河南千秋煤矿水害特征与防治技术

千秋煤矿多种水害并存：在井田浅部,矿井主要水害为地表水、小窑水;随着采掘活动向深部转移,矿井主要水害亦转为顶板砂砾岩水。在总结该矿水文地质条规件及水害特征的基础上,分析了矿井的充水因素,近而提出了不同水害的防治措施：小窑水和地表水,应采用充填小煤矿河床采场与地表塌坑和裂缝,封填小煤窑井筒,建筑防水闸墙,地面瞬变电磁勘探圈出疑似积水区域,并进行钻孔验证,然后再进行疏放等措施;顶板砂砾岩水,可采用井上、下物探圈出富水和构造区域,进行采前钻孔预疏放,完善排水系统等措施。

Water Hazard Features and Controlling Techniques in Qianqiu Coalmine, Henan

The Qianqiu coalmine has multiple water hazards： in the shallow part of the minefield, water hazards are mainly from Surface water and small coalmine water; along with mining deepening, mainly roof sandstone and conglomerate water. Based on sumup of the coalmine hydrogeological condition and water hazard features, analyzed eoalmine water filling factors, and then provided controlling measures for different water hazards. To small eoalmine water, should fill up channel mining sites and surface subsided hollows and fissures, close up small coalmine shafts, construct water proof dam, using surface transient electromagnetic prospecting and circle out suspected ponding areas, then drilling verifying, carry out dewatering and other measures. To roof sandstone and conglomerate water can use surface and underground geophysical prospecting and circle out water rich and structure developed areas, carry out measures including pre-mining borehole preliminary dewatering, perfecting water drainage system etc.