锚杆加固巷道顶板稳定性潜力机理分析  

MECHANSIM OF STABILITY POTENTIAL OF BOLTED TUNNEL ROOF

作　　者：谭云亮[1] 王春秋[1] 顾士坦[1] 

机构地区：[1]山东科技大学力学与工程科学系,泰安271019

出　　处：《岩石力学与工程学报》2003年第z1期2210-2213,共4页Chinese Journal of Rock Mechanics and Engineering

基　　金：山东省自然科学基金(Y2000F06);山东省教育厅资助项目

摘　　要：从锚杆与岩体的复合作用分析出发,探讨了锚杆对岩体的增强机理;通过巷道顶板的脆性损伤分析,提出了锚杆加固巷道顶板稳定性的潜力分析力学模型,为锚杆加固巷道顶板的定量设计或加锚巷道顶板稳定性的定量评价提供了依据,从而突破了以往锚杆加固理论的框架,使得锚杆加固理论与加固定量设计得到了有机的统一。The technique of bolt reinforcement is widely applied,and it is important to estimate the stability of the bolted surrounding rocks of tunnel and the potential of bolt reinforcement reasonably. But there is no efficient theory to calculate the safety of the bolt reinforcement for rock engineering hitherto,because of the complexity of rock mass.In this paper,the mechanism of enhancement of rock strength by the composite action of bolts and rock is discussed.The mechanical model of bolted roof stability potential is set up,according to brittle damage theory. As a result,a new way is provided to the design or safety estimation of bolt reinforcement for roof directly and quantificationally.

关 键 词：岩石力学 锚杆 增强机理 稳定性 潜力 

分 类 号：TD352+.5[矿业工程—矿井建设]