SIG Back in 2016, a SIG was formed to look at linings; however, for several reasons this group never gained much traction. The ASTT is now proposing to resurrect this group, with plans for it to be chaired by Blair Telfer, NZ Councillor.

Some of the initial outcomes anticipated from the group would be the development of standard specifications that all asset owners in Australia and NZ could use with confidence.

Another initiative is the development of training courses and material for pipe lining, similar to the NASTT courses but with an Australasian perspective.

This SIG will always be open to other suggestions and ideas from the industry as to what the industry needs and wants. If you would like to register your interest to be part of the group, then please contact me and I will pass your details onto the chair for the SIG. Jeff Pace ASTT Secretary jeffpace@astt.com.au

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ASTT COUNCILLOR REPORTS

Western Australia Trevor Gosatti A milestone was reached in Western Australia earlier this year, with the provision of further detail of the proposed 21 km rail line from Morley to Ellenbrook requiring trenchless technologies. Following WA Cabinet endorsement of the Project Definition Plan, concept images and station details, such as access, parking and facilities, are now available for the future Ellenbrook, Whiteman Park, Malaga, Noranda and Morley stations. The new rail line will connect Perth’s fastest growing population area – the north eastern suburbs – to the CBD while also improving access to other destinations on the rail network, including Perth Airport. As the design is completed, further requirements of use of trenchless technologies will become apparent. Once complete, the line will allow passengers to seamlessly travel from Morley to the CBD in 15 minutes and from Ellenbrook to the city in 30 minutes.

Queensland Ben Crosby The last quarter in the trenchless industry will remain busy both on a national and international level with clients continuing to rehabilitate and install new utility infrastructure, despite the new COVID-19 world. Due to social distancing requirements and restrictions, our Queensland Trenchless Networking and Presentation Seminars have been replaced with monthly webinars. Please look out for the invites and register to attend. If you are interested in joining the ASTT as a corporate or individual member, please contact us to discuss the opportunity and gain more information. The benefits are impressive and the access to the network makes it a very worthwhile proposition.

South Australia Adam Russo Despite the ongoing challenges brought on by the COVID-19 pandemic, South Australia’s trenchless sector continues to grow with construction taking place and future projects being announced. Notably, major utility SA Water has signed on five major companies to be its construction partners in the delivery of a AU$1.6 billion capital program for projects that will improve water and sewerage services across the state. Each of the major framework agreements were valued up to AU$500 million and were signed between SA Water and Fulton Hogan Utilities, a joint venture (JV) of John Holland and Guidera O’Connor and a JV comprising McConnell Dowell and Diona.

New South Wales Matthew Boyle As a new councillor, I would like to thank the members and other councillors for being so welcoming. We have all been challenged by the times, with many of our members facing changes in both business and personal life we never expected. In talking to members, it has been inspiring to hear the way in which many have risen to the challenges of the times. Essential service members have worked hard to protect their workers and continue to serve the community and the supply chain members have been there every step supporting them. We should all be proud of the response from our industry. I will be looking to put together some catch-up sessions shortly. There are also still many Special Interest Groups running, and I am free for a catch up anytime on any ideas any members have to help increase the ASTT’s value to its members. Thanks again for the welcome.

New Zealand Blair Telfer As we return to some sense of normality here in New Zealand, we can see some of the positive legacies from the COVID-19 pandemic. One such change is how quickly we have adapted to virtual events, whether they be training, conferences or meetings. In line with these changes comes the ASTT’s inaugural webinar series to replace – in the immediate interim – the previous forums. These virtual events allow the sharing of knowledge on a ‘one to many’ scale that face-to-face events struggle to compete with. It also opens the Trans–Tasman knowledge share, where we can share our learnings with Australia and vice versa. I encourage you all to register for these events and to also think about presenting at them. In saying the above, I am also pleased to see the annual WaterNZ Conference is going ahead ‘in person’ this year, including the ASTT stream again. I hope to see a number of you at this event. Until then, stay well and stay safe.

14 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

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NEWS IN BRIEF

New robotic crawler presents safer option

DBYD teams with Deloitte and Esri

In Western Australia, Water Corporation operates and maintains multiple unlined rock tunnels to convey water, with personnel crews required to enter these tunnels for comprehensive asset condition assessments.

An assessment involves various tests and samples or remedial work when needed, resulting in a high safety risk for entry crews.

To mitigate this safety risk, Water Corporation Senior Engineer ROV Design Daniel Rechichi has developed a robotic crawler that can conduct a complete visual assessment prior to any crews entering the tunnel, including the ability to identify potentials for rock falls and other safety related issues.

Once the robotic crawler conducts its initial assessment and deems the tunnel safe for entry, it then accompanies the crew into the tunnel and stays with them for the duration of the works, providing numerous aids such as lights, cameras, power supply, communications and more.

Suitable for operating in tunnels with a diameter as small as 1.6 m, the robotic crawler has four-wheel independent drive and the ability to traverse through thick mud, small rocks and obstacles.

The system will increase the reliability of water supply, decrease operational costs and eliminate the safety risk for workers.

Dial Before You Dig (DBYD) will collaborate with Esri Australia on its new next generation referral service, with Deloitte Consulting to assist in the development of the operating digital platform.

Self-managed kiosks for reporting and information uploads will be delivered in the first phase of the project, followed by enhanced data integration capabilities, map-based search functions, an improved user interface and various other features.

Esri will leverage its geospatial information service technology for the new service, while Deloitte will develop the digital platform using Microsoft Azure software.

DBYD CEO Stuart Burdack says the company is pleased to be collaborating with these businesses to enhance the protection of AU$388 billion worth of underground utility assets around Australia.

“For more than two decades, DBYD has remained one of Australia’s most relevant and respected services prioritising worker safety and the protection of critical underground infrastructure, above all else,” he says.

“Our vision of ‘zero harm, zero damage’ sits at the heart of our decision to pave a new, innovative path forward for the DBYD service.”

The new referral service will be built and tested over the next year before coming online in the second half of 2021.

Cross River Rail recruits trainees Queensland’s largest infrastructure project presents a great opportunity for local workers and contractors, creating more than 7,700 jobs during its construction and 450 opportunities for trainees and apprentices.

With 150 trainees and apprentices already onboard, Cross River Rail expects this number to grow thanks to a new training qualification.

In collaboration with TAFE Queensland, Cross River Rail is introducing a new Certificate III Rail Infrastructure traineeship qualification – a first for the state.

“We are committed to creating jobs now and developing career paths for younger people over their lifetime,” says Cross River Rail.

“This new Certificate III qualification in rail infrastructure will be delivered by TAFE Queensland to benefit the wider industry, not just those working on Cross River Rail.

“It ensures that the project leaves a training legacy that will benefit Queensland’s skilled labour force for years to come.”

So far, more than 2,300 jobs have been generated through the project, allowing for a strong foot forward in the state’s economic recovery from COVID-19.

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Trenchless helps care for NZ water sector Watercare has been using trenchless technology with an increasing rate on its New Zealand projects.

Trenchless Australasia sat down with Watercare’s John McCann to ask what sparked the company’s interest in non-conventional construction methods, the Watercare’s core values when it comes to infrastructure decisions and the changes in NZ’s water sector as a whole.

M

r McCann is a Projects Manager in Watercare’s construction delivery team where he heads up a team of project managers focused on the successful delivery of water, wastewater and treatment projects across the Auckland region.

The delivery of these projects is often achieved with trenchless technologies, which Watercare has been implementing in its construction works for more than 20 years, often using horizontal directional drilling (HDD) and microtunnelling due to their versatile and cost-effective nature compared to traditional trenching methods.

“The unique Direct Pipe® tunnel boring technology has created more possibilities for installing pipelines at various depths and in different geology,” says Mr McCann.

“We used this methodology for the first time in NZ and Australasia 18 months ago. We are currently close to completing our second wastewater ocean outfall pipe installation using this technology.”

Growing benefits Mr McCann says Watercare first began using trenchless technologies due to the community benefits they could provide.

“It means we can build below Auckland’s busiest commercial areas, railways, motorways and major regional arterial routes carrying thousands of commuters every day with minimum disruption,” he says.

Watercare has recognised there are even more benefits that come from trenchless

18 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

technology, such as minimal environmental impact and carbon emission reductions.

“Pipe jacking and microtunnelling are some of the safest and most environmentally friendly underground construction processes,” says Mr McCann.

“Last year we announced our 40:20:20 vision for our infrastructure delivery program. The aim is to reduce carbon in construction by 40 per cent, injuries in construction by 20 per cent year on year, and infrastructure program costs by 20 per cent by 2024. These methods will help us to meet these goals.”

Watercare’s organisational vision is to be ‘trusted by its communities for exceptional performance every day’.

“When it comes to building or upgrading infrastructure, we have to do this in a reliable and cost-effective way so that we can accommodate growth while maintaining service standards and keeping our charges to a minimum,” he says.

“Many factors are considered in the decisionmaking process including the buildability, potential disruption, public safety and cost.”

A global task Watercare often uses local contractors and technology from NZ and Australia and also uses innovative technologies from around the world.

“The Central Interceptor wastewater tunnel project is a good example where international experience and technology is being leveraged to help service new growth while also cleaning up the environment,” says Mr McCann.

The Central Interceptor is being constructed

The Direct Pipe® trenchless technique was used on the Army Bay Ocean outfall project by Watercare.

You can find a full project story on Army Bay on page 44 of Trenchless Australasia December 2018, available at www.trenchless-australasia.com/magazines

by the Ghella Abergeldie Joint Venture (GA), founded in Italy and Australia respectively.

Watercare says GA has more than 150 years’ experience with tunnelling and wastewater projects of this size across the globe, making it the suitable contractor to create the super-sized wastewater tunnel that will reduce overflows.

Change for the future With its reputation of consistent innovation, Watercare recently developed an enterprise

Mr McCann won the Water New Zealand 2020 photo competition with this image, which shows the tug pulling a 900 mm OD high-density polyethylene pipe outfall pipeline.

model to build and deliver water and wastewater infrastructure more effectively.

Building on its 40:20:20 goal by 2024, the company is working collaboratively with selected contractors to plan and deliver a program of work rather than discrete projects, which will help drive investment and innovation in the industry while also improving cost efficiency.

Mr McCann says the future of NZ’s water

sector may see many changes, as 2020 saw Auckland hit by the worst drought on record off the back of a further drought in 2019.

Additionally, climate change is likely to deliver more extreme dry periods punctuated by more intensive rainfall events.

“The next decade will continue to see

significant investment in the water and wastewater sector with opportunities for innovation that allow cost-effective infrastructure to continue being built while minimising disruption and effects on communities,” he says.

For more information visit www.watercare.co.nz

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UNDER NEW ZEALAND

Interflow’s team worked through the night to complete the critical wastewater project.

Virus can’t stop Interflow At Moa Point, Interflow has completed one of the largest diameter wastewater rehabilitation projects New Zealand has ever seen, despite the ongoing COVID-19 pandemic.

D

uring COVID-19, some infrastructure projects – like the critical wastewater project at Moa Point in Wellington – were deemed so critical to the health and wellbeing of the local community that they could not wait. To complete the difficult project during the pandemic and against all odds, Interflow had to challenge the status quo and push the limits of traditional water infrastructure methods.

NZ’s largest water infrastructure project Beneath the coastal streets of Moa Point lies one of Wellington’s most critical sewer pipelines that manages wastewater for more than 200,000 residents. Recently, the pipeline was experiencing severe corrosion and was at risk of collapse, with the deterioration having reached the steel reinforcement of the pipeline

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– even penetrating the pipeline in places – posing a threat to the network, community and environment.

As an operator, Wellington Water understood the health and longevity of the sewer was a top priority and it publicly tendered the rehabilitation works. The tender sought an innovative yet cost-effective solution that would prioritise the needs of the community and minimise disruption to residents.

Being renowned in the industry for its appetite for innovation and commitment to solving its customers’ problems, Interflow was awarded the project. As the Moa Point wastewater rehabilitation would become the largest dimeter sewer pipeline renewal project to take place on New Zealand’s shores, Interflow says it tackled the challenge head on.

COVID-19 challenges local project Although the contract was awarded in late February, the 260 m reline of Wellington’s main sewer could not commence until April, causing crews to quickly learn the importance of adaptability and agility with the coronavirus emergency in NZ. While the country’s lockdown regulations have been some of the strictest in the world, Interflow was classified as an essential service meaning the wastewater network’s critical repairs could continue, albeit with a few workflow adjustments.

Interflow Project Engineer Saadia Ali says there were many challenges the crew overcame to ensure the project was kept on schedule.

“The expectation that our colleagues from Australia would fly out and provide support was

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no longer a reality and required us to employ some unconventional approaches,” she says.

Despite expecting assistance from Australian counterparts and training from experienced Rotaloc staff, once travel restrictions were put in place by both the Australian and NZ governments, Interflow’s crews were required to turn to virtual channels to bridge the training gap.

Tenacity and determination yields results Ms Ali says using digital technologies enabled the crew to develop the necessary skills needed to deliver these works.

“The solution was a remote Rotaloc training session held via video link to bring our team up to speed on the patented technology’s application and operations,” says Ms Ali. The Rotaloc installation of a new liner into the pipe provides a durable, long-term solution to protect Wellington’s wastewater interceptor from corrosion and support the needs of the community for at least another 50 years.

“Our team worked extremely hard to overcome the challenges faced due to the pandemic,” says Ms Ali. “We were working away from our families in

an ‘Interflow bubble’ and had to rethink the way we collaborated with our customers, contractors and the broader community.”

Commitment to the community Through collaboration and forward thinking, Wellington Water and Interflow rebuilt the city’s critical wastewater link before any significant harmful effects impacted the city. With works now completed, Wellington’s residents can relax knowing the wastewater network and services to homes, local businesses and the community are back to being fully operational.

Interflow says its flexibility during the pandemic allowed the company to tackle the challenges of COVID-19 head on and deliver the project successfully.

“The virtual training and collaboration that took place during this project demonstrate the company’s innovative approach to problem solving,” says Interflow.

“Furthermore, the solution is now incorporated into the NZ team’s service offering moving forward, enhancing their ability to respond to challenges of this type in the future.”

Due to COVID-19 restrictions, all site personnel were required to wear PPE equipment such as face masks.

For more information visit www.interflow.com.au

Changing the game

across the 4 Waters

Water

Wastewater

Stormwater

Culverts

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Ticking every box Pipeline and Civil is an expert in the design, planning and delivery of complex projects across a range of sectors, including water, energy and telecommunications. The company has completed countless underground infrastructure projects throughout New Zealand, often using its own custom-made trenchless tools to ensure elite performance.

Pipeline and Civil owns a wide range of equipment, which means a high degree of flexibility can be achieved. A strong emphasis on training and development at the company means staff get exposed to a wide range of engineering problems. Large PE and Concrete lined steel pipelines are a speciality. The image above shows work in progress on a 7 km of 710 OD PE pressure wastewater pipe in northwest Auckland.

The Pipeline and Civil team specialise in deep, difficult large diameter pipeline construction involving green and brown field sites. Working in deep trenches requires particular expertise and the company owns an impressive amount of bespoke shoring equipment to suit the wide range of applications required.

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Pipeline and Civils’ custom built telescopic conveyor can be used for backfilling trenches from the end where access is not possible to backfill from the side of the trench. This is particularly relevant in constrained urban areas where local authorities demand that traffic lanes remain open, reducing lateral safety zones and preventing equipment from accessing the side of the trench.

UNDER NEW ZEALAND

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ipeline and Civil attributes its success to both its outstanding project expertise as well as its strong company culture of collaboration and inclusiveness. The company places a significant emphasis on the values of safety, quality, honesty, care and success when delivering each project and takes great pride in delivering results for clients on time, on budget and with a low impact on the surrounding community.

Although it can now claim expertise in many areas, Pipeline and Civil was originally founded on its ability to deliver high quality water infrastructure. The company has constructed some of New Zealand’s largest water mains and has the capability to undertake many different construction and rehabilitation works, including installing high-density polyethylene rising mains, pump stations and associated pipe works, water treatment plants and storage tanks.

Pipeline and Civil sees immense value in using trenchless technology due to its environmental, practical and cost benefits, with the company saying most of its projects now use at least one trenchless method.

Pipeline and Civil is an expert in slip lining, having installed pipe strings up to 400 m in length

and 1,400 mm in diameter, while its horizontal directional drilling (HDD) knowledge is also top level and its in-house welding team ensures only the highest quality welds are performed on a project. Pipeline and Civil also boasts expertise in pipe bursting, pipe ramming, microtunnelling and structural lining – the result of many years of experience across its teams and its involvement in some of NZ’s largest and most complex trenchless projects.

Additionally, the company has strong relationships with subcontractors that are experts in these methodologies, ensuring clients have the sharpest minds in the business on hand for their works.

Custom linear winch In addition to its project expertise, the company’s leading technical and engineering knowledge has allowed it to develop its own custom-made tools to use onsite. Recently, a project with Hastings District Council and Stantec provided the opportunity to use a custom hydraulic winch, designed and built by Pipeline and Civil.

The hydraulic linear winch was developed for the specific purpose of pulling polyethylene (PE)

pipe through a host pipe and can be adjusted to suit different sized pipes. Capable of pipe pulls up to 400 m in length and applying up to 45 t of force to overcome internal friction, the winch has now been successfully tried and tested across five projects by Pipeline and Civil.

The works included the installation of 1,460 m of DN355 PE pipe that was relined, using the hydraulic winch, through the existing 375 concrete pipe, which was very deteriorated in places and had recently required several repairs. To properly rehabilitate the asset, relining had been chosen as the optimal solution.

Relining an existing host pipe greatly extends the life span of the pipe and in this case also allows it to withstand more pressure and more flow. The Pipeline and Civil team also shut down three pump stations and installed three new valve connections and two 90° bends over the 1.5 km stretch.

The upgrade will allow the sewage system to operate with more efficiency at full capacity and the overall project was completed in just under 10 weeks.

For more information visit www.pipelinecivil.co.nz

Expertise Critical asset renewals Large diameter pipeline construction Concrete structures Mechanical works

Capability to service projects in NZ’s north island •

Recently completed Park Road Rising Main Rehabilitation for Hastings District Council.

•

Extended the life of the 1400m long 375NB RCRRJ rising main by slip lining with a 3550D PE pipe.

•

Designed and implemented a flow management system that maintained the operation of three pump stations.

•

Slip lining completed using custom built 500kN linear winch.

Civil engineering design & construction

Visit our website for more info: www.pipelinecivil.co.nz/ Pipeline&Civil_HP_AD_TRN_SEPT_2020.indd 1

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UNDER NEW ZEALAND

Pipe Tech NZ’s products are used and loved by contractors all across the country, including on the pictured InPipe Logistics (Fonterra) project.

Liner won’t croak after quake PipeTech provides intelligent and environmentally friendly trenchless rehabilitation solutions that focus on decreasing costs and increasing efficiency. The company’s AM-LINER II® is a method for rehabilitating damaged wastewater and stormwater pipelines encompassing these qualities and has proven its strength under the most intense environmental circumstances.

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ipeTech’s AM-LINER II is manufactured from a polyvinyl chloride (PVC) compound specifically formulated for pipeline rehabilitation and is resistant to all normal sewer effluents due to its superior chemical and flame-resistant properties. It is manufactured in a factory and not in the ground, with the physical properties of the liner known at the time of manufacture rather than weeks after installation.

AM-LINER II provides a cost-effective, minimally disruptive and efficient means of rehabilitating even severely damaged sewer pipes. Once installed, the PVC liner is continuous from manhole to manhole, eliminating leaking joints, root intrusion and further damage to the existing host pipe by corrosive sewer gases.

There are no hazardous chemicals to handle, no noxious odours and no hazardous materials released into the environment, while the smooth interior surface even transitions through offsets to give enhanced flow characteristics to the rehabilitated pipeline.

