窄煤柱大跨度巷道挂绳注浆加固技术应用  

Application of Grouting Reinforcement Technology for Long Span Roadway with Narrow Coal Pillars

作　　者：赵伟 Zhao Wei(Xin’an Coal Industry Co., LTD., Zaozhuang Mining Group, Shandong Zaozhuang 27764)

机构地区：[1]枣庄矿业集团新安煤业有限公司,山东枣庄277642

出　　处：《山东煤炭科技》2018年第9期22-23,共2页Shandong Coal Science and Technology

摘　　要：窄煤柱大跨度巷道受回采过程中周期来压和采动叠加应力影响,巷道下沉,两帮移近量大,甚至会出现顶板冒落事故,将影响工作面正常生产。通过采取巷道挂绳喷浆、注浆,构建均质同性围岩体,进一步强化煤柱体的高强度固结,有效控制了巷道变形,确保了工作面快速推进及施工安全。The narrow pillar long-span roadway is affected by periodic weighting and mining superposition stress in the process of mining, large amounts of sinking, large two-sided displacement will arise for closer, and even roof caving accidents will occur, which will affect the normal production of the working face. By adopting hang rope shotcrete roadway, grouting, construction of homogeneous gay rock, the coal column high consolidation strength will be strengthened further, which effectively controls the deformation of roadway, and ensures that the face of rapid advance and construction safety.

关 键 词：巷道 挂绳 注浆 加固 

分 类 号：TD353[矿业工程—矿井建设]