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隧道建设(中英文) ›› 2018, Vol. 38 ›› Issue (S2): 126-135.DOI: 10.3973/j.issn.2096-4498.2018.S2.018

• 研究与探索 • 上一篇    下一篇

暗挖区间下穿施工对高铁桥的影响分析——以北京新机场线区间下穿京沪高铁北京特大桥工程为例

易领兵1, 刘鹏2, 杜明芳3, 吕高乐4, 王喜梅2, 刘胜欢3, 郑威锋2, 李帅兵2, 吕兆龙2   

  1. (1. 中交铁道设计研究总院有限公司,北京 100000; 2. 上海城铁建筑科技有限公司,上海 200000; 3. 河南工业大学土木建筑学院, 河南郑州 450000; 4. 郑州市轨道交通有限公司, 河南郑州 450000)
  • 收稿日期:2018-11-20 修回日期:2018-12-10 出版日期:2018-12-30 发布日期:2019-01-30
  • 作者简介:易领兵(1988—),男,河南信阳人,2015年毕业于河南工业大学,土木工程专业,硕士,工程师,现从事城市轨道交通建设管理与研究工作。Email: 877800536@qq.com。

Influences of Underground Excavation Section on Highspeed Railway Bridge: a Case Study of Beijing New Airport Line under Crossing Beijing Superlarge Bridge of BeijingShanghai Highspeed Railway

YI Lingbing1, LIU Peng2, DU Mingfang3, LYU Gaole4, WANG Ximei2, LIU Shenghuan3, ZHENG Weifeng2, LI Shuaibing2, LYU Zhaolong2   

  1. (1. CCCC Railway Consultants Group Co., Ltd., Beijing 100000, China; 2. Shanghai City Railway Construction Technology Co., Ltd., Shanghai 200000, China; 3. College of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou 450000, Henan, China; 4. Zhengzhou Metro Co., Ltd., Zhengzhou 450000, Henan, China)
  • Received:2018-11-20 Revised:2018-12-10 Online:2018-12-30 Published:2019-01-30

摘要:

为研究北京地区砂卵石地层大断面暗挖区间下穿施工对京沪高铁北京特大桥的影响,以北京市新机场线草桥站站后折返线大断面暗挖区间隧道工程为背景,对下穿京沪高铁北京特大桥段区间暗挖隧道进行设计,并用Midas/GTS软件进行有限元分析,研究大断面暗挖区间下穿京沪高铁北京特大桥施工过程中桥面、桥墩、承台及桥桩位移变化规律特征,得出大断面暗挖区间侧穿桥桩施工过程中桥桩附加应力变化规律,以及大断面暗挖区间下穿京沪高铁特大桥施工过程中承台差异沉降及地层应力变化规律。

关键词: 大断面暗挖区间, 京沪高铁北京特大桥, 下穿施工, Midas/GTS, 位移, 应力

Abstract:

In order to study the influence of tunneling under crossing the large crosssection underground excavation section in sandy cobble stratum in Beijing on superlarge bridge of BeijingShanghai Highspeed Railway, the large underground excavation section of the tunnel at the Caoqiao Station in Beijing New Airport Line is taken as the engineering background, the underground excavation tunnel passing through superlarge bridge of BeijingShanghai Highspeed Railway is designed. Midas/GTS software is applied to make finite element analysis of displacement variation laws of bridge deck, pier, cap and pile during the construction. The variation laws of the additional stress of bridge pile, the differential settlement and the variation laws of formation stress of bridge cap during the construction at the large underground excavation section are obtained.

Key words: large crosssection underground excavation section, superlarge bridge of BeijingShanghai Highspeed Railway, underpass construction, Midas/GTS, displacement, stress

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