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A HYDRO-MECHANICAL-CHEMICAL COUPLING MODEL FOR GEOMATERIAL WITH BOTH MECHANICAL AND CHEMICAL DAMAGES CONSIDERED

文献类型：期刊论文

作者Shao, Jianfu1; Feng, Xiating2; Xiao, Haibin3; Hu, Dawei1,2; Zhou, Hui2; Hu, Qizhi2,4
刊名ACTA MECHANICA SOLIDA SINICA
出版日期2012
卷号25期号:4页码:361-376
关键词hydro-mechanical-chemical coupling mechanical damage chemical damage sandstone chemical kinetics
ISSN号0894-9166
DOI10.1016/S0894-9166(12)60033-0
英文摘要A general framework of hydro-mechanical-chemical coupling model is proposed for geomaterial subjected to the dual effects of mechanical loading and chemical degradation. Mechanical damage due to microcracks in solid matrix and chemical damage induced by the increase of porosity clue to dissolution of matrix minerals as well as their interactions are considered. A special model is proposed for sandstone. The reaction rate is formulated within the framework of mineral reaction kinetics and can thus take into account different dissolution mechanisms of three main mineral compositions under different pH values. The increase of porosity is physically defined by the dissolution of mineral composition and the chemical damage is related to the increase of porosity. The mechanical behavior is characterized by unified plastic damage and viscoplastic damage modeling. The effective stress is used for describing the effect of pore pressure. The elastic parameters and plastic evolution as well as viscoplastic evolution are dependent on chemical damage. The advection, which is coupled with mechanical damage and chemical damage, is considered as the dominant mechanism of mass transfer. The application of model proposed is from decoupled experiments to fully coupled experiment. The model offers a convenient approach to describing the hydro-mechanical-chemical coupled behavior of geomaterial.
WOS研究方向Materials Science ; Mechanics
语种英语
WOS记录号WOS:000309620100004
出版者ELSEVIER SCIENCE INC
源URL[http://119.78.100.198/handle/2S6PX9GI/3361]  
专题岩土力学所知识全产出_期刊论文
岩土力学所知识全产出
国家重点实验室知识产出_期刊论文
作者单位1.Univ Lille 1, CNRS;
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ;
3.Lancang River Hydropower Co Ltd
4.Hubei Univ Technol, Sch Civil Engn & Architecture ;
推荐引用方式
GB/T 7714		 Shao, Jianfu,Feng, Xiating,Xiao, Haibin,et al. A HYDRO-MECHANICAL-CHEMICAL COUPLING MODEL FOR GEOMATERIAL WITH BOTH MECHANICAL AND CHEMICAL DAMAGES CONSIDERED[J]. ACTA MECHANICA SOLIDA SINICA,2012,25(4):361-376.
APA Shao, Jianfu,Feng, Xiating,Xiao, Haibin,Hu, Dawei,Zhou, Hui,&Hu, Qizhi.(2012).A HYDRO-MECHANICAL-CHEMICAL COUPLING MODEL FOR GEOMATERIAL WITH BOTH MECHANICAL AND CHEMICAL DAMAGES CONSIDERED.ACTA MECHANICA SOLIDA SINICA,25(4),361-376.
MLA Shao, Jianfu,et al."A HYDRO-MECHANICAL-CHEMICAL COUPLING MODEL FOR GEOMATERIAL WITH BOTH MECHANICAL AND CHEMICAL DAMAGES CONSIDERED".ACTA MECHANICA SOLIDA SINICA 25.4(2012):361-376.

入库方式： OAI收割

来源：武汉岩土力学研究所

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