连拱隧道施工全过程有限元模拟  

FEM simulation of the whole construction process of a multi-arched tunnel

作　　者：佘健[1] 何川[1] 

机构地区：[1]西南交通大学地下工程系

出　　处：《现代隧道技术》2004年第6期5-11,共7页Modern Tunnelling Technology

摘　　要：文章以浙江省某高速公路连拱隧道为工程背景 ,应用Ansys有限元程序对其施工全过程进行了研究 ,得出隧道围岩、喷混凝土、锚杆、中隔墙的应力、应变、位移随施工过程的分布规律。另外 ,通过采用不同的支护方式和不同的开挖顺序的模拟 ,得出了应力、应变和位移的变化规律。其结论可为连拱隧道的设计、施工提供参考。Taking the expressway multi-arched tunnel in Zhejiang Province as the engineering background and applying an ANSYS software, the paper studies the process of construction of the tunnel. As a result, the distribution of the stresses, strains and displacements in the tunnel surrounding rock, shotcrete, rock bolts and in the intermediate wall in the course of construction are revealed. On the other hand, the variation of the stresses, strains and displacements are obtained by simulating the different support systems and excavation order. The conclusions are useful for the design and construction of the multi-arched tunnels.

关 键 词：连拱隧道 有限元分析 应力 位移 

分 类 号：U452[建筑科学—桥梁与隧道工程]