A Thermo-Hydro-Mechanical Finite Element Model with Freezing and Thawing Processes in Saturated Soils for Geotechnical Engineering

Tianyuan Zheng, Xing-Yuan Miao*, Dmitri Naumov, Haibing Shao, Olaf Kolditz, Thomas Nagel

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Freezing and thawing of soil are dynamic thermo-hydro-mechanical (THM) interacting coupled processes, and have attracted more and more attention due to their potentially severe consequences in geotechnical engineering. In this article, a fully-coupled thermo-hydro-mechanical freezing (THM-F) model is established for advanced system design and scenario analysis. The model is derived in the framework of the Theory of Porous Media (TPM), and solved numerically with the finite element method. Particularly, the derivation of theoretical aspects pertaining to the governing equations, especially including the thermo-mechanical decomposition treatment of the solid phase is presented in detail. Verification examples are provided from purely freezing (T-F), THM, and THM-F perspectives. Attention is paid to the heat and mass transfer, thermodynamic relations and the formation of frost heave. The migration of pore fluid from the unfrozen zone to the freezing area, and the blockage of pore space by ice lenses within the porous media are studied. The model is able to capture various coupled physical phenomena during freezing, e.g. the latent heat effect, groundwater flow alterations, as well as mechanical deformation.
Original languageEnglish
JournalEnvironmental Geotechnics
Number of pages40
ISSN2051-803X
DOIs
Publication statusAccepted/In press - 2019

Cite this

@article{f5ce307166fa4c19b4d400add4905331,
title = "A Thermo-Hydro-Mechanical Finite Element Model with Freezing and Thawing Processes in Saturated Soils for Geotechnical Engineering",
abstract = "Freezing and thawing of soil are dynamic thermo-hydro-mechanical (THM) interacting coupled processes, and have attracted more and more attention due to their potentially severe consequences in geotechnical engineering. In this article, a fully-coupled thermo-hydro-mechanical freezing (THM-F) model is established for advanced system design and scenario analysis. The model is derived in the framework of the Theory of Porous Media (TPM), and solved numerically with the finite element method. Particularly, the derivation of theoretical aspects pertaining to the governing equations, especially including the thermo-mechanical decomposition treatment of the solid phase is presented in detail. Verification examples are provided from purely freezing (T-F), THM, and THM-F perspectives. Attention is paid to the heat and mass transfer, thermodynamic relations and the formation of frost heave. The migration of pore fluid from the unfrozen zone to the freezing area, and the blockage of pore space by ice lenses within the porous media are studied. The model is able to capture various coupled physical phenomena during freezing, e.g. the latent heat effect, groundwater flow alterations, as well as mechanical deformation.",
author = "Tianyuan Zheng and Xing-Yuan Miao and Dmitri Naumov and Haibing Shao and Olaf Kolditz and Thomas Nagel",
year = "2019",
doi = "10.1680/jenge.18.00092",
language = "English",
journal = "Environmental Geotechnics",
issn = "2051-803X",
publisher = "I C E Publishing",

}

A Thermo-Hydro-Mechanical Finite Element Model with Freezing and Thawing Processes in Saturated Soils for Geotechnical Engineering. / Zheng, Tianyuan ; Miao, Xing-Yuan; Naumov, Dmitri ; Shao, Haibing ; Kolditz, Olaf ; Nagel, Thomas.

In: Environmental Geotechnics, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - A Thermo-Hydro-Mechanical Finite Element Model with Freezing and Thawing Processes in Saturated Soils for Geotechnical Engineering

AU - Zheng, Tianyuan

AU - Miao, Xing-Yuan

AU - Naumov, Dmitri

AU - Shao, Haibing

AU - Kolditz, Olaf

AU - Nagel, Thomas

PY - 2019

Y1 - 2019

N2 - Freezing and thawing of soil are dynamic thermo-hydro-mechanical (THM) interacting coupled processes, and have attracted more and more attention due to their potentially severe consequences in geotechnical engineering. In this article, a fully-coupled thermo-hydro-mechanical freezing (THM-F) model is established for advanced system design and scenario analysis. The model is derived in the framework of the Theory of Porous Media (TPM), and solved numerically with the finite element method. Particularly, the derivation of theoretical aspects pertaining to the governing equations, especially including the thermo-mechanical decomposition treatment of the solid phase is presented in detail. Verification examples are provided from purely freezing (T-F), THM, and THM-F perspectives. Attention is paid to the heat and mass transfer, thermodynamic relations and the formation of frost heave. The migration of pore fluid from the unfrozen zone to the freezing area, and the blockage of pore space by ice lenses within the porous media are studied. The model is able to capture various coupled physical phenomena during freezing, e.g. the latent heat effect, groundwater flow alterations, as well as mechanical deformation.

AB - Freezing and thawing of soil are dynamic thermo-hydro-mechanical (THM) interacting coupled processes, and have attracted more and more attention due to their potentially severe consequences in geotechnical engineering. In this article, a fully-coupled thermo-hydro-mechanical freezing (THM-F) model is established for advanced system design and scenario analysis. The model is derived in the framework of the Theory of Porous Media (TPM), and solved numerically with the finite element method. Particularly, the derivation of theoretical aspects pertaining to the governing equations, especially including the thermo-mechanical decomposition treatment of the solid phase is presented in detail. Verification examples are provided from purely freezing (T-F), THM, and THM-F perspectives. Attention is paid to the heat and mass transfer, thermodynamic relations and the formation of frost heave. The migration of pore fluid from the unfrozen zone to the freezing area, and the blockage of pore space by ice lenses within the porous media are studied. The model is able to capture various coupled physical phenomena during freezing, e.g. the latent heat effect, groundwater flow alterations, as well as mechanical deformation.

U2 - 10.1680/jenge.18.00092

DO - 10.1680/jenge.18.00092

M3 - Journal article

JO - Environmental Geotechnics

JF - Environmental Geotechnics

SN - 2051-803X

ER -