Using broad sense Mises criterion to lead out the width of plasticity district of coal mass and calculation formula of the vertical stress, analyze mechanism of rib fall of coal wall and put forward corresponding measure of prevention and cure.
运用广义Mises准则导出了考虑中间主应力的煤体塑性区宽度和垂直应力的计算公式，分析了煤壁片帮破坏机理，并提出了相应的煤壁片帮的防治措施。
参考来源 - 大采高综采围岩控制与支架适应性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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