24 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

Tried and tested Following the 2010–2011 Canterbury earthquake on New Zealand’s South Island, the region’s wastewater network was extensively damaged, causing issues for communities affected by the shock. The earthquake showed liquefaction and resulting ground deformations caused major geotechnical hazards to civil engineering infrastructures such as pipelines.

In particular, sewer pipes have been damaged in many areas of Christchurch as a result of liquefaction-induced lateral spreading near waterways and ground oscillation induced by seismic shaking. While most of the damaged sewer and water pipes in Christchurch were in sections made of asbestos cement, several segments of PVC, concrete and polyethylene (PE) pipes were also sheared, pulled out or compressed at various levels, with these damages affecting the sewer network’s functionality in many places.

A study comprising an extensive thesis completed by then-Auckland University student

Shyamal Ram investigated the performance of sewer pipes equipped with the AM-LINER II during earthquakes and established its performance as a structural retrofitting measure to earthquakeproof sewer pipes.

The key objective of this research was to analyse the response of buried sewer pipes to liquefaction induced permanent ground deformation, particularly in the transverse direction and was completed by investigating the use of a flexible liner as a potential countermeasure to increase pipe capacity.

Underpinning this study was the goal to ultimately retain pipe serviceability following an earthquake, thereby reducing community impacts and rehabilitating the wastewater network.

On average, the AM-LINER II increased the displacement capacity by 191 per cent, with the results confirming the product as an effective countermeasure for sewer pipes in liquefied ground, not only in terms of increased deformation capacity, but also because

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AM-LINER II can prevent an influx of sand and water through broken pipes. This allows sewer pipes equipped with the liner to remain serviceable even under severe liquefaction conditions.

As a result, restoration of damaged pipes can be delayed so that attention can be provided to more important services or facilities.

Repeat customers PipeTech has been consistently lining pipes for a range of clients and councils throughout NZ, including Veolia Papakura, New Plymouth District Council, Stratford District Council, South Taranaki District Council, Whanganui District Council, Manawatu District Council, Fulton Hogan (Wairoa District Council), Ashburton District Council, InPipe Logistics (Fonterra) and Port Taranaki.

Manawatu District Council Special Projects Manager Chris Pepper praised the AM-LINER II as a reliable and efficient trenchless product.

“The AM-LINER II is quick and easy to install, is a fully structural product, has a proven seismic response and a demonstrable life cycle well in advance of 100 years,” he says.

“It is fully compatible with other trenchless

The PipetTech team busy on site installing the AM-LINER II, designed to withstand even the toughest conditions.

inspection and repair techniques for sewers, including Later Joint Repair (LJR) products.”

Whanganui District Council Engineering Officer Chris Carter added that the council has used the reliable product since 2011 with no issues.

“Easy and quick to install with seamless lengths of a stable material, WDC have found it an excellent solution to remedy infiltration, root intrusion and structural faults,” said Mr Carter.

Another long-term user of the AM-LINER II, South Taranaki District Council Senior Projects Officer Colin Dudley, said the product allows for the option of “relining over replacing many of our sewer lines, with far less disruption to traffic flow and no road reinstatement required”.

The AM-LINER II is PipeTech’s exclusive product range, with the company being the sole licenced distributor in NZ.

For more information visit www.pipetech.net.nz

PANEL LOK

MANHOL E RE LI NING SY ST EM

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 25

CARBON EMISIONS

Prioritising health in a post-COVID climate

by Sophie Venz, Assistant Editor, Great Southern Press

Australia has long been focused on reducing its carbon emissions for the sake of improving the climate. Yet in the wake of the COVID-19 pandemic, the health benefits stemming from reducing emissions are proving to be another reason for local contractors and companies to prioritise creating a low carbon future.

A

ustralia has committed to the Paris agreement with its climate change target being a reduction in national emissions by 26–28 per cent on 2005 levels by 2030. Through direct action policies that reduce emissions, increase energy productivity and improve the health of the environment, the Federal Government says the nation is on track to meet its 2030 target.

Trenchless technology tackles the target Trenchless technology, when compared to open cut methods of excavation and construction, eliminates the need to remove and then replace large sections of material aboveground, saving a considerable amount of time, manpower and – most topical of all – energy.

The March edition of Trenchless Australasia featured a thorough look at how trenchless companies can drill down on their operational emissions, with the article discussing how companies that have not adjusted their operations to prioritise a cleaner future are often on the wrong end of public sentiment.

Because of such public pressure, major projects – such as the Metro Tunnel project in Melbourne, Victoria – are monitoring, managing and mitigating the emissions produced by construction works in accordance with international, Commonwealth and state-specific legislation, objectives and requirements.

However, these changes are not only being enforced by construction projects and their contractors.

Pexels © Alena Koval

CARBON EMISIONS Across the Australasian region, utilities, corporations, associations and societies are putting forward their objectives to work towards net-zero emissions. For example, global fuel additive company Cataclean’s aim is to drive down carbon emissions, with Director Jason Sharman saying mining and infrastructure industries amount to approximately 25 per cent of the world’s carbon pollution.

“While heavy machinery is working hard output is high in both emissions and fuel consumption. Cataclean can reduce both of these environmental dangers, save money and [help] with the ever-increasing demand on companies to reduce emissions,” he says.

Additionally, speaking on behalf of the ASTT about the currently in-development Carbon Calculator, Mott MacDonald Water Sector Lead New Zealand Thomas Haarhoff says “reducing carbon emissions has almost become a moral obligation,” rather than simply an option.

Following the COVID-19 pandemic, this push for a cleaner future does not solely involve the benefits to counteracting climate change and the health of environment but the health of the population itself.

Change for change ‘Population health’ stems even further than the physical wellbeing of individuals and extends to the economy as well. Australia’s economy – like many others across the globe – has been severely affected by COVID-19; however, reducing emissions may be able to play a helping

hand in bringing some much-needed pocketchange into Australia’s finances.

In 2019, the Melbourne Sustainable Societies Institute at the University of Melbourne released a report that found the nation would spend AU$535 billion on economic damage alone within the next decade if emissions continue at the current rate.

This means, by reducing carbon emissions and curbing the impact of damaging climate actions, the Australian economy would be AU$550 billion better off by 2030.

“Overall, the costs of emissions reduction are far less than the damages of inaction – even with modelling underestimating damages from climate change and overestimating the costs of emissions reduction,” the report says.

The reports authors Tom Kompas, Marcia Keegan and Ellen Witte find the change would present Australia with a sound economic development, where “the economic benefits of a transition to a clean economy easily outweigh the costs”.

Whether a company’s desire is to reduce its carbon emissions for the sake of counteracting climate change, preventing further illnesses from spreading to the population or to assist with economic recovery, it is clear the benefits of a low carbon economy can provide a brighter global future.

HX30

VACUUM EXCAVATOR

Creating a climate of health Although the health benefits of a low-carbon world are currently topical, it is not a new

phenomenon. In 2012, a Health and Environment Alliance report stated climate change and human health are deeply intertwined, which should be considered when new policies are developed.

“Moving to a low carbon economy will be associated with substantial health benefits,” says the report.

“These health benefits have a substantial economic impact everywhere, including in industrialised countries.”

While there are many health concerns associated with the human consumption of carbon emissions, notable occurrences include increasing air pollution levels that will lead to more widespread diseases, more cases of respiratory illnesses such as asthma and, ultimately, a higher fatality rate.

Counteracting these issues with low carbon emission solutions would benefit both humans and the environment, and help prevent a future wear protective masks are necessary to combat both contagious viruses and the air itself.

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SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 27

©vegefox

ASTT makes calculated steps towards carbon reduction The ASTT has formed a SIG for the creation of a Carbon Calculator, a tool aiming to promote innovation in the trenchless technology sector by encouraging contractors, operators and asset owners to achieve better results concerning carbon emissions.

T

he purpose of the ASTT is to advance the science and practice of trenchless technology for the public benefit, while promoting education, training, study and research and practice for the public benefit and to publish the useful results of the same.

With this in mind, paralleled with the global goal of reducing carbon emissions, the ASTT formed a Special Interest Group (SIG) of leading industry professionals to create a solution that supports the mitigation of climate change impacts.

Primary purpose Mott MacDonald Water Sector Lead New Zealand, and Carbon Calculator SIG member Thomas Haarhoff says the carbon calculator “aims to use carbon as a measure for efficiency, encouraging people to innovate and get better

28 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

results around their carbon emissions”.

“As trenchless construction may not always be the low carbon option, the calculator will help our clients and organisations to make informed decisions about reducing their carbon footprint,” he says.

“The intention of the calculator is just to be a simple tool. For example, contractors can say they have 100 m of sewer to be relined, sliplined, etc., and can use the calculator to determine which of the options will have the lowest carbon output.”

With an impending global need to reduce carbon emissions, the calculator will play a vital role in helping the trenchless sector do its part by acting as a tool for ASTT members to promote trenchless technology usage, allowing informed decision making to occur between various construction methods and driving innovation on carbon reductions.

“The main thing is, people potentially underestimate the carbon impact of construction and the total carbon we emit every year,” says Mr Haarhoff.

“By focusing on the industry, we can make a great change towards carbon emissions and climate change.”

“The main thing is, people potentially underestimate the carbon impact of construction and the total carbon we emit every year.”

CARBON EMISIONS

Calculated steps The ASTT says its Carbon Calculator is not to be relied on to make commercial decisions nor is it a tool that will accurately define Capital Carbon Baselines, noting that there is no specific, quantified carbon goal that the calculator aims to reach. Rather, the tool will be used to promote best practices across the industry.

The three steps the calculator aims to take are:

2.

Mr Haarhoff says the calculator will be used on individual projects and tested across various areas, with the onus on contractors and client organisations to use the tool and consider their own impacts.

Ongoing developments Mr Haarhoff says the calculator is still in early stages, with the ASTT receiving its application approval in June.

For more information visit www.astt.com.au

MT9

3.

Reduction – reduce the carbon impact of infrastructure.

Behaviours – improve the behaviours of designers, constructors and entire supply chains to reduce infrastructure carbon.

Union – create a common way of working to calculate carbon reductions across the industry, setting the narrative.

At the end of June, four different suppliers had submitted tenders for the calculator’s development, with the winning bid yet to be announced.

During the early days of the Carbon Calculator’s development, the SIG plans to continue promoting the innovation through its usual channels such as the ASTT forums, which are currently taking place as virtual events due to COVID-19 restrictions.

There will also be sessions dedicated to carbon calculator at next year’s No Dig Down Under event, which is the largest conference and exhibition dedicated to trenchless technology in the southern hemisphere.

If you are interested in being involved, please contact event organiser Great Southern Press on +61 3 9248 5100 or email conferences@gs-press.com.au

MICROTRENCHER

1.

“By focusing on the industry, we can make a great change towards carbon emissions and climate change.”

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SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 29

VACUUM AND HYDRO EXCAVATION

A Vac Dig HVD 10,000 L vacuum excavator.

Top quality trucks vac in town Vac Dig is one of Australia’s leading manufacturers and suppliers of non-destructive digging equipment, bringing the best technology to market with friendly customer service.

From small beginnings, the family-owned business has thrived to become one of the sector’s most trusted companies.

V

ac Dig General Manager Marc Farrall has spent decades in the utilities sector and has seen the needs of the industry grow and change over time. After 17 years working in horizontal directional drilling (HDD), Mr Farrall spotted a need for non-destructive digging (NDD) equipment that was not yet readily available.

“Market research also highlighted that most of the equipment available was imported and restricted to fixed designs,” says Mr Farrall.

“Having direct access to our family engineering business, we set about designing and 30 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

manufacturing our first vac truck, designed to my specific needs, all Australian made and built to suit our demanding environment. Our first truck went into service with my drilling company in 2010 and immediately attracted much interest from colleagues and the Australian market in general.

“From these humble beginnings Vac Dig commenced commercial production in 2011 and has never looked back.”

Today, Vac Dig uses the latest innovative technologies and manufacturing methods to position itself as a leading NDD equipment supplier in Australia.

“We have the benefit of operating our equipment in the field, on real jobs, giving us the ability to fine tune performance, improve ease of operation and safety.”

• Designed and built with 40 years of engineering and manufacturing experience • Designed in Australia for Australian weather conditions • Robust, efficient, versatile, economical vacuum trucks

Call Marc Farrall on 0407593137 www.vacdig.com.au info@vacdig.com.au

VACUUM AND HYDRO EXCAVATION

A Vac Dig HVD 7,000 L vacuum excavator.

“We pride ourselves on our after sales service and product back up; it’s second to none.”

Mr Farrall says the company refuses to compromise on premium components and selects the best materials to maximise performance, payloads, reliability and, most importantly, its customer’s profitability.

“Unlike many other companies, we have the benefit of operating our equipment in the field, on real jobs, giving us the ability to fine tune performance, improve ease of operation and safety,” he says.

“We pride ourselves on our after sales service and product back up; it’s second to none. Our entrepreneurial, innovative and progressive approach to all that we do will

continue to place us ahead of the rest and we are proudly Australian made. Manufacturing in Australia is vital to our future prosperity.”

The SVD Range Vac Dig’s SVD Range of trucks is one of the most efficient and reliable machines currently available to the Australian market, with a range of useful features to suit a range of job circumstances. The truck’s hydraulic system is driven by heavy duty oil bath clutch PTO’s with close coupled Hydro Leduc Industrial standard bent axis piston pumps, while the integrated engine RPM control is installed and pre-set to raise the truck RPM level to up to two pre-set RPM ranges.

Equipped with a Jurop Helix 750 air injected blower, the system has specific and accurate lobe profiles granting high volumetric efficiency and high flow rates combined with minimised dimensions and vacuum rates that can reach 93 per cent of 28 inHg of vacuum.

The SVD Range is available in vacuum tank

capacities of 7,000 and 10,000 L for debris and the tanks are constructed from 6 mm steel.

The trucks also have a capacity of 2,000 L for water integrated into the debris tank with an option for larger capacities, while 20 m of 3/8 high pressure hose on a retractable reel, a 1.2 m potholing lance with turbo nozzle and a 1.2 m, 6 inch (152 mm) suction comes standard issue.

Mr Farrall says regardless of whether a customer is interested in a 1,000 L or 10,000 L truck across any range, they will have access to the best customer service available from experienced and knowledgeable experts.

“We are not just a manufacturing company, we also operate our equipment on a daily basis so when you call to discuss your own requirements, rest assured you will be guided by people who know exactly what you’re up against, not just fill your head with BS to make a sale.”

Vac Dig’s vacuum excavators are available for rent or purchase all throughout Australia.

About Vac Dig A subsidiary of the Farrall Group of companies, Vac Dig has a vast national network manufacturing and supplying vacuum excavation equipment for sale and hire. Vac Dig is a preferred manufacturer and supplier of hydro vacuum excavation equipment for non-destructive excavation in the power, telecommunications, rail, construction, civil, commercial and residential sectors and its vehicles are proudly Australian made. For more information visit www.vacdig.com.au 32 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

VACUUM AND HYDRO EXCAVATION

Hitting the hydro excavation bullseye Direct Hit Sewer Nozzles’ new Australian-made heavy-duty reverse turbo nozzle is the first nozzle designed specifically for the hydro excavation industry. With a five year life expectancy, individual parts that need minimum maintenance and rotor kits that only require replacement every three months to a year, the sustainable product is the solution Australian hydro excavation companies have been asking for.

D

irect Hit Director Jim Paris says a common problem for hydro excavation contractors is the nozzles used often break down after only a few uses, meaning they need to be constantly replaced, wasting both time and money.

Working directly with different hydro excavation companies across Australia, Direct Hit asked what their main problems were on projects and then developed a solution to mitigate these issues: the Heavy Duty Hydro Excavation Turbo Nozzle – 18 Degree.

Designed for the industry The nozzle provides a high impact, controlled rotation with a water stream that offers a greater impact and cutting efficiency than other nozzles, reducing the labour cost of projects.

This improved cutting efficiency compared to other rotating nozzles also reduces water consumption by up to 25 per cent.

With a locked-in position of the seat, it cannot move inwards towards the rotor meaning no damage can occur and the rotor can be dismantled on site to be cleaned from any debris and get the project back up and running.

Additionally, the nozzle’s individual parts can be replaced as needed rather than having to purchase an entirely new nozzle if it gets

The Heavy Duty Hydro Excavation Nozzle with its individual, replaceable parts.

damaged or worn. It also comes with an outside protection cover that can be replaced by screwing it off and putting a new cover on, again without having to replace the entire nozzle.

The nozzle is designed in a way that the operator out on the site can take it apart and make it work again, rather than having to constantly invest in replaceable nozzles.

Mr Paris says the nozzle is the solution the hydro excavation needed, a long-lasting product that increases operators’ efficiency levels and subsequently their productivity. As users no longer need to take a nozzle offsite and constantly replace them, the Heavy Duty Hydro Excavation Turbo Nozzle – 18 Degree is saving both time and money.

A money-saving investment Mr Paris says the new product fixes the problems that existed with nozzles having to be constantly replaced.

“Now, you can have a nozzle that you can just use and maintain, it is not a throwaway product,” he says.

For more information visit www.directhitsewernozzles.com

Hydro excavation nozzles that last five times longer Anyone who works in hydro excavation knows how disposable and unreliable nozzles are, but we’ve changed the game. Combining advanced turbo nozzle technologies in our assemblies,which can be easily dismantled to clean debris from the nozzle rotors, with a heavy duty unbreakable seat and rotor, Direct Hit has created the world’s first heavy duty hydro excavation nozzle.

Our nozzle assemblies do not require servicing. That’s right! No servicing is needed.

What sets us apart Our nozzles have been designed to specifically address the flawed engineering and disposability of traditional and cheaper nozzles. If you’re using a surface cleaning nozzle for hydro excavation then you’re sacrificing productivity and performance. Direct Hit has a solution that goes past that limitation.

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The secret is out!

Contact us to find out what sets our nozzles apart from the competition and save time, and money.

Jim Paris +61 488 30 80 80

14/8/20 12:25 pm

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 33

VACUUM AND HYDRO EXCAVATION

A Cappellotto unit on display out the front of the new Western Australian KOR facility.

Local servicing at its KOR In early 2020, KOR opened a facility in Perth to support the growth of the vacuum truck industry in the region, demonstrating its commitment to locally servicing and supporting Western Australia.

K

OR’s new facility is located in Cockburn Central in the heart of Perth’s industrial zone and is a convenient 20 minute drive from Perth CBD, where it will support the industry’s growth in a region where vacuum and hydro excavation technology has thrived in recent years.

KOR says supporting WA’s growth with the equipment the industry needs is pivotal to the success of the state. Partnering with high quality product suppliers from around the world, KOR has the latest range of parts and accessories from Cobra, Southland Tools, Uraca, Duebre and an exclusive supply of Cappellotto equipment all in stock.

With Perth being the world’s most isolated capital city, KOR Business Manager for WA, South Australia and the Northern Territory Peter Jones – who lives locally in WA and is also the AUSJET ADVCA Chair – says Melbourne and Sydney are much further away than many people realise.

“Because of the significant distance between Perth and the eastern seaboard, it is important that we provide our customers the level of service and availability of spare parts they need

34 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

locally in WA to confidently operate Cappellotto equipment,” says Mr Jones.

Further to its growth in WA, KOR has also opened a new facility in Preston, in Western Sydney’s industrial belt, to support Australia’s largest city with a spare parts range, unit availability and onsite industry professionals to support the product in the field.

KOR says this strategy supports the expansion of Australian cities and the largescale infrastructure projects that continue to encourage economic growth.

“Projects including the Paramatta light rail, Greater Western Sydney Airport, a new runway at Melbourne airport, freeway upgrades and expansions across our cities and level

crossing removal projects are all examples of projects where Cappellotto units operate,” said the company.

With unit parts and accessories now available in WA, Victoria, NSW and Queensland, KOR’s national footprint continues to grow, giving national fleets flexibility and local businesses access to a world leading industry equipment brand, Cappellotto.

KOR says customers trust the company because of its investment in the product, its Australia-wide operations and its continued product innovations that encourage a safer, environmentally friendly and more productive future.

