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Abstract After closure of adjacent mines, the goaf and underground roadway left by the closed mines will gather a large amount of water. Especially, the mine water after the closure of the old mining area is easy to flow into the adjacent production mines through the interconnected goaf and geological structure, which causes a serious threat to the adjacent production mines. Based on the actual geological and hydrogeological conditions of Tangjiazhuang Mine, Zhaogezhuang Mine, Linxi Mine and Lvjiatuo Mine adjacent to Guye Area of Kailuan Group, through grouting plugging and cutting off the boundary hydraulic connection of the closed and about to be closed mines, setting pump drainage to control the accumulated water level, and reforming the existing drainage system, the production mine is not threatened by the water damage of the adjacent closed mines, and the safe production is ensured. At the same time, part of the drainage system retained by the closed mine is used to supply water to other industrial enterprises on the ground to realize the reuse of mine water.
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