Snowy 2.0 project update says;
Reports today that tunnel boring machine (TBM) Florence has stopped tunnelling are incorrect.
TBM Florence remains fully operational and is now more than 800 metres into excavation of the Snowy 2.0 headrace tunnel at Tantangara. The TBM has operated successfully since its restart on 8 December 2023 and has moved through identified soft ground into hard rock.
The total distance tunnelled by all three Snowy 2.0 TBMs across the pumped-hydro renewable energy project is approximately nine kilometres.
As provided in evidence at two recent Senate Estimates hearings, Snowy Hydro has been investigating options to de-risk the headrace tunnel construction by excavating from the other end. This work remains ongoing.
For the full text;
https://www.snowyhydro.com.au/news/snowy-2-0-project-update-april-2024/
In a separate development; Sky News says Snowy 2.0 suffered partial tunnel collapse due to “drill and blast” operations in an adjacent tunnel.
The part ofter 3:47 are relevant.
https://youtu.be/ZY5rPjDxXGg?t=226
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.snowyhydro.com.au/news/snowy-2-0-project-update-april-2024/
SNOWY 2.0 PROJECT UPDATE - APRIL 2024 - Snowy Hydro
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