许疃井田位于安徽省宿州市西南部，临涣矿区的南端。
The Xutuan minefield is situated in southwestern part of Suzhou City, Anhui Province, at the south end of Linhuan mining area.
淮北临涣矿区的冲积层由三个隔水层和四个含水层组成。
The alluvial of Linhuan mine area in Huaibei consists of tour aquifers with three water resisting layers.
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。
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.
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