Levee stability study through 3D analysis of conductivity distribution

Following floods that led to numerous levee failures, significant geophysical recognitions were implemented to detect potential structural weaknesses.

The recognitions were done with a multi-depth EM and allowed 3D block production. This resulted in surveying the weak zones by highlighting areas with more sand or gravel within the levee.

Conductivity anomalies highlight structural weaknesses in earth levees

The acquired profiles with the DualEM device allowed a 3D reconstruction of the levee conductivity. Study undergone by our partner GeoAstier.

The DualEM is a very lightweight geophysical instrument, quickly mobilized
Location Europe
Instrument DualEM 642
Positioning DGPS
Geometry Continuous measures
Length 42.8 kilometers
Personnel 3 people
Duration 8 days