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在建立煤岩体变形和瓦斯流动方程的基础上,运用COMSOL Multiphysics数值模拟软件模拟了谢一矿C_(15)上保护层开采后下方的C_(13)被保护层应力分布和瓦斯运移规律,系统研究了上保护层开采后下伏煤岩体的位移分布特征、卸压瓦斯运移规律及瓦斯抽采情况,可为卸压瓦斯抽采钻孔布置提供参考。
Based on the deformation and gas flow equation of coal and rock mass, COMSOL Multiphysics numerical simulation software was used to simulate the stress distribution and gas migration of the C 13 protective layer beneath the C 15 protective layer in Xie Yi Mine , Systematically studied the displacement distribution characteristics of underlying coal and rock mass after mining the upper protective layer, the law of gas drainage under pressure relief and gas drainage, which can provide a reference for drilling arrangement of relief gas drainage.