Numerical Simulation and Inversive Study of Gas Flow Field Around Coal Bed Borehole
Using bore gas flux inverse analysis gains coal bed gas flow equation on the basis of coal bed gas occurrence and flow theory, gas radial flow differential equation, using large scale finite element analytical software ANSYS analyse the stress of bore, and gain the stress distributing graph of and further analyze the stress had an impact on coal bed air permeability coefficient and the various rule of gas pressure and coefficient of permeability distribution following stress around bore and gas pressure gradient impacts on gas flow. It has real meaning to gas evacuation, coal mine safety design and coal-bed gas development.
inversion flow field penetration factor depressurization belt
Xiaoyan SONG Zhongpeng XIE
Safely Engineering College, North China Institute of Science and Technology, Beijing,101601, China Resource and Environmental Engineering Institute, China University of Mining and Ttechnology, Beijin
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
1355-1361
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）