摘要
采用三维有限元模拟盾构推进的过程,是研究盾构施工中土层移动的最有效的手段,在真实模拟施工情况的基础上,研究了新隧道从老隧道下面垂直穿过时,对老隧道的变形影响情况。研究表明,推进力和稳定比 N 是影响老隧道变形的主要因素。
Using three dimensional finite element method to simulate the shield tunneling is the most efficient measure to study the ground movement during shield tunneling. By using three dimensional elastic-plastic finite element method to simulate the shield tunneling factually, the paper introduces the study of impact on deformation of existing tunnel when a new tunnel crosses perpendicularly under the existing tunnel. The study shows the driving force and the stabilization ratio N are the main factors that may affect the deformation of the existing tun- nel.
出处
《地下工程与隧道》
2001年第2期14-18,共5页
Underground Engineering and Tunnels
