Location
San Diego, California
Presentation Date
31 Mar 2001, 8:00 am - 9:30 am
Abstract
Sufficient data currently exist to propose a shear-wave velocity model for the near-surface deposits in southwestern British Columbia. This model has been developed in order to estimate shear-wave velocity profiles where such data are lacking but where the stratigraphy is known, primarily for seismic microzonation mapping. In general, Pleistocene deposits that have been overridden by glaciers have shear-wave velocities greater than 400 m/sec. Consequently, little amplification of ground motion due to soil conditions would be expected in these deposits. However, Late Pleistocene deltaic and glaciomarine deposits that have not been overridden by glaciers, and Holocene deltaic, alluvial, and lacustrine, shoreline and organic deposits have average shear-wave velocities between 75 and 330 m/sec. Where sufficiently thick, these deposits are susceptible to moderate to high amplification of ground motion. In these Late Pleistocene and Holocene deposits, average shear-wave velocity increases with grain size. The data presented here are preliminary, and additional data are required for a reliable characterization of some environments
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2001 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Monahan, Patrick A. and Levson, Victor M., "Development of a Shear Wave Velocity Model of the Near-Surface Deposits of Southwestern British Columbia, Canada" (2001). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 2.
https://scholarsmine.mst.edu/icrageesd/04icrageesd/session11/2
Included in
Development of a Shear Wave Velocity Model of the Near-Surface Deposits of Southwestern British Columbia, Canada
San Diego, California
Sufficient data currently exist to propose a shear-wave velocity model for the near-surface deposits in southwestern British Columbia. This model has been developed in order to estimate shear-wave velocity profiles where such data are lacking but where the stratigraphy is known, primarily for seismic microzonation mapping. In general, Pleistocene deposits that have been overridden by glaciers have shear-wave velocities greater than 400 m/sec. Consequently, little amplification of ground motion due to soil conditions would be expected in these deposits. However, Late Pleistocene deltaic and glaciomarine deposits that have not been overridden by glaciers, and Holocene deltaic, alluvial, and lacustrine, shoreline and organic deposits have average shear-wave velocities between 75 and 330 m/sec. Where sufficiently thick, these deposits are susceptible to moderate to high amplification of ground motion. In these Late Pleistocene and Holocene deposits, average shear-wave velocity increases with grain size. The data presented here are preliminary, and additional data are required for a reliable characterization of some environments
