内蒙古大饭铺煤矿掘进工作面出水机理分析及防治水措施

Water inrush mechanism and its prevention and control at driving face in Dafanpu Coal Mine in Inner Mongolia

内蒙古大饭铺煤矿61111掘进工作面掘进至1156m处遇到断层,工作面发生涌水,造成运输巷掘进前方巷道冒顶,为明确出水水源及对工作面掘进的影响,进行了井下掘进工作面富水性探测和出水水源判别,对工作面掘进出水机理进行了分析,预计了工作面涌水量,在保证技术可行和生产安全的前提下,制定了防治水安全措施,为工作面顺利掘进提供依据。

The fault was encountered after driving forward 1156 m of 61111 working face in Dafanpu Coal Mine in Inner Mongolia, leading to the water inrush at the workface. The gradual increase of water inflow caused the roof collapse of haul roadway. In order to define the water source and the influence of water inrush on the driving face, the water flow was measured and the water source was judged. And then the water inrush mechanism was analyzed, and the water in- flow at the driving face was predicted. On the premise of feasible technology and production safe- ty, the measures for the prevention and control of water inrush were formulated, providing a ba- sis for the successful excavation of driving face.