About KOR The KOR team is built up of professionals with a wealth of multiple-industry experience in hydro excavation, waste recovery, drain cleaning and vacuum loading. Supported by Cappellotto, the global leader in vacuum recovery and high-pressure water jetting technology, KOR says it is committed to providing a true customer-focused experience. The company follows its philosophy of “Your asset, our product” and operates with this in mind at all times.

For more information contact info@kor.com.au

VACUUM AND HYDRO EXCAVATION

SureSearch recently purchased a DCS Manufacturing Extractor to use on projects across the country.

DCS manufactures more hydro vac success DCS Manufacturing is experiencing continued success as new and repeat customers take on its machinery. Most recently, DCS says valued clients SureSearch and Nu-Jet have made more purchases for machinery and equipment that are already been using on projects across the country.

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stablished in 1993, DCS Manufacturing has long been servicing the stormwater and sewer drain cleaning and vacuum recovery industry. With specialised systems underpinned by its extensive range of accessories and spare parts, DCS also holds a large inventory of support equipment that cover tasks from basic pipe cleaning through to tree root and concrete removal.

The company says it has entered an exciting new phase in its ongoing development as it broadens the horizons in the industry by offering products, services and technology that have never been seen before. With a passion for research and development, DCS says its philosophy is building long-term relationships with customers by delivering quality products, the right advice and the best outcomes.

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Customer satisfaction guaranteed Attesting to this philosophy of building long term relationships is SureSearch Underground Services, a leading utility locating, mapping and asset protection service provider with operations all over Australia. Due to its recent expansions into Victoria and southeast Queensland, SureSearch required an additional combination jet and vacuum truck to add to its growing fleet.

SureSearch chose DCS’ Extractor, an Australian designed and manufactured system that complies with all Australian Standards and Compliance Regulations, after previous experience with the company and its machinery.

The Extractor is a high-pressure jetting system with vacuum recovery that offers an all-round solution to cleaning and maintenance of stormwater and sewer lines with its hydro -

excavation capability. The machine is equipped with both remote and manual controls, has an 8,000 L debris collector body, a water capacity of 6,000 L and a hydro pump of 200 bar.

SureSearch prides itself on using the latest equipment to provide its customers with unprecedented results for safe excavation, construction and planning, saying the “DCS Extractor has been a fantastic, simple to use machine compared to others on the market”.

It has been used on multiple projects around Sydney for both jetting and nondestructive digging (NDD) while also venturing into the Snowy Mountains for stormwater culvert cleaning.

Now, SureSearch says it can provide all NDD and jetting requirements out of its Melbourne, Brisbane, Unanderra, Sydney and Central Coast

VACUUM AND HYDRO EXCAVATION

depots, and DCS Manufacturing says it also offers both extensive spare parts back up and service support across the country.

Another customer, Tasmanian-based Nu-Jet, also recently purchased machinery from DCS Manufacturing to use on local council works throughout the state including service needs of TasWater.

Offering a full range of drainage and relining solutions, Nu-Jet says it is a local drain cleaning, plumbing, lining and CCTV specialist that can take on any residential or commercial requirements and will continue to do so using its Longo 5000 Combination Unit.

The Longo 5000 is a combination high velocity jetting system with vacuum recovery, encompassing a compact and versatile system featuring high velocity jetting and an industry leading vacuum recovery system.

Designed for the cleaning and maintenance of sewer and storm water lines along with vacuum removal of waste from wet walls, septic tanks, collection ponds and more, the Longo 5000 Combination Unit is simple in its operation, requires low maintenance for its upkeep and provides built-in safety features for the ultimate protection of both operator and system.

The Extractor is a high-pressure jetting system with vacuum recovery.

The machinery comes with remote and manual controls, a 5,300 L debris collector body, 2,500 L of water capacity and a hydro pump operating at 210 bars. Longo is a leading advanced engineering company with more than 10 years of experience in manufacturing vehicles for the environment, allowing it to gain leading

positions in the European and global markets.

DCS Manufacturing delivered Australia’s first ever Longo 5000 Combination Unit in March 2020 to Glen Eira City Council in Victoria after becoming the exclusive Longo agents and distributors across Australia and New Zealand.

For more information visit www.dcsmanufacturing.com.au

Versatile fleet

for Hire and Lease Combivac can help you manage your projects with modern solutions to your equipment needs.

Whether you have a breakdown, heavy workload period or are taking on new projects, Combivac provide specialised vehicles for long or short term hire.

Our jetting and vacuum trucks offer the most reliable systems available in the industry.

Contact us on 03 9775 1330 or at nick@combivac.com.au CombiVac_TRN_Sept_2020_HP_AD.indd 1

Australian Made We have High Velocity Jetting Systems, Combination Jet/Vac Systems, NDD Systems and Longo Combination Jet/Vac Units Available for hire TODAY!

33 Bazalgette Cres, Dandenong Sth VIC 3175 13/8/20 2:06 pm

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 37

VACUUM AND HYDRO EXCAVATION

KAISER jets to the top in Australia KAISER brings top of the line European engineering to Australian shores with its high-quality range of sewer cleaning equipment and machinery. The company recognises the growing need for efficient, high-performance sewer cleaning vehicles and continues to lead the industry charge towards greater technologies.

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n the world stage, the foundations for KAISER were set more than 100 years ago, with the same principles of professionalism, technological advancement and strong customer service continuing to permeate through the business in its Australian arm. On an international level, KAISER is a third-generation family company that has evolved into an industrial enterprise with manufacturing sites in six countries.

KAISER specialises in the design, engineering and manufacture of world class vacuum and jetting vehicles for water recycling, sewer, stormwater, hydraulic excavation, industrial and dry suction applications. The company also designs and manufacturers pumps, components and walking excavators for the global market.

KAISER CEO Markus Kaiser says it is the continuity of its innovative developments that creates the healthy global brand that exists today.

“We are aware of the fact that innovations – aimed at added value for the customer – are key to maintaining our technological edge and to extending our leadership position in the future,” he says.

“That is why KAISER invests in pioneering product strategies, customer proximity, a strong branding policy and, last but not least, a powerful corporate culture.”

KAISER has extensive industry experience throughout Europe and the rest of the world, with its technology and development department playing a key role within the business. Since 1957, the company has specialised in vehicle mounted pressure/vacuum and jetting equipment, as well as mobile walking excavators, and kept these as its primary focus.

Unlike other manufacturers in the industry, KAISER has a singular concentration on high performance sewer cleaning vehicles, allowing the company to dedicate all its technological innovation to the sector.

KAISER also attaches great importance to professional consulting and customer care, with customers able to rely on experienced and technically accomplished employees.

Professionalism in direct customer contact takes top priority but, for KAISER, selling a product marks a beginning and not an end.

38 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

The KAISER Elegance Combination can handle a wide range of applications.

The company escorts and supports its customers through the entirety of its product experience so they can fully exploit the potential of its vehicles and achieve their own business goals.

Making an impact in Australia KAISER has a strong history within Australia, having notably built one of the biggest recycling vehicles ever produced for the City of Brisbane in 1993. This unit featured seven driven axles, two pressure convertors (680 L/min at 200 bar), liquid ring pump (6,000 m3/hr or 3,530 cfm), double high-pressure hose and two auxiliary engines.

The unit was affectionately known as the KAISER MegaCombi and helped begin the strong relationship that still exists between the company and Flexible Drainage, then known as Flexible Pipe Cleaning Tools, today.

At the start of 2020, KAISER made the decision to come to the Australian market to directly support its existing customers and build on its reputation. Unlike other suppliers, KAISER in Australia is part of the same entity as the international brand, rather than being a third-party intermediary business.

The new face of KAISER in Australia is

National Area Manager Kristian Stamenkovic who has extensive experience in the vacuum truck industry including with a variety of customer-built light, medium and heavy vehicles and specialised capital equipment.

Mr Stamenkovic has more than a decade of experience in consulting, designing and selling trucks and other specialist equipment, which, coupled with his extensive background in construction and demolition, gives KAISER a local representative that exemplifies the company’s global structure of customer focused support and technical knowledge.

The company is also continuing its more than 20-year relationship with National Environmental Equipment (NATEE), which provides after sales service and support for KAISER in Australia. Clients can contact NATEE for local service and maintenance support, the supply of spare parts and training throughout the country.

Undeniable quality KAISER now supplies its world-leading vacuum recycling, combination, hydro vacuum and jetting units directly to the Australian market. One of its most popular vehicles in the region has been the class leading and versatile

VACUUM AND HYDRO EXCAVATION AquaStar, standing as the latest generation of KAISER’s sewer and drain cleaning and industrial disposal series that sets new standards in efficient sewer and drain cleaning and water recycling.

Its extremely versatile capabilities are thanks to a modern design and striking new features including a remote controlled centre dividing door, multiple jetting hose sizes and the combined hose boom, along with proven in-house designed and manufactured highpower components KDU water pump, KWP vacuum pump and Single Stage Water Recycling RotoMax System. This unit can operate in all sewer, stormwater, hydro excavation, pit cleaning and industrial disposal conditions, with a maximum jetting capacity of 500 L/min and a maximum water pressure of 200 bar.

The vacuum pump delivers a maximum air flow of up to 4,000 m3/h, while the combined jetting and suction hose boom can take a suction hose length of up to 20 m and with the flexibility of the boom – offering 300° swivel and telescoping functions as well as up and down movements – further expands the working range.

The ultramodern KAISERtronic control system has enabled further optimisation of the hydraulic drive and output-regulated pumps that only deliver the capacity required,

making the entire KAISER Water Recycling range decidedly more fuel-efficient while still providing consistently high performance.

Additionally, the integrated remote maintenance system and even simpler handling enhance the operational efficiency of the vehicles and facilitate maintenance.

KAISER is also offering the new generation of its ECO 3.0 range, which features increased freshwater volume with a simultaneous significant payload increase. The vehicle is equipped with standard features such as the RotoMax, KDU, KWP and KAISERtronic control system where all relevant operating statuses are visualised by modern graphics on the remote control and control panel, while jetting and vacuuming capacity can be set independently of one another.

The ECO 3.0 is reliable even in the toughest conditions and has continually proved its worth as one of the superior choices on the Australian market.

For flexibility, KAISER’s Elegance 2.0 uses triplex plunger pumps that are available for the high-pressure system and positive displacement blowers for the vacuum system, with the respective pumps located between the driver’s cab and the tank.

This is performed by means of the power take-off on the carrier vehicle or a separate intermediate gearbox. KAISER has just redesigned a new range of Elegance 2.0 units featuring 6x4 hydrovac, 8x4 hydrovac, 6x4 combination and 8x4 combination units specifically designed and engineered to meet Australia’s unique market and conditions.

KAISER currently has the AquaStar III 8x4 Water Recycling unit and CityCycler 6x2 Water Recycling unit available in Australia, while the ECO 3.0 8x4 Water Recycling unit, Elegance 2.0 6x4 Combination unit and Elegance 2.0 6x4 HydroVac are in production.

KAISER’s wide range of recycling, combination, hydrovac and jetting units are designed to meet the highest performance requirements with the flexibility to handle a wide range of applications. Vehicles can be adapted to suit each respective customer’s requirements and the KAISER team will continue to work with buyers after a purchase has been made to ensure a maximum performance guarantee.

KAISER prides itself on meeting each and every customer need, drawing on its six decades of vacuum and jetting equipment experience to fulfil any requirement.

For more information visit www.kaiser-technology.com.au

KAISER Technology Top performance and reliability thanks to innovation and design One of the world’s leading manufacturers of vehicle mounted recycling, vacuum and hydro excavation equipment, KAISER Group, is now directly supporting customers in Australia and New Zealand.

World class equipment which is already on the ground, arriving soon or production for the local market, includes:

• Kaiser’s flagship AquaStar III 8x4 water recycler • CityCycler 6x2 water recycler • Elegance 2.0 6x4 Combination • Elegance 2.0 6x4 HydroVac • ECO 3.0 Water Recycling 8x4 • Elegance 2.0 HydroVac 8x4.

Contact us today to hear about our introductory offers and secure your world class machine.

Kristian Stamenkovic 0436 800 984

Kaiser_TRN_Sept_2020_HP_AD.indd 1

www.kaiser-technology.com.au

14/8/20 3:22 pm

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 39

VACUUM AND HYDRO EXCAVATION

Mainstream Industries’ Industrial Vacuum Combination Unit.

A Mainstream solution for unique challenges Mainstream Industries has provided industrial services across the commercial, mining, civil and supportive industries for more than 25 years, with the company’s growth attributed to strong relationships with clients by adapting to unique requirements. As the preferred contractor for many major organisations, Mainstream’s business has grown to include a wide range of services.

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ased in New South Wales with services across the country, Mainstream Industries’ trenchless capabilities include high pressure water blasting underground utility locations; drain and pipeline cleaning; CCTV pipeline inspections hydro excavation and pipeline pigging.

Mainstream Industries says it has become an industry leader by providing a world class interactive, integrated management system, the latest technology in equipment and training its personnel to the highest possible standard.

“Our wide range of services offer a comprehensive, cost-effective solution for your locating, hydro excavation, pipeline cleaning, CCTV inspection and waste removal needs.”

Locating underground services Mainstream uses the latest technology and precision electromagnetic and RF Marker

40 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

location. This technology, combined with highly trained and experienced operators provides a safe working environment for all personnel involved in ground excavation. Mainstream says locating underground cables, gas pipes, copper pipes, communication and electrical cables prior to excavation provides its clients with peace of mind.

Mainstream adds the locating of underground utilities goes hand in hand with its industrial vacuum loading combination units.

A non-destructive, non-invasive solution Mainstream Industries offers the nondestructive, non-invasive process of hydro excavation, which uses pressurised water and vacuum to excavate soil. Unlike conventional excavation methods, hydro excavation mitigates damage to underground services such as fibreoptic, stormwater lines, electricity cables and sewer lines.

Mainstream’s large fleet of industrial vacuum loading and combination units ensure client timelines are maintained through efficient delivery of services.

Compared to traditional methods, hydro excavation is a safer, more cost-effective solution.

High-pressure water blasting In addition to its hydro and vacuum excavation capabilities, Mainstream Industries is also a specialist in high and ultra-high-pressure water jetting.

For high-pressure water jetting needs, the company has fully self-contained mobile units available in 4WD, capable of carrying up to 4,800 L of water and can be accompanied with registered standpipes issued by Hunter Water.

Mainstream’s experience in high-pressure water jetting allows for the safe and effective

VACUUM AND HYDRO EXCAVATION

Mainstream Industries prides itself on its commitment to fulfill each project safely and successfully. cleaning of infrastructure, plant and equipment.

Mainstream offer high-pressure water jetting from 4,000 PSI up to an impressive 36,250 PSI. Drain cleaning and CCTV inspection The business model designed by Mainstream Industries allows for an entire service from start to finish, including utility locating, hydro excavation, drain cleaning and CCTV inspection.

The use of the combination vacuum unit allows for a thorough clean, removing blockages and

debris, with all waste removed from site and transported to an approved waste facility.

Mainstream’s EPA transporter of waste licence ensures the tracking of waste is managed in accordance with EPA requirements.

Ensuring pipeline structures are sound is completed using the latest technology in CCTV inspection equipment. Mainstream’s use of the Kummert Profi 3 with the F-200 Crawler utilises WinCan software for digital video recording and enhanced still imaging to complete CCTV inspections and generate reports that provide a clear representation of a pipeline’s condition.

“Clients are given peace of mind with our 24-hour, seven days a week emergency service,” says Mainstream Industries.

A team you can trust Mainstream Industries prides itself on its commitment to fulfil each project safely and successfully by implementing several lines of communication to ensure it delivers what it

promised, on time and every time.

Mainstream’s award-winning management systems and training programs have seen the company expand its fleet and diversify across all areas of industrial cleaning services, resulting in numerous contract awards across the mining, power, civil and supportive industries.

“Providing our operators with an interactive integrated management system has given them ownership and the inclusiveness of being part of the team,” the company says. Mainstream adds its clients have also seen the benefits with access to the system and a comprehensive overview of day to day workings providing real time monitoring capabilities.

Mainstream Industries is evidently committed to providing excellence throughout all areas of the business. The commitment to continuous improvement, development and embracing technology is paramount to the company’s success.

For more information visit www.mainstreamindustries.com.au

Safe, Cost Effective Industrial Services Solutions.

Mainstream offer a comprehensive service from start to finish, from the locating of underground services to the cleaning and final digital CCTV inspection.

This process allows our clients piece of mind in knowing their project has been completed in a safe and professional manner with proven results.

24 hour contact number: 0423 338 872

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www.mainstreamindustries.com.au

14/8/20 11:39 am

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 41

RELINING

Winching to a win for top supply services Winch Hire Australia offers a variety of specialised winches available for the relining industry. Due to COVID-19, the Hire and Rental Industry Association Australia had to postpone its 2020 Company of the Year competition; however, Winch Hire Australia is set to return in 2021 as one of two finalists, nominated for its unmatched service offerings.

One of Winch Hire’s specialised winches inside the company’s busy facility.

RELINING

W

inch Hire Australia offers a variety of specialised diesel and electric winches for the pulling of all different sized pipes and liners. Its hiring services are available across the country with rentals also available for projects in nearby countries such as Papua New Guinea and Fiji.

The right products for the job Winch Hire Australia National Sales Manager Troy Moulder says the use of winches is mandatory for relining works as it would be impossible to complete projects safely and efficiently otherwise. Currently, the company’s most common winches used throughout the lining industry are the 3 t electric winches and the 4 t, 6 t and bigger 10 t diesel winches.

The use of winches is mandatory for relining works as it would be impossible to complete projects safely and efficiently otherwise.

Mr Moulder says Winch Hire Australia is always looking at ways to improve methods of hauling, with more products expected to be supplied in the future as they are developed and manufactured.

“We have invested more than 24 years in the industry, continuously improving our equipment to the latest technology,” he says.

In addition to supply services, Winch Hire Australia also provides its customers with onsite assessment and evaluation through reliable, direct communication with its experienced staff.

Building ‘go-to’ relationships Mr Moulder says over the past 13 years, Winch Hire Australia has worked closely with Interflow on a wide variety of projects, which has allowed a great relationship to develop between the two teams.

“One particular project comes to mind where we supplied our 4 t ZAD WINCH to assist Interflow with the relining of a series of pipes at Southport Spit, Queensland,” he says.

“You could say we are the ‘go-to’ company when they require hauling equipment. Matt Power, Branch Manager of Winch Hire Australia, has built a standing relationship with the team at Interflow over the years; understanding their projects and the types of equipment that they

A rear view of one of Winch Hire’s winches, which are available as diesel or electrical winches.

require to get the job done safely, efficiently and on time.”

Winch Hire Australia also supplies many other companies with lifting or hauling equipment, having been involved in many major projects including the Clem Jones Tunnel in its base city, Brisbane.

“There is no project too big or too small for Winch Hire Australia,” says Mr Moulder.

For more information visit www.winchhire.com.au

“Solutions Through Experience”

We have a wide range of winches and how they apply to pipe lining including:

• 4 Tonne ZAD Diesel Winch • 3 Tonne Air Winches • 6T, 8T & 10T Diesel Winches

Call today: 07 3376 2888 WINCHHIRE.COM.AU

35 BORON STREET, SUMNER PARK, BRISBANE QLD 4074

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14/8/20 2:16 pm

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 43

Where there’s a Wilmot there’s a way Wilmot Pipelining provides top quality pipeline rehabilitation solutions for infrastructure owners up and down Australia’s east coast. The company is one of the country’s foremost leaders in pipe relining with the ability to renew failing assets through various cured-in-place lining technologies.

44 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

A UV light train is inserted into one end of the pipeline and cures the liner as it passes through.

RELINING

The Wilmot Pipelining team out on site.

