A fully coupled constitutive model for thermo-hydro-mechanical behaviour of unsaturated soils

被引：22

作者：

Liu, Yi ^{[1
]}

Cai, Guoqing ^{[1
]}

Zhou, Annan ^{[2
]}

Han, Bowen ^{[3
]}

Li, Jian ^{[3
]}

Zhao, Chengang ^{[3
]}

机构：

[1] Beijing Jiaotong Univ, Key Lab Urban Underground Engn Minist Educ, Beijing 100044, Peoples R China

[2] RMIT Univ, Sch Engn, Discipline Civil & Infrastruct Engn, Melbourne, Vic 3001, Australia

[3] Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China

来源：

COMPUTERS AND GEOTECHNICS | 2021年 / 133卷

基金：

中国国家自然科学基金;

关键词：

Constitutive model; Thermo-hydro-mechanical; Temperature; Non-isothermal; Unsaturated soils; VOLUME CHANGE BEHAVIOR; WATER-RETENTION CURVES; THERMOMECHANICAL BEHAVIOR; SATURATION SPACE; TEMPERATURE; SUCTION; STRESS; PRESSURE; BENTONITE; CLAY;

D O I：

10.1016/j.compgeo.2021.104032

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This work presents a fully coupled constitutive model for thermo-hydro-mechanical behaviour of unsaturated soils. This model, with 18 parameters, can consider the primary features of unsaturated soils, such as mechanical responses at various temperatures and matric suctions, drying/wetting behaviour (water retention curves and volumetric strain) at various temperatures and net stresses, and thermal volumetric behaviour at various matric suctions. A numerical example on a drained heating-drying-isotropic loading-wetting path is used to show the basic properties and performance of the proposed model. Finally, the proposed model is validated against experimental data for temperature/suction-controlled isotropic tests, temperature-controlled wetting-drying tests, suction-controlled heating-cooling tests and temperature/suction-controlled triaxial tests.

引用

页数：22

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