采矿与安全工程学报Issue(4)：650-656,7.
岩浆侵入对煤与瓦斯突出的控制作用研究
Controlling effect of magmatic intrusion on coal and gas outburst
摘要
Abstract
In this paper, learning from the formation mechanism of magmatic rock in Qidong Coal Mine, we analyzed the distribution characteristics of magmatic rock intrusion, and the influence of magmatic rock intrusion to coal structure, the cause and distribution of tectonic coal, and abnormal gas occurrence, and illustrated the control function of rock intrusion to coal and gas outburst.The results show that the magmatic rock mainly intruded along the upper coal seam, which can change the lithology of partial coal seam roof and form a dense gas barrier layer, leading to significantly abnormal vertical zonation in coal and coal property, and the increase of the secondary hydrocarbon gas content, both of which control the abnormal gas occurrence. Tectonic movements were accompanied by magmatic activ-ity, which has formed the concentration area of tectonic coal and local stress. The stress analysis shows the central air-return roadway is nearly SN direction.The angle between the maximum principal stress and roadway is large, and the coal stress of roadway in the drilling process is high, then the tectonic coal has formed. Meanwhile, the ability of tectonic coal to resist the external destruction is small, resulting in frequency occurrence of dynamic phenomena in the region.关键词
岩浆侵入/煤体结构/构造煤/瓦斯赋存/煤与瓦斯突出Key words
magmatic rock intrusion/coal structure/tectonic coal/gas occurrence/coal and gas outburst分类
矿业与冶金引用本文复制引用
雷东记,赫少攀,李恒乐,郭晓洁..岩浆侵入对煤与瓦斯突出的控制作用研究[J].采矿与安全工程学报,2014,(4):650-656,7.基金项目
国家“十二五”科技重大专项课题项目(2011ZX05040-005)；河南理工大学博士基金项目(648089)；河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地外部开放基金项目(WS2013A11)；河南省教育厅科学技术重点研究项目(14A44008) （2011ZX05040-005）
