According to the analysis for failure reasons of vertical shaft wall in Linhuan Coal Mine, its main reason is longitudinal load produced by negative frictional force.
分析临涣煤矿区竖井井壁破坏的原因，主要是由负摩擦力产生的纵向荷载引起的。
According to the analysis for failure reasons of vertical shaft wall in Linhuan Coal Mine, its main reason is longitudinal load produced by negative frictional force.
分析临涣煤矿区竖井井壁破坏的原因，主要是由负摩擦力产生的纵向荷载引起的。
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