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 2022
  • Buyer’s Guide
  • Events Diary
  • Jobs
  • About Us
  • Contact Us
  • Podcast

Home > HS2 north portal TBM launch site complete

HS2 north portal TBM launch site complete

Tris Thomas

Written by Tris Thomas on 26/02/2021 in Uncategorized

Tagged: Herrenknecht,HS2

Excavation has been completed on the north portal site of HS2’s Long Itchington Wood Tunnel, ready for the launch of the TBM that will bore under the ancient woodland in Warwickshire.

The works were undertaken by Collins Earthworks under contract to HS2’s main works contractor BBV Joint Venture (Balfour Beatty Group and VINCI Construction), which is responsible for building the northern section of HS2 as it heads into Birmingham.

The team has excavated 300,000m3 of soil, with the topsoil and subsoils stored and separated with a layer of straw, so they can be put back in the same way after the tunnel has been built.

The yet-to-be named 2,000 tonne Herrenknecht TBM is currently arriving at the prepared site in pieces and will be reassembled ready to start boring the tunnel in the summer. It will take five months to construct the first bore of the tunnel. It will then be extracted at the south portal before being transported by road back to the north portal to commence the second bore.

At the peak of construction on the whole of Phase One, ten TBMs will work 24 hours a day, 7 days a week. Weighing up to 2,200 tonnes, each 160m long machine will bore and line the tunnels as they drive forward at speeds of up to 15m per day.

HS2 site

Comments:

Leave a Reply Cancel reply

Your email address will not be published.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

Search

Digital Edition

More Like This

22/12/2022

CRCHI TBM achieves record advances in Peru

CRCHI TBM achieves record advances in Peru

December 6th saw the first CRCHI hard rock TBM exported to South America create an advance rate record of more…

12/01/2023

McMillen Jacobs Associates re-brands

McMillen Jacobs Associates re-brands

McMillen Jacobs Associates, specializing in delivering underground infrastructure throughout North America and Australasia, is pleased to announce it has rebranded…

05/12/2022

LTA awards Punggol Interchange and CRL2 bored tunnel contracts

LTA awards Punggol Interchange and CRL2 bored tunnel contracts

Singapore’s Land Transport Authority (LTA) has awarded two civil contracts; one for the design and construction of Punggol interchange station…

  • 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