Based on the geological characteristics of the deep outburst seam in Pingmei No. 12 Mine, and in response to the need for pressure relief mining in the VI-15 outburst coal seam without a conventional protective seam, a theory of full rock protection seam mining is proposed, which designs the full rock layer or thick dirt band coal seam as the protective seam; aiming at the high equipment damage rate in full coal seam mining with thick dirt band, the rapid cutting of coal and rock is achieved using the pre-splitting blasting softening treatment process for the hard rock. Secondly, aiming the large amount of gangue produced during the full rock protection seam mining, a coal gangue underground separation system is arranged based on the working conditions. An integrated equipment for underground separation is developed for coal mines deeper than one kilometer. Finally, an inhibitor is used to treat the gangue, and the underground filling process is studied. In order to reduce the ground subsidence, the full seam mining and partial filling method is adopted, achieving optimal economic benefits. a safe and green development mode for deep outburst mines, which has certain reference value for the development of similar mines.
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