摘要
论文针对试验工作面回采巷道的具体地质特征,在借鉴实施锚索二次耦合支护的最佳空间距离为距迎头25~30 m的基础上,提出了掘进期间实施锚网索耦合支护及回采期间采取分级加强超前支护的方案并进行了相应的工程试验,试验结果表明：该方案能够有效保证回采巷道掘进与回采期间的稳定性,巷道围岩变形基本可以控制在正常使用的要求范围之内。
According to the concrete geological characteristics of mining roadway of the trial mining face,based on referencing the best space distance from the tunneling face is 25~30m when implementing anchor re-coupling support,the paper puts forward implementing anchor re-coupling support during tunneling and taking the scheme of grade strengthen advance support during stopping,and carrying out corresponding engineering experiment,the results show that the scheme effectively guarantees the stability of mining gateway during stopping and tunneling,the deformation of the surrounding rock in tunnel is basically controled within the scope of the normal using requirement.
出处
《矿冶》
CAS
2010年第3期18-20,共3页
Mining And Metallurgy
关键词
回采巷道
分级加强超前支护
耦合支护
mining gateway
grade strengthen advance support
coupling support
