龙峰煤业9号煤层水害分析与防治技术

Analysis and Prevention Measures of Water Disaster in No.9 Coal Roof of Longfeng Mine

根据矿井水文地质条件和实际情况,分析9号煤层上覆3号煤采空区积水和K5、K6灰岩含水层富水性,设计疏放水钻孔,在9号煤层工作面顺槽布置钻场,钻孔窜层通过K_(5)、K_(6)灰岩,终孔探至3号煤层采空区,探测并疏放含水层及空区积水,有效消除了9号煤层顶板含水层和上覆3号煤层采空区积水对矿井安全生产的水害威胁。

According to the hydrogeological conditions and actual situation of the mine,the ponding in the overlying No.3 coal goaf of No.9 coal seam and the water abundance of K5 and K6 limestone aquifers are analyzed,and the drainage boreholes are designed.The drilling yard is arranged along the channel in the worKing face of No.9 coal seam.The drilling channeling passes through K5 and K6 limestone,and the final hole is explored to the goaf of No.3 coal seam to detect and drain the ponding in the aquifer and goaf.The No.9 coal seam roof aquifer and the ponding in the overlying No.3 coal seam goaf have effectively eliminated the threat of water damage to mine safety production.