溶洞位置对隧道围岩稳定性影响的有限元分析

Finite element analysis of influence of karst cave in different locations on tunnel surrounding rock stability

根据常用的岩石屈服的Drucker-Prager准则,结合广西六珠岭隧道实际工程,采用有限单元法,利用ANSYS软件建立二维分析模型,模拟分析了位于隧道不同位置平行隧道走向的溶洞对围岩稳定性的影响,得出了几点有帮助的结论,为西南岩溶地区隧道施工、设计和研究提供一些指导。

According to popular guide line of Drucker-Prager for rock, based on Liuzhuling tunnel real engineering in Guangxi, by using finite element method, applying ANSYS software, building two-dimensional model, simulating the influence of karst cave that parallel to the tunnel in different locations on the tunnel surrounding rock stability. Some useful conclusions have been drawn, could provide some reference to the construction, design and research of tunnel in southwest karst area.