Evolution of geological structure and its control to coal-gas outburst in Pingdingshan coal district

The Pingdingshan coal district is a large-scale collieries in China, where the coal-gas outburst disaster has taken place for more than 90 times, and becomes more serious with the increasing in mining depth. Using theories of the plate tectonics and the regional tectonic evolution, the characteristic of the district tectonics and control of deformed coal to coal-gas-outburst in the Pingdingshan were studied in the paper. The results show that there is obvious feature of area-like and zone-like distribution with coal-gas outburst disaster and even serious outburst proneness mine, the area of coal-gas outburst proneness zones is less than 10% total area distributing coal seam, and primarily controlled by squeezing and shearing geological function and the deformed coal. And complex tectonic area units and simple tectonic area units are classed into, and the coal-gas outburst proneness areas are divided into.