期刊
COMPUTERS AND GEOTECHNICS
卷 133, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2021.104032
关键词
Constitutive model; Thermo-hydro-mechanical; Temperature; Non-isothermal; Unsaturated soils
类别
资金
- National Natural Science Foundation of China [51722802, U2034204, 51679004, 52078031]
- Natural Science Foundation of Beijing Municipality [8202038]
This work introduces a fully coupled constitutive model for the thermo-hydro-mechanical behavior of unsaturated soils, which considers key features of unsaturated soils and is validated against experimental data. The model is shown to exhibit basic properties and performance through a numerical example.
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.
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