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隧道建设(中英文) ›› 2013, Vol. 33 ›› Issue (12): 983-988.DOI: 10.3973/j.issn.1672-741X.2013.12.001

• 工程概述 •    下一篇

北京地铁8号线二期南段工程设计与施工

李立   

  1. (中铁隧道勘测设计院有限公司, 天津 300133)
  • 收稿日期:2013-09-24 修回日期:2013-10-29 出版日期:2013-12-20 发布日期:2013-12-27
  • 作者简介:李立(1977—),男,河南新乡人,2000年毕业于西南交通大学土木工程专业,本科,高级工程师,从事隧道及地下工程设计工作。

Design and Construction of Southern Part of Phase II Project of Line 8 of Beijing Metro

LI Li   

  1. (China Railway Survey & Design Institute Co., Ltd., Tianjin 300133, China)
  • Received:2013-09-24 Revised:2013-10-29 Online:2013-12-20 Published:2013-12-27

摘要:

北京地铁8号线二期南段工程位于中心城区,周边环境复杂,设计和施工难度大。结合地铁南段工程整体概况,分析工程特点和难点,分别介绍一些有代表性的关键工程(盾构近距下穿既有站、盾构长距离下穿民房区、叠落盾构始发接收及施工、暗挖横通道内盾构调头吊出等)以及工程所采取的设计方案、技术创新及相关技术措施。通过对南段工程特点、技术创新、建设经验等进行总结,为类似工程提供一定的参考和借鉴。

关键词: 北京地铁, 明挖法, 暗挖法, 叠落盾构, 洞内调头, 超深基坑

Abstract:

The Southern part section of Phase II Project of Line 8 of Beijing Metro,is located in central downtown area,has complicated surrounding environment and large design and construction difficulties. In this paper, the characteristics and difficulties of the project are analyzed.Key technologies,including shieldboring closely underneath existing Metro station, longistance shield boring underneath residual buildings,launching and receiving of shield machines of stacked tunnels, and Uturn and lifting of shield machine in mined cross gallery, as well as the designed program, technical innovations and technical countermeasures,are presented in detail. The paper can provide references for similar projects in the future.

Key words: Beijing Metro, cut and cover, mining method, risk source, stacked shieldbored tunnel, Uturn in tunnel, supperdeep foundation pit