煤巷顶板岩层结构变化的可靠性锚杆支护设计

Design on reliability bolt support base on roof strata structure variation of seam gateway

针对神东矿区锚杆支护煤巷顶板事故频发的现场实际,采用新型顶板岩层结构探测仪对矿区保德煤矿88302综采面回风巷顶板岩层结构进行探测并进行顶板岩层结构划分。运用UDEC3.0平面分析软件对不同岩层结构类型顶板稳定性进行了模拟分析,在此基础上根据顶板岩层结构变化情况对神东矿区保德煤矿88302综采面回风巷顶板进行了补强支护设计,达到了有效遏制锚杆支护煤巷冒顶事故发生的目的。

According to the site actual conditions of roof accidents occurred in the bolt support seam gateway in Shendong Mining Area, a new type roof strata structure probe was applied to probe and classify the roof strata structures of the return air way in the No.88302 mechanized coal mining face of Baode Mine.The plane analysis software UDEC3.0 was applied to analyze the stability of the different strata structure roof.Base on the above and according to the variation conditions of the roof strata structure, an re...