华东交通大学学报2017，Vol.34Issue(2)：45-53,9.
地铁盾构近距离下穿多座高铁桥梁影响分析
Numerical Analysis for the Construction of Metro Shield Tunnel under Multiple High-speed Railway Bridges
唐黎明1
作者信息
- 1. 同济大学道路与交通工程教育部重点实验室,上海 201804
- 折叠
摘要
Abstract
Shield tunneling method is widely used in the construction of urban rail transit. It is inevitable that the shield tunnels will pass through the existing bridges;meanwhile, the pier displacement in construction should be taken into consideration to maintain safe operation of the bridge. Taking Ningbo rail transit line 4 Jinda Road Station to Qianhu Road Station interval under cross bridge of the Hangshen line and north link of Yinxian as an example,this paper analyzed the process of shield tunnel construction by using the Plaxis 3D finite element soft-ware in numerical simulation and studied the deformation on the top of the bridge piers under different construc-tion conditions,and the deformation and displacement of high-speed railway bridge pier were obtained. The technical analysis and safety assessment of the design scheme were carried out.关键词
城市地铁/盾构隧道/下穿施工/既有桥梁/数值分析Key words
urban metro/shield tunnel/under-crossing construction/existing bridge/numerical analysis分类
交通工程引用本文复制引用
唐黎明..地铁盾构近距离下穿多座高铁桥梁影响分析[J].华东交通大学学报,2017,34(2):45-53,9.
