Fold Catastrophe Model and Chaotic Mechanism of Coal and Gas Outburst
For simplified analytic model of coal and gas outburst in coal heading face, this paper pays much attention to the TPEF (Total Potential Energy Function) of the system. From the analyses of TPEF, the authors conclude that the model belongs to fold catastrophe model and can be used to deduce the suddenly changing conditions of coal and gas outburst. Furthermore, based on the dynamic model of system evolvement, the relationship between influence of outside environment and response of the system is found and defined to be a complicated nonlinear process. When the influence of system itself is equivalent to that of outside environment, chaotic phenomenon will occur in the evolving process of system and the way to chaos is realized with bifurcation of period doublings.
coal and gas outburst fold catastrophe chaos
ZHAO Zhigang ZHANG Lijun TAN Yunliang CHENG Guoqiang
Institute of Resource and Environment, Shandong University of Science and Technology, Qing Dao 26651 Institute of Resource and Environment, Shandong University of Science and Technology, Qing Dao 26651
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
1334-1339
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）