C1 presentation February 2017

C1 Construction Stage 2 Feb 2017 July 2016

Project Scope Significant works - CPO including demo mini piling and diaphragm wall platform construction. During construction, existing ticketing and retail functions and pedestrian access to the station will be accommodated in the new temporary station building, east of the CPO and Glasshouse buildings.

Project Programme The Project construction works will occur in four main stages 2016

Project Staging

2016

2017

2018

2019

2020

Project Staging

Construction Zone

2016

2017

2018

2019

2020

Construction Methodology Temporary Accommodation Works – B2

Construction Methodology - CPO

CPO Demolition Packages

Preliminary Programme

Preliminary Works Jan / Feb 2017 •

Heritage Surveys

•

Monitoring

•

CPO Ground Floor Soft Strip o Isolate services (in a just in time manner) o Remove kiosks –> recycle o Remove Timber Raised Stage area > carefully set aside and reengineer for reuse o Handrails > Set aside for reuse / reengineering (into bike stands etc) o Ceiling tiles – remove or protect in place? o Heritage Protection: 

Seal up windows / doors , columns and ceilings – combination of timber frames with shrink wrap (pic)

o Black stone Tiles > take off walls and protect / store for reinstallation

Site Access •

NE CPO -NE Corner Access Column Removal • •

•

Use central ‘well hole’ for plant access to B1 level • •

•

Remove glazing and canopies Saw Cut (Rope) and remove column allowing access into the building

Introduce small crawler crane to CPO ground floor Lift plant and equipment through well hole to B1 level.

Roller Door installed • •

Automatic roller door to be installed at entrance.

Fast door - 1500mm/sec with clear panels

Enabling Works B1 Prop ‘Glass Bridge’ o Glass Bridge propping to be installed (about ½ way along bridge). Designed by CRL and props bridge for later cutting.

Remove Escalators o Install lifting frame over central Escalator o Lift and roll escalator onto CPO ground floor on load skates o Lift southern escalator onto skates and shove (within lift pit) into central position and lift out using same lifting device) o (Night Works) Northern escalator dropped down to B1 level and rolled around to central lifting devices. Lifted out as per the middle escalator.

Temporary covers to lift pits at B1 level.

Heritage Protection CPO Building is Grade 1 Listed Building.

Of special interest is the columns, Decorative Ceilings, Windows & Green Tiles.

•

Timber Frame protection with plywood facings to all plastered columns

•

Timber frame protection to all windows including protection of existing exterior doors. Ply internal facing with external facing black shrink wrap finishes. o Special care to be taken with central ceiling and Green Wall tiles.

•

All Ceilings protected with a shrink wrap type finish across all ceiling.

•

The vestibule (upper floors main entrance) is of significance and although outside of works it will be cared for.

Windows, doors, columns

CPO Ceiling

Enabling Works Fire / Noise Wall Installation •

Temp Noise wall installed on a scaffold at the bottom of the stairs area.

•

To facilitate installation of permanent noise wall

•

Permanent Noise Wall to be Speed Wall

•

In peer review at present?.

•

Located at the return of the Blackstone wall in the Glasshouse area

Existing Layout

Floor Removal • • • • • • • • • • •

Prop under floors Saw-cut floors into 3T sections releasing onto propping Saw-cut through existing stone tiles.

Use Road Saws for speed Cut at the edges of the support walls Use small crawler crane and lift out and tele handler to move to yard.

Mechanical reusable ‘Monkey fist’ lifting device Start in SW corner working in bays across floor to NE Door Peel /separate stone tiles off in yard Reinforced composite floors 250mm deep.

Reinforced concrete support walls

Floor Removal cont…

Wall Removal • • • •

Create Ramp at Tyler Street Entrance down to RL 2.12 Work back in to the building cutting and removing all support and dwarf walls Use combination of wall saws and Rope saws.

Possible opportunity for traditional demolition methods???????

General view CPO and platform level to build for Dwall Platform to build-up level

Mini-pile works

Preparation works for Platform build-up Where appropriate: •

Slots saw-cutting

•

Cut-off removal

•

RC wall cutting

•

Footing demolition

Platform lightweight fill

Example of polystyrene blocks

Dwall Guide wall Layout and cross section

Any questions or comments?

Activation and Hoardings City Rail Link update

What’s on…?

• Activation – Lower Queen Street

• Hoardings – Albert Street

CRL, working with Activate Auckland

CRL, working with Activate Auckland

CRL - working with Activate Auckland i-Site

Safe Zone Chariot Parade Buskers Festival

LQS Feedback Have your say…

• What worked?

• What didn’t?

• Top 3 things you’d like to see in this space?

Hoardings

Wyndham St Wyndham St

Albert St

Swanson St

Mills Ln

Albert Street

Swanson St

Wolfe St

Customs St

Hoardings

Hoardings Sydney Blackfiars Bridge, London

CrossRail

Thank you 

Construction Overview

Programme Pipejack

Dec 2015 – August 2017

Advanced Utilities

May 2016 – July 2017

Pile Walls & Traffic Decks

Oct 2016 – July 2017

April 2017 – June 2018

Excavation

Oct 2017 – Sept 2018

Tunnel Box Backfill

Jan 2018 – Feb 2019

Public Realm

June 2018 – Late 2019

Pipejack • Enabling works for the enabling works

• Divert 1930s storm water tunnel at 18 metres under Albert Street • Strengthen main sewer under future CRL • 4 shafts: Swanson Street, Victoria Street 1 and 2, and Wellesley Street

Piling SR100 CCFA Rig: piling

Cut & Cover • 350m Cut & Cover • Albert Street

- Piling & capping beam & TM - Top Struts & Decks - Excavation & Struts

• Customs and Albert Intersection -

Piles & Jet Grout Bridge deck sections , TM Excavation Join on to Precinct

• Tunnel Box • Backfilling • Public Realm

Cut and Cover: Cross Section • Rail tunnels poured in situ • Traffic lane on top of piling line

Construction traffic deck

Piling SR100 CCFA Rig: piling SM3 Soilmec: grout-piling

Cut & Cover Excavation and struts

Traffic diversion illustration

Public Realm Artist Impression

Questions & Comments