华东交通大学学报2016，Vol.33Issue(3)：47-53,7.
砂卵石地层盾构施工对高铁桥梁的影响及控制
Research on Influence and Control of Shield Tunneling Construction in Sandy Pebble Stratum on High-speed Railway Bridge
李谷阳 1程盼盼 2徐前卫2
作者信息
- 1. 中铁五局电务城通公司，湖南 长沙 410205
- 2. 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
The shield passes through a bridge, on which Beijing-Tianjin intercity railway and Jingshan railway are laid, during tunneling in the section from Tianqiao to Yongdingmenwai of Beijing Metro Line 8 with mainly sandy pebble stratum. It's a high-risk project for it's easy to cause surface subsidence and collapse during shield tunneling in sandy pebble stratum, in addition to the strict requirements of track smoothness for high-speed rail-way. Based on numerical analysis software, the paper simulated dynamic construction process of shield tunnel overpassing railway bridge, researched the deformation of sandy pebble stratum, distribution of pore pressure and deformation of bridge structure caused by tunnel excavation. It finally put forward engineering countermeasures and monitoring schemes to ensure the safety of bridge. Research results can not only guide the design and con-struction of tunnel engineering, but also provide reference for similar project issues.关键词
砂卵石地层/盾构隧道/近接施工/施工措施Key words
sandy pebble stratum/shield tunnel/adjacent buildings/construction measures分类
交通工程引用本文复制引用
李谷阳,程盼盼,徐前卫..砂卵石地层盾构施工对高铁桥梁的影响及控制[J].华东交通大学学报,2016,33(3):47-53,7.
