孤岛工作面小煤柱沿空送巷围岩控制技术探讨  

Discussion on Surrounding Rock Control Technology of Small Coal Pillar Goaf Roadway in Isolated Island Working Face

作　　者：王华 Wang Hua(Ganhe Colliery,Shanxi Coke Coal Huozhou Coal Power Group Co.,Ltd.,Hongtong,Shanxi 041600)

机构地区：[1]山西焦煤霍州煤电集团干河煤矿,山西洪同041600

出　　处：《江西煤炭科技》2022年第4期80-82,86,共4页Jiangxi Coal Science & Technology

摘　　要：干河煤矿2-107工作面为孤岛工作面。为提高煤炭资源回收率,2-1072巷沿2-105采空区边缘掘进,存在相向采掘现象,需要考虑采动应力、侧向支承应力对巷道支护的影响。为降低巷道返修量,有效控制围岩变形,对区段煤柱留设进行理论分析、数值模拟,提出传统长短锚索与注浆锚索联合补强支护方案,确定合理煤柱尺寸与围岩控制方式。通过支护组合技术应用、矿山压力观测数据分析,探讨复杂条件下巷道快速支护围岩控制技术,为复杂条件下围岩控制提供参考。2-107 working face in Ganhe Colliery is an isolated island working face.In order to reduce the repair amount of the roadway and effectively control the deformation of the surrounding rock,the author carried out theoretical analysis and numerical simulation of the coal pillar setting in the section,proposes the combined reinforcement and support scheme of traditional long and short anchor cables and grouting anchor cables,and determines the reasonable coal pillar size and the surrounding rock control method,which provides reference for surrounding rock control under complex conditions.

关 键 词：小煤柱 沿空送巷 联合支护 注浆锚索 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]