FRENCH RAILWAY AUTHORITIES - SNCF
Land surface waves (MASW and MicroTremor) applied to cavities detections
Following the feasibility campaign, measurement have been performed on the railways and using the passive seismic recording (microtremor).
Processing and analysis have been conducted using MASW and DCOS.
DCOS analysis is a processing developed and patented by SismOcean to detect and localize every kind of geological anomalies (voids, karts, break of layer horizontality, outcrop …) using the properties of propagation of the surface wave.
Comparison with geotechnical data
- Onshore seismic surface wave (MASW)
- Passive acquisition (microtremor measurements)
- Geological anomaly detection
- DCOS analysis
