Control effect of structure environment to coal and gas outburst in Pingdingshan mining area

The topography and geomorphology and tectonic evolution characteristics in Pingdingshan mining area were studied under plate tectonics and geo-dynamic division theory to obtain the formation mechanism and spatial distribution characteristic. The results showed that the Pingdingshan mining area is subjected to the south-to-north downthrust and collision by Qinling orogenic belt, and thus the depression belt formed, bordered by Jiaxian, Xiangjia and Luye normal faults. The middle uplift and N font geomorphology in Pingdingshan mining area have structure environment to cause mine dynamic disasters such as coal and gas outburst. The III level and IV level active faults divided by geo-dynamic division controlled the macro-distribution of coal and gas outburst, and the V level active faults determined the local distribution characteristics. The mine No. 12 was divided into four tectonic divisions, which controlled coal and gas outburst occurrence.