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ith decades of experience in Australia’s pipeline industry, Wilmot Pipelining has established itself as an extremely capable player in the sector through its strong performance record and reliability in the services it provides to clients. The team has consistently delivered large - scale pipeline rehabilitation projects around the country and has been a domestic pioneer in its championing of trenchless technology methods.

A large amount of Wilmot’s services are used to upgrade and repair vital municipal assets like water, energy, wastewater, industrial facilities and refineries, which are often situated in locations where creating minimal disturbance during works is essential. The Wilmot team has a strong background in pipeline construction and hydraulic services with this knowledge ensuring workers onsite are completely familiar with all necessary aspects of an asset and its workings.

CIP lining Wilmot is an industry leader in culvert and infrastructure rehabilitation and has a cured-inplace (CIP) lining solution for all applications, including wastewater, storm water, sewer, potable water, utilities and industrial refineries.

The company’s rehabilitation solutions are custom designed for specific pipeline and infrastructure projects, ensuring a client’s needs can be met regardless of how unique their asset may be.

Recently, Wilmot has made significant progress in CIP lining through its investment and development in UV cured CIP lining technology, used on all wastewater infrastructure. The UV liner has a high resistance to chemicals and abrasion due to

its ECR glass fibre properties, putting it at the top of the line for liners when it comes to structural capabilities.

The installation of the UV lining system is carried out with two points of access for the liner equipment, while the UV liner tube is constructed of fibreglass and polyester resin pre-impregnated in the factory, before being delivered to site where it is installed and cured

by UV light train technology.

Once the pipeline is cleared and CCTV is carried out, a winch is sent through the pipeline and attached to the new UV liner at a manhole access point. The liner is then pulled into place and end caps are installed at either end of the new liner before being inflated by compressed air and pushed out to the host pipe.

The UV light train is then inserted at one end of the pipeline and slowly dragged through with the UV lights curing the liner as the light train passes through the pipeline. The UV liner provides a fully structural CIP solution with increased flow rates and pipelines restored.

Wilmot also offers clients the use of a hot cure CIP lining technique through the installation of the hot cure inversion liner that can be carried out if only one point of access to the pipeline is available.

This liner is constructed with fibreglass or felt and impregnated with either epoxy resin or polyester before being cured by steam or hot water. Additionally, the hot cure inversion liner comes with a 50 year warranty and is applicable to all kinds of water assets.

Passion leading performance Wilmot uses point lining/patching and sealing methods for at source pipe repairs, being an

An ageing stormwater asset rehabilitated by Wilmot Pipelining through the use of UV CIP lining technology.

industry leader in this method for all wastewater applications. A major advantage demonstrated by this technique is the ability to repair and restore short sections of a pipeline at a localised point.

Wilmot is also an expert in lateral seal lining, effective in the relining of junctions and connections. Additionally, the company also offers restoration options to repair and rehabilitate pits, manholes and headwalls with high-strength repair mortar and coating applications.

The company’s strong passion for trenchless technology and consistent desire for optimum performance means Wilmot can remain at the forefront of the pipe rehabilitation industry, as it is always ready for new innovations and cutting-edge methodology.

For more information visit www.wilmotpipelining.com.au SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 45

RELINING

The RBM Plumbing and Drainage team installing a CIPP solution on an Australian project.

RBM brings leading CIPP technology down under LMK Technologies, a cutting-edge manufacturer with more than 20 years of experience in CIPP linings throughout the North American and European markets, has entered an exclusive licencing agreement with RBM to deliver its market leading products to the Australian market.

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stablished in 1984, RBM Plumbing & Drainage has grown into a leading provider of maintenance services for all facets of sewer rehabilitation across the country.

With a workforce comprising highly skilled and trained crews that can meet the needs of customers on time and on budget, RBM Construction Manager Michael Roberts says the company strives to continually improve its systems and work methods to ensure industry best practices.

“Our focus is to provide reliable and safe, cost-effective plumbing and excavations practices,” says Mr Roberts.

“With over 30 years in the industry, we take pride in constantly providing the highest quality

46 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

workmanship [and] finding solutions to difficult works that are beyond the experience of others.

RBM Plumbing & Drainage offers a seamless experience meeting expectation of clients of all calibres.”

CIPP lining technologies RBM has been completing rehabilitation projects for the past ten years and, following the recent agreement with LMK technologies, is pleased to now be able to offer market-leading WSAA and MRWA approved products to the Australian market.

Currently available is the LMK Lateral Pipe Cure-In-Place Pipe (CIPP) Relining Inversion Technology, including insignia gasket sealing

technology; LMK T-Liner Main to Lateral Relining System; and the LMK VAC-A-Tee Inspection Shaft System. The lateral pipe technology eliminates the need to access a downstream manhole, therefore limiting and even eliminating traffic management costs and inconvenience to water authority customers as multiple properties can remain undisturbed.

Mr Roberts says the liner can be stopped and started on a continuous line to keep junctions live, which also avoids the extra costs and time of reinstating junctions. Additionally, installing the additional Insignia Gasket Sealing Technology ensures a watertight seal that provides reliable, long-term resistance to root intrusions.

The LMK T-Liner main is used to fully restore

RELINING

the structural integrity of the host pipe with a full-circle, engineered main-to-lateral connection that also renews lateral pipes in one continuous length of up to 30 m without cold joints. The T-Liner is then impregnated with the resign system under controlled vacuum conditions and inverted through the lateral while the pipe cracks and voids are filled with resin migration, with curing accomplished within as little as 30 minutes with steam.

RBM also supplies LMK’s VAC-A-Tee, a trenchless outside inspection shaft system that allows access to the lateral pipe for cleaning, inspection and lateral lining. Mr Roberts says the vacuum excavation method eliminates potential hazards around utility lines and “minimises homeowner disruption, with no damage or restoration to landscape”.

Pending water authority approvals, RBM will also supply the Schwalm Plug System, which installs a mechanic plug in the lateral from the main line to leave the line clear for future rehabilitation works.

The RBM solution RBM has proven success using the exclusive LMK products on projects across Australia.

Mr Roberts says one client had a requirement to rehabilitate and replace three sewer branches in

Yarraville, each being 14 m long, 2.5 m deep and across a busy roadway.

The client’s estimation for completion was nine days; however, by using its exclusive LMK T-liner system, RBM was able to rehabilitate the line in a total of 18 hours, eliminating the need for council permits, substantial excavation, public inconvenience and the extensive costs of conventional rehabilitation.

On a separate project, a client needed to repair a failed 150mm diameter sewer that was 46 m long and had five house branches within 1 m of the existing properties, with this proximity a particular issue. Conventional rehabilitation would have caused major issues to the adjoining properties as well as taking an estimated eight days to complete.

Instead, RBM installed a performance liner for the 46 m reticulation line and rehabilitated the branches, completing the works within 48 hours with minimal disturbance to the adjoining houses and customers.

Mr Roberts says the RBM Solution is a “cost-effective solution in a sensitive environment resulting in a quality liner installed with many years of trouble-free life.”

RBM is delivering and installing LMK Technologies CIPP lining products to the Australian market.

For more information visit www.rbmdrainage.com.au

RBM Plumbing & Drainage Pty Ltd Our products •

LMK T-Liner

•

Schalm Robotic System

•

LMK Performance

•

Manhole Rehabilitation

Liner System

•

Hand Excavation &

•

Vac-A-Tee

Tunnelling Specialists

Winner of

2017 CCF

Earth Awards

Michael Roberts 03 9357 6069 admin@rbmdrainage.com.au

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www.rbmdrainage.com.au

13/8/20 11:44 am

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 47

RELINING

Aussie Trenchless products are consistently used across Australia, including the previously completed Ravenshoe Project.

Aussie Trenchless moves FNQ project forward Earlier this year, a large tender opened in Far North Queensland and, despite the many local contractors bidding for the win, a repeat customer of Aussie Trenchless is the one taking home the job – using Aussie Trenchless products to do so.

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s trenchless technology continues to make its mark as the preferred installation method for underground infrastructure, Aussie Trenchless remains at the forefront of the industry with innovative new products and technology.

Growing in popularity The company’s flagship product is a close fitting structural spiral ribbed PVC trenchless pipe lining system titled the SRP EXP. Used for circular sewer and storm gravity mains, the method continues to grow in popularity and will now be used on the recently-awarded FNQ project.

When the SRP EXP is installed, asset operators will extend the service life of a system by more than 50 years. Although designed to fit standard size access chambers, the product is also ideal for tight spaces or those with limited access.

Since the installation process is its unaffected by running infiltration and does not require bypass pumping, SRP EXP is well suited to water applications, particularly as it also enhances the hydraulic characteristics of the rehabilitated asset.

Aussie Trenchless Director Chris Meredith says he has seen significant growth in the 48 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

Major improvements were already evident in the middle of the Ravenshoe Project.

implementation of this trenchless solution both around the world and here in Australia, where it continues to be implemented in relining projects, including in its repeat customer Relining Solutions’ upcoming contract.

Customers keep coming back Relining Solutions is not the company’s only repeat customer, Mr Meredith says, with an

international customer based in Taiwan ordering more supplies to be delivered in September this year.

“In 2019, the customer purchased 50,000 linear metres and have since been installing that,” says Mr Meredith.

“They have now placed another order of 60,000 linear metres, which are being manufactured as we speak.”

RELINING

Mr Meredith says the customer is an active player in the Taiwan sewer industry has been for a substantial amount of time, often using Aussie Trenchless supplies for its projects.

Mr Meredith adds that this is an example of how customers are taking advantage of the product, with the company also receiving lots of market feedback indicating it is one of the most financially viable and efficient systems available.

“Like all efficient trenchless methods, the spiral lining system helps ensure the project’s aboveground footprint is minimised as much as possible, which includes the land and environment itself, as well as the day-to-day lives of the public in surrounding areas,” says Mr Meredith.

A successful range While the SRP EXP is at the forefront of Aussie Trenchless’ market offerings, the company’s Hot Sleeve Jacket is also popular due to its prompt resin curing times.

The Hot Sleeve is a tight-fitting heating jacket that is secured over a patch inflatable packer to reduce ambient cure period without any life reduction, saving operators up to 60 per cent in crew times.

Aussie Trenchless also offers the market

The Ravenshoe Project beginning to improve after showing severe signs of deterioration.

a man entry lining system using transparent polypropylene lining panels for the rehabilitation of gravity sewer mains, namely its Pipe Segment Technology (PST). PST is easy and fast to

implement with lining panels made of polypropylene material providing a smooth surface and excellent hydraulic performance characteristics.

About Aussie Trenchless Founded in 2014, Aussie Trenchless offers a range of unique products to the trenchless industry in Australia and internationally. In addition to SRP EXP and PST, it has the exclusive rights to distribute and sell HYDRAPULSE in Australia and New Zealand, as well as the HOT SLEEVE heating jacket for accelerated resin curing on patch lining and ‘T’ seal spot repairs.

For more information visit www.aussietrenchless.com

SRP EXP Spiral Lining System

Quick and easy to install

The perfect rehabilitation solution for deteriorated sewer and storm water pipelines:

SRP EXP • • • • • • • • • • • •

An expandable tight fitting liner No issues with high infiltration Negotiates displacements and slight bends Small site foot print Smooth to work with and install SRP EXP pipe is made from factory produced PVC profile strip Profile is supplied on large steel drums which are collapsible for easy reuse The minimal wastage is recyclable For DN150 to DN1200 pipe lines Mechanical installation – no chemical curing or steam heating Easily removed if site issues encountered Lead Free PVC formulation +61 418 691 989 6/58 Box Road, Taren Point NSW 2229 Australia enquiries@aussietrenchless.com

www.aussietrenchless.com

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 49

RELINING

A wide range of relining successes Rangedale continues to prove itself as an industry leader for drain, maintenance and rehabilitation across Victoria. With the company’s longstanding philosophy “keep it running”, Rangedale offers the expertise, capability, resources and scale to take on projects large and small – evident in its recent relining successes throughout the state.

Rangedale demonstrating its new UV lining capabilities.

RELINING

T

he trenchless technology expert has added new systems to its existing range of rehabilitation products and increased its relining capabilities, which now include ultraviolet (UV) lining, inversion, fibreglass patching and Smart Lock technologies.

Rangedale has exemplified its capabilities on a recent major infrastructure project utilising the use of high-definition CCTV, high-pressure water jetting, patching and UV lining over a two-month period to rehabilitate the damaged storm water assets.

Due to the heavy-traffic location, Rangedale was required to create a works methodology to offer a solution that avoided disruptive excavation work. First, Rangedale used its CCTV cameras to ascertain the asset’s condition and completed drain cleaning requirements to mitigate any sharp or other potential hazards that could damage the liner during installation.

By using its new state of the art relining system, Rangedale used UV light during the installation process to reduce curing time, increasing productivity and allowing a

cost-effective trenchless rehabilitation solution with minimal impact to key stakeholders and the community.

On another recent project, Rangedale continued to demonstrate its relining capabilities by completing a 100 linear metre UV reline on a DN 225 live sewer. Rangedale said concrete slurry from adjacent construction works infiltrated the sewer network then cured, causing a significant blockage issue.

The use of specialised robotics were then implemented by Rangedale for a duration of approximately two weeks to remove the concrete with cutting and grinding tooling.

Upon completion of the removal, Rangedale installed the liner to rehabilitate the damaged sewer.

The UV system consists of a flexible tube made of glass fibre that is impregnated with a reaction resin composition and then pulled into place in drains and expanded using air pressure before the curing process is completed. The finished product is a statically stable, seamless, flexible pipe.

Turnkey solutions Rangedale offers complete in-house, innovative turnkey solutions, providing the best rehabilitation technologies and methodologies while ensuring the asset owner and end user receive great value.

For these listed projects, Rangedale installed approximately 50 Smart Locks that were manufactured locally and specifically for the task, including sizes of DN 825, DN 1050, DN 1800 and DN 2250, demonstrating the company’s full service approach to its projects.

Rangedale’s relining methodologies can be employed for all pipe and sewer rehabilitation and are applicable to drainage materials such as concrete, steel, vitrified clay, fibre cement, glass reinforced plastic, un-plasticised polyvinyl chloride, high-density polyethylene and cast iron.

By using its new UV lining system in collaboration with existing rehabilitation solutions, Rangedale can reduce curing times and provide a cost-effective rehabilitation solution through an environmentally friendly process.

For more information visit www.rangedale.com.au

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 51

RELINING

MTS uses robotic crawlers to complete pipeline inspections.

Keeping trenchless in the family M. Tucker and Sons provides a range of expert trenchless solutions for a large suite of defects in sewer and stormwater assets available to organisations and councils all over Australia. The family business prioritises the use of the safe, environmentally friendly and innovative technology and has established a strong reputation for reliability and excellence.

M

. Tucker and Sons’ (MTS) trenchless capabilities span all the way from inspection right through to pipeline repair, with the company’s holistic approach to its work meaning each project is delivered with the utmost professionalism and quality, regardless of its size or prominence.

Relining and repairs MTS provides a wide variety of pipe lining services and always chooses the right method to seal a pipe completely and effectively, no matter the complexity of the task. The company’s relining capabilities range from 150 to 1,500 mm and it has adopted a cured-in-place system that is pulled into place via a cable winch and cured with UV lights once the liner is under the required pressure.

Each liner is designed to suit its individual customer requirement and MTS uses a highly engineered fibreglass liner. The liner is produced in accordance with monitored quality guidelines and is certified in accordance with ISO 9001:2008.

52 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

As a result of the environmentally friendly and energy-efficient production processes, the requirements of the energy management system in accordance with ISO 14001:2005 are met.

Liners can accommodate dimension changes; circular, oviform, box culvert profiles; and other custom applications as required, and MTS says the system is adaptable to almost any scenario with a low impact on the surrounding environment.

MTS’ robot milling equipment uses 240 V robotic crawlers with air operated cutting motors in pipe sizes ranging from 150 to 900 mm. This allows technicians to mill intrusions in pipes to prepare for repair or relining, or to reopen relined property connections ready for sealing with lateral sealing equipment.

The milling robots are designed to minimise the need for manned entry into the sewer to insert the robot. The milling robots can typically reopen a regular property connection in 20 minutes while cutting glass reinforced plastic (GRP) liners.

MTS also performs lateral connection sealing to rehabilitate sections of sewer mains, with or without mains relining. The company uses a TOP-HAT system that can also be used for selective or point repairs in the sewer main with UV GRP patches up to 500 mm long.

The rehabilitation method uses a remotecontrolled rehabilitation robot, which drives into the sewer system from an existing manhole. The packer fitted with the pre-impregnated material is positioned into place robotically and guided accurately into place via two CCTV cameras mounted to the system; one camera monitors the main and the second camera monitors the branch, making this by far the lowest risk system for failure of inflation or blockage of the branch.

Additionally, MTS says the TOP-HAT-system is the fastest and safest rehabilitation method in the world. A damaged spot or house junction can be repaired from the inside in 12–15 minutes with the process able to be completed in most live flows so plugging and bypass is not usually needed.

Specialising in 24/7 drainage maintenance and pipeline rehabilitation

Specialised Services •

CCTV inspection

•

Drain Cleaning / NDD and Vacuum Loading

•

Mainline UV Pipe Relining. 150mm to 1500mm

•

Lateral Reinstatement and robotic grinding

•

UV lateral sealing / Top hats.

•

Pipe patch repairs AMEX, Quicklock, Fibreglass and Smartlock.

Contact us today

www.mtuckerandsons.com 03 9736 3439

RELINING

Operations being conducted with environmentally friendly solutions to ensure minimal damage to the park and walking trail.

MTS is also a certified installation partner of Quick Lock Australia’s trenchless repair system – a German-engineered, compressionbased system manufactured from self-locking V4A stainless steel sleeves and seamless EDPM rubber gaskets. The system can repair many common defects found in pipes sized between DN 150 and DN 800 and requires minimal preparation, minimal labour and minimal risks.

Further capabilities MTS uses high-pressure water systems for effective and effortless removal of debris and roots inside sewer and stormwater drains of any size. It uses two Cappellotto CC drain cleaner/ non-destructive digging (NDD) units running on VOLVO FE320 cab chassis.

These units are current, high performance and reliable machines producing high efficiency services such as NDD, drain cleaning and vacuum loading. The Cappellotto unit will carry 5,000 L of jetting water and 6,000 L of debris, with a jetting pump capability 300 L/min at 2,500 PSI with 250 m of 1 inch (25 mm) sewer jetting hose.

The company has heavily invested in infrastructure to process accumulated drain cleaning debris that aids its environmental initiatives in reducing or diverting waste from landfill. MTS’ system is capable of separating up to 30 m3 of drain cleaning, NDD and drilling mud per hour and creates reusable sand and screenings to reintroduce back into the construction industry.

For more information visit www.mtuckerandsons.com 54 TRENCHLESS AUSTRALASIA

The MTS crew uses a range of trenchless machinery and equipment, including Cappellotto trucks.

No catch-22 with MCS on board In 2020, McRobert Contracting Services completed a challenging rehabilitation of 22 access chambers in Western Australia with Water Corporation. Using the latest technology and its industryleading expertise, MCS was able to deliver a strong result with a 50-year guarantee on all materials and workmanship used to carry out the works.

M

cRobert Contracting Services (MCS) is an Australian-owned and operated industry leader in the refurbishment of underground assets and polyvinyl chloride (PVC) pipeline technology. Operating out of Perth, WA, the company has been in operation for more than 30 years and has evolved into a business whose specialised services are sought out by both public and private sectors around the country.

MCS has worked on hundreds of projects across its lifetime and has developed a unique patented method for the structural relining of access chambers suffering from sulphide corrosion. The company’s strong relationships with a range of water operators across Australia are helping it achieve its vision of being the first choice for rehabilitation services, backed by its consistent ability to offer industry leading services and products to existing and future customers.

Doing what MCS does best On 12 June 2020, MCS – in association with the Water Corporation – completed a contract to rehabilitate 22 access chambers that were deemed to be of an extremely poor condition in Cottesloe, WA. Before the actual refurbishments began, MCS employed its

The access chamber rehabilitation project in progress.

