Publication Date
2016
Journal or Book Title
Latin American Journal of Solids and Structures
Abstract
Instability of liquefaction is one of the major reasons which results in the failure of earth structure such as dam. The present study focuses on the simulation of static liquefaction behavior for granular materials such as sand and sand-silt mixtures. Based on micromechanical analysis of inter-particle behavior, a simple one-scale model is proposed to simulate the stress-strain response of sand; then the proposed model is extended to simulate the sand-silt mixtures using the mixture theory combining the properties of sand and silt according to their proportions. Empirical expressions are introduced to fit the critical state strength and the location of the critical state line for each mixture. Parameters of the model can be divided into two categories: the first seven parameters have the same values either with pure sand or pure silt for silt-sand with any given fines content; the other three parameters are the function of fines content and three more parameters are required to estimate their values. The predicted results of triaxial test of sand and sand-silt mixtures with different fine content, which has a good agreement with the results of laboratory tests, suggest that the proposed model can simulate static liquefaction behavior of sand and sand-silt mixtures.
DOI
https://doi.org/10.1590/1679-78251901
Pages
2910-2218
Volume
13
Issue
11
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Funder
The authors appreciate the financial support of the National Natural Science Foundation of China (No. 51178044), Beijing Higher Education Young Elite Teacher Project (YETP0340) and Beijing Excellent Talent Training Program (2013D009006000005).
Recommended Citation
Liu, Yang; Chang, Ching-Shung; and Wu, Shun-Chuan, "A Simple One-Scale Constitutive Model for Static Liquefaction of Sand-Silt Mixtures" (2016). Latin American Journal of Solids and Structures. 814.
https://doi.org/10.1590/1679-78251901