回采动压影响巷道底鼓防治  

Prevention of Floor Heave in Roadway Influenced by Dynamic Pressure Induced by Mining

作　　者：李志刚[1] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京100013

出　　处：《煤矿开采》2012年第5期52-54,47,共4页Coal Mining Technology

基　　金："十一五"国家科技支撑计划资助项目(2008BAB36B01)

摘　　要：针对某矿工作面巷道受回采动压影响发生底鼓的具体情况,分析了巷道底鼓的主要原因,设计了巷帮加强支护与新开卸压槽联合控制底鼓的措施,通过现场工程试验,解决了工作面巷道底鼓严重的问题,总结了巷道加固段底鼓防治的效果,为该类巷道底鼓治理提供了成功的施工经验。防治结果表明:巷道无措施加固段底鼓量是巷道加固试验段底鼓量的1.7倍,有效降低底鼓变形量47%。This paper analyzed main causes of roadway floor heave influenced by dynamic pressure in mining period and designed combined projection of strengthening roadway-side supporting and excavating pressure-relief groove.Practice showed that floor heave value of reinforcement segment reduced 1.7 times and effectively reduced 47% floor heave value.This projection dissolved serious floor heave problem and provided successful experience for roadway floor heave prevention.

关 键 词：动压影响 底鼓 卸压槽 锚杆锚索 井下试验 

分 类 号：TD353[矿业工程—矿井建设]