Evaluation method for influence factors on gas content based on grey relational analysis

摘要：

　　Aiming at the current situation of 11-2 coal seam in Pansan Mine, which is prone to hazardous gas outbursts, through relational analysis and forecast, we have adopted the grey system theory and made a grey relational analysis of the influential factors on such outburst disasters, in order to improve accuracy and reliability of risk evaluation of gas outburst fatalness.Grey relational degree of every influence factors is obtained.Results show that Burial depth, main boundary fault distance and coal seam thickness have closest relationship with the gas content of 11-2 coal seam.Their relational degrees are far greater than 0.7.In this case, those three are the major factors affecting gas-bearing capacity in 11-2 coal seam.Moreover, sandstone-to-mudstone ratio and dip angle have poorer relationship with gas content compared with major factors, so they are the minor factors.

关键词： grey relational analysis relational degree gas content gas status geology structure

作者: ZHOU Xin-long TANG Jing SHI Bi-ming MU Chao-min

作者单位: School of Mining and Safety, Anhui University of Science and Technology, Huainan 232001, China;Key Laboratory of Safety and High-efficiency Coal Mining ,Ministry of Education, Anhui University of Science and Technology, Huainan 232001, China

会议类型: 国际会议

会议名称: International Mining Conference 2014(2014国际采矿论坛)

会议地点: 安徽淮南

会议语种:英文

页码: 422-426

在线出版日期: 2014-09-19（万方平台首次上网日期，不代表论文的发表时间）