Shear-wave Reflection-seismic and ERT Investigation for Slope Stability
G. Sauvin, A.O.K. Lysdahl and S. Bazin
Event name: 23rd European Meeting of Environmental and Engineering Geophysics
Session: Integrated Approaches in Near-surface Geophysics I
Publication date: 03 September 2017
Info: Extended abstract, PDF ( 2.93Mb )
Price: € 20
As part of a civil engineering project for line of communication extension, slope stability analysis was required. The ground model, based on geotechnical soundings alone failed to resolve the required parameters. Therefore, a more extensive study combining Electrical Resistivity Tomography and S-wave reflection seismic was conducted. The resulting geological model properly address the need for a comprehensive slope stability analysis. The integration of structural information from the SH-wave reflection seismic, the resistivity model and the geotechnical soundings provides a sounded geological model down to the bedrock and a clear image of the overlaying moraine, marine clay and fluvial deposits.