摘要
针对铺龙湾矿高应力复合顶板8103运输巷围岩变形量大的问题,采用现场钻孔窥探得到顶板岩层性质及破坏特征,提出采用全锚索支护方式提高围岩稳定性。根据数值模拟巷道顶帮全锚索支护后应力分布情况,确定全锚索支护参数,通过现场监测支护后巷道围岩可知,全锚索支护能够有效解决高应力复合顶板条件下巷道围岩变形大的问题。
Aiming at the large surrounding rock deformation in 8103 transport lane with high-stress compound roof in Pulongwan Colliery,the paper presents the application of the full-cable support method according to the roof strata properties and failure characteristics through on-site drilling peeping,including the stress distribution after full-cable support through numerical simulation and the support parameters,whose field application monitoring shows it can effectively solve the problem of large surrounding rock deformation under high-stress compound roof.
作者
刘晓龙
Liu Xiaolong(Shanxi Pulongwan Coal Industry Co.,Ltd.,Datong,Shanxi037100)
出处
《江西煤炭科技》
2023年第3期83-85,89,共4页
Jiangxi Coal Science & Technology
关键词
复合顶板
全锚索支护
破坏特征
应力分布
compound roof
full-cable support
failure characteristics
stress distribution
