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针对布尔台煤矿22103回采巷道在回采过程中顶板离层以及片帮现象严重,通过数值模拟主应力方向偏转不同角度时,顶板围岩塑性区的分布特征,揭示巷道的变形破坏特征规律。
According to the distribution characteristics of plastic zone of surrounding rock of roof in 22103 mining roadway in Bo’er Tai Coal Mine during the process of mining, the characteristics of deformation and failure of the roadway are revealed by numerical simulation of deflection of main stress at different angles.