LOIRE ESTUAIRE
River crossing by horizontal directional drilling (HDD), shallow water seismic surface wave
The objective of the aquatic seismic campaign is to detect healthy and, or altered gneiss, within the limits of the physical properties of the materials in terms of shear rates. The position of this formation is a significant parameter for the dimensioning of the work envisaged within the framework of the project studied.
Depth investigation between 30 and 40 meters
About 20 km of measurements in dynamic mode has been acquired and processed
- Offshore seismic refraction (MSR)
- Offshore seismic surface wave (UMASW).
- Dynamic approach (equipment dragged on the seabed)
- Pipeline route
- Crossing river
- Horizontal Directional Drilling (HDD)
