峰峰矿区深部煤层开采水害问题及防治对策

The Problem of Water Disaster in Deep Coal Seam Mining in Fengfeng Mining Area And Its Prevention And Control Measures

为了解决峰峰矿区深部煤层开采奥灰突水问题,分析峰峰矿区深部煤层开采的地质和水文地质条件及面临的水害问题,指出深部煤层开采奥灰突水的途径和特点及目前防治水技术存在的不足之处;对深部煤层开采奥灰突水机理进行了研究;提出全面探查、区域治理、煤层底板注浆加固、分区隔离开采、增加矿井排水能力等深部煤层开采防治水技术途径。实践证明:煤层底板构造全面探查、区域治理是最有效的防治深部煤层开采奥灰突水的技术。

To solve the problem of water inrush from Ordovician limestone in deep seam mining of Fengfeng Mining Area,the geological and hydrogeological conditions of deep seam mining in Fengfeng Mining Area and the problems of water disaster the paper are analyzed,as well as the ways and characteristics of water inrush from Ordovician limestone in deep seam mining and the shortcomings of current water control technology are pointed out.The mechanism of water inrush from Ordovician limestone in deep seam mining is studied,and the prevention and control technologies of water disaster in deep coal seam mining are proposed,such as the comprehensive exploration,regional control,grouting and reinforcement of coal seam floor,isolated mining in different areas and increasing the drainage capacity of the mine.The practice has proved that the comprehensive exploration of coal seam floor structure and regional control are the most effective technologies to prevent water inrush from Ordovician limestone in deep coal seam mining.