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Collaborative Study at Los Alamos National Laboratory
Principal Investigator: Kenneth H. Stokoe II, University of Texas at Austin
This is an added NEESR project. Funding is provided by the U.S. Department of
Energy. There are three major tasks in this project:
- The first investigation is vertical seismic profiles (VSPs) to be conducted in two existing boreholes using T-Rex in both P- and S- modes. SH-wave source
polarizations shall be used to infer material anisotropy. In addition to
anisotropy, frequency dependence of the velocity profile will be explored
using the controlling source bandwidth of T-Rex.
- The second
investigation is a relative site response experiment with the goal of
evaluating the relative response of canyon and ridge sites to vertical
SH-waves using T-Rex as a source.
- The third investigation is an in-situ
experiment to evaluate the nonlinear response of the shallow soft tuff layer
Qbt3L using an embedded array of sensors with T-Rex and Thumper as the SH-
and P-wave source. The source will be positioned directly over the sensors.