tunnelling-journal (1)
tunnelling-journal (1)
  • Home
  • Print
    • Subscribe
    • Tunnelling Journal
    • Breakthrough
    • ITA Activity Report
    • A&NZ Journal
    • WTC Preview
    • Media Kit
  • Digital
    • Newsletter
    • E-Shots
    • TJ Digital edition
    • Products Page
    • Media Kit
  • Conferences
    • BTS Conference and Exhibition
    • Cutting Edge 2023
  • Buyer’s Guide
  • Events Diary
  • Jobs
  • About Us
  • Contact Us
  • Podcast

Home > Cowi – Nishimatsu wins large diameter package on Cross Island Line

Cowi – Nishimatsu wins large diameter package on Cross Island Line

Tris Thomas

Written by Tris Thomas on 06/04/2022 in News

Tagged: COWI,Cross Island Line,Nishimatsu,Singapore

Together with client, Nishimatsu Construction Ltd, Cowi has won a package of work on Singapore LTA’s Cross Island Line that includes 2.9km of bored tunnel, 300m of cut and cover tunnels, a 2-storey facility building with 5 level of basement to provide electrical and mechanical service. A large-diameter TBM, measuring 12.6m in diameter, will be used to construct the single tunnel with two tracks. This will be one of the largest TBMs ever deployed in Singapore. The cut and cover tunnels will extend 45m deep and the bored tunnel depth will vary from almost 50m underground at its deepest to less than 12m cover at its shallowest.

Generic tunnel image

Expected to open in 2030, the Cross Island Line (CRL) will be Singapore’s longest fully underground line at more than 50km and is expected to carry over 600,000 commuters each a day. CRL will ease travelling across eastern and western parts of Singapore and reduce traffic congestion on the existing East-West Line while providing an alternative option to commuters.

Jotham Vizard, Senior Vice President in COWI’s international transportation unit, is super excited about this opportunity: “We are immensely proud to be able to assist Nishimatsu in creating this state-of-the-art metro in Singapore. As TBM technology improves, large diameter tunnels are becoming more common, and this project maintains our leading position in the large diameter market.”

Vince Goh, Managing Director for COWI in Singapore, adds: “This project involves a number of exciting technical challenges other than the large diameter tunnel itself. Among others, the tunnel will go underneath a military airport with sensitive fibre reinforced pipe (FRP), runway, taxiway, apron, airport structures which increase limitation in ground movement during both bored and mined tunnelling operation. Moreover, any TBM cutterhead intervention beneath the airbase will need to be pre-planned and in hyperbaric environment due to the depth. Multiple closely spaced adits for future underground infrastructure is also part of the challenge. The

tunnel will also go under public roads and will under cross the Sungei Serangoon vehicular bridge and Kallang-Paya Lebar Expressway viaduct.”

Construction works are expected to start in June 2022.

Comments:

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Search

Digital Edition

More Like This

25/07/2023

Strabag HS2 tunnel segment production begins

Strabag HS2 tunnel segment production begins

The production of the concrete tunnel segments for HS2 has begun at a new facility at Hartlepool docks. STRABAG were…

03/12/2023

RFP to Shortlist for Yonge North Subway Extension Tunnelling Contract

RFP to Shortlist for Yonge North Subway Extension Tunnelling Contract

Infrastructure Ontario (IO) and Metrolinx have released a Request for Proposals (RFP) for the Advance Tunnel Contract package for the…

09/08/2023

Boring completed on London’s Silvertown Tunnel

Boring completed on London’s Silvertown Tunnel

Jill, the 11.9m diameter Herrenknecht TBM delivering the Silvertown Tunnel in east London, has now completed work on the second…

  • Contact Us
  • Media Kit
  • Magazine Archive

Newsletter

The latest from the Tunneling Journal direct to your inbox.

Social



Enquiries

TGS Media Ltd
The Old Library
Webster House
Dudley Road
Tunbridge Wells
TN1 1LE
United Kingdom

© Tunnelling Journal. All Rights Reserved. Privacy Policy / Terms & Conditions. Admin

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.OkRead more