CAJ | 학술논문

针对朱集西煤矿外水仓巷道因围岩较破碎，巷道压力显现明显，造成巷道严重底鼓、顶板下沉、巷道全断面内缩、反复修护的现象，分析巷道破坏特征及原因，简述了中空注浆锚索在外水仓的应用，利用锚索锁具预紧、端头锚固，实现了锚注一体，提高了锚索的承载力和支护效果。通过中空注浆锚索加固后，使巷道两帮和顶底板移近量明显减小，顶板深部离层得到了有效控制，节约了用于二次支护和补强支护的成本。
침대주집서매광외수창항도인위암교파쇄，항도압력현현명현，조성항도엄중저고、정판하침、항도전단면내축、반복수호적현상，분석항도파배특정급원인，간술료중공주장묘색재외수창적응용，이용묘색쇄구예긴、단두묘고，실현료묘주일체，제고료묘색적승재력화지호효과。통과중공주장묘색가고후，사항도량방화정저판이근량명현감소，정판심부리층득도료유효공제，절약료용우이차지호화보강지호적성본。
Aiming at the phenomenon of broken surrounding rock of outside sump, obvious roadway pressure, serious floor heave, sinking roof, section shrinkage and repeated repairing in Zhujixi Colliery, the paper analyzes the characteristics and causes of broken roadway, describes the application of grouted hollow anchor bar in out- side sump, using bar of locks preload and fix anchor ends to realize bolting integration, which improves the ca- pacity of bar and supporting effects, reduces the convergence from both sides, roof and floor, controls roof deep leaving layer and saves the costs of second support and supplement support.