开采扰动区断层水患防治
Journal of Xi'an University of Science and Technology（2015）
Abstract
富水断层采动活化诱发涌水溃沙是地下煤矿开采中面临的典型隐蔽性动力灾害源之一,预测断层水患对安全开采具有现实必要性.文中通过对宁东矿区羊场湾煤矿的现场水文地质与开采技术条件调研与分析,总结得出该矿开采扰动区断层分布广泛,隐蔽性强,最大落差约32. 0 m,最大涌水100. 0 m3/h,最大含沙量12. 0%,围岩易风化.采用综合防治技术,成功安全快速穿越了宁东矿区羊场湾煤矿12采区断层开采区域,保障了采掘接续和安全生产,为后期深部断层区开采诱发水患及灾害链防控提供了可靠适用方法,根据开采扰动区断层水渗流演化规律,为后期深部断层区开采诱发水患及灾害链防控提供了可靠应对方法.
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Key words
water-rich fault,water-inrush and sediment disaster,drainage and hydraulic pressure relief,comprehensive prevention
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