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 > Surface depression monitored above Snowy 2.0 headrace

Surface depression monitored above Snowy 2.0 headrace

Tris Thomas

Written by Tris Thomas on 16/12/2022 in News

Tagged: Herrenknecht,Snowy Mountains 2

New South Wales’ Snowy 2.0 teams are monitoring a surface depression that has emerged above the project’s 17km long headrace tunnel at Tantangara. A statement released today (16th December) by the client says, “The integrity of the tunnel has not been compromised, and tunnelling is continuing while work to remediate the surface depression above TBM Florence is carried out. There is a safety exclusion zone around the surface depression.

Tantangara Dam 3 640x360

“Ensuring the safety of the Snowy 2.0 workforce and members of the public is the priority for Snowy Hydro and principal contractor Future Generation Joint Venture. The Snowy 2.0 teams are conducting geophysical investigations of the area and continuing grouting operations and probing from the TBM. “

The ground conditions encountered by the TBMs on Snowy 2.0 have been highly variable, ranging from very loose, sandy ground to extremely hard rock in fluctuating groundwater conditions.

TBM Florence, an 11m diameter Herrenknecht machine, is currently transitioning from soft material into harder rock conditions.

Webuild is leader of the Future Generation joint-venture with its U.S. subsidiary Lane and local partner Clough

Snowy 2.0 is the next chapter in the Snowy Scheme’s history. It is a nation-building renewable energy project that will provide on-demand energy and large-scale storage for many generations to come.

It is the largest committed renewable energy project in Australia. Snowy 2.0 will underpin the nation’s secure and stable transition to a low-carbon emissions future at the lowest cost for consumers.

The project involves linking two existing dams, Tantangara and Talbingo, through 27km of tunnels and building a new underground power station.

Comments:

Leave a Reply Cancel reply

Your email address will not be published.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

  1. Colin Warren says:
    21/12/2022 at 10:41 am

    Would be useful to know what ground they were going through and type of machine (slurry, EPB etc) being used . If superficial sand and/or gravel deposits then possibly could be over-excavation (a possibly explanation for HS1 Lavender Street upward migration although no-one will admit it)

    Reply

Search

Digital Edition

More Like This

05/12/2022

Industry invited to E39 Stord – Os (Hordfast) Market Information Day

Industry invited to E39 Stord – Os (Hordfast) Market Information Day

The Norwegian Public Roads Administration is inviting contractors, suppliers, and advisers to a Market Information Day in Bergen on 12th…

23/03/2023

Double 15.01m Slurry TBMs victories in China

Double 15.01m Slurry TBMs victories in China

On Mar 12th the largest slurry TBM in use in China’s Hunan Province broke through, marking completion of the second…

05/04/2023

Stantec names Dave Sauve as Transportation Business Leader

Stantec names Dave Sauve as Transportation Business Leader

Stantec, a global leader in sustainable design and engineering, has selected Dave Sauve to lead its Transportation Business Line for…

  • 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