Comparing Shear-Wave Velocity Profiles From Inversion of Surface-Wave Phase Velocities with Downhole Measurements: Systematic Differences Between the CXW Method and Downhole Measurements at Six USC Strong-Motion Sites

摘要: INTRODUCTION Shear-wave velocity profiles are used in a variety of engineering and seismological applications, several methods available to determine the velocities, including borehole surface-wave (Woods Stokoe, 1985; Stokoe et al. , 1988; etal. 1994; Poran 1996). Surface-wave offer advantage being non-invasive less costly than boreholes, but their reliability needs be established by comparison with more direct methods. The best way do this is “blind” test which velocities determined independently from measurements at same site compared. By we mean that determination shear-wave profile two were done one another. It surprisingly difficult find situations determinations truly independent We report on such case paper. In...