References

Reservoir Rinderberg, Zweisimmen

Location
St. Stephan / Zweisimmen BE
Execution period
August 2024
Client
Bergbahnen Destination Gstaad
Drillings
5 pcs | Ø 150 mm
Depth
up to 6 m
Subsoil
Bedrock under a thin layer of loose sediment
Drillhole tests
SPT
Expansion
Piezometer tubes 2" | inclinometer tubes
Particular challenges
Very steep terrain, water supply by helicopter
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Tunnel traffic relief, Rothenthurm

Location
Rothenthurm, SZ
Execution period
June until August 2024
Client
Tiefbauamt Schwyz
Drillings
11 pcs | Ø 200 - 100 mm
Depth
up to 60 m
Subsoil
Bedrock under partly thin layers of loose sediment"
Drillhole tests
SPT, Pumping and filling tests, dilatometer, borehole scan
Expansion
Piezometer tubes 2"
Particular challenges
Tense groundwater conditions, alternating layers in the rock (soft/hard), near springs
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