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Abstract Mining protective layer can effectively reduce or even eliminate the danger of be protective layer coal and gas outburst. In order to find out the influence of Six Coal Mine mining on the protective layer after layer, adopt the method of in-situ test and comparative analysis, the 丁5-6 - 21032 working face during the tunneling of coal seam roof and floor, gas, hydrology, settlement and other geological data for further analysis. Results show that after mining protective layer, the be protective layer is obvious disturbance, the occurrence of gas and the original energy effectively release, but the roof integrity is still very good, no obvious prominent symptom.
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