An elastoplastic hydro-mechanical model for unsaturated soils

被引：0
|
作者：
Sun, De'an [1 ]
Xiang, Li [1 ]
机构：
[1] Shanghai Univ, Dept Civil Engn, 149 Yanchang Rd, Shanghai 200072, Peoples R China
来源：
COMPUTATIONAL SCIENCE - ICCS 2007, PT 3, PROCEEDINGS | 2007年 / 4489卷
关键词：
unsaturated soil; elastoplastic model; water-retention curve; suction; triaxial test;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This paper presents a coupled elastoplastic, constitutive model for predicting the hydraulic and stress-strain-strength behaviour of unsaturated soils. Hydraulic hysteresis in the water-retention behaviour is modeled as an elastoplastic process with the elastic region of the saturation degree. The effect of change in degree of saturation on the stress-strain-strength behaviour and the effect of change in void ratio on the water-retention behaviour are taken into consideration in the model, in addition to the effect of suction on the hydraulic and mechanical behaviour. Model predictions of the stress-strain and water-retention behaviour are compared with those obtained from triaxial tests on unsaturated soil along isotropic compression, triaxial stress paths with or without variation in suction.
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页码：1138 / +
页数：2
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