Location
St. Louis, Missouri
Presentation Date
14 Mar 1991, 10:30 am - 12:30 pm
Abstract
Cyclic triaxial tests are conducted on saturated sand samples with different values of initial pore pressures existed throughout the whole process of tests. It is found that the presence of such initial pore pressures (or static hydraulic pressures) tends to increase the liquefaction resistance of the sand samples. The effects of the degrees of saturation are also investigated by conducting another four sets of the cyclic triaxial tests on sand samples with different levels of saturation, since the degree of saturation is a very closely related factor which could be changed by the presence of the initial pore pressures. The interactions among the sand particles are analyzed in order to provide some reasonable explanations for the effects of initial pore pressures. Furthermore, it is realized that the Terzaghi's effective stress principle in soil is no longer valid for such cases as in this paper unless some additional conditions are added for the actions of interparticle forces in soils.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1991 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
Xia, Hong, "Sand Liquefaction with Initial Pore Pressures" (1991). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 43.
https://scholarsmine.mst.edu/icrageesd/02icrageesd/session03/43
Included in
Sand Liquefaction with Initial Pore Pressures
St. Louis, Missouri
Cyclic triaxial tests are conducted on saturated sand samples with different values of initial pore pressures existed throughout the whole process of tests. It is found that the presence of such initial pore pressures (or static hydraulic pressures) tends to increase the liquefaction resistance of the sand samples. The effects of the degrees of saturation are also investigated by conducting another four sets of the cyclic triaxial tests on sand samples with different levels of saturation, since the degree of saturation is a very closely related factor which could be changed by the presence of the initial pore pressures. The interactions among the sand particles are analyzed in order to provide some reasonable explanations for the effects of initial pore pressures. Furthermore, it is realized that the Terzaghi's effective stress principle in soil is no longer valid for such cases as in this paper unless some additional conditions are added for the actions of interparticle forces in soils.
