Mercury Lane Works Update – Sheet Piling Dear neighbours, Week commencing February 24 we will begin the works for sheet piling at the Mercury Lane construction site in preparation of excavation for the new Karangahape Station. This will take place for approximately three to four weeks. What is sheet piling and how will it be staged? Sheet piles are sections of sheet steel with interlocking edges that are vibrated into the ground to form a wall and provide soil retention, excavation support and a safety barrier. They are being inserted to enable construction of the temporary access shaft (pictured below). The ten metre long steel sheet piles will be vibrated into the ground with a crane and vibrator until firm ground is reached (indicative picture below).
Indicative of sheet piling method illustrated on the left, which will be used to support soil retention and the creation of the temporary access shaft, as pictured on the right hand side.
Works update: February 2020
How will this affect me? Due to the nature of the work, aspects of sheet piling will create noise and vibration across the site. However we limit the periods of use throughout the day. We will also carry out monitoring for dust, noise and vibration. The noise resulting from the vibrating of each sheet pile will be intermittent. These works will be carried out within the perimeter of our construction site and will not affect pedestrian or vehicle access in the surrounding area.
Where can I go for more information? If you have any questions or concerns about these works, please email us at karangahape@linkalliance.co.nz or phone 0800 CRL TALK and press option 4 for Karangahape Station works. Information and updates are also available online at www.cityraillink.co.nz - including a page dedicated to Karangahape Station works www.cityraillink.co.nz/karangahape-station-works. You can also follow the CRL project on social media with Facebook, Instagram, YouTube and LinkedIn.
Works update: February 2020