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焦作矿区属典型的华北型石炭二叠纪岩溶煤田，矿井水害严重．煤层底板之下的３层岩溶含水层是由孔隙介质和裂隙介质组成的双重结构含水体，是矿井主要充水水源．占主导地位的裂隙介质包括微裂隙、小裂隙、大裂隙和巨裂隙，不同规模的裂隙对岩溶水渗流起到不同作用．对巨型和大型裂隙网络建立非连续介质裂隙网络三维渗流模型，而对小裂隙和微裂隙连同孔隙建立连续介质的渗透张量模型，两类模型耦合成双重介质三维裂隙网络渗流模型，可以很好地刻画矿区岩溶水渗流和突水特征．
Jiaozuo Mining Area is a typical North China type Permian Karst coalfield, mine water damage. The three-layer karst aquifer beneath the coal seam floor is a double-structure aquifer composed of porous media and fractured media, which is the main source of water for the mine. The dominant fractured media include micro-fractures, small fractures, large fractures and giant fractures. Fissures of different sizes play different roles in the seepage of karst water. The establishment of three-dimensional seepage model of discontinuous medium fracture network for giant and large fractured networks, and the establishment of continuous medium permeability tensor model for small fractures and micro-fractures together with pores, the two models can be coupled into a dual media three-dimensional fracture network seepage model, which can be very good Describe the characteristics of karst water seepage and water inrush in mining area.