崔木煤矿21301工作面压架突水原因及防治

Reason and Prevention of Support Crushing and Water Inrush Disaster at NO.21301 Working Face in Cuimu Coal Mine

针对崔木煤矿21301工作面压架突水,研究了冒落带与上部延安组顶板和直罗组砂岩含水层富水区沟通,导水裂隙带与上部白垩系洛河组含水层导通,对下部含水层形成补给。分析了突水灾害发生的原因,通过采取严格控制采高、实施间隔放煤、加强超前支护等措施,来避免压架突水事故。相关经验措施可以为崔木煤矿类似受压架突水威胁工作面的顺利回采提供参考和借鉴。

According to the disaster of support crushing and Cuimu coal mine. In the disaster, caving zone connects the sandstone of Zhiluo Formation containing much water, which water inrush at NO.21301 working face in upper Yan＇ an Formation in the roof and caused fissure water belt to connect with the upper cretaceous Luohe formation aquifer, which is the primary mechanism of the accident of the support crushing and water inrushing. Based on the causes of the accident, adopted following measures such as analysis of water hazard feature of emission mechanism, strict control of mining height, implementation of interval caving, strengthening the advance support measures, and so on to avoid such accidents. Finally, reversed the passive situation in which a succession of exploitation exists there in Cuimu coal mine.