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Construction Technology with 2# Return Airflow Dip Passing Collapse Pillar in South No.2 Mining Area of Tunliu Coal Mine
Pages: 6-7
Year: Issue:  1
Journal: COAL

Keyword:  陷落柱短掘短支膨胀泥岩;
Abstract: 屯留矿井南二采区2#回风下山过陷落柱施工中,采用锚网喷临时超前支护,U29型钢扶棚永久支护,短掘短支,同时截住耙矸机后巷道涌水和控制住工作面施工用水,防止膨胀泥岩遇水泥化,是成功穿过陷落柱的关键之一,着重介绍过陷落柱的施工方法和注意事项.
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