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分析了煤柱工作面顶板岩层运动的特点及支承压力分布情况,总结了梨树煤矿防治煤柱工作面顶板事故的方法。
The characteristics of roof strata movement and supporting pressure distribution of coal pillar face are analyzed, and the method of preventing and controlling roof accident of coal pillar face in Lishu Coal Mine is summarized.