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隧道建设(中英文) ›› 2010, Vol. 30 ›› Issue (S1): 94-99.

• 研究与探索 • 上一篇    下一篇

浅埋暗挖大跨隧道中的施工力学原理与施工技术研究

吉小明, 谭文   

  1. 1.广东工业大学土木与交通工程学院,广州510006;2.广州市地下铁道总公司,广州510030
  • 收稿日期:2010-03-26 修回日期:2010-05-06 出版日期:2010-08-14 发布日期:2010-08-25
  • 作者简介:吉小明(1965— ),男,江苏人,1989年毕业于山东科技大学采矿工程专业,博士,副教授,从事隧道与地下工程教学与研究工作。

Study on Construction Mechanic Principles and Construction
 Technology of Shallowburied Mined Tunnels with Large Spans

 JI  Xiao-Meng, TAN  Wen   

  1. 1. Faculty of civil and transportation engineering, Guangdong University of Technology, Guangzhou 510006;
    2. Guangzhou Metro Corporation; Guangzhou 510030
  • Received:2010-03-26 Revised:2010-05-06 Online:2010-08-14 Published:2010-08-25

摘要:

基于地铁车站大跨暗挖隧道的软弱地层条件,进一步研究大跨暗挖隧道施工过程力学原理中的大跨隧道分部开挖位移控制机理,隧道围岩的预加固机理及大跨隧道中临时支护结构拆除,二次衬砌施工过程中初期支护、二次支护力系转换机理和控制方法。据施工力学原理确定地铁车站大跨暗挖隧道合理的施工方法和辅助工法,在工程中应用后取得满意的效果。由此形成软弱地层条件下大跨暗挖隧道修建的系统关键技术。

关键词: 大跨隧道, 施工力学, 位移控制, 预加固机理, 施工技术

Abstract:

Regarding mined large span Metro station tunnels in soft ground, the mechanisms of displacement control in the sequential excavation of the tunnels, the mechanisms of advance reinforcement of the ground and the loading transfer between the primary reinforcement structure and the secondary lining structure are studied. Proper construction methods and assistant construction methods are established for mined large span Metro station tunnels on basis of the study results. The technology has been applied in the engineering practice and satisfactory effects have been achieved. In this way, systematic key construction technologies for mined large span Metro station tunnels in soft ground are established.

Key words: large span tunnel, construction mechanics, displacement control, advance reinforcement mechanisms, construction technology