地面顺层钻进在煤层底板高压岩溶水害区域超前治理中的应用
发布时间：2018-08-09 12:03
【摘要】：朱庄煤矿深部采区太原组灰岩含水层具有高承压、强富水、补给充沛、无垂直分带性、存在强径流带和垂向导水通道、与奥灰有水力联系等特点,自6煤开采以来多次发生底板灰岩突水事故,最大涌水量1 400 m3/h,严重威胁矿井的安全生产。Ⅲ631工作面回采过程中发生多次灰岩涌水,针对Ⅲ631工作面水文地质条件及底板水害特征,通过引入石油领域地面水平井钻探工艺,采用地面顺层水平井和侧钻分支水平井钻探手段对涌水段及未采段进行精确有效探查,再结合高效的地面高压注浆控制工艺,对探查到的涌水通道及原生溶隙、构造裂隙等进行注浆改造,完成了工作面涌水快速封堵及区域超前治理。
[Abstract]:The limestone aquifer of Taiyuan formation in deep mining area of Zhuzhuang coal mine is characterized by high bearing pressure, strong water enrichment, abundant recharge, no vertical zonation, strong runoff zone and vertical guide water channel, and hydraulic connection with Ordovician ash. Since No. 6 coal mining, there have been many water inrush accidents of floor limestone, the maximum water inflow is 1 400 m3 / h, which seriously threatens the safe production of coal mine. There are many limestone water gushing in the mining process of 鈪，
本文编号：2174016
[Abstract]:The limestone aquifer of Taiyuan formation in deep mining area of Zhuzhuang coal mine is characterized by high bearing pressure, strong water enrichment, abundant recharge, no vertical zonation, strong runoff zone and vertical guide water channel, and hydraulic connection with Ordovician ash. Since No. 6 coal mining, there have been many water inrush accidents of floor limestone, the maximum water inflow is 1 400 m3 / h, which seriously threatens the safe production of coal mine. There are many limestone water gushing in the mining process of 鈪，
本文编号：2174016
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