TRENCHLESS AUSTRALASIA 55

RELINING

An aerial shot of an access chamber, in poor condition and in need of rehabilitation.

latest 3D scanning technology to assess the structural integrity of each access chamber and cross reference detailed measurements to determine the assets’ conditions.

These reports provided critical information for the method of rehabilitation MCS would use. The chambers were predicted to be challenging due to their high flows, silt/debris content, already fragile overall structure, advanced age and proximity to Cottesloe’s popular beach front.

After careful deliberation, it was decided to carefully jet-wash and e-duct approximately 5 m either side of each chamber to reduce the otherwise high cost to clean and e-duct kilometres of pipeline. This jet-washing/educting process was also able to assist in reducing the amount of silt and debris in each chamber.

Additionally, the jet-washing and e-ducting significantly lowered the flows along with the isolations provided by Water Corporation to a workable level. This decision, as well as having the capacity to work with the prefabricated channels, allowed MCS to specifically adapt and design a solution to allow for the successful and safe installation of channel and benching with the remaining refurbishment works to be completed prior to the allocated project schedule.

The specific scope of works for this 56 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

project comprised the design and development of structural rehabilitation for the current asset structure using approved remedial methods, including surface preparation for rehabilitation, channel and bench fabrications and the installation of the PVC lining system.

This also included the supply and installation of all required lining materials, supply and installation of PVC lined lids, reinstatement of property to previous conditions, spark testing completed to Water Corporation standards and the provision of quality assurance documentation.

Track record of success When faced with a relining project, MCS uses a minimum 10 mm rigid PVC sheeting, with the chamber walls prefabricated into sleeves that can be lowered into place directly onto the asset. MCS also prefabricates the PVC channel and benching components, which are then plastic welded into place in the chamber.

After installation, the preformed sleeves, channels and benching are secured to the original asset using a minimum 40 mm of high strength grout. MCS relines the access chambers from top to bottom including pipe

The final result of the rehabilitated access chamber.

connections, channel and benching resulting in a 100 per cent gas tight structural PVC lining.

This ensures complete protection of the asset from concrete deterioration.

Although MCS guarantees a period of 50 years for the plastic lining of utilities access chambers and sewer pumps, PVC linings should last significantly more than 100 years, provided no physical damage or prolonged exposure to UV occurs.

Continued excellence MCS has developed its relining methodologies to ensure it maintains a safe working environment while completing tasks in the most efficient manner possible. The company aims to spend as little time in the chamber as possible, equating to less time spent onsite and minimising extra costs that can accompany issues like traffic management.

Although based in WA, MCS has, and continues to, offer and complete its services around Australia. Along with access chamber refurbishments, these services include sewer pump station refurbishments, plastic fabrication, onsite fabrication, 3D laser scans, pressure jetting and CCTV inspections.

For more information visit www.mcrobertcontracting.com.au

Improve - Don’t Remove!

3D Laser Scanning and Asset Inspection • • • • •

3D scan of sewer asset Assess structural integrity of asset Determine amount of concrete deterioration Detailed interactive report with 3D modelling High definition video footage and photographs

Manhole Refurbishment • Structural rehabilitation of access chambers • Relining of pipe connections, channels, benching and walls with PVC for 100% gas tight lining • Stops further deterioration from gas attack • Patented technology • 50 year guarantee

Sewer Pump Station Refurbishment • Structural relining of sewer pump stations • PVC lining provides complete corrosion protection • Replacement of damaged pipework, mechanical components and lids • Patented technology • 50 year guarantee

MCROBERT CONTRACTING SERVICES P: 08 9411 0666 E: office.admin@mcrobert.com.au www.mcrobertcontracting.com.au

TUNNELLING AND MICROTUNNELLING

GM the go-to in WA GM Microtunnelling is at the forefront of trenchless technology through its expertise in sewerage, water and drainage works. With 40 years of experience in the industry, the company has established itself as one of Western Australia’s most knowledgeable underground infrastructure companies.

GM Microtunnelling’s boring machines and operators.

TUNNELLING AND MICROTUNNELLING

G

M Microtunnelling is part of WA’s history in the trenchless industry, with General Manager Gary Miller’s father Jim responsible for purchasing the first horizontal boring machine in the state. Gary and Jim recognised the increasing demand for this brand of underground construction and quickly established a name for themselves by winning contracts for various vital water and gas works.

The company adapted and progressed as the technology continued to improve through the decades and, although Jim eventually retired, GM continues as a family business today with Gary’s son and grandson both a part of the team.

Comprehensive knowledge As both a primary or subcontractor, GM has installed pipelines beneath buildings, highways, railroads, runaways, rivers and environmentally sensitive areas. The company is capable of tunnelling through hard rock up to 660 m OD as well as cobbles, boulders, gravel, clay, sand and silts up to 800 mm OD,

with its trenchless methods particularly suited to gravity sewer, water and drainage pipelines.

GM often works together with project engineers to provide planning and technical advice on a project and is able to set itself ahead of the pack thanks to its extensive knowledge of ground conditions throughout WA. Along with its local knowledge, the company has expert proficiency in the operation of a large variety of tunnelling machines including the Grundomat range and Essig air tools, along with auger, ramming, pipe bursting, pilot and slurry microtunnel boring machines (MTBMs).

With four complete systems in its fleet, GM can currently tunnel from 150 to 800 mm pipe to line and grade using polyvinyl chloride, concrete, vitrified clay, glass reinforced plastic and steel pipes. The company has its fingerprints over a large range of significant infrastructure projects in WA and is continuing to stay busy while the trenchless method of construction gains a greater standing as the approach of choice for many asset owners.

Some of GM’s works include the completed installation of a gravity sewer in Wungong Reach with a DN 650 Hobas pipe after a 1,200 m bore at a depth of 6.5 m. At Heron Park in Harrisdale, GM completed a 450 m bore at a depth of 9 m for a gravity sewer using DN 600 steel casing, while the company was able to bore 300 m at a depth of 5.5 m for a gravity sewer in Parkland Heights, Baldivis.

GM is a fully accredited contractor operating in line with integrated management system standards ISO9001 2015, ISO14001:2015, ISO45001:2018 and is an approved Tier 3 Water Corporation supplier.

Though it has already acquired a vast wealth of industry knowledge and experience, the company intends to lead the trenchless technology industry through its consistent embrace of new methods and innovative ideas.

GM is regularly participating in and encouraging the training of new personnel in the industry and places the upmost importance on its quality of service.

For more information visit www.gmmicrotunnelling.com.au

Leaders in slurry microtunnelling and civil works 40 years’ experience in horizontal boring

Contact Gary Miller for more information.

0400 567 814 or gary@gmmicrotunnelling.com.au GM Microtunnelling_TRN_Sept_2020_HP_AD.indd 1

13/8/20 1:41 pm

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 59

TUNNELLING AND MICROTUNNELLING

No other contractor wanted to take on the project in Donnybrook, VIC, due to its difficult ground conditions.

The edge over tough microtunnelling projects Edge Underground often takes on microtunnelling projects across the country that many other contractors would turn down due to the high risk or seeming impossibility. By creating achievable solutions for these projects, Edge Underground continues to philosophise that no job is too hard or impossible – even under the toughest conditions.

A

s the trenchless industry continues to expand across Australia, site conditions that make microtunnelling projects seem high risk or impossible are creating long-term limitations on the work available and, in turn, damaging the industry’s growth. Edge Underground Managing Director Stuart Harrison says at least half the projects the company undertakes are those no other contractor wants due to concerns over project success.

“Part of the reason that we take on these jobs is because we’ve got a belief in our own ability, and the equipment that we run,” says Mr Harrison.

“But also, we feel like it is somewhat of a responsibility to show people what is possible. At the end of the day if contractors keep turning around saying, ‘Oh no, there’s a problem, you need to dig this up’, or say straight 60 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

up that the project is going to be too difficult, we’re essentially cutting down the scope of our own industry.

“We certainly don’t look at it that way. We look at every job as being achievable, it’s just a matter of finding a way and a means to complete that job successfully and achieve that outcome.

We go out there with a good attitude and with state-of-the-art equipment and understand all the different aspects of a job and the complexities, and still find a way to get it done.”

Equipment is key In all microtunnelling projects – although especially in high risk conditions – having the right equipment is critical to success.

“One example of this was a project in Donnybrook, Victoria, which no other contractor wanted to take on due to the ground conditions (a combination of extreme hard rock with seams

of clay and fractures), which had a high risk of wedging occurring,” says Mr Harrison.

To counteract this problem, Edge Underground used the AXIS laser guided boring system, allowing the team to retract the drill head to complete a pilot line and inspect the ground to confirm conditions. In doing so, Edge Underground did not go into the project with incorrect or partial geotechnical information and, instead, could configure the reaming tool to best suit the pipe jacking conditions required.

Mr Harrison says this feature means if conditions do change again further down the installation, the drill head can be retracted and changed out to something more suitable so drilling can recommence from the same spot.

This capability is not found in other machines, which increases the project’s risk as it would require the drill head to be dug up from above, increasing time and costs.

TUNNELLING AND MICROTUNNELLING

Considering alternatives While factors such as the right microtunnelling equipment and dedication to finding a solution to a difficult project go a long way in successfully completing high risk jobs deemed impossible, sometimes microtunnelling is not the best option for the task at hand.

Mr Harrison says when this is the case, it is the duty of the contractor to let the project manager know.

“We do our best to try and speak to contractors or an engineer who’s designing a project about site-specific issues about what we can offer,” he says.

“We’re also happy to let them know that maybe what we’re offering isn’t the best solution on their job.”

Trenchless technology comprises a broad category of equipment and solutions and within the sector, any trenchless professional can discuss variations in technology that all present varying strengths and limitations. Edge Underground understands using the wrong tool in an application can result in a disappointing outcome, both financially and structurally.

“So wherever we can get more industry professionals assisting to get designs right,

The drill head of the AXIS can retract, allowing the contractor to do a pilot line and inspect the ground.

relative to the desired outcome, I think we help our industry grow, because people that we’re working with gain confidence that they’re going to prescribe something that will be successful,” says Mr Harrison.

“I think everyone in the industry has the burden to assist that process, and help clients come to some sort of a great outcome from our advice, from what we’re putting in.”

For more information visit www.edgeunderground.co

G U IDE D BORIN G S PE C IA L IS TS

WHERE ACCURACY MATTERS WHERE ACCURACY MATTERS

GUIDED BORING SPECIALISTS www.keyhole-pipeline.com.au

GUIDED BORING SPECIALISTS ABOUT US

Find out more about keyhole pipeline installation

OUR SERVICES

ABOUT US

Edge Underground is a precision microtunnelling • Microtunnelling contractor that operates in Australia and the USA. • Pipe Jacking With a focus on innovative technology and expertise, • Thrust Underground and enhances the EdgeEdge Underground is designs a precision microtunnelling contractor thatBoring operates in • Laser BoringEdge performance trenchless Australia and theof USA. With aequipment. focus on innovative technology andTunnel expertise,

Underground designs and enhances the performance of trenchless equipment.

OUR SERVICES • Microtunnelling • Pipe Jacking • Thrust Boring • Laser Tunnel Boring

( JAC 0458K000 ED 009 * stuart@edgeunderground.co 8 www.edgeunderground.co 0458 000 009 ( 1300 5 2 2 5 3 3 *

8

stuart@edgeunderground.co

www.edgeunderground.co

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 61

TUNNELLING AND MICROTUNNELLING

Bothar’s critical seaway project a success Bothar recently completed tunnelling for a project comprising the installation of 1,385 m of 2.5 m OD / 2.1 m ID reinforced jacking pipe. The project will increase the capacity of existing infrastructure on the Gold Coast used to discharge excess recycled water.

Birds eye view of Bothar’s work site on the seaway project for the City of Gold Coast.

62 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

TUNNELLING AND MICROTUNNELLING

O

ver the past 20 years, the Gold Coast has seen unprecedented growth causing its existing excess recycled water release infrastructure to approach its capacity and capability. Thanks to the work of the Bothar team, the city’s recycled water infrastructure is now future proofed for the expected population increase over the next two decades.

Project specification The installation of the new pipe was completed using a Herrenknecht AVN2000AB Tunnel Boring Machine (MTBM), with Bothar’s Project Manager Kieran O’Connor saying this could be the longest subsea microtunnelling drive completed in the southern hemisphere.

Bothar was also responsible for the temporary works design and construction of launch and retrieval shafts required for pipe jacking operations. The launch shaft at Quota Park in Biggera Waters was 26 m deep and 12.5 m diameter secant piled construction with the reception shaft – a 7.5 m diameter, 26 m deep pre-cast segmental sunk caisson – situated at South Stradbroke Island.

Mr O’Connor says Bothar was engaged to be the project’s specialist subcontractor on this critical seaway project.

First stages complete In May, Bothar’s first MTBM resurfaced from its 1,385 m subsea crossing underneath the Gold Coast Broadwater, signalling the completion of the project’s first stage of tunnelling. Over the coming months, an AVN1500 – the project’s second MTBM – will be used to tunnel between Quota Park and O’Connell Park.

Both MTBM’s were manufactured by Herrenknecht and have been sourced from Bothar’s extensive international fleet of Herrenknecht machines.

Risk mitigation technology Mr O’Connor says the decision to use microtunnelling was born out of a need for risk mitigation considering the inherent technical, safety, environmental and community risks associated with the complex and challenging tunnel.

“Microtunnelling provided the optimal balance of innovation and risk mitigation,” he said.

“The subsea crossing was constructed underneath the seabed of an environmentally protected area of Moreton Bay providing for its continuous use by the local community for boating, fishing and recreational activities.”

In addition to the challenging tunnelling task, the hurdle of COVID-19 also arose during

• • • • • • •

The project’s first MTBM ready for launch.

the project. To overcome social distancing restrictions and complete its essential project, Mr O’Connor says Bothar implemented strict protocols for its staff, including daily temperature testing and hygiene practices.

Bothar’s dedication to mitigating risks both to the environment and to its own workforce during the project demonstrates its commitment to finding a successful solution regardless of the challenges faced.

For more information visit www.botharboring.com

Microtunnelling Shaft Construction Tunnel Boring & Pipe Jacking Bothar Built Tunnelling Machines Auger Boring Horizontal Directional Drilling (HDD) Direct Pipe ® Installation

...Building the world beneath you...

WWW.BOTHARBORING.COM

(07) 3907 0777

INFO@BOTHARBORING.COM

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 63

TUNNELLING AND MICROTUNNELLING

The MTBM is lowered into the shaft.

Driving through dirt and rocks Rob Carr is continuing work on a critical sewer upgrade in Melbourne’s CBD as the surrounding city becomes Australia’s coronavirus hotspot. While the situation on Melbourne’s streets continues to evolve, below the surface Rob Carr grapples with its own challenges, using its microtunnelling expertise to overcome any obstacle.

T

he sewer network in Melbourne’s CBD is approximately 120 years old and is relied upon by a rapidly expanding population, with Melbourne’s entire population now closing in on 5 million. To ensure this vital network can cope with the needs of the reliant homes and businesses, City West Water (CWW) appointed civil construction and tunnelling expert Rob Carr – in association with design partner SMEC – to complete the Lonsdale Street Sewer Upgrade.

The project is the second stage of a four-stage strategy to install a secondary 900 m long sewer line under Lonsdale Street, with Rob Carr to deliver a DN 1400 glass fibre reinforced plastic (GRP) sewer line using a microtunnel boring machine (MTBM) for its construction.

After launching the MTBM from its 23 m deep launch shaft on William Street in early 2020, Rob Carr completed its first drive of approximately 550 m. The machine has now been turned around and commenced jacking on the second line, which is to be 350 m long.

Rob Carr is also simultaneously completing a new 23 m tunnel into Elizabeth Street using a hand jack, which will be tied into an existing manhole at that location.

Above the surface While the tunnelling operations continue to run 24 hours a day, six days per week below the surface, Melbourne’s above ground

64 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

The MTBM breaks through underneath Lonsdale Street.

situation continues to be impacted by the COVID-19 pandemic. After briefly easing restrictions, several virus outbreaks in Victoria have forced residents to return to strict lockdowns and once again increase prevention measures.

Rob Carr and CWW have been adhering to all coronavirus prevention guidelines onsite, allowing the project to continue running at full power. Border closures have forced some interstate workers to remain in Victoria, but Rob Carr Construction Manager Andrew Scarr says everyone involved has been able to deal with the changing conditions.

“It has an effect, but we have managed to work around any of those challenges,” he says.

“Later this year we hope to complete the line we are constructing at the moment, tie into the manhole on Spencer Street and complete the manhole at the launch shaft.

“The project has had its challenges, but we’ve continued to move forward and are steadily delivering these sewer upgrades.”

Rob Carr aims to complete its works later in 2020.

For more information visit www.robcarr.com.au

TUNNELLING AND MICROTUNNELLING

Keeping experts in-house UDS International is dedicated to the design and fabrication of special parts for the construction of underground infrastructure, specialising in producing and supplying products used for tunnelling, microtunnelling, horizontal directional drilling, pipe jacking and more.

F

ormed in September 2015 and based in Melbourne, UDS International now supplies its products and services around the world, with subsidiaries in New Zealand, South America and the Middle East. The company’s research and development of parts and equipment remains its primary focus with an in-house team at the top of its field.

UDS produces parts and equipment for a range of underground operations and purposes including drilling, tunnelling, fluids processing and control, tooling and excavation. The company’s research and development team is equipped with all the latest design software and testing facilities to ensure all equipment is modern and cutting edge, while all products are proudly Australian manufactured.

What sets UDS apart from competitors is its quality of staff, its team of technicans and engineers and the technical knowledge they bring to each product.

With such a wealth of knowledge and experience in-house, UDS can provide technical solutions that are tailor-made to every client’s unique requirements to ensure ultimate customer satisfaction. Clients receive continued technical support, parts repairs, project overview and recommendations with the purchase of every piece of equipment and UDS says it will always work with clients to improve and develop its current systems.

The company offers a wide range of products including desander and disilter cones for drilling rigs, as well as inline fluid monitoring systems and a vast array of sensor systems for

Designed by its in-house team, UDS’ desilter cone is ideal for drilling rigs.

density, viscosity, flow, temperature, pressure and chemical analysis. UDS supplies tunnelling lubrication valves along with injection and pumping systems, while its tunnelling cutting discs and cutting rollers with tungsten inserts have been expertly engineered to be effective against tough soil conditions.

UDS also manufactures hole openers, reamers, manifolds and pumping systems, pump

For more information visit www.udsinternational.com

For more information, call UDS on p: 03 8786 3278 e: info.mel@udsinternational.com UDS_TRN_Sept_2020_QP_AD.indd 1

66 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

consumables, liners, valves, pump pistons and many more products to satisfy industry needs.

Along with UDS’ large range of products, the company has more than a decade of research and development experience in the sector, allowing it to provide unique solutions based on client need, while its continued service long after purchase ensures customer peace of mind.

www.udsinternational.com 13/8/20 2:05 pm

INSPECTION AND CONDITION ASSESSMENT

Experience total asset management with UtilityTrack UtilityTrack is a cloud-based, GIS centric tool that focuses on the capture, organisation, presentation and analysis of stormwater and sewer network information. The system is an effective way to manage drainage data and ensure efficient management of all assets.

E

ach year, many organisations spend a significant amount of time, money and resources collecting information on their sewer and stormwater draining assets. Various stakeholders are the driving force behind this data collection effort, all presenting a range of aligned but varying needs.

“A good asset management tool is a critical aspect of ensuring information is conveyed clearly,” says UtilityTrack Manager Heath Keenan.

“Without one, stakeholders risk decreased productivity on site, double ups in works and increased unnecessary spending.”

It is for this reason that the new and cost-efficient UtilityTrack tool was designed and developed.

UtilityTrack The cloud based, GIS centric tool provides asset owners with an easy solution to collate and organise CCTV inspections along with asset data verification, asset location and connectivity.

