A Quantitative Prediction of Occurrence Risk of Outbursts of Coal and Gas with SimBurst-a Coupled Numerical Simulator
An outburst of coal and gas in underground coal mines may occur when stress condition and coal failure combine with rapid gas desorption.A mechanical and fluid coupled numerical simulator, SimBurst, has been developed to simulate the initiation process of the outburst, as a first step to model the whole process of the outburst.This paper describes the simulator and a simple model set up to model the initiation of an outburst in roadway excavation to illustrate the methodology and approach with the SimBurst.The model simulated the basic features of an outburst initiation process, including coal deformation, pore pressure and principal stress vector redistribution, yield and tensile failure zone of coal, and a quantitative relationship among critical gas content, stress regime and coal strength.
Outburst Numerical simulator SimBurst
Xue Sheng Wang Yucang Xie Jun
CSIRO Earth Science and Resource Engineering, PO Box 883, Kenmore, QLD, Australia 4069
国内会议
合肥
英文
32-38
2010-05-29（万方平台首次上网日期，不代表论文的发表时间）