Location

St. Louis, Missouri

Presentation Date

06 Apr 1995, 10:30 am - 12:30 pm

Abstract

An incremental stress-strain model for granular soils based on fundamental soil mechanics principles is presented. The model captures the drained skeleton behavior observed in laboratory tests under cyclic loading. The undrained behavior is captured using the same skeleton stress-strain relation together with the volumetric constraint imposed by the pore water fluid. The model predicts cyclic simple shear response in close agreement with observed cyclic test data in terms of pore water pressure rise, cycles to trigger liquefaction, as well as the characteristic post-liquefaction response. Finally, the model is incorporated in a dynamic analyses procedure and applied to the field case history recorded at the Wildlife site. The recorded downhole time history was used as input and the predicted response compared with the field observation. In general, the agreement is good except for the pore water pressure response, which showed a more rapid rise than was observed.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

3rd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Publisher

University of Missouri--Rolla

Document Version

Final Version

Rights

© 1995 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
 
Apr 2nd, 12:00 AM Apr 7th, 12:00 AM

Effective Stress Liquefaction Analysis at the Wildlife Site

St. Louis, Missouri

An incremental stress-strain model for granular soils based on fundamental soil mechanics principles is presented. The model captures the drained skeleton behavior observed in laboratory tests under cyclic loading. The undrained behavior is captured using the same skeleton stress-strain relation together with the volumetric constraint imposed by the pore water fluid. The model predicts cyclic simple shear response in close agreement with observed cyclic test data in terms of pore water pressure rise, cycles to trigger liquefaction, as well as the characteristic post-liquefaction response. Finally, the model is incorporated in a dynamic analyses procedure and applied to the field case history recorded at the Wildlife site. The recorded downhole time history was used as input and the predicted response compared with the field observation. In general, the agreement is good except for the pore water pressure response, which showed a more rapid rise than was observed.