Seismic Site Class Assessment & Vs30
A seismic site class assessment or Vs30 provides valuable information for structural design of buildings to de-risk future infrastructure from earthquake ground shaking.
The thickness and properties of the ground (soil/rock) play a crucial role in the propagation of earthquake seismic waves. Seismic surveys are used to measure shear wave velocity profiles which are used to infer site specific seismic period and. RDCL deploys multiple systems to produce seismic data according to your specific needs. Surface seismic (MASW and MAM) systems are deployed on surface and reach depths of ~25m to several hundred meters below ground. Downhole systems are deployed in drillholes and from CPT and include downhole and crosshole seismic, P&S wave suspension loggers, and FullWave Form Sonic logs as well as sCPT (seismic CPT) and seismic flat plate dilatometer.