Test study on shear strength of unsaturated soils

被引：0
|
作者：
Department of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China [1 ]
不详 [2 ]
机构：
来源：
Gongcheng Lixue | 2009年 / 11卷 / 140-144期
关键词：
Shear strength - Soil testing - Soil mechanics;
D O I：
暂无
中图分类号：
TU4 [土力学、地基基础工程];
学科分类号：
081401 ;
摘要：
In order to verify the suction constitution in unsaturated soils, some un-hygroscopic tests are designed and performed. The testes are classified into four different types including common triaxial tests, pressure plate & common triaxial tests, pressure plate & GDS triaxial tests and natural air drying & common triaxial tests. The results indicate that the friction angle related to unsaturation can be greater than that induced by net normal stress in a higher saturation state and the strength increment induced by unsaturation is linear to matric suction in a lower saturation state. Failure occurs distinctly in a slope for unsaturated soil samples but this is not true for the saturated one.
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