Leibstadt AG

High resolution hybrid seismic investigation mapping the weathering layer thickness and for estimating the bedrock quality in the area of a nuclear power station; 5 hybrid seismic profiles totalling 1.5 km, depth of investigation: 200 m. Up-hole shots in 4 boreholes down to 100 m. Down-hole shots in 4 borholes down to 100 m to determine p- and s-wave-velocity to derive the poisson’s ratio. Multichannel analysis of surface waves (MASW) to determine the shear-wave velocity field; 1 test profile of 300 m length. Crosshole test over three borholes down to 130 m.

Category Engineering geology
Country Switzerland
Project period Sep 2008 - Jul 2009
Number of lines 5
Total length (m) 1,500
Depth (m) 200