• 中国科学引文数据库(CSCD)来源期刊
  • 中文核心期刊中文科技核心期刊
  • Scopus RCCSE中国核心学术期刊
  • 美国EBSCO数据库 俄罗斯《文摘杂志》
  • 《日本科学技术振兴机构数据库(中国)》
二维码

隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (3): 284-288.

• 研究与探索 • 上一篇    下一篇

新建地铁站基坑与既有车站结构间相互影响的数值分析

张国亮1,2, 韩雪峰1, 李元海3, 刘庆方3   

  1. 1. 中铁南方投资发展有限公司, 广东 深圳 518000; 2.中南大学土木建筑学院, 长沙 410083;  3.中国矿业大学深部岩土力学与地下工程国家重点实验室, 江苏 徐州 221008
  • 收稿日期:2011-02-17 修回日期:2011-03-29 发布日期:2011-07-08
  • 作者简介:张国亮(1967—),男,河南开封人,1988年毕业于长沙铁道学院隧道工程专业,本科,教授级高级工程师,现从事隧道与地下工程技术及管理工作。

Numerical Simulation on Interaction between New Foundation Pit and Existing Metro Station

ZHANG Guo-Liang1,2, HAN Xue-Feng1, LI Yuan-Hai3, LIU Qiang-Fang3   

  1. 1. China Railway South Investment & Development Co., Ltd, Shenzhen 518000, Guangdong, China; 2. School of Civil Engineering and Architecture, Central South University, Changsha 410083, China; 3. State Key Laboratory for GeoMechanics & Deep Underground Engineering, China University of Mining & Technology, Xuzhou 221008, Jiangsu, China
  • Received:2011-02-17 Revised:2011-03-29 Published:2011-07-08

摘要: 为解决新建地铁站基坑施工与临近既有车站结构间相互影响的问题,依托深圳地铁5号线前海湾站基坑工程和与其相邻的1号线鲤鱼门车站工程,采用FLAC3D有限差分软件,计算分析施工过程中前海湾站新基坑围护结构与鲤鱼门车站既有主体结构的受力变形情况。研究结果表明:既有鲤鱼门车站的存在对新基坑的开挖较为有利,可减小鲤鱼门站同侧的桩体变形(24.7%)和钢支撑轴力,使新基坑开挖更偏于安全;而新基坑开挖会使既有车站结构产生位移和一定转动,对既有车站的稳定和安全性影响较小。

关键词: 近接施工, FLAC3D, 地铁车站, 基坑, 既有车站, 基坑开挖, 桩体变形, 钢支撑

Abstract: The deformation of the retaining structure of the foundation pit of Qianhaiwan Station and that of the main structure of the existing Liyumen Metro Station are analyzed by means of FLAC3D finite element method, so as to minimize the interaction between the foundation pit construction and the existing Metro station. The study results show that the existing Liyumen station is favorable to the excavation of the new foundation pit because it can reduce the deformation of the piles on the same side by 24.7% and can reduce the axial force of the steel supports, which makes the excavation safer; on the other hand, the excavation of the new foundation pit will make the existing station rotate with a small value, which has little effect on the stability and safety of the existing station.

Key words: adjacent construction, FLAC3D, existing Metro station, foundation pit excavation, pile deformation, steel support