Deformation Analysis for Coal and Gas Outburst Cavity
Outburst cavity formed during coal and gas outburst can be pear shaped,elliptical,or just like an irregularly elongated ellipsoid,its capacity is always smaller than the volume of ejected coal.And the gas emission quantity is almost 4 to l0 times as gas content in ejected coal.These are two different expressions of the same problem.To find the reasons for the decrease of outburst cavity volume and the increase of gas emission quantity per ton,by using the finite element code ANSYS,the damage zone and the failure zone of the outburst cavity were determined based on the static and dynamic combination method.In this paper,the reason for the decrease of the outburst volume was explained.
Coal and Gas Outburst Outburst Cavity Transient Dynamics Finite Element
Qianting Hu Wenbin Wu Guoqiang Cheng
National Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling,Chongqing,40 Key Laboratory of Mining Disaster Prevention and Control, Ministry of Education, ShandongUniversity
国际会议
台湾
英文
2607-2613
2011-12-11（万方平台首次上网日期，不代表论文的发表时间）