Vertical Shear Wave Velocity Profiles Generated from Spectral Analysis of Surface Waves: Field Examples
Surface wave (Rayleigh wave) seismic data were acquired at six separate bridge sites in southeast Missouri. Each acquired surface wave data set was processed (spectral analysis of surface waves; SASW) and transformed into a site-specific vertical shear-wave velocity profile (SASW shear-wave velocity profile). The SASW shear-wave velocity profiles generated for each bridge site were compared to other geotechnical data including seismic cone penetrometer shear-wave velocity profiles, cross-borehole shear-wave velocity profiles, and borehole lithology logs. The geotechnical data presented herein indicate the SASW shear-wave velocity profiles correlate well with subsurface lithology logs and available cross-borehole shear-wave velocity control. More specifically, clays, silts and sands exhibit relatively characteristic SASW shear-wave velocities, which increase incrementally with increasing depth of burial. We believe these correlations demonstrate that SASW shear-wave velocities are reliable.
N. L. Anderson et al., "Vertical Shear Wave Velocity Profiles Generated from Spectral Analysis of Surface Waves: Field Examples," University of Missouri-Rolla, Apr 2003.
Geosciences and Geological and Petroleum Engineering
Civil, Architectural and Environmental Engineering
Missouri Department of Transportation
Keywords and Phrases
surface waves; SASW; seismic; cone penetrometer; shear waves; cross borehole; southeast Missouri; shear modulus
RDT-03-006; RI-01-006; RI-01-053
© 2003 University of Missouri-Rolla, All rights reserved.
01 Apr 2003