Analysis of coupled thermo-hydro-mechanical behavior of unsaturated soils based on theory of mixtures I

Qin, Bing; Chen, Zhenghan; Fang, Zhaosong; Sun, Shiqi; Fang, Xiangwei; Wang, Ju

doi:10.1007/s10483-010-1384-6

Cited by 5 publications

(3 citation statements)

References 26 publications

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“…In 1991, CHEN Zhenghan [22][23][24][25][26] established consolidation theory of unsaturated soil based on mixture theory. He considered the field equations of mixture theory as basic framework, and considered the constitutive equation based on constitutive relations as additional equation.…”

Section: Investigation Profile Of Consolidation Theory Of Unsaturated...mentioning

confidence: 99%

Overview of the Development of Consolidation Theory of Unsaturated Soils

Zhu

2013

AMR

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The consolidation theory and test results of unsaturated soils were summarized in detail in this article, which include the recent development. And some existent difficulties and problems for consolidation theory of unsaturated soil were also summarized. The consolidation theory of unsaturated soils have well applicable future, but the theory is not mature and need the investigators’ further research.

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Section: Investigation Profile Of Consolidation Theory Of Unsaturated...mentioning

confidence: 99%

Overview of the Development of Consolidation Theory of Unsaturated Soils

Zhu

2013

AMR

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“…Since the dry air and the dissolved air are both ideal gases and share the same temperature and chemical potential, other state variables (such as density and pressure) of the two phases are also identical [31] , i.e., ρ a = ρ aw , P a = P aw .…”

Section: Coupled Thermo-hygro-mechanical Damage Model For Concrete Sumentioning

confidence: 99%

Coupled thermo-hygro-mechanical damage model for concrete subjected to high temperatures

Liu

2012

Appl. Math. Mech.-Engl. Ed.

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Based on the theory of mixtures, a coupled thermo-hygro-mechanical (THM) damage model for concrete subjected to high temperatures is presented in this paper. Concrete is considered as a mixture composed of solid skeletons, liquid water, water vapor, dry air, and dissolved air. The macroscopic balance equations of the model consist of the mass conservation equations of each component and the momentum and energy conservation equations of the whole medium mixture. The state equations and the constitutive model used in the model are given. Four final governing equations are given in terms of four primary variables, i.e., the displacement components of soil skeletons, the gas pressure, the capillary pressure, and the temperature. The processes involved in the coupled model include evaporation, dehydration, heat and mass transfer, etc. Through the process of deformation failure and the energy properties, the mechanics damage evolution equations are established based on the principle of conversation of energy and the Lemaitre equivalent strain assumption. Then, the influence of thermal damage on the mechanical property is considered.

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“…Xiong et al [34][35] studied the dynamic response of the porous saturated elastic foundation under the action of elliptic cosine wave, load, and porosity anisotropy. Qin et al [36] studied the thermal-hydro-mechanical coupling characteristics of unsaturated soils.…”

Section: Introductionmentioning

confidence: 99%

Research on coupled thermo-hydro-mechanical dynamic response characteristics of saturated porous deep-sea sediments under vibration of mining vehicle

Wang

Shi

Huang

et al. 2021

Appl. Math. Mech.-Engl. Ed.

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The excessive deformation of deep-sea sediments caused by the vibration of the mining machine will adversely affect the efficiency and safety of mining. Combined with the deep-sea environment, the coupled thermo-hydro-mechanical problem for saturated porous deep-sea sediments subject to the vibration of the mining vehicle is investigated. Based on the Green-Lindsay (G-L) generalized thermoelastic theory and Darcy’s law, the model of thermo-hydro-mechanical dynamic responses for saturated porous deep-sea sediments under the vibration of the mining vehicle is established. We obtain the analytical solutions of non-dimensional vertical displacement, excess pore water pressure, vertical stress, temperature, and change in the volume fraction field with the normal mode analysis method, and depict them graphically. The normal mode analysis method uses the canonical coordinate transformation to solve the equation, which can quickly decouple the equation by ignoring the modal coupling effect on the basis of the canonical mode. The results indicate that the vibration frequency has obvious influence on the vertical displacement, excess pore water pressure, vertical stress, and change in volume fraction field. The loading amplitude has a great effect on the physical quantities in the foundation, and the changes of the physical quantities increase with the increase in loading amplitude.

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Analysis of coupled thermo-hydro-mechanical behavior of unsaturated soils based on theory of mixtures I

Cited by 5 publications

References 26 publications

Overview of the Development of Consolidation Theory of Unsaturated Soils

Overview of the Development of Consolidation Theory of Unsaturated Soils

Coupled thermo-hygro-mechanical damage model for concrete subjected to high temperatures

Research on coupled thermo-hydro-mechanical dynamic response characteristics of saturated porous deep-sea sediments under vibration of mining vehicle

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