Ventilation Tunnel Blast Hole Drilling Process Explained
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Ventilation Tunnel Blast Hole Drilling Process Explained
6.7K views2 weeks ago
TikToker.civil.hydropow
🚧 A hole lot of excavation! 🚧 At Marica, high in the Snowy Mountains, a very wide and deep surge shaft connecting to the Snowy 2.0 headrace tunnel is being built. It’s about 28 metres in diameter and currently over 80 metres deep, on the way to a depth of 250m, which will make it one of the deepest operating shafts in the world! Did you know? The surge shaft has two key purposes for the operation of a hydro power station: as a water storage and vacuum relief when the power station starts up, a
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🚧 A hole lot of excavation! 🚧 At Marica, high in the Snowy Mountains, a ve…
12.5K viewsMay 1, 2024
FacebookSnowy Hydro
🚧 TBM tunnelling innovation! 🚧 Snowy 2.0 is at the forefront of tunnelling technology and innovation, with tunnel boring machine (TBM) Kirsten about to embark on a steep uphill excavation of the 1.6 kilometre inclined pressure shaft. The concrete segments used to line this 10 metre-diameter shaft feature a Force Activated Coupling System (FACS) which utilises unique steel couplers. In our latest update, find out more about the FACS and the modifications that will enable TBM Kirsten to tunnel u
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🚧 TBM tunnelling innovation! 🚧 Snowy 2.0 is at the forefront of tunnelling …
5.2K viewsApr 3, 2024
FacebookSnowy Hydro
Scott Morrison has unveiled a new tunnel boring machine, named ‘Kirsten’, at the Snowy Hydro 2.0 project. The 205-metre long machine is named in honour of astrophysicist, science communicator and Wiradjuri woman Kirsten Banks. It has a diameter of around 11 metres, or the same as a three-storey building. "Snowy 2.0 is building on the proud legacy of the first Snowy scheme, using local ingenuity to deliver landmark new infrastructure that will benefit Australia and the national electricity market
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Flooding is a major ground risk in tunnel construction, as unexpected water ingress can destabilise excavation, delay progress, and endanger safety. Thorough ground investigation is essential to identify groundwater levels and potential water-bearing zones, allowing engineers to plan effective water control measures and reduce the risk of flooding. Probing ahead of the tunnel face is also a reliable method to detect potential water before excavation, enabling timely adjustments to tunnelling met
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