Development and validation of THM coupling model of methane-containing coal  

作　　者：Tao Yunqi Xu Jiang Liu Dong Liang Yongqing 

机构地区：[1]State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing University [2]State and Local Joint Engineering Laboratory of Methane Drainage in Complex Coal Gas Seam,Chongqing University

出　　处：《International Journal of Mining Science and Technology》2012年第6期868-872,共5页矿业科学技术学报（英文版）

基　　金：supported in part by the State Key Basic Research Program of China(No.2011CB201203);the General Project of the National Natural Science Foundation of China(No.50974141);the Key Project of the National Natural Science Foundation of China(No.50534080);the Key Special Subjects National Science and Technology of China(No.2011ZX05034-004)

摘　　要：Based on nine necessary basic assumptions for THM coupling model,this research comprehensively applied the theories of elastic mechanics,seepage mechanics and heat transfer,and established a real three-field and two-way coupled mathematical model to reveal the connections among seepage field,deformation field and temperature field within the system of methane-containing coal.In comparison between numerical and analytical solutions,the coupling modeling for THM of methane-containing coal was proved to be correct by model application in the physical simulation experiment of coal and gas outburst.The model established in this paper was the improvement of traditional seepage theory of methane-containing coal and fluid-solid coupled model theory,which can be widely used in prevention of coal and gas outburst as well as exploitation of coal bed methane.Based on nine necessary basic assumptions for THM coupling model,this research comprehensively applied the theories of elastic mechanics,seepage mechanics and heat transfer,and established a real three-field and two-way coupled mathematical model to reveal the connections among seepage field,deformation field and temperature field within the system of methane-containing coal.In comparison between numerical and analytical solutions,the coupling modeling for THM of methane-containing coal was proved to be correct by model application in the physical simulation experiment of coal and gas outburst.The model established in this paper was the improvement of traditional seepage theory of methane-containing coal and fluid-solid coupled model theory,which can be widely used in prevention of coal and gas outburst as well as exploitation of coal bed methane.

关 键 词：COAL containing METHANE Temperature FIELD SEEPAGE FIELD Stress FIELD Fluid-solid-heat coupling 

分 类 号：TD712[矿业工程—矿井通风与安全]