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A fully coupled thermo-hydro-mechanical model including the determination of coupling parameters for freezing rock
Huang, Shibing1,3; Liu, Quansheng2; Cheng, Aiping1; Liu, Yanzhang1; Liu, Guofeng4
2018
Source PublicationINTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
ISSN1365-1609
Volume103Issue:-Pages:205-214
AbstractThe freeze-thaw damage of rock is mainly induced by cycling loading of pore ice pressure and thermal stress under coupled thermo-hydro-mechanical (THM) condition at low temperature. The accuracy and correctness of coupled T-H-M model for freezing rock are controlled by critical parameters including unfrozen water content, ice pressure, permeability, and the equivalent thermal conductivity. The difference of THM coupling process between freezing rock and freezing soil is the evolution rule of those critical parameters, which change drastically with freezing temperature. The permeability is related to the unfrozen water content and high enough to be considered at the temperature above -5 degrees C. Combining numerical experiment with mixture theory, the equivalent thermal conductivity of freezing rock is also studied which is proved to be well expressed by exponential weighted mean model. Then the governing equations for THM coupling of freezing rock under low temperature are deduced based on energy conservation law, mass conservation law and the principle of static equilibrium considering water/ice phase transition. Those equations include the effects of seepage velocity and latent heat of phase transition on heat transfer, the influences of segragation potential and volume strain on water flow, and the impacts of temperature and pore water/ice pressure on frost heaving strain. Compared with a famous coupled THM laboratory test conducted by Neaupane and Yamabe, the proposed THM model has a good prediction of heat conductivity and frost heaving strain for freezing rock.
KeywordUnfrozen water Ice pressure Permeability Thermal conductivity Freezing rock
DOI10.1016/j.ijrmms.2018.01.029
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Mining & Mineral Processing
WOS SubjectEngineering, Geological ; Mining & Mineral Processing
WOS IDWOS:000425532300021
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/4233
Collection岩土力学所知识全产出_期刊论文
国家重点实验室知识产出_期刊论文
Affiliation1.Wuhan Univ Sci & Technol, Sch Resources & Environm Engn ;
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ;
3.Hubei Key Lab Efficient Utilizat & Agglomerat Met ;
4.Changan Univ, Sch Highway
Recommended Citation
GB/T 7714
Huang, Shibing,Liu, Quansheng,Cheng, Aiping,et al. A fully coupled thermo-hydro-mechanical model including the determination of coupling parameters for freezing rock[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2018,103(-):205-214.
APA Huang, Shibing,Liu, Quansheng,Cheng, Aiping,Liu, Yanzhang,&Liu, Guofeng.(2018).A fully coupled thermo-hydro-mechanical model including the determination of coupling parameters for freezing rock.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,103(-),205-214.
MLA Huang, Shibing,et al."A fully coupled thermo-hydro-mechanical model including the determination of coupling parameters for freezing rock".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 103.-(2018):205-214.
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