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Abstract Through the analysis of Niu’erzhuang Mine deep mountain green coal mining area environment, hydrogeology partition was done to big green water-bearing stratum in the coalfield, ruling out the big green with the grey aquifer hydraulic connection. With field plate failure monitoring technique and numerical simulation technology, the deep mountain green coal mining area floor deformation of the maximum damage depth was settled as 18 m. Using the safety thickness of water-resisting layer and water inrush coefficient method of quasi safety evaluation under pressure mining of mining area, a set of prevention and control of water in mining the deep mountain green coal belt press technology was set up, and was successfully carried out in 56805 working face, which realized deep mountain green coal mining under multiple water disasters, released raw coal 180 855t.
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