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结合安源煤矿实际条件,运用实验室力学试验与FLAC3D数值模拟相结合的方法,分析不同含水率下煤体物理力学性质的变化,研究了含水率改变对煤壁稳定性的影响,得到含水率与力学参数的函数关系、不同含水率下煤壁稳定性情况及合理的注水含水率值。研究结果用于指导现场注水工作,取得显著效果。
Combined with the actual conditions of Anyuan Coal Mine, the paper uses the combination of laboratory mechanics test and FLAC3D numerical simulation to analyze the change of physical and mechanical properties of coal under different water cut, and studies the influence of water cut on the stability of coal wall. As a function of the mechanical parameters, the stability of the coal wall at different water contents and the reasonable value of the water content of the water. The results of the study are used to guide on-site water injection work and achieve remarkable results.