中关铁矿水文地质条件研究及防治水技术实践

研究了中关铁矿水文地质条件,分析了矿床充水原因和地下水运动规律,重新梳理了各阶段水文地质勘探成果。根据现场实践,总结了矿山防治水的经验,提出应重点关注坑下局部构造带、破碎带、接触带、溶洞等薄弱地段,采用超深孔加强探防水,并进行有毒有害气体监测;应取消专门疏干放水孔,对井下揭露的涌水不封堵、直接疏导排放,起到辅助疏干、减少采场渗水、改善作业环境的作用。

Hydrogeological Conditions and Prevention Technology for Water-related Disasters in Zhongguan Iron Mine

Based on the investigation of the hydrogeological conditions of Zhongguan Iron Mine, the reasons for flooding of the deposits and the regularity of groundwater movement were analyzed and the hydrogeological and exploration results of each stage were reorganized. According to the on-site practice, experience of underground water control was summarized as follows: special attention should be paid to local structural belts, fracture zones, contact zones, caves and other areas with structural weakness; ultra-deep holes should be drilled to strengthen the waterproofing; toxic and harmful gases should be monitored; special drainage and discharge hole should be abolished; the water gust occurred and observed underground should be directly drained and discharged rather than being blocked off, so as to reduce the water seepage in the stope, leading to the improved working environment underground.