References

Drilling from a rail wagon, Goppenstein

Location
Goppenstein, VS
Execution period
24.03.2025 - 31.03.2025
Client
BLS
Drillings
4 pcs | ⌀ 150 mm
Depth
15 m
Subsoil
Slope debris
Drillhole tests
SPT
Expansion
Piezometer pipes 2"
Particular challenges
Drilling from a rail wagon, nightwork
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Drilling from pontoon, Lake Zurich

Location
Uetikon, ZH
Execution period
February 2025
Client
Dr. von Moos / AWEL Kanton Zürich
Drillings
30 pcs | ⌀ 150 mm
Depth
up to 11 m
Subsoil
Lake sediment
Drillhole tests
Shear tests, sampling
Particular challenges
Overcoming water column, risk of hydraulic fracture failure, water-saturated sediments
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