沿空留巷锚杆支护技术研究及应用  

Research and application of bolt support technology for gob-side entry retaining

作　　者：权景伟[1] 柏建彪[1] 种道雪[2] 王襄禹[1] 

机构地区：[1]中国矿业大学 [2]微山金源煤矿,山东微山277600

出　　处：《煤炭科学技术》2006年第12期60-61,68,共3页Coal Science and Technology

基　　金：国家自然科学基金资助项目(50574089)

摘　　要：分析沿空留巷巷内支护存在的问题,从提高巷道围岩自身强度及巷内支护对顶板支撑力出发,提出了沿空留巷巷内采用锚杆支护技术。工程应用表明,锚杆支护巷道沿空留巷,有效切落了采空区侧顶板,减小了巷旁支护体载荷;沿空留巷维护效果表明,该技术在留巷期间有效控制了巷道变形,提高了沿空留巷围岩整体稳定性。The paper analyzed the problems existing in the support system of gob-side entry retaining. From the surrounding rock self strength of the mining gateway and the support to the roof support forces, the paper proposed the gob-side entry retaining to use bolt sup- port technology. The project application cases showed that the gob-side entry retaining with bolt support could effectively cut the side roof of the gob-sides and reduce the loading of the support devices. The maintenance results of the gob-side entry showed that the technology could effectively control the gateway deformation during the gob-side entry retaining and could improve the stability of the surrounding rock of the gob-side entry retaining.

关 键 词：沿空留巷 锚杆支护 巷旁支护 切顶 

分 类 号：TD322[矿业工程—矿井建设]