非对称浅埋连拱隧道有限元分析  

Finite Elements Analysis concerning Low-Burying Non-Asymmetric Multi-Arch Tunnels

作　　者：于海洋 冉黎明 武建华[2] 

机构地区：[1]重庆城建控股(集团)有限责任公司,重庆400013 [2]重庆大学土木工程学院,重庆400045

出　　处：《重庆建筑》2012年第1期12-15,共4页Chongqing Architecture

摘　　要：利用MIDAS/GTS有限元软件,对非对称连拱隧道浅埋段施工方法、加固效果进行了二维数值模拟分析,揭示了施工过程中不同施工方法和注浆措施对隧道周边变形和初期支护结构的影响。主要分析边导洞开挖顺序的影响,边导洞内侧和中导洞两侧区域注浆效果。分析方法和计算结果对非对称连拱隧道设计、施工具有一定的指导意义。In this passage, MIDAS/GTS FEM is adopted by applying a two-dimension numerical simulation analysis on the construction methods, reinforcement effect of the low-burying and non-asymmetric multi-arch tunnel. This shows the effect of deformation around the tunnel and primary support structure of different construction methods and grouting measures. This passage mainly analyses the impact of the order of side-heading excavation, grouting in inside of side-heading excavation and both sides of central-heading excavation. The analysis methods and the calculations have a certain instructional value to the similar designs and constructions concerning non-asymmetric multi-arch tunnels.

关 键 词：非对称 连拱隧道 开挖方法 小导管注浆 有限元 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]