华北型煤田岩溶水突水模式及承压煤层安全开采的技术措施研究

Study on the Water Breakthrough Model and the Technical Measures for the Safe Mining of Confined Coal Seam in North China Type Coal Field

华北型煤田煤系基底为碳酸盐岩岩溶裂隙含水层,含水层有着厚度大、富水性强、水压大等特性,对承压煤层的开采造成了严重的威胁。特别当遇到导水构造时容易造成突水事故。因此,研究岩溶水的突水模式及承压煤层开采安全技术措施,对解放受岩溶水威胁的煤炭资源有着重要的意义。

The basement of coal measures in North China type coalfield is carbonate karst fissure aquifer.Aquifer has the characteristics of large thickness,rich water,high water pressure and so on,which poses a serious threat to the exploitation of the confined coal seam.The water inrush accident is easy to happen when the water guiding structure is encountered.Therefore,it is of great significance to study the water inrush pattern of karst water and the safety technical measures of confined coal seam mining to liberate coal resources threatened by karst water.