Abstract:
In order to investigate the zonation of coal and gas outburst, the method of gas geological units division, tectonic stress analysis, comparison analysis of geological factors were used to discuss this problem. Besides, gas geological characteristic was elaborated, the distribution regularity of outburst was discoursed, multiple geological factors which control the zonation of outburst was analyzed. The results show that the coal seams had an obvious zonation of outburst. It is concluded that outburst has a zonation in northeast wing of Guozhuang anticline and the stress is the most concentrated area. The partitions differences of geological factors such as coal thickness, inclination angle of coal seam, tectonic coal and other factors are the reasons of tectonic stress inhomogeneity in different part of folds.