The tool can hold a large library of condition data, with millions of known conduits and an ever-growing collection of survey condition data.

Additionally, specific details such as structural and service conditions of conduits and maintenance structures can be easily visualised.

Mr Keenan says CCTV data may be loaded in real time to UtilityTrack from field crews with access to internet or simply collated from historic archives.

“Survey condition data is linked directly to GIS data, thus UtilityTrack can be used as a searchable library of footage that can be accessed with ease – for example, simply clicking on a pipe can display any survey available for the asset along with a wide range of information about the asset and its end nodes,” says Mr Keenan.

“Data can be analysed to give statistics on the expected condition of an asset in a particular cohort (based on items such as size, depth, age and material). This can be drawn from to assist in planning and prioritising network data that requires improvement, and to fill in the gaps when fair valuation is conducted.”

CCTV taking place inside a pipe, where the data is then sent immediately to the UtilityTrack tool for processing.

Data management in real time As field crews can use the system to quickly and accurately verify and record attribute data, all subsequent changes to attributes, connectivity, location and relevant photos or video footage are available to the asset owner in real time. This provides an unprecedented audit trail and allows field crews to be coordinated, monitored and supervised with extreme ease.

Mr Keenan says this centralisation of drainage data collection allows for extra value to be realised.

“A structural inspection preformed due to a resident complaint can now be added to the valuation model,” he says.

“A planner examining a subdivision request can instantly recall surveys taken during routine inspections. When planning a road re-sheet, an engineer may examine data taken for a previous valuation project.

“Inspection data from a developer handing over a subdivision can be linked and provide a baseline for the asset, along with making checking the asset for warranty claims a simple process.”

Mr Keenan says the UtilityTrack system is also a great way to track degradation and an

asset’s history as the current condition can be compared to accounting models and other similar assets.

Sharing and exporting options Sharing data is easy using the UtilityTrack system as information on a single asset or select group of assets can be readily sent to a colleague, contractor or stakeholder – making the task of getting remediation work quoted or having someone else review an asset very quick and simple.

With many export options available allowing the easy exchange of data to any corporate system, UtilityTrack provides modules that may be easily linked to current systems with no modifications to said system, existing local data or processes.

“If you manage a stormwater or sewer network, it is well worth checking out how UtilityTrack can assist in your day to day workflows and extract the most out of your current and future data,” says Mr Keenan.

For more information visit www.totaldraincleaning.com.au SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 67

INSPECTION AND CONDITION ASSESSMENT

SECA keeps the job moving As one of Australia’s leading equipment suppliers for sewer and plumping equipment, SECA is committed to providing quality parts and service, backed up by years of experience. A top distributor throughout the Australasian region of international CCTV brand iPEK, SECA promises to deliver a solution that gets workers back on the job as soon as possible.

SECA supplies iPEK’s leading ROVION Tractor Inspection System.

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INSPECTION AND CONDITION ASSESSMENT

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ore than 30 years ago, iPEK developed its first black and white camera system for CCTV inspections in Germany. Since then, the company has grown to become a leading global provider of a wide product range, comprising sophisticated and high-quality pipeline inspection systems.

In Australia and New Zealand, these products are available from one of the world’s leading pipe inspection system suppliers, SECA. With more than three decades of experience supplying and supporting the region, SECA is equipped with the skills, knowledge and experience to keep any job moving. iPEK pipe inspection cameras SECA supplies a wide range of pipe inspection products and two of its leading systems are iPEK’s AGILIOS Push Camera System and ROVION Tractor Inspection System, which are both built for professional pipe inspections.

The AGILIOS system comprises a coiler with a reinforced and flexible push rod that comes in two lengths, 60 m and 100 m, an easy to use control panel with an axial camera and pan and title camera available. The AGILIOS system is suitable for inspections starting at 50 mm diameter and upwards.

Both the AGILIOS and ROVION systems can be controlled by the same multi-functional VC500 control panel, allowing inspections to be carried out according to predefined standards, including those of Water Services Australia (WSA) and the New Zealand Pipe Inspection Manual (NZPIM). With self-explanatory handling, an ergonomic design and robust construction, both systems ensures utmost efficiency for asset inspections. Currently, there are more than 700 iPEK systems in operation across Australia and NZ, inspecting small pipes and large pipes alike.

Equally popular is the iPEK ROVION Tractor Inspection System – known as the single system with all the options.

The system includes a high-resolution zoom camera suitable for pipes from 95 mm to 2,000 mm and has a flexible cable length of 200 m to 500 m. Along with its modular design allowing for future growth and expansion, the system offers multiple configurations to suit any operational needs.

The ROVION and AGILIOS are perfect for any sewer, stormwater, civil and local government inspections. With the optional embedded WinCan reporting software, reports are created to WSA and NZPIM standards and seamlessly work with WinCan VX reporting software.

The iPEK AGILIOS Pan Tilt Push Camera System is one of SECA’s most sought after products.

Since its founding in 2014, Auckland-based CCTV inspection company PipeVision has been using cameras from SECA. Managing Director Peter Knight says the AGILIOS and ROVION cameras are greatly beneficial with many standout features.

“Being able to use the same controller for both systems is a great advantage and it’s easier to train and maintain the equipment,” says Mr Knight.

“Ease of upload to the cloud for both systems [is beneficial] also.”

With 14 ROVION cameras in use and six AGILIOS push cameras being used daily, Mr Knight says PipeVision is able to upload all footage directly to WinCan Web and deliver it straight to its clients, creating a seamless process.

SECA’s full support SECA says all the products it supplies are fully supported by its in-house factory trained technicians, now working across Sydney, Melbourne and Brisbane. Specialised jetting

trailer and truck services are available in Sydney only, including performance testing for flow rate diagnostics and nozzle size testing to improve performance and reduce costs.

Mr Knight attests to this full support service, saying SECA provides “excellent support and have always helped us when we need it so I would have no hesitation in recommending them and the systems to anyone.”

Versatility and consistency In addition to its iPEK range and support, SECA says it also holds stock and parts of a wide range of other global, leading brands.

Currently, the company also supplies Quickview, Envirosight, Kepso, Dancutter, Cherne, Piranha Hose, ENZ Nozzles, Rioned, US Jetting, RootX, Southland tools and WinCan and are also agents for local brands Mass Products and Jetwave.

SECA says with its numerous service and support team members across five locations across Australia and NZ, it has grown to be the largest, most qualified service team throughout the region.

For more information visit www.seca.com.au SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 69

INSPECTION AND CONDITION ASSESSMENT

Figure 1. Sewer CCTV video screenshot featuring VAPAR’s auto-coding system © VAPAR.

Veolia partners with VAPAR for CCTV defect recognition solution Authored by the following staff from Veolia: Quentin Bechet, Project Manager – Water (VIC); Melissa Mellado-Ruiz, BD Manager – Water; Xavier Philoleau, Data Scientist – Water (VIC); Vincent Barbosa Vaz, Data Scientist – Water (VIC); Jean-Michel Seillier, General Manager – Water (VIC & TAS); Ziad Bushnaq, Market Development Manager – Water Network Services (VIC)

Following a trial assessment of its software and algorithms, Veolia has launched a partnership with VAPAR to build a range of solutions to support councils and water utilities with a goal of maximising the return on their investments in sewer and stormwater assets.

I

nspection and condition assessments of network infrastructure are critical for water utilities and city councils to ensure structural integrity and functionality of sewer pipes and stormwater drains. These assessments are necessary to identify the pipes requiring rehabilitation before they deteriorate past the point of renewal.

For this reason, water utilities and city councils across Australia spend millions of dollars every year to maintain their sewer and stormwater assets. The traditional CCTV assessment methodology of network assets presents challenges for utilities and operators, such as:

•

the time required to visually review CCTV inspection videos and identify defects.

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• •

the operator experience and subjectivity. the tracking, geo-locating and organising large amounts of CCTV data.

In this context, VAPAR CEO Amanda Siqueira and CTO Michelle Aguilar founded the company in 2018 to provide smart solutions that automate the condition assessment of network assets. Ms Siqueira and Ms Aguilar developed an algorithm able to auto-code CCTV videos using artificial intelligence (Figure 1).

“The technology provides an accurate, cost effective and quick alternative to laborious video inspections I worked with during my intern days,” says Ms Siqueira.

Veolia, as a long-term provider of network services for municipal water entities, is always looking for innovative digital technologies that

can improve quality of service while reducing labour-intensive tasks. A partnership with VAPAR was therefore the logical step to address the challenges operators face every day.

“Fully committed to digital transformation, Veolia is always looking at different ways of using data to improve outcomes for both our clients and Veolia’s operations,” says Veolia General Manager Water Victoria Jean-Michel Seillier.

This led Veolia to conduct a trial in Victoria in February 2020 to assess the accuracy of VAPAR software and provide a market-leading case study for the application of AI technology to pipeline inspections.

The trial’s positive results point to exciting developments for Veolia, VAPAR and Australian water utilities and councils.

INSPECTION AND CONDITION ASSESSMENT

RECALL

PRECISION

Figure 2. Recall (missed defects) and precision (false alarms) for each category, comparing VAPAR and the operator.

The trial This trial was based on 198 videos, representing 3.6 km of pipes selected from various inspection campaigns performed by Veolia Network Services (VNS) in Victoria, and covering a wide range of diameters and materials. The condition of these pipes had been assessed by operators during these campaigns.

In parallel, VAPAR used its algorithm to detect defects from all selected videos. Two assessments were subsequently available for the same video: the ‘Operator Assessment’ and the ‘VAPAR Analysis’. Veolia then mandated an independent seasoned expert to carefully review these 198 videos to provide a ‘Reference’, used as a source of truth.

The Operator Assessment and the VAPAR

Analysis were then compared to the Reference.

To facilitate this comparison, the various defect types were classified across six categories: cracks; roots; obstructions; joint defects; connection defects; and other. The performance of the assessments was then estimated for each of these categories.

The following two indicators were calculated to assess the performance of both the Operator Assessment and the VAPAR analysis against the ‘Reference’:

•

Precision: the precision is an indicator of the number of ‘false alarms’. For example, a precision of 80 per cent means that 20 per cent of defects listed in an assessment are actually not defects (i.e. false alarms).

•

Recall: the recall is an indicator of the number of missed defects. A recall of 70 per cent for example means that 30 per cent of the actual defects were missed in the assessment.

Results The outcome of this analysis revealed the VAPAR algorithm performs relatively well, missing only 13 per cent of the defects, compared to 37 per cent for the Operator. This is mostly explained by the capacity of the VAPAR algorithm to detect micro-defects that are typically not reported by busy operators.

The algorithm was found particularly performant at identifying roots, cracks and joint displacements. As shown in Figure 2, the VAPAR algorithm is particularly oversensitive on displaced joints: approximately 50 per cent of the defects reported by VAPAR were not clearly visible in the video frames.

What is particularly important in condition assessment of network assets are the service and structural grades of the pipes. These grades, between 1 (good conditions) and 5 (critical conditions), are typically used by water utilities and city councils to direct maintenance and rehabilitation programs.

The most valuable result of this trial was that

We help you manage every step of the water cycle.

Compliant and innovative water management and network solutions.

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NETWORK MAINTENANCE

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veolia.com/anz

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 71

INSPECTION AND CONDITION ASSESSMENT

the VAPAR algorithm significantly improves the accuracy of the grading. Indeed, Figure 3 shows that VAPAR assessment for structural grades is correct for 80 per cent of the pipes, compared to only 48 per cent for the Operator Assessment.

Similar results were obtained for the service grades, with 76 per cent of correct assessment in VAPAR analysis against only 52 per cent in the Operator Assessment. This improved accuracy will allow for optimisation of the maintenance and rehabilitation programs of network assets.

In the search for innovative technical solutions that can contribute to improving operational performance, Veolia was pleased to perform this successful trial with VAPAR. The VAPAR algorithm was found to improve the existing methodology to assess the condition of sewer pipes and stormwater drains.

In particular, the capacity of detecting microdefects can significantly refine the condition assessment of these critical network assets.

Despite a slight over-sensitivity, this trial demonstrated the VAPAR algorithm is more accurate than operators to grade network assets.

As the structural and service grades

Figure 3. Overall comparison of VAPAR and the Operator for defects detection, pipeline structural grades and service grades.

are typically the metrics used to direct the maintenance and rehabilitation programs in water utilities and city councils, this improved assessment can help better optimise the investment in this critical public infrastructure.

For more information visit www.veolia.com/anz/

72 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

For this reason, Veolia launched a partnership with VAPAR and is currently building a range of offers to support councils and water utilities to maximise the return on their investments in sewer and stormwater assets.

DRILLING FLUIDS AND EQUIPMENT

VSA strides ahead with Vermeer As an innovative trenchless technology contractor, Versatile Services Australia endeavours to use industry-leading tools and equipment to complete its projects – which is why the company works with industry pioneer Vermeer and its broad range of technologies for underground service installations.

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ersatile Services Australia (VSA) Director Aaron Forbes says the company started in early 2018 with the aim of filling a need for a modern underground utility specialist focused on smaller and more technically challenging projects.

“Two years later, we have a staff of 12 and have expanded beyond our Perth base into the Sydney market, with NBN installation and maintenance being an important part of our work.”

A long-term relationship When asked what the relationship with Vermeer Australia means to VSA, Mr Forbes says Vermeer has all the right sales and support values to work with Australian contractors, whether large or small. This capability has been further extended with Vermeer becoming fully owned by RDO Australia Group, one of the largest specialist equipment dealer organisations in the world.

Mr Forbes himself has been in the industry for 20 years, starting as an offsider before moving upwards through being a plant operator, site manager, construction manager and finally becoming director of the horizontal directional drilling (HDD) company VSA. “I was trained on a Vermeer 7x11A and 16x20 15 years ago, and I’ve worked with Vermeer ever since as I had great experiences with the company early on,” says Mr Forbes.

“As I moved into management roles, I got to appreciate more about the team that supports Vermeer equipment, so it’s a combination of the equipment itself and the company that supports it.”

“Consistently outstanding” Mr Forbes says VSA uses its reliable Vermeer D24x40 for ongoing work but needed a bigger machine for a Sydney project that comprised hard work and limestone – choosing a D40x55DR to tackle the job.

“The results have been consistently outstanding,” says Mr Forbes.

“We often rack out the drill in solid rock without complications, racking out up to 250 m a day, many a times in complete rock conditions.

Our operators love how easily it handles difficult conditions, particularly the D40x55DR’s

VSA operators are happy with how easily the Vermeer D40x55DR can handle challenging conditions.

VSA crew with their Vermeer D40x55DR, used on a Sydney job with difficult terrain.

Trenchless technology contractor VSA says it will continue to expand its range of Vermeer equipment.

automated system has made life getting through the sandstone on the Sydney job a breeze – its reliability and strength in the inner rod system is incomparable to any other drill manufacture.”

drills and other machinery on an ongoing basis.

“With the high volume of work we are seeing begin to appear in WA, our next step for this goal would be to attain some more heavy duty Vermeer drills to match our Sydney capacity,” he says.

“We’ve enjoyed good support from Vermeer, whether in Perth or in Sydney. As someone who has worked in all ranks within the drilling industry, I can confidently recommend Vermeer to any and all users.”

More to come VSA is currently focusing on tightening its internal gears so the company can expand outward in terms of both increasing manpower and machinery. In particular, Mr Forbes says, VSA plans on expanding its network of Vermeer

For more information visit www.vermeeraustralia.com.au SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 73

DRILLING FLUIDS AND EQUIPMENT

Longstanding trenchless relationship continues Leading no-dig contractor R&R McClure has extended one of the industry’s most productive relationships through the addition of a second GRUNDODRILL 28N+ to its already impressive fleet of TRACTO-TECHNIK machines. For more than a decade, the contractor has relied on the German manufacturer for its high-quality and innovative products and support.

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he partnership stretches back more than 10 years to January 2010 when R&R McClure first purchased a GRUNDODRILL 4X. The company has since assembled one of Australia’s largest collections of TRACTO-TECHNIK machines, including R&R McClure’s first GRUNDODRILL 28N+ in 2018.

When purchasing the new drill, R&R McClure Director Tim McClure says the company’s knowledge of TRACTO-TECHNIK’s products, their performance, durability and quality, as well as the company’s industry leading sales and service support, meant extending the relationship was the right choice.

“We have previously used a number of machines in TRACTO-TECHNIK’s range and we are extremely happy with the equipment and the digital technology they use for drilling and servicing,” says Mr McClure.

“We can always rely on our GRUNDODRILL rigs and on TRACTO-TECHNIK. This goes for their efficient and effective machine technology, as well as for the fantastic support provided by the staff in Brisbane and Germany.”

GRUNDODRILL 28N+ The GRUNDODRILL 28N+ is one of TRACTO-TECHNIK’s most popular and best performing fluid-assisted horizontal directional drilling (HDD) rigs. The compact 7.5 m machine achieves peak results in every discipline through its powerful drive and best-in-class values.

Mr McClure says the 28N+ is highly effective when completing long length bores.

“It is very quiet, smooth to operate and has plenty of power,” he says.

The vehicle’s existing drive power is 224 kW from a Tier 5 Cummins engine, which is 100 per cent converted into drilling power with up to 300 kN pulling force. The GRUNDODRILL is also fitted with a 650 L bentonite pump allowing for maximum productivity and fast drilling progress, even with large upsizing diameters.

“We purchased a second drill to allow better efficiency on long projects and provide availability

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The GRUNDODRILL 28N+ in action on a recent HDD project.

The GRUNDODRILL 28N+ is the newest addition to R&R McClure’s growing fleet of TRACTO-TECHNIK machinery.

DRILLING FLUIDS AND EQUIPMENT

With its slim design and minimal distance from drilling axis to the outer edge of the machine, the drill has the largest rod magazine in its performance class with 288 m of usable drill rods onboard. It also has 11,000 Nm of rotational torque with thrust and a pullback of 280 kN. As it is fully automatic and has a particularly ergonomic design for the reloading of drill rods, no machine operator is required within the cabin and it offers the ability to log bore data and complete data transfer tasks with ease.

The GRUNDODRILL 28N+ can work in all ground conditions, including hard rock terrain.

where tight time frames are required,” says Mr McClure, adding that parts of the machine such as rods and drill bits can be shared and interact with the many other TRACTO-TECHNIK machines already present in its fleet.

A proven track record Mr McClure says the GRUNDODRILL 28N+ machines have both been used on an underground power project that is part of the bushfire prevention plan, as well as on water main works and private trade projects.

“The GRUNDODRILL 28N has a vast range of unique features that we were looking for and these will assist in the future as we continue to develop our business.”

In particular, the 288 m on-board rod length stands out as it allows R&R McClure to achieve these longer drill lengths without having to change its whole rod basket as it would with other machinery.

Notably, the high-quality machinery allowed R&R McClure to achieve single bore lengths

of more than 250 m, which also reduced the quantity of bore start and end holes.

“We were also able to achieve an efficiency that could meet project timelines,” says Mr McClure.

When looking at future projects, Mr McClure says the company will mostly be using its 28N+ machines on “work that requires long bore lengths in all ground conditions that require a trenchless solution”.

Personal support To ensure its customers get the most out of their machinery purchases, TRACTO-TECHNIK offers continuous training on service and maintenance of its systems and guarantees comprehensive and rapid repairs. For personal requirements, TRACTO-TECHNIK says it can train its customers according to individual requirements.

Mr McClure can attest to this, saying R&R McClure is always extremely happy with the service and communication it receives from the team at TRACTO-TECHNIK Australia, and has been for the entirety of its longstanding relationship.

For more information visit www.tracto-technik.com.au

Adept Civil Group specialise in Laser Guided Tunnel Boring.

Bores that require accurate grades or through difficult ground.

When accuracy and reliability are important contact Adept Civil Group.

Telephone: (03) 9863 9530 Mobile: 0416087254 Email:info@adeptcivilgroup.com quentin@adeptcivilgroup.com www.adeptcivilgroup.com.au

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 75

www.adeptcivilgroup.com.au

DRILLING FLUIDS AND EQUIPMENT

An Australian HDD success story Over the past seven years, Maxibor has applied a strategy that has seen it become one of Australia’s leading HDD design and construction providers. Its proven experience and cooperative knowledge sharing approach is winning many friends across the infrastructure and mining sectors.

T

he success of Maxibor has been underpinned by building relationships, gaining respect and providing responses.

The company sees its cooperative approach as the right model for others to follow, especially in these challenging economic, environmental and social times, saying knowledge sharing is vital to such an approach.

“It is something that has held societies together for untold generations – and it is even more important in these difficult and changing times,” says Maxibor Owner and CEO Rodney O’Meley.

The knowledge sharing concept is embodied in the logo of Indigenous business Native Earthworks, which is one of several Indigenous businesses Maxibor is assisting to better participate in the civil construction sector.

“The symbol of two people sitting together to share knowledge has its origins from societies 12,000 years ago,” says Native Earthworks Owner and proud Torres Strait Islander Chris Young.

“I really like the Maxibor culture of sharing knowledge and cooperating with all stakeholders across the project delivery process. It is certainly helping to make a difference for Native Earthworks.”

In the specialised area of horizontal directional drilling (HDD), it is unlikely the entirety of HDD knowledge will be within asset owners, design engineers or Tier 1 contractors.

“Maxibor is living and breathing HDD at a design, estimation and delivery level each day,” says Mr O’Meley.

“We are more than happy to readily share that knowledge at the right stage of a project so that the best decisions can be made at a concept, design and delivery level for the benefit of all.

“The benefit of Maxibor’s HDD knowledge and, just as importantly, the willingness to share that knowledge, is able to add value at the design, bid and delivery stages of clients’ projects.”

HDD Engineering Special Projects Director Stephen Longeragan is also a strong advocate of HDD being able to solve complex infrastructure project challenges.

“The Maxibor approach is something which the HDD industry needs more of,” he says.

“There are so many benefits to be realised

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Guy Angus and James Hand developing design and drilling methodology for another HDD project at Maxibor’s new offices at Beresfield, NSW.

The Maxibor team busy onsite at the record-breaking HDD project in Logan, Queensland.

if we all get together early on complex projects to share our HDD knowledge. This will get the right design and therefore provide the optimised delivered outcome.”

Maxibor Senior Project Manager Guy Angus says, “Maxibor’s access to the full suite of HDD knowledge and our cooperative approach in the bid process is helping more and more principal contractor clients to be best positioned in the bid process.”

“They are not only getting a fair and reasonable quoted price but a well thought out

design and drilling methodology which fully addresses time, quality, safety, environmental and heritage issues.”

Building relationships Another key driver in Maxibor’s approach is the creation of strategic relationships across the various infrastructure sectors. This requires developing relationships, respect and response at all levels including asset owners, Tier 1s, major contractors, engineering design, suppliers and industry bodies.

DRILLING FLUIDS AND EQUIPMENT

Matt Watkins, who has worked on many Tier 1 bids from inside and now consults to the infrastructure sector through Pioneering Consultancy on business strategy, business development and strategic procurement, says “those contractors like Maxibor that are well connected across the whole delivery chain and with wider industry professionals will benefit substantially from that level and style of engagement”.

With bases now established in Queensland, New South Wales and Victoria, Maxibor can mobilise to anywhere in Australia. Its fleet of 12 rigs, including maxi-rigs, mid-rigs, rock drills and other medium drills, means there is no HDD project that Maxibor can’t complete.

Maxibor’s cooperative approach has also seen it develop a close business relationship with HDD provider CT Civil. Based in Victoria and with project experience in NSW and Tasmania, CT Civil’s fleet of three drills includes a Ditch Witch AT40, which is ideal for high strength rock.

“Cooperation with Maxibor is enabling a smaller HDD company like ours to quickly move to another level – the amount of knowledge inside of Maxibor and its well-established network of connections is just amazing,” says CT Civil Managing Director Cam Stevens.

“Our three Ditch Witches and Maxibor’s Vermeer 330x500 and American Auger 660 maxi-rigs plus its two Vermeer 100x120 mid-rigs and five other medium rigs provide a formidable combination with which to provide HDD services in the southern regions of Australia and elsewhere.

“I like what Maxibor is doing on social procurement, especially through the collaborative Indigenous business model. CT Civil was proud to be part of helping Native Earthworks get its website off the ground and is looking forward to utilising their drainage and other civil expertise on the delivery of future infrastructure projects.”

Maxibor National Business Development

The Native Earthworks’ logo shows two people sitting together to share knowledge.

Manager David Turner says it is important for Maxibor to get the message out there about its knowledge sharing and cooperative approach.

“Being a regular contributor Trenchless Australasia and its sister publication The Australian Pipeliner is all part of that process,” he says.

“The Australasian Trenchless Directory 2020 recently released by the ASTT is an ideal source of information for those involved in the infrastructure sector – it is the who’s who of infrastructure asset owners and suppliers (with Maxibor proudly highlighted on pages 96-97).”

For more information on Maxibor contact David Turner on 0499 375 511 or visit www.maxibor.com.au

02 4966 5583 www.maxibor.com.au admin@maxibor.com.au Follow us on LinkedIn, Facebook & Twitter

» Quality and collaborative HDD design and construct services » Expertise to advise at the right time in the project delivery cycle » Gas, water and sewer, rail, road, power, telecommunications, mining, residential development and renewables » Maxi-rigs capable of long and wide diameter bores in hard rock and difficult conditions » Build a future we all look forward to.

AUSTRALIA’S LEADING HDD SPECIALIST Maxibor is using its network of experience to deliver better project outcomes to asset owners and principal contractors alike

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 77

DRILLING FLUIDS AND EQUIPMENT

COE Drilling Operations Manager David Newitt says when onsite, the company has the support of NOV and their personnel, who know the equipment.

A leading BRANDT for HDD solutions With more than 50 years of experience in manufacturing equipment and 15 years of supplying HDD equipment throughout the oil and gas industry, NOV is expanding its industrial segment – BRANDT Industrial – to Australian contractors.

A

s market leaders in oil and gas, National Oilwell Varco (NOV) has been manufacturing shakers and centrifuges, its flagship products, for more than five decades – longer than many companies have even been in operation.

With 70 per cent worldwide offshore market share in conventional oil and gas field supplies, NOV Regional Sales Manager for the Far East Alec Cochrane says its equipment and services easily translate to the horizontal directional drilling (HDD) and microtunnelling industry and has for some time.

Intersected technologies “We’ve actually always been involved in the HDD industry, more so in Europe,” says Mr Cochrane.

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“For the past 15 years, we’ve been involved in supplying equipment mainly to rig builders like Herrenknecht, and also offering our equipment as a complete service by renting our equipment and supplying operating personnel.”

NOV’s experience in the oil and gas sectors carries through to the trenchless industry and Mr Cochrane says the equipment, technology and methodology are often intertwined.

“Equipment we provide to oil and gas can be transferred into HDD and is a really good fit because the HDD companies face the same challenges that the oil and gas companies face, just in a different environment.

“Instead of being offshore, you are onshore somewhere and, sometimes, it can be really remote. So, it’s very important that the equipment is reliable and that it

doesn’t break down, which can cause financial penalties to our customers.”

BRANDT™ NOV’s industrial segment, BRANDT Industrial Technologies, focuses on the equipment trenchless companies need to separate drilling solids by designing, manufacturing and selling its renowned BRANDT solids control and waste management products and services.

Mr Cochrane says the company is an enabler of technologies for the industry by offering high performance equipment to save operators time and money, improve overall drilling performance and lower its customers’ bottom lines by efficiently separating solids.

“By focusing on the performance of the

Quality is at our core For more than 50 years, NOV has been providing reliable and trustworthy products, with industry best performance, results and service.

SABRE Shaker System

The first of its kind, SABRE™ is a modular shaker system based on a scalable platform that can easily be changed from a single-deck shaker to a doubledeck shaker and from a double-deck shaker to a triple-deck shaker. This simple upgrade can be made in the field, eliminating the need to change out the complete system and enabling the BRANDT™ SABRE shaker to be easily adapted to your needs.

Solids Control Services: •

Equipment sales, rental and service design and construction on new build and refurbishment projects

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Evaluation focused on improving process efficiency

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Inspection, maintenance and repair of customer owned equipment and systems

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Well-specific solids control system efficiency maximisation evaluation and recommendations

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24-hour, onsite service

•

Monitoring and maintenance, including on-site inventory management

•

Onsite consigned inventory management program

Contact:Richard Manning Country Manager

Tel: 0456 456 282 www.nov.com/about/our-business-units/wellsite-services

DRILLING FLUIDS AND EQUIPMENT

COE Drilling continues to operate a wide range of machinery and equipment, manufactured and supplied by NOV.

equipment and getting the best out of the equipment from the design, [our equipment] can process more fluid volume and we can process it more efficiently, which means we can save the customers money on their fluid and waste disposal bill,” says Mr Cochrane.

“We are trying to reduce the amount of waste generated and reduce the amount of fluid wasted by helping reclaim drilling fluids for re-use.”

The company manufactures and supplies high performance equipment that can process faster, more efficiently and down to a much finer spec with regards to cut point than competing machinery.

Mr Cochrane says although some HDD companies in Australia may not have heard of BRANDT, its long-term involvement in the drilling industry makes it one of the most experienced manufacturers in the field.

Comprehensive service NOV retains its position as an industry pioneer by not solely being a manufacturer of BRANDT equipment, but also supplying and renting the equipment and providing experienced personnel.

80 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

“We provide a service, we don’t just sell,” says Mr Cochrane.

“We can also rent the equipment and we can provide competent people to optimise the equipment, which ultimately means they will drill faster.”

Long-term customer COE Drilling can attest to this comprehensive service, with COE Drilling Operations Manager David Newitt saying its projects are always planned to use the correct equipment and personnel.

“With this we engage NOV trained personnel to operate and run our mud systems,” says Mr Newitt.

“We have found this works very well as we have the support of NOV with their personnel knowing the equipment and have been able to get direct information on any issue that may arise.”

Mr Newitt adds that NOV’s vast knowledge of the work, not only in running and renting the systems, but also designing and building mud systems, pumps, shakers and more is reassuring.

For more information visit www.nov.com

“Knowing we can pick up the phone and have access to an abundance of support from NOV is priceless.

“Dealing with them onsite or over the phone is also easy; you know that if you have any issue and you need advice, support or parts, NOV will do their utmost to help you.”

NOV has also supplied machinery to Australian HDD specialist HDI Lucas, with transactions dating back a whole decade; HDI Lucas is still using the equipment on NOV’s rigs today, posting on social media that the VSM300 Shaker was “running well” while taking a cut on the pipe-side of a project.

This long-term, ongoing relationship demonstrates not only NOV’s commitment to its customers, but the incomparable quality of its design and manufacturing process. Among its global network of sales, service, manufacturing, distribution and waste treatment facilities, NOV has operations across both the western and eastern coasts of Australia.

PROJECTS

Forward HDD thinking for positive outcomes Advanced upgrades of urban water and wastewater infrastructure are vital for providing continuous, quality service to growing urban communities. Watercare’s Northern Interceptor project, using a specialist HDD solution by HDI Lucas, demonstrates how advanced planning combined with trenchless technology can deliver results in highly populated areas, while minimising impacts to community and environment.

A

uckland is New Zealand’s economic powerhouse, located in the North Island with a population of 1.7 million.

The city is undergoing rapid growth and is seeing major infrastructure investment, including the Northern Interceptor wastewater project. With a new wastewater pipe designed to redirect flows from the northwest areas of the city to the Rosedale Wastewater Treatment Plant in Albany, the Northern Interceptor will be completed in stages as population increases. The first phase will involve combining construction work with a new watermain across the Upper Waitematã Harbour.

As a council-controlled organisation, Watercare provides water and wastewater services to the people of Auckland and Project Manager Dave Moore says forward thinking was vital in relation to planning major infrastructure such as Northern Interceptor.

“Forecasting shows that Auckland’s population is set to increase by 700,000 people in the next 30 years, and our networks need to be prepared well in advance to continue to provide reliable, safe and efficient services,” he says.

“Commencing major projects like Northern Interceptor in advance of demand ensures we are able to plan and manage the project effectively, consulting with local iwi and our wider communities and prioritising sustainability. It also really exemplifies that we are living Watercare’s vision: “Better tomorrow than we are today – Pai ake apõpõ atu i tenei rã.”

Clear objectives, but many considerations While project objectives were clear, the best way to achieve them was less obvious. Project location presented limited existing infrastructure options and major obstacles, with waterside position meaning access to North Auckland was only available via two options: a marine trench or a trenchless solution across the Upper Waitematã Harbour.

Along with all areas in the vicinity of

A worker on the HDD rig onsite in Auckland.

the pipeline being either densely populated urban environments or pristine waterways, identification of a suitable pipeline path and construction methods were key to optimising outcomes. Principal contractor Fletcher Construction recognised the benefits of incorporating horizontal directional drilling (HDD) into the project at the design stage, engaging HDI Lucas to provide specialised trenchless engineering and construction.

HDI Lucas General Manager John Stuart-Robertson says the challenge was to design the large-scale pipeline and associated installation methods, balancing

functional requirements with environmental and stakeholder impacts, engineering constraints and cost.

“We knew what infrastructure was required to be connected by the pipeline, but there were a range of options for what path the pipeline would take, and how it would be installed, as well as significant obstacles – the most obvious being the Upper Waitematã Harbour,” he says.

After exploring several options, a final pipeline design was decided upon, incorporating 500 mm HDPE PN 16 sewage rising mains under the Upper Waitematã Harbour and Te Wharau Creek.

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 81

PROJECTS

HDD solution in complex circumstances Mr Stuart-Robertson says the incorporation of HDD opened major efficiencies and benefits for the pipeline.

“Fletcher Construction had options to construct the pipeline without using HDD, but marine trenching was not the preferred option in the Watercare tender, as it meant potentially a much longer path around the harbour and a lot more impact on the community and environment via trenching along roads and other properties,” he says.

“By using HDD, the pipeline was able to take a much more direct and optimal path, passing directly underneath the harbour and coastal creek, avoiding excessive disruption of highly populated areas and a key transport waterway.”

Mr Stuart-Robertson says the project presented several engineering difficulties that were overcome by effective planning and preparation.

“We completed the maxi rig HDD crossings in challenging rock and clay conditions, and detailed planning and preparation was required to ensure the crossings were constructible and risk was as low as possible,” he says.

“We engineered the crossings to be completed at maximum depth and drillable angles to prevent hydrofracture, without any risky compound curves. Additionally, our bottom hole assemblies were manufactured with variable jet configurations to overcome the East Coast Bays Waitematã rock and sticky clay.

“We also needed to complete detailed planning and negotiation to secure a suitable stringing area, as the urban location of the pipeline meant that options large enough to be safe and suitable were severely limited.”

Wide project benefits, both short and long term Mr Stuart-Robertson added that advanced planning and use of HDD for the project also allowed for effective prioritisation of the culturally significant waterways and wider environments.

“As well as being ecologically and environmentally significant, detailed archaeological assessment carried out for the project showed that the banks of Te Wharau Creek were a significant ancient Mãori burial ground,” he says.

“By using trenchless methods, those culturally important areas remained untouched and unaffected by the project. This is just one example of how use of HDD, along with effective planning, allowed the project to be completed with great regard and respect for

Workers onsite overseeing the pipe pulling operations.

HDI Lucas’ HDD rig at the Northern Interceptor project.

the environment and local communities and stakeholders, maximising project support and positive outcomes.”

Fletcher Construction Project Manager Mike Wall says the project brought benefits to the community on both an initial and ongoing basis.

“Local crews were employed in every aspect of construction, bringing new jobs to New Zealanders,” he says.

“But the real benefits of Northern Interceptor

For more information visit www.entrepose.com/en/hdilucas 82 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

will be felt in the future. Communities in north Auckland will benefit directly from additional wastewater capacity of the Rosedale plant, and the strain will also be taken off the Mãngere plant, optimising its lifespan and minimising the need for works in surrounding areas.”

With the overall stage one of the project nearing completion, additional stages will be completed based on population growth.

HDD EXPERTISE SERVING THE ENERGY, RESOURCES AND UTILITIES INDUSTRIES www.hdilucas.com

PROJECTS

Specialised system locks in success On a major Victorian Government project, a DN 1200 pipe with a high level of water infiltration was required permanent sealing.

Rangedale was contracted to rectify the problem and employed the Smart Lock Group to develop a solution, namely a specialised Smart Lock that could permanently repair and seal the pipe.

Due to the large size, the Smart Lock needed to be placed manually into position in the 7 m deep shaft.

PROJECTS

O

n the project, the Smart Lock needed to measure 1,200 mm in diameter and be 400 mm wide to completely seal the joint. Normally, a Smart Lock made for a pipe diameter of this size would be 200 mm wide and consist of two pieces; however, with the high level of infiltration, the repair needed a one piece solution that would effectively seal and repair the open joint simultaneously.

Smart Lock Group has designed customised Smart Locks in the past for previous certified installers, clients and jobs when various or unique sizes have been required.

The large sheet of Grade 316 stainless steel had to be specially produced from the mill and sent to the engineering department for production. Once the custom-made solution design was finalised, the manufacturing process was completed in under three weeks.

All Smart Locks are made of three elements: the stainless steel sleeve and locking system that is compliant with ASTM A 240, ASTM A 666 and EN 1.4401; application specific proprietary silicate resin, specifically formulated for sewer system use as it adheres to moist surfaces and has a high resistance to aggressive water; and

the E-CR fibreglass matting used to create a heavy duty two-way cloth.

The installation was a challenging job due to the size of the pipe and the size and weight of the equipment required for the install. After extensive project planning by the Rangedale team to ensure the safety of all crew members and equipment, an installation plan was finalised for the 7 m deep shaft.

Specialised lifting equipment was required to hoist the large packer used to expand the Smart Lock in and out of the 7 m shaft, with both the Smart Lock and packer required to be manually placed into position at the repair point.

Due to the high level of infiltration, two layers of fibreglass were used around the Smart Lock to create a permanent seal of the joint, combined with the stainless steel sleeve to create a structural repair and leave a completely clean and smooth internal bore for the pipe.

The installation process took only three hours to complete.

stages load, lock and leave.

By wrapping the stainless steel sleeve with fibreglass and silicate resin and sending the packer down the pipe and into position, the Smart Lock solution is loaded before being locked into place by the innovative ratchet system to complete the repair. With an average installation time of only 30 minutes, the installation team can leave to get to the next job as the resin impregnated fibreglass matting is left to cure behind the stainless steel sleeve.

Smart Lock is ideal for localised defects such as cracks and holes, root infestation, water infiltration, displaced joints and redundant lateral connections, which can be repaired by installing a Smart Lock directly at the location.

The solution provides a cost-effective alternative to excavation, relining or pipe replacement and is a permanent and structural repair.

Additionally, aggressive cleaning, root cutting and relining can be undertaken in future without the concern of damaging the Smart Lock.

Three-step process The Smart Lock is an innovative solution that is quick and easy, completed in three simple

For more information visit www.smartlockgroup.com

THE SMART WAY TO REPAIR PIPELINE FAULTS. Smart Lock is the biggest advancement in point repair technology, in more than 15 years.

For more information visit smartlockgroup•com

With Smart Lock, you can seal redundant lateral connections and repair cracked or damaged pipes in three easy steps, cured in only 30 minutes.

LOAD Smart Lock into position using the caddy

LOCK Smart lock into place with the intelligent ratchet system

LEAVE Cured in under 30 minutes so you can move to the next job

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 85

Sliplining by the creek with kwik-ZIP As part of the Haughton Pipeline Duplication Project in Townsville, Queensland, kwik-ZIP HDX-90 spacers were used to facilitate the sliplining of a carrier pipe at two locations near Majors Creek and Toonpan, Queensland.

