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