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基于皖北矿区恒源煤矿Ⅱ632工作面的地质条件,利用FLAC~(3D)数值模拟软件,研究了不同锚杆支护密度下巷道围岩的变形特征。数值模拟得到了Ⅱ632工作面巷道支护的最优解。将数值模拟得到的最优支护方案应用于Ⅱ632工作面,巷道围岩变形量得到控制,满足安全生产的要求。
Based on the geological conditions of Ⅱ632 working face of Hengyuan coal mine in northern Anhui, the deformation characteristics of the surrounding rock under different bolt supporting densities were studied by using FLAC 3D numerical simulation software. The optimal solution of roadway support in Ⅱ 632 working face is obtained by numerical simulation. The optimal support scheme obtained from numerical simulation is applied to Ⅱ 632 working face. The deformation of surrounding rock in the roadway is controlled to meet the requirements of safety production.