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

Yi Liu; Guoqing Cai; Annan Zhou; Bowen Han; Jian Li; Chengang Zhao

doi:10.1016/j.compgeo.2021.104032

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

Yi Liu
, Guoqing Cai^*
, Annan Zhou
, Bowen Han
, Jian Li
, Chengang Zhao

^*Corresponding author for this work

Beijing Jiaotong University
Royal Melbourne Institute of Technology University

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

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.

Original language	English
Article number	104032
Journal	Computers and Geotechnics
Volume	133
DOIs	https://doi.org/10.1016/j.compgeo.2021.104032
State	Published - May 2021
Externally published	Yes

Keywords

Constitutive model
Non-isothermal
Temperature
Thermo-hydro-mechanical
Unsaturated soils

Access to Document

10.1016/j.compgeo.2021.104032

Cite this

@article{edf97fa5047843b5a6f5365fa2757a23,

title = "A fully coupled constitutive model for thermo-hydro-mechanical behaviour of unsaturated soils",

abstract = "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.",

keywords = "Constitutive model, Non-isothermal, Temperature, Thermo-hydro-mechanical, Unsaturated soils",

author = "Yi Liu and Guoqing Cai and Annan Zhou and Bowen Han and Jian Li and Chengang Zhao",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = may,

doi = "10.1016/j.compgeo.2021.104032",

language = "英语",

volume = "133",

journal = "Computers and Geotechnics",

issn = "0266-352X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A fully coupled constitutive model for thermo-hydro-mechanical behaviour of unsaturated soils

AU - Liu, Yi

AU - Cai, Guoqing

AU - Zhou, Annan

AU - Han, Bowen

AU - Li, Jian

AU - Zhao, Chengang

PY - 2021/5

Y1 - 2021/5

N2 - 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.

AB - 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.

KW - Constitutive model

KW - Non-isothermal

KW - Temperature

KW - Thermo-hydro-mechanical

KW - Unsaturated soils

UR - https://www.scopus.com/pages/publications/85101421631

U2 - 10.1016/j.compgeo.2021.104032

DO - 10.1016/j.compgeo.2021.104032

M3 - 文章

AN - SCOPUS:85101421631

SN - 0266-352X

VL - 133

JO - Computers and Geotechnics

JF - Computers and Geotechnics

M1 - 104032

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this