摘要
基于某矿近距离煤层群软煤岩动压巷道整体失稳问题,运用现场实测、数值模拟和理论分析相结合的方法,研究了近距离煤层群条件下软煤岩动压巷道变形破坏机理,提出了近距离煤层群软煤岩动压巷道的支护对策,确定了"高预紧力锚网索联合支护+单体支柱"临时加强支护技术,并确定了联合支护的参数和工艺。
Based on the problem of overall instability of soft coal dynamic pressurized roadway in closed distance seam group of an coal mine, the deformation and failure mechanism of soft coal dynamic pressurized roadway in closed distance seam group was analyzed through the method of combining field measurement numerical simulation and theoretical analysis, then the supporting measures of soft coal dynamic pressurized roadway in closed distance seam group was put forward, which is combined support of higher pretension bol- ting wire mesh and single prop temporary reinforced timbering, and the parameter and process of combined support is also determined.
出处
《煤矿安全》
CAS
北大核心
2014年第2期66-69,共4页
Safety in Coal Mines
关键词
软煤岩巷道
动压巷道
数值模拟
联合支护
巷道支护
soft coal roadway
dynamic pressure roadway
numerical simulation
combined support
roadway support
