大同矿区“三硬”煤层巷道煤壁整体推出型冲击地压发生机理的研究  

Research on the rock burst mechanism of coal tunnel wall being pushing out overall in Datong coal mining area′s "three hard" coal roadway

作　　者：王旭宏[1,2] 康立勋[1] 杨双锁[1] 

机构地区：[1]太原理工大学矿业工程学院,山西太原030024 [2]太原理工大学阳泉学院,山西阳泉045000

出　　处：《中国矿业》2009年第7期96-98,共3页China Mining Magazine

基　　金：2007年山西省高校科技研究开发项目"‘三硬'煤层条件下冲击地压控制理论及技术研究"资助(项目编号:2007158)

摘　　要：建立了大同矿区"三硬"煤层巷道煤壁整体推出型冲击地压的数学力学模型,研究了整体推出型冲击地压发生的力学机理。认为在煤层与顶板已经离层的条件下,发生煤体整体移动所需的垂直应力的值很小,易发生煤体被挤出、整体向外移动的现象。By establishing the mathematical model about the rock burst type of coal wall overall being pushed out in ＂three hard＂ coal roadway of Datong Coal Mining Area,the writer studied the mechanism of this type.Under the condition of having separated the seam and roof,the occurrence of coal as a whole to be moved and of having the vertical stress is very small,because it′s possible to happen that the coal is vulnerably squeezed out and moved outward as a whole.

关 键 词：“三硬”煤层 整体推出型 冲击地压 发生机理 

分 类 号：TD322.2[矿业工程—矿井建设]