A micro-mechanical study of granular soil liquefaction during dynamic excitations

被引：0
|
作者：
Zeghal, Mourad [1 ]
El Shamy, Usama [1 ]
机构：
[1] Rensselaer Polytech Inst, Troy, NY USA
来源：
Geomechanics and Geotechnics of Particulate Media | 2006年
关键词：
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A fully coupled continuum-discrete hydromechanical model is employed to analyze the dynamic response of saturated granular soils. The fluid motion was idealized using averaged Navier-Stokes equations and the discrete element method was employed to model the solid particles. Well established semi-empirical relationships were used to quantify the fluid-particle interactions. Numerical simulations were conducted to investigate the liquefaction mechanisms of level sites and sloping grounds when subjected to a dynamic base excitation. The outcome of these simulations was consistent with experimental observations and revealed valuable information on the micro-mechanical characteristics of soil liquefaction and associated loss of stiffness and strength.
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页码：233 / 236
页数：4
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