Comparison of Three Surface Wave Measurements and a Seismic Downhole Measurement in a Complex-Layered System

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Three commercially-available seismic surface wave methods (SWM) were tested at a challenging site containing a high velocity layer (HVL). Methods tested included two active-source SWMs, the Spectral Analysis of Surface Waves method and the Multichannel Analysis of Surface Waves method; and one passive-source SWM, the Refraction Microtremor method. A borehole log and data from a shallow downhole seismic measurement were also available for comparison. While shear wave velocity profiles for the three methods were different, slowness-averaged velocities were comparable. None of the SWMs successfully resolved the HVL. The underlying cause can be the inherent capacity of the methods for averaging velocity with depth.


Civil and Environmental Engineering | Civil Engineering | Construction Engineering and Management | Operations Research, Systems Engineering and Industrial Engineering | Structural Engineering | Systems Engineering | Tectonics and Structure


Conference held: Shanghai, China, June 6-8, 2006


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