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隧道建设（中英文） ›› 2012, Vol. 32 ›› Issue (4): 581-586.DOI: 10.3973/j.issn.1672-741X.2012.04.027

• 施工技术 • 上一篇    下一篇

敞开式TBM通过地铁车站中板实时监测及反馈技术

李辉   

  1. (中铁隧道集团技术中心，河南洛阳 471009)
  • 收稿日期:2012-02-10 修回日期:2012-04-14 出版日期:2012-08-20 发布日期:2012-10-16
  • 作者简介:李辉(1981—)，男，河北保定人，2008年毕业于石家庄铁道学院土木工程专业，本科，助理工程师，主要从事隧道与地下工程科研、设计与施工管理方面的工作。
  • 基金资助:

    中铁隧道集团有限公司科技创新计划项目（隧研合2011-05）

Realtime Monitoring and Feedback Technologies for Open  TBM Transferring along Intermediate Ceiling of Metro Station

LI Hui   

  1. (Technology Center of China Railway Tunnel Group, Luoyang 471009, Henan, China)
  • Received:2012-02-10 Revised:2012-04-14 Online:2012-08-20 Published:2012-10-16

PDF

1172

摘要： 考虑到TBM自身荷载大，TBM中板过站时可能对地铁车站结构造成变形，影响结构的稳定性，为积累TBM中板过站的经验，以重庆地铁敞开式TBM通过大龙山车站中板为例，通过对TBM中板过站期间钢支撑轴力、中板挠度、中板（边墙）裂缝实时监测进行研究，得出以下结论： 1）TBM机头在监测断面时，车站结构变形和受力最大； 2）TBM机头对中板的主要作用为垂直压力，支撑靴对中板的主要作用为侧向压力；3）TBM通过中板时，中板下翻梁可以起到传递TBM压力的作用。通过实时监测指导了TBM过站施工，降低了TBM过站安全风险，确保了结构的安全稳定。

关键词: 敞开式TBM, 地铁, 中板过站, 实时监测, 钢支撑轴力, 中板挠度, 裂缝

Abstract: Due to the huge weight of the TBM, the transfer of the TBM alng the intermediate ceiling of the Metro station may have serious impact on the stability of the Metro station. Realtime monitoring is