土工基础

›› 2019, Vol. 33 ›› Issue (3): 280-284.

• 工程实录 • 上一篇    下一篇

换乘车站新线建设对既有线的影响及处置措施

宋磊鹏   

  1. （广州地铁设计研究院股份有限公司，广州 510010）
  • 收稿日期:2019-01-08 修回日期:2019-02-13 出版日期:2019-06-20 发布日期:2019-08-16
  • 作者简介:宋磊鹏(1988-)，男，工程师，研究方向为地下结构工程。

Influence of a New Metro Line Construction at the Exchange Station on the Existing Subways

SONG Leipeng   

  1. (Guangzhou Metro Design & Research Institute Co., Ltd., Guangzhou 510010)
  • Received:2019-01-08 Revised:2019-02-13 Online:2019-06-20 Published:2019-08-16

摘要： 换乘车站作为城市轨道交通线网中的重要节点，连接了不同的骨干线路，为大众的出行带来了极大的便利。换乘车站有同期实施和分期实施两种方案，对于分期实施的换乘车站，在新线建设过程中，车站主体基坑开挖势必会对既有线车站和区间产生一定的影响。以某换乘车站为研究对象，通过建立三维有限元模型，分析不同工况下既有线车站和区间的变形规律，为车站结构方案的优化和风险处置措施的制定提供依据。

关键词: 换乘车站, 基坑开挖, 既有线, 有限元模拟

Abstract: As an important node in urban rail transit network, the exchange station connects different major metro lines, which offers a very convenience experience for the commute passengers. There are two construction methods of an exchange station: one stage construction and phased construction. For a phased construction exchange station, the excavation of the station foundation structure will have an impact of the existing station and rail tracks. A three-dimension finite element model was established to analysis the new station construction on the existing station and rail tracks. Based on the numerical results, the supporting structure design was optimized, and the potential construction hazards and their remediation methods are also discussed in this paper.

Key words: Exchange Station, Deep Excavation, Existing Subway, Finite Element Analysis