A Revisiting of Undrained Shear Banding in Water-Saturated Sand

被引：0
|
作者：
Guo, Peijun [1 ]
机构：
[1] McMaster Univ, Dept Civil Engn, Hamilton, ON L8S 4L7, Canada
来源：
ADVANCES IN BIFURCATION AND DEGRADATION IN GEOMATERIALS | 2011年
基金：
加拿大自然科学与工程研究理事会;
关键词：
Shear band; Incipient localization; Saturated sand; Isochoric constraint; Dilatancy; FAILURE; MEDIA;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The paper revisits the analysis of undrained shear banding in water saturated sand. By taking into account the coupling between potential volume change and excess pore water pressure as well as the continuity of stresses and pore pressure across the shear band, it is theoretically shown that incipient localisation may take place in loose sand but is precluded for dense sand under undrained conditions. The undrained shear band orientation primarily depends on the Poisson's ratio and the dilatancy characteristics of the material. Numerical examples are given to demonstrate the variation of shear band inclination with void ratio and the initial consolidation pressure.
引用
收藏
页码：301 / 307
页数：7
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