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Full-Text Articles in Geotechnical Engineering
Mechanical Properties And Damage Constitutive Model Of Coal Under The Coupled Hydro-Mechanical Effect, Bo-Bo Li, Zhong-Hui Wang, Chong-Hong Ren, Yao Zhang, Jiang Xu, Jian-Hua Li
Mechanical Properties And Damage Constitutive Model Of Coal Under The Coupled Hydro-Mechanical Effect, Bo-Bo Li, Zhong-Hui Wang, Chong-Hong Ren, Yao Zhang, Jiang Xu, Jian-Hua Li
Rock and Soil Mechanics
In order to explore the impact of moisture on the mechanical properties of coal, the triaxial compression tests of raw coal with different moisture contents are carried out by using the triaxial servo-controlled seepage equipment for thermal-hydro- mechanical coupling in coal containing methane. Based on elastic damage mechanics, the damage variables of coal with different moisture contents are deduced, and the damage constitutive model of coal under hydro-mechanical coupling is established, the deformation characteristics of coal with different moisture contents are obtained. The results show that: (1) the deformation and failure process of coal under different moisture contents are similar, …