铁道标准设计Issue(1)：59-62,4.
近接基坑开挖对既有地铁结构影响的数值模拟分析
Numerical simulation Analysis for Effects on Existing Metro Structure Due to Excavation Nearby
张保存 1董秀竹 1郑刚2
作者信息
- 1. 铁道第三勘察设计院集团有限公司,天津300142
- 2. 天津大学,天津300072
- 折叠
摘要
Abstract
With the development of metro project, more and more excavations have to be executed near the existing metro lines. The existing structure will be affected by the excavation inevitably. The influences on Tianjin area are researched based on the example of excavation work of the south plaza of Tianjin West Station. General finite element analyses software Plaxis is applied to simulate the excavation process. The influence of the excavation on the existing structure of Xizhan Station of Metro line I nearby is analyzed based on the computation. It appears that the horizontal displacement of the existing structure caused by the excavation is much bigger than the vertical one that can be ignored. In Tianjin area even the excavation is rather closed to the existing metro structure, the influence can be restricted to a safe level by precise design and construction, therefore the safety of the metro structure and the operation can be guaranteed.关键词
基坑开挖/近接施工/既有地铁/数值模拟Key words
excavation/ construction close to existing structure/ existing metro/ numerical simulation分类
交通工程引用本文复制引用
张保存,董秀竹,郑刚..近接基坑开挖对既有地铁结构影响的数值模拟分析[J].铁道标准设计,2012,(1):59-62,4.
