摘要
跃进矿冲击矿压属于典型的底板冲击矿压,针对底板冲击严重巷道单独采用锚网索支护防冲效果不好的现象,提出"O"型棚+锚网索联合支护方式。运用数值模拟方法对锚网索支护和锚网索+"O"型棚支护两种不同支护方式的底板变形、应力分布等进行模拟和矿井巷道变形实时监测数据分析,监测结果表明,锚网索+"O"型棚联合支护结构具有抑制冲击矿压的作用,适合在具有冲击矿压危险的巷道推广使用。
The rock-burst of Yuejin Coal Mine belongs to typical rock-burst in floor strata. Aimed at a bad effect of bolt-wire mesh support for the roadways with serious floor outburst, the combined support by ＂O-shape shed and bolting-wire mesh＂ was put forward. The numerical simulation was used to study floor deformation, stress distribution and so on under two different supporting systems, and the real-time monitoring was carried out on the roadway deformation. The results showed that the combined support could inhibit the rock-burst and be widely applied to the roadways with rock-burst risk.
出处
《中国煤炭》
北大核心
2012年第3期49-51,共3页
China Coal
关键词
冲击矿压
“O”型棚+锚网索联合支护
数值模拟
变形监测
rock-burst, combined support by O-shape shed and bolting-wire mesh, numeri-cal simulation, deformation monitoring
