摘要
以干河煤矿2^(#)煤层2-3011巷为背景,通过现场实测、数值模拟等手段,探究提高单根锚杆支护效能的措施,确定锚杆、锚索的最优布置参数,通过矿压监测验证优化方案的可行性,结果表明:优化条件下,掘巷期间和工作面回采期间巷道围岩稳定性好,掘进速度提高1.4倍,在经济、安全、技术等方面均取得很好效益。
Taking Lane 2-3011 of No.2 Coal Seam in Ganhe Colliery as the background,through field measurement,numerical simulation and other means,the paper explores the measures to improve the support efficiency of single bolt,determines the optimal layout parameters of bolt and anchor cable,and verifies the feasibility of the optimization scheme through rock pressure monitoring,whose results show that under the optimized conditions,the surrounding rock stability of the roadway is good during roadway driving and mining of the working face,the driving speed is increased by 1.4 times,which achieves good economic,safe and technical benefits.
作者
陈晓宁
Chen Xiaoning(Ganhe Colliery,Shanxi Coking Coal Huozhou Coal Power Group,Linfen,Shanxi 041602)
出处
《江西煤炭科技》
2023年第1期67-70,共4页
Jiangxi Coal Science & Technology
关键词
半煤岩巷道
锚网索支护
现场实测
数值模拟
掘进速度
semi coal and rock roadways
bolt-mesh-anchor support
field measurement
numerical simulation
driving speed
