Experimental study on stress-strain relationship of expansive mud-stone

被引：0

作者：

Li Hang-zhou ^{[1
]}

Liao Hong-jian ^{[1
,2
]}

Kong Ling-wei ^{[2
]}

Leng Xian-lun ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Dept Civil Engn, Xian 710049, Shaanxi, Peoples R China

[2] Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2007年 / 28卷 / 01期

关键词：

expansive mud-stone; strain softening; strength; shear speed ratio;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Based on strain control consolidated undrained triaxial tests, stress-strain relationship and strength characteristic of expansive mud-stone are investigated and analyzed. The results show that the stress-strain relationship appears strain softening, and joints in mud-stone are important factor that influences strength characteristic. Different failure modes have different stress-strain relationships. Furthermore, the results also show that the peak strength, residual strength and residual strength ratio change with variation of confining stress, and development of pore pressure has three stages. By controlling shear speed ratio of triaxial test, influences of shear speed ratio on the stress-strain relationships and strength characteristic are discussed.

引用

页码：107 / 110

页数：4