LIU Baoxian &XIAN Xuefu & JIANG Deyi (Department of Civil Construction, Sichuan Institute of Science and Technology, Chengdu 610039, China) (Institute of Mining Engineering Physics, Chongqing University, Chongqing 400044, China) (Key Lab. For the Exploitation of Southwestern resources & the Environmental Disaster Control Engineering, Ministry of Education, China)
<正> The menace of coal and gas delay outburst is very serious in China. The mechanism of coal and gas delay outburst is studied with nonlinear theory - catastrophe theory in the paper. It is concluded that the delay time of coal and gas delay outburst is produced by the combination of geostresses, gas inside coal, physics-mechanics characters of coal and external action (explosion). According to the above research, the way of preventing coal and gas delay outburst is presented.
coal and gas delay outburst; catastrophe; prevention;
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