极限自稳平衡圈理论在巷道围岩控制中的应用  

Application of Ultimate Self-stable Circle Theory in Surrounding Rock Control of Roadway

作　　者：李万仕[1,2] 

机构地区：[1]陕西华彬煤业股份有限公司蒋家河煤矿,陕西彬县713500 [2]西安科技大学能源学院,陕西西安710054

出　　处：《中州煤炭》2015年第11期59-62,共4页Zhongzhou Coal

摘　　要：结合彬长矿区蒋家河煤矿二采区水仓工程地质特征,基于"底板—两帮—顶板"之间相互影响关系,运用巷道围岩极限自稳平衡圈理论,按照"治顶先治帮、治帮先治底、结合部是关键"原则,提出了"高强度锚网索支护+全断面注浆加固+帮顶喷射混凝土封闭围岩+底板锚索拉底+底板钢筋混凝土封底"综合支护方案。现场试验表明,支护方案安全可靠,能够有效控制巷道围岩破坏变形。Combined with the engineering and geological characteristics of sump at the second mining area of Jiangjiahe Coal Mine in Binchang mining area,based on the interaction of ＂ floor-rib-roof＂,the ultimate self-stable circle theory in roadway was applied. According to the rule of ＂ rib come first if roof will be controlled,floor come first if rib will be controlled,and junction is the key＂,a comprehensive supporting solution was put forward as ＂ high strength bolt-mesh-anchor supporting ＋ grouting reinforcement in whole section ＋sealing surrounding rock by sprayed concrete on rib and roof ＋ undercutting by anchor on floor ＋ bottom sealing by reinforced concrete on floor＂. By field test,it was shown that the supporting solution is safe and reliable and can control the deformation of roadway effectively.

关 键 词：极限自稳平衡圈 底板—两帮—顶板 注浆 拉底 喷射混凝土 

分 类 号：TD353[矿业工程—矿井建设]