Low-Frequency Surface Wave Testing Methodology
Principal Investigator: Brent L. Rosenblad, University of Missouri-Columbia
Move the state of earthquake engineering knowledge and practice forward by meeting the following objectives:
- Develop a low-frequency surface wave testing methodology for effective and efficient characterization of the stiffness structure of very deep sediments. The proposed study will advance the state-of-the-art of non-intrusive geotechnical site assessment by profiling to depths that were not previously attainable prior to the advent of the NEES program.
- Non-intrusively characterize the unknown shear wave velocity (VS) structure of the deep Mississippi Embayment sediments at 8 to 12 sites in the New Madrid Seismic Zone. The data derived from this study will fill an existing gap in our knowledge of the stiffness structure of the Mississippi Embayment sediments.
- Perform analytical studies of site response in the Mississippi Embayment using the newly developed deep shear wave velocity profiles. These studies, combined with recent complementary laboratory studies of non-linear soil behavior at high confining pressures, will advance our understanding of the influence of deep soil deposits on predicted ground motions.