锚栓网带矸石袋墙沿空留巷技术及其应用  

Gob-side Entry Retaining Technology of Gangue Bags Wall with Anchor Bolt Net and Its Application

作　　者：林东才[1] 贾传洋[1] 栾恒杰[1] 王冠赵 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590

出　　处：《山东科技大学学报（自然科学版）》2015年第2期1-6,共6页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51109124)

摘　　要：针对矸石袋墙沿空留巷技术存在矸石袋压缩空间大、沿空留巷后围岩变形大等问题,建立沿空留巷围岩力学模型,结合无煤柱沿空留巷"大、小结构"理论,提出锚栓网带矸石袋墙沿空留巷技术。利用矸石袋相互重叠垒砌形成整面的墙体,墙体外侧铺设金属网,锚栓与防护钢带双向紧固墙体,使得墙体受力均匀、紧凑性强,提高矸石袋墙的抗压能力和整体支护性能,从而解决原有矸石袋墙沿空留巷技术所存在的问题。王楼煤矿现场应用表明,该技术缓解了煤矿采掘接替紧张局面,延长了矿山服务年限,经济效益和社会效益显著。To solve problems in gob side entry retaining technology of gangue bag wall such as the large compression space of gangue bags and the serious surrounding rock deformation after the gob-side entry retaining, a mechanical model for surrounding rock of gob-side entry retaining was established, and gob-side entry retaining technology of gangue bag wall with anchor bolt was put forward based on the ＂large-small structure＂ theory. Gangue bags were overlapped to form a whole wall and metal meshes were laid outside the wall to guarantee the uniform stress and the high compactness of the wall. In this way the existing problems discussed above could be solved by improving the anti-compression capacity and overall support performance of the gangue bag wall. The field application of this technology in Wanglou Mine indicates that this technology can alleviate the tense situation of coal mining and development replacement, extend coal mine＇s length of service and bring remarkable economic and social benefits.

关 键 词：沿空留巷 锚栓 矸石袋 支护阻力 

分 类 号：TD325[矿业工程—矿井建设]