摘要
巷道在掘进过程中易受到工作面开采扰动和保护煤柱附近围岩应力集中的影响。为了合理控制巷道围岩变形,结合2-560掘进工作面巷道的现场情况,通过实地调研和钻孔窥视,对巷道围岩变形特征进行分析并对巷道围岩进行强化支护设计。监测数据表明:采用“高强树脂锚杆+锚索”联合支护方案,能够保证回采巷道在其服务期限内正常使用。
In view of the influence of mining disturbance and the stress concentration of surrounding rock near the protective coal pillar on the mining roadway,the author analyzes the deformation characteristics of the roadway surrounding rock and proposes the combined support scheme with high-strength-resin-bolt-and-anchor-cable according to the on-site conditions of the mining roadway at the 2-560 fully mechanized working face,which can reasonably control the surrounding rock deformation and ensure the normal use of the mining roadway within its service life.
作者
高振华
Gao Zhenhua(Xinzhi Colliery,Huozhou Coal and Electricity Group Co.,Huozhou,Shanxi 031412)
出处
《江西煤炭科技》
2021年第4期33-35,共3页
Jiangxi Coal Science & Technology
关键词
动压巷道
围岩控制
锚网索联合支护
钻孔窥视
dynamic pressure roadway
surrounding rock control
bolt-net-cable combined support
hole throughahole
