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In view of the current situation of 3# coal seam with large thickness, high gas pressure and content, weak coal seam, poor permeability and serious coal and gas dynamic disasters in the mining area, this paper combs and deeply analyzes the gas geological occurrence law and the characteristics of gas dynamic disasters in Hancheng mining area. The research results show that the gas disaster of 3# coal seam in Hancheng mining area is mainly the instantaneous outburst caused by the structural stress based on the high ground stress and the mining stress concentration, and the creep time-delay Outburst under the quasi-static load based on the high ground stress will occur in some abnormal soft areas. Based on this, the paper puts forward to strengthen the geological exploration work, and to prevent and control the coal and the coal from the aspects of gas drainage and stress removal The technical thinking of gas outburst disaster provides theoretical guidance for the prevention and control of gas dynamic disaster in mining area.

Analysis of Outburst Disaster Characteristics and Countermeasures of 3# Coal Seam in Hancheng Mining Area