How do fabric and dilatancy affect the strength of granular materials

被引：0
|
作者：
Wan, R. G. [1 ]
Al-Mamun, M. [1 ]
Guo, P. J. [1 ]
机构：
[1] Univ Calgary, Dept Civil Engn, Calgary, AB T2N 1N4, Canada
来源：
PROCEEDINGS OF THE 16TH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND GEOTECHNICAL ENGINEERING, VOLS 1-5: GEOTECHNOLOGY IN HARMONY WITH THE GLOBAL ENVIRONMENT | 2005年
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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 explores the role of dilatancy on the shear strength of a granular material by highlighting both of its particulate nature and microstructure. A fabric embedded stress dilatancy equation is used in an elastoplastic model to demonstrate fabric-dilatancy related sand behaviour. The importance of dilatancy is highlighted by examining sand response along loading paths other than drained and undrained conditions. It is found that the strength of sand is not at all bounded by the ones obtained in drained and undrained conditions. It turns out that lower strengths are encountered under strain paths with forced dilation or compaction. This is confirmed by microstructural observations made on a granular assembly of photoelastic particles loaded biaxially.
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收藏
页码：863 / 868
页数：6
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