摘要
针对山西大同晋华宫煤矿11^#煤层8714工作面运输巷在掘进期间出现片帮、底鼓等严重矿压显现现象,采用理论分析和数值模拟等方法,探讨了煤层群底部煤层巷道围岩变形破坏机理,并提出了相应的控制技术。
According to the problems of rib spalling and heaving floor and serious mine pressure behavior phenomenon occurred during the excavation of 8714 haulage roadway in 11^#coal seam of Jinhuagong Mine,methods of theoretical analysis and numerical simulation were adopted in this paper. The failure mechanism of roadway surrounding rock below coal seam group was firstly studied,and then the corresponding control technologies were proposed.
出处
《煤矿安全》
CAS
北大核心
2016年第7期84-87,共4页
Safety in Coal Mines
基金
山东省"泰山学者"建设工程专项经费资助项目
国家自然科学基金资助项目(51574154
51344009)
山东省优秀中青年科学家科研奖励基金资助项目(BS2012NJ007)
矿山灾害预防控制省部共建国家重点实验室培育基地开放课题基金资助项目(MDPC2013KF12)
关键词
煤层群
围岩变形
片帮
底鼓
数值模拟
运输巷
coal seam group
surrounding rock deformation
rib spalling
heaving floor
numerical modeling
transportation roadway
