摘要
为解决深部高应力动压巷道维护的技术难题,本文以某矿113下09工作面深部动压影响巷道为背景,提出了"高强预应力锚杆+让压结构"的有效技术方案,确定了合理支护参数。采用预应力让压锚杆进行支护后,使动压作用下巷道围岩稳定性提高,具有明显的技术经济和社会效益。
In order to solve the technical problems of the maintenance of deep high stress dynamic pressure roadway.This paper bases on the deep high stress dynamic pressure roadway of NO.113L09 working face.The effective technical scheme of the high strength pre-stressed anchor and yield structure is proposed, and the reasonable parameters are determined.The stability of surrounding rock is improved with the pre-stressed yield bolt obviously,and the way have obvious economic and social benefits.
出处
《煤矿现代化》
2015年第4期136-137,共2页
Coal Mine Modernization
关键词
深部
动压巷道
让压支护
deep
dynamic pressure roadway
yield support
