Ground response analysis (GRA), also called site response analysis, is a critical tool for predicting how soil layers at a specific site will modify seismic waves during an earthquake.
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Hudson Geotechnics has high-level expertise in GRA. The California Geological Survey (CGS) reviewed a recent GRA report for a Site Class F site by HGI and stated the “…analysis is complete, comprehensive, and well documented in a report by Hudson Geotechnics… Hudson Geotechnics’ site response analyses is comprehensive…well designed and well executed.”
2. Maximum profile response
1. Stress-strain response, strain, and excess pore pressure ratio time series colored by time
3. Amplification and attenuation of shaking