Location

St. Louis, Missouri

Session Start Date

4-2-1995

Session End Date

4-7-1995

Abstract

A simple pore pressure build-up model is introduced in this paper to simulate the effective-stress paths of saturated soils subjected to dynamic loadings. It is a five-parameter model in which two pairs of two parameters are used to define the effective-stress paths during the loading phases of first cycle and post-phase-transformations, respectively, and a dynamic pore pressure parameter is judiciously introduced to represent the increment of pore pressure due to shear loading in between the previous two phases. All parameters can be easily deduced from conventional undrained triaxial tests. Satisfactory results have been achieved for case studies including published results of laboratory uniform and non-uniform cyclic tests and seismic field measurements.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Third Conference

Publisher

University of Missouri--Rolla

Publication Date

4-2-1995

Document Version

Final Version

Rights

© 1995 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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

A Simple Model for Pore Pressure Build-Up of Soil Under Dynamic Loadings

St. Louis, Missouri

A simple pore pressure build-up model is introduced in this paper to simulate the effective-stress paths of saturated soils subjected to dynamic loadings. It is a five-parameter model in which two pairs of two parameters are used to define the effective-stress paths during the loading phases of first cycle and post-phase-transformations, respectively, and a dynamic pore pressure parameter is judiciously introduced to represent the increment of pore pressure due to shear loading in between the previous two phases. All parameters can be easily deduced from conventional undrained triaxial tests. Satisfactory results have been achieved for case studies including published results of laboratory uniform and non-uniform cyclic tests and seismic field measurements.