Volumetric strain and strength behavior of frozen soils under confinement

被引：53

作者：

Zhang, Shujuan ^{[1
]}

Lai, Yuanming ^{[1
]}

Sun, Zhizhong ^{[1
]}

Gao, Zhihua ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China

来源：

COLD REGIONS SCIENCE AND TECHNOLOGY | 2007年 / 47卷 / 03期

基金：

中国国家自然科学基金;

关键词：

frozen soils; volumetric variation; cross-sectional variation; stress-strain curve; strength behavior;

D O I：

10.1016/j.coldregions.2006.10.001

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Triaxial compression tests of frozen sand and silty clay were conducted under confining pressures varying between 0.0 and 18.0 MPa, at temperatures of -4 and -6 degrees C, and a strain-rate of 1.67 x 10(-4) s(-1). The results show that the volume of the specimen nonlinearly changes with axial deformation, and cross-section (modified by the volumetric value) of specimen has large influence on stress-strain curve pattern and compressive strength. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：263 / 270

页数：8

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