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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

A traffic relief project is planned for the municipality of Rothenthurm SZ. As part of a variant study, boreholes are being drilled to assess the ground conditions for the tunnel construction.

Our team drilled to a depth of up to 60 meters at 11 locations, even under challenging conditions, to reach the underlying bedrock. The boreholes are equipped with piezometers to monitor the groundwater conditions. In addition, geophysical borehole tests are being conducted to evaluate the rock quality.

👉 Further information can be found in the articles of «Urschweizer Bote» from 15.03.2024 and 09.07.2024.