Location

San Diego, California

Presentation Date

28 Mar 2001, 4:00 pm - 6:30 pm

Abstract

Several actual earthquake records recently obtained are analyzed and the post-strong seismic shaking is characterized using parameters such as number of cycles and average shear stress. These parameters are integrated with laboratory test results from the Japanese standard Toyoura sand, and applied to an ideal sandy soil profile to estimate the reduction of residual strength. Different levels of strength reduction are obtained depending on the characteristics of the post-strong seismic motion and sand relative density. Steady-state concepts are shown to overestimate the residual strength of saturated sands and provide dangerous evaluation of post-seismic stability analysis.

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

Creative Commons License
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

Share

COinS
 
Mar 26th, 12:00 AM Mar 31st, 12:00 AM

Influence of Post-Strong Seismic Shaking on the Residual Strength of Saturated Sand

San Diego, California

Several actual earthquake records recently obtained are analyzed and the post-strong seismic shaking is characterized using parameters such as number of cycles and average shear stress. These parameters are integrated with laboratory test results from the Japanese standard Toyoura sand, and applied to an ideal sandy soil profile to estimate the reduction of residual strength. Different levels of strength reduction are obtained depending on the characteristics of the post-strong seismic motion and sand relative density. Steady-state concepts are shown to overestimate the residual strength of saturated sands and provide dangerous evaluation of post-seismic stability analysis.