Cyclic Pore Pressure Generation, Dissipation and Densification in Granular Mixes-Reference-Cited by-同舟云学术

Cyclic Pore Pressure Generation, Dissipation and Densification in Granular Mixes

Published: Issue: Volume: Page:66-84
ISSN:
Container-title:Geotechnical Applications for Earthquake Engineering
language:
Short-container-title:

Author:

Thevanayagam S.¹,Shenthan T.²

Affiliation:

1. University at Buffalo, SUNY, NY, USA

2. Advanced Earth Sciences Inc., CA, USA

Abstract

Knowledge of cyclic load induced pore pressure generation, post-liquefaction dissipation and volumetric densification characteristics of sands, silty sands, and silts are important for the analysis of performance of loose saturated granular deposits in seismic areas. This article presents results from an experimental study of these characteristics for such soils containing 0 to 100% non-plastic silt. Pore pressure generation characteristics are studied using undrained cyclic triaxial tests. Pre- and post-liquefaction compressibility and coefficient of consolidation, and post-liquefaction volumetric densification characteristics are determined from consolidation data prior to cyclic tests and pore pressure dissipation tests following undrained cyclic tests. Effects of fines content on these characteristics compared to those of clean sands are examined in the context of intergranular void ratio and intergranular contact density concepts.

Publisher

IGI Global

Reference41 articles.

1. Andrews, D. C. A., & Martin, G. R. (2000). Criteria for liquefaction of silty soils. In Proceedings of the 12th WCEE 2000 Conferance, Auckland, NZ.

2. Chang, N. Y. (1990). Influence of fines content and plasticity on earthquake-induced soil liquefaction. contract No. DACW3988-C-0078, US Army WES, MS.

3. Coduto, D. P. (1999). Geotechnical. Upper Saddle River, NJ: Prentice Hall, Inc.

4. El Hosri, M. S., Biarez, J., & Hicher, P. Y. (1984). Liquefaction characteristics of silty clay. In Proceedings of the 8th World Conference Earthquake Eng. (Vol. 3) (pp. 277-84), San Francisco, CA.

5. The undrained behaviour of clayey sands in triaxial compression and extension