The kwik-ZIP spacers used on the Haughton Pipeline Duplication Project in Townsville, Queensland.

PROJECTS

C

ompleted earlier in 2020, the 36 km pipeline project involved a 54 m crossing of Woodstock Giru Road at Majors Creek and a 120 m crossing of the Flinders Highway and Great Northern Railway at Toonpan. kwik-ZIP says its spacers were selected to help facilitate the project due to their ability to protect and support the carrier pipe during the sliplining process. The project included a DN 1800 glass reinforced plastic carrier pipe and a DN 2100 reinforced concrete jacking pipe for the casing. kwik-ZIP says this project highlights its spacers’ “ability to support heavy carrier pipe installation on low friction wear pads that resist abrasion from the casing pipe surface”.

As the pipes were not being grouted after installation the spacers also need to support the weight of the pipe and water for the life of the installation.

The carrier pipe weighed 400 kg/m during

installation and more than 3,000 kg/m when full of water. Due to the weight of the pipe and water, the kwik-ZIP spacer rings were installed at 0.5 m intervals.

The HDX’s unique load sharing design maximises the load bearing capacity of each runner and reduces point loading, creating a simple and efficient installation process that does not require any special tools.

Now completed, the pipeline project will provide Townsville with a backup supply of bulk water from the Burdekin Water Supply Scheme.

A homegrown innovation kwik-ZIP spacers are the only Australianowned product of its kind on the market. With a large range of spacers able to cater for various carrier and casing pipe size combinations, kwik-ZIP can provide flexibility to deal with all

kinds of project requirements. kwik-ZIP’s products have been developed to solve support, grading and centralisation challenges in numerous industries, seeing consistent use in many industry sectors such as horizontal directional drilling and trenchless pipelines.

The spacers contain no metal parts and are made from the company’s own engineered thermoplastic blend that is flexible, tough and has a low coefficient of friction – and the products are “used and recommended by pipeline and civil contractors, water and gas utilities, drilling companies and international engineering firms”. kwik-ZIP has established stockists in Australia, the US, the UK and New Zealand and operates from its head office in Bunbury, Western Australia and maintains warehouse facilities in Sydney, Texas, US and the UK.

For more information visit www.kwikZIP.com

Is your pipe spacer compliant?

Call us for details on ordering P (08) 9725 4678 sales@kwikzip.com www.kwikzip.com

KWIK-ZIP’S HDX SERIES CASING SPACERS COMPLY WITH WSAA PRODUCT SPEC #324 – CASING SPACERS; REFER WSAA PRODUCT APPRAISAL REPORT #1523

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 87

COMPANY NEWS

Creative collaboration beats challenging conditions Many trenchless projects will present unique challenges and obstacles, especially in busy and expanding urban environments.

The ability to innovate and collaborate with project partners and clients makes it possible to overcome any challenge, with such skill put on display at a complex Gold Coast project.

T

he Gold Coast, Queensland, offers a wideranging appeal to locals and tourists alike, demonstrated through its influx of visitors all year round and steadily increasing local population. Recognising this growth, the City of Gold Coast has taken a proactive approach in upgrading its civil infrastructure to ensure the city remains both liveable and a popular tourist destination.

Isle of Capri Bridge Project The Isle of Capri Bridge Project is indicative of this desire, comprising the construction of a new four-lane bridge, along with road and intersection upgrades and the relocation of underground services including the sewer rising mains.

Serving as a major connection between the east and west areas of the coast, the project aims to minimise congestion and increase network capacity while avoiding disruption to more than 18,000 vehicles and users traversing the area daily.

As a vital aspect of the project, Pipeline Drillers Group was engaged by the City of Gold Coast to construct the sewer rising mains aspect of the project utilising trenchless methodology, including more than 500 m of horizontal directional drilling (HDD) of high-density polyethylene sewer lines and crossing the Nerang River.

The use of HDD allowed the project’s proponents to avoid short-term options like attaching services to the old bridge, and the limited capacity and life that these types of solutions present.

A challenging task Pipeline Drillers Group Director John Whitbread says the challenges of the project were evident from the very start.

“If the Gold Coast looks busy on the surface, the same can be said for underground,” he says.

“We had our work cut out for us, with the large quantity and density of existing services; very small entry and exit work areas adjacent

88 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

to the Gold Coast Highway, combined with the need for a maxi size HDD rig; and the need to maintain suitable depth of cover under the Nerang River and near the neighbouring tidal wall. And we needed to do this while minimising disruption to users of the area, as well as locals neighbouring the construction sites, all in dense sand conditions.”

However, there were significant advantages throughout the project as well, with Mr Whitbread saying the City of Gold Coast – as the client – demonstrated it had a great understanding of the project constraints as well as a creative and innovative attitude.

“This provided the perfect platform to work together really effectively, incorporating constraints and minimising risk, while coming to a really clever, modern HDD solution,” he says.

“We still knew that with the right design, risk mitigation, and correct tooling and equipment, the job was achievable.”

Conventional is not the key Due to the existing services, obstacles and space constraints under the waterway, a conventional HDD design was not feasible.

“Knowing this from the start, we engaged our preferred HDD designer, Future-Proof Solutions, to review and improve the client’s design undertaken by SMEC. Together we were able to plan and conceive an innovative solution,” says Mr Whitbread.

The first issue faced was the limited depth of cover at entry, where a hydrofracture analysis showed the initially designed profile area was a high risk for drilling fluid release and bore hole collapse.

Mr Whitbread says to mitigate drilling construction risks, a hammering technique was used to install the sacrificial conductor pipe that minimised the disturbance to the sand conditions and stabilised the surface area of the bore hole prior to the commencement of HDD operations.

The next major hurdle was the excess of the existing services – including other HDD

crossings – in the section under the river.

“We had to avoid the services, but we couldn’t risk introducing a compound curve, with their potential for doglegs, tooling snap-off and other HDD nightmares,” says Mr Whitbread.

“So, we worked with Future-Proof Solutions to conceive an innovative solution incorporating a combined radius for the section under the Nerang River, with the profile curving horizontally and vertically in the same section, with the same tangent points.

“With the modified design, and our construction experience and expertise, we were able to drill a much more consistent profile, steer pattern and borehole, with limited directional changes and the problems they introduce.”

However, the challenges continued once the profile had crossed the waterway, as the project partners still needed to target a suitable exit location while avoiding more existing services.

To do so, a horizontal radius was incorporated into the 12° exit section, allowing a successful execution of this section of the hole and a punch out in the tight exit area as had been planned.

A community collaboration Mr Whitbread says the project was supported by both internal cooperation and the wider Gold Coast community.

“The City of Gold Coast construction teams were sensible and committed to good outcomes for their communities,” he says.

“Their commitment to community engagement was sincere, and due to these efforts, the community was understanding and supportive of what we needed to do during HDD.” Throughout the HDD project, the Pipeline Drillers Group team provided construction advice to guide the City of Gold Coast to a positive outcome.

“We delivered the project on time and on budget, allowing the larger Isle of Capri Bridge Project to progress without impact. It was a phenomenal success, especially considering the difficulties we had to overcome,” says Mr Whitbread.

“This project had so much going on that we really had to be creative. But this was only possible with the trust and collaboration of the City of Gold Coast. They let us do our job, thinking outside the box, and without that cooperation and innovative attitude from both contractor and client, there’s no way we could have achieved the great outcome that we did.”

For more information visit www.pdgroup.com.au Shot view of the hammering casing for HDD.

COMPANY NEWS

CEA becomes official Ditch Witch dealer As a leading agriculture and construction equipment distributor, CEA officially commenced operations as the Australian and New Zealand distributor of Ditch Witch underground construction equipment and Komptech waste recycling equipment.

E

arlier this year, CEA agreed to purchase ELB Equipment – the well-known distributor of Ditch Witch and Komptech equipment – in a transaction that was officially completed on 2 July 2020.

As part of the acquisition, CEA will also become the distributor of Diamond Z, Screenpod, TrackStack, Hammerhead, Ring-O-Matic and Subsite equipment, adding to its expanding portfolio of products for clients operating in the infrastructure construction, utility maintenance, waste management and recycling sectors.

Already operating as the distributor of JCB Construction Equipment Australia, Dynapac compaction and paving equipment, and Atlas Copco generators, portable air compressors, and lighting towers, the addition of Ditch Witch and Komptech to CEA’s portfolio will strengthen the company’s wellestablished footprint across the country.

“We are really pleased to add these strong brands to our product portfolio,” says CEA CEO Hylton Taylor.

ELB Equipment Managing Director Christopher Malan (left) is now CEA’s Executive General Manager with CEA CEO Hylton Taylor (right).

“As a growing business we are continually looking at how we better meet the needs of the ever-evolving market. Adding strong, well established brands to our portfolio strengthens our ability to support our diverse range of existing customers and provides the opportunity to interact with a whole new client base.”

As part of the acquisition 55 employees from ELB Equipment will transition to CEA, ensuring key product knowledge and strong customer relationships are retained within the business.

“We’re excited to be joining CEA,” says ELB Managing Director Christopher Malan.

“CEA is well known for its professionalism, extensive focus on core product lines, and supporting its staff to carry out their integral roles within the business. The ELB team is really looking forward to coming together with CEA to collaborate and build on the Ditch Witch and Komptech brands here in Australia and New Zealand.”

The ELB Equipment head office and

administrative staff commenced relocation to CEA’s head office in Horningsea Park, Sydney from early July 2020, and ELB’s operations in Sydney, Adelaide and Brisbane will commence consolidation with CEA’s facilities throughout the year.

It is anticipated all ELB Australian facilities will be consolidated with their CEA counterparts within 18 months and a priority of the business is to ensure there is minimal disruption and downtime while the transition takes place.

“There will be a period of transition over the coming months as we move the ELB team into the CEA premises, but I am confident we can complete this quickly and with minimal disruption,” says Mr Taylor.

“Since first announcing the acquisition, we have received extremely positive feedback from the market and we are looking forward to the future opportunities this will present to the CEA business.”

For more information visit www.cea.net.au

• Specialists in free boring, sleeve boring and pipe jacking • Sizes ranging from 350mm > 600mm in most ground conditions

• Drill up to 120 meters with a +/- 10mm tolerance • 20 years experience in the drainage industry

At L&D Micro Tunnelling we specialize in laser guided boring. Our Tunnel bore machines use a vacuum extraction system where all spoil is sucked into interceptor tanks for easy disposal with no mess. All our heads are hydraulically driven and guided by a high accuracy laser to achieve precision over long distances.

Unrivalled reliability – Accuracy Guaranteed 47a Brunel Road, Seaford, VIC 3198 | luke@ldmt.com.au | chris@ldmt.com.au | 0401 754 929 | www.ldmt.com.au

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 89

EVENTS

Australasia Water New Zealand Conference and Expo 16–18 September 2020 Hamilton, New Zealand www.waternzconference.org.nz Australasian Tunnelling Conference 29 November – 2 December 2020 Melbourne, Victoria www.ats.org.au/ats-event/2020australasian-tunnelling-conference/ Trenchless Asia 2020 & 35th International No Dig 30 June - 1 July 2021 Kuala Lumpur, Malaysia www.trenchlessasia.com No-Dig Down Under 2021 5–8 October 2021 Sydney, New South Wales www.nodigdownunder.com International No-Dig Moscow 8–10 September 2020 Moscow, Russia www.ecwatech.ru

Water New Zealand Conference and Expo 16–18 September 2020 Claudelands Arena, Hamilton www.waternzconference.org.nz More than 1,200 water professionals are expected to descend on Hamilton for the Water New Zealand Annual Conference & Expo on 16–18 September 2020. The largest event of its kind in New Zealand, the two-and-a-half day event includes keynote and invited speakers, a detailed technical conference program, a trade exhibition with more than 188 exhibitor stands, networking opportunities and a gala dinner. All the latest industry innovations and ideas will be on display, both during the conference program and in the exhibition, giving attendees the opportunity to gain valuable insight into some of the challenges the sector is facing and what the future might look like. Water New Zealand will update attendees on any changes to the schedule if necessary while New Zealand moves through the COVID-19 alert system.

Australasian Tunnelling Conference 29 November – 2 December 2020 Melbourne, Victoria www.ats.org.au/ats-event/2020-australasian-tunnelling-conference/ Hosted by the Australian Tunnelling Society and supported by Engineers Australia and the New Zealand Tunnelling Society, the Australasian Tunnelling Conference will consist of three days of technical presentations, an industry trade show and other activities including workshops and site visits. Scheduled to be held at the Melbourne Convention and Exhibition Centre, attendees will have access to some of the most technical minds in the industry with the potential to also visit some of Melbourne’s current tunnelling projects. Further details on the event will be made available in the near future as the COVID-19 situation develops.

No-Dig Poland October 2020 – dates TBC Kraków, Poland nodigpoland.pl No-Dig Turkey 3–4 December 2020 Istanbul, Turkey www.nodigturkey.com No-Dig Live 23–25 March 2021 Peterborough, UK www.ukstt.org.uk IWA World Water Congress and Exhibition 9–14 May 2021 Copenhagen, Denmark www.worldwatercongress.org Singapore International Water Week 20–24 June 2021 Marina Bay Sands, Singapore www.siww.com.sg

90 TRENCHLESS AUSTRALASIA

Adobe Stock ©lhboucault

No-Dig Down Under 2021 5–8 October 2021 Sydney, New South Wales www.nodigdownunder.com It might seem far away now, but No-Dig Down Under 2021 will be here before we know it, so it’s time to start planning your attendance to the southern hemisphere’s only large-scale conference and exhibition dedicated to trenchless technology. The 2021 edition will be held in Sydney in October next year and will showcase all the new industry innovations, discussions on relevant trenchless issues and access to some of the best and brightest minds in the sector. A packed exhibition hall, informative conference sessions and top-quality networking opportunities make this an event not to be missed in what has become one of the largest no-dig technology events in the world.

Corporate Members New Members

Aaro Group

Maxibor Australia Pty Limited

Abergeldie Watertech Pty Ltd

McElroy Manufacturing Inc.

Adept Drainage Pty Ltd

McMillen Jacobs Associates (NZ)

AECOM

Metrocorp Technologies

AMC Drilling Fluids & Products

Mudex

David Bloedow – STRABAG

Atteris Pty Ltd

Nu Flow Technologies 2000 Pty Ltd

David Bloedow – STRABAG

Auckland Council

Openshore Pty Ltd

Aurecon

Oxford Plastic Systems PTY

Aussie Trenchless Supplies Pty Ltd

Pacific Group Au

Bamser Holdings Pty Ltd

Pezzimenti Laserbore Pty Ltd

BlueZone Group

Pezzimenti Trenchless Pty Ltd

Bortec Laser Bore Pty Ltd

Pezzimenti Tunnelbore Pty Ltd

Bothar Boring

Pipe Core Pty ltd

Bullseye Boring

Pipeline Drillers Group

Coe Drilling Pty Ltd

PipeWorks

Concrete Treatments NZ

Qalchek Pty Ltd

Connect 8

Qenos Pty Ltd

D.J. Mac Cormick Contractors

Queensland Urban Utilities

Dial Before You Dig

Quinn Civil Pty Ltd

Digital Control - Australia

R & R McClure Excavations

Diona Pty Ltd

Raedlinger Primus Line Pty Ltd

Diversified Services Australia

Ravago NZ Ltd

DKM Utility Services Pty Ltd

RBM Plumbing and Drainage Pty Ltd

DM Civil

Reline NZ

Dormway Pty Ltd

Rob Carr Pty Ltd

Drillers World Australia

Rose Atkins Rimmer (Infrastructure) Pty Ltd

Drilling Solutions Australia Pty Ltd

RPC Pipe Systems

Edge Underground

SA Water

ELB Equipment Pty Ltd

SASTTI Joint Venture

Empire Infrastructure

SEKISUI Rib Loc Australia Pty Ltd

EPTEC Pty Ltd

SEQ Trenchless

Fulton Hogan Construction Pty Ltd

Sewer Equipment Company (Aust)

Future-Proof Solutions GHD Pty Ltd

SN Berg Pty Ltd

GM Microtunnelling

Southeys Group Ltd

GN Solids Control

Sydney Water

Great Southern Press

TCD Services

H & H Contractors Ltd

TEN Group

Hard Metals Australia Pty Ltd

TRACTO-TECHNIK Australia Pty Ltd

HDI Lucas

Trenchless Advisor Pty Ltd

Holcim (Australia) Pty Ltd

UEA Pty Ltd

Interflow Pty Ltd

Underground Network Services Pty Ltd

Iplex Pipelines Australia

Unitywater

Kellogg Brown & Root Pty Ltd

VE Hire Pty Ltd

kwik-ZIP Spacers

Vermeer Equipment Holdings Pty Ltd

LKL International Pty Ltd

Vinidex Pty Limited

M. Tucker & Sons Pty Ltd

Warren Smith & Partners

March Cato Ltd

Watercare Services Ltd

Maskell Productions Ltd

Wilmot Plumbing & Pipelining

Corporate Members – Australia Cameron Stevens – CT Civil Steve Spath – AccuBore

Individual Members – New Zealand Kevin Manalo – Pipeline Civil

SEPTEMBER 2020 TRENCHLESS AUSTRALASIA 91

Advertisers Adept Civil Group 75

Interflow

IFC, 21

RBM Plumbing and Drainage Pty Ltd 47

Aussie Trenchless Supplies 49

KAISER Technology 39

Rob Carr 65

Austeck 1

KOR Equipment Solutions 34

Sewer Equipment Company Australia 7

Bothar Boring & Tunnelling 63

kwik-ZIP 87

Smart Lock Group 85

Combivac 37

L&D Microtunnellng 89

Total Drain Cleaning 2,3

DCS Manufacturing 11

M. Tucker & sons 53

TRACTO-TECHNIK Australia 9

Denso (Australia) 15

Mainstream Industries 41

UDS 66

Direct Hit Sewer Nozzles 33

Maxibor Australia 77

Vac Dig 31

Drillers World Australia 16

McRobert Group 57

VAPAR 71,72

Edge Underground 61

National Oilwell Varco (Australia) 79

Vermeer Equipment OBC

ELB Equipment 17,27,29

Pipeline & Civil 23

Wilmot Civil 4,5

GM Microtunnelling 59

PipeTech 25

Winch Hire Australia 43

HDI Lucas 83

Prime Drilling 19

IDS Georadar 13

Rangedale Drainage Services 51

DEADLINES

December 2020

March 2021

June 2021

September 2021

16 October 2020

12 February 2021

23 April 2021

TBC

FEATURES

Manholes and laterals HDD Rehabilitation and repair Utility location and GPR CCTV

Women in trenchless Tunnelling and microtunnelling Relining Inspection and condition assessment Vacuum and hydro excavation

Trenchless contractors HDD Rehabilitation and repair Utility location and GPR CCTV

Drilling fluids and equipment Tunnelling and microtunnelling Relining Inspection and condition assessment Vacuum and hydro excavation No-Dig Down Under 2021 feature

REGIONAL FOCUS

Victoria

South Australia

New South Wales

Western Australia

DISTRIBUTION

Trenchless Middle East PPIM 2021 Locate Conference 2021 No-Dig Live 2021

Locate Conference OzWater Stormwater New Zealand

ASTT Technical Forums

No-Dig Down Under 2021

AUSTRALASIAN

TRENCHLESS DIRECTORY 2019

The official publication of the Australasian Society for Trenchless Technology

2019 Editio n TRN_Directory_2019_Cover.indd 1

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92 TRENCHLESS AUSTRALASIA SEPTEMBER 2020

Australasian Trenchless Directory 2019 Available for purchase from our online shop: www.gs-press.com.au/shop

Position yourself as a market leader First published in 2004, Trenchless Australasia is the leading trade publication for the trenchless technology industry in Australia and New Zealand.

Distributed to 2,800+ no-dig professionals quarterly, including key decision makers at Tier 1 contractors and asset owners, promoting your business in Trenchless Australasia is the ideal way to win contracts, make sales, and grow your business.

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www.trenchless-australasia.com

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