层状结构面对巷道稳定性影响的数值模拟分析  

Numerical Simulation Analysis of Effect of Bedded Structural Plane on Tunnel Stability

作　　者：李文增[1] 马群[2] 王计宝[2] 

机构地区：[1]东北大学 [2]辽宁省安全科学研究院

出　　处：《金属矿山》2007年第11期22-25,共4页Metal Mine

摘　　要：从岩石为非均匀性材料的认识出发,引入细观层次的微元体,采用损伤力学和统计理论的单元本构模型,利用岩石破裂过程分析软件RFPA2D,对具有不同倾角层状软弱结构面岩体中隧道的变形破坏特征、隧道周边关键部位的位移和应力变化以及隧道的安全储备进行了分析。对于进一步深入理解具有软弱结构面中隧道破坏失稳机理并采取有效的加固措施等具有重要的理论和实践意义。From the viewpoint that rock is a heterogenic material,by introducing microscopic elements in microscopic level,using unit constitutive model based on damage mechanics and statistics theory and adopting RFPA2D,an analysis software for rock fracture process,analysis is made of the deformation failure mode and characters of the tunnel excavated in rock mass cut by bedded weak structural planes at different dip angles,the displacement and stress change at the key points on tunnel surface as well as the safety ...

关 键 词：结构面 隧道 破坏 数值模拟 

分 类 号：TD322.4[矿业工程—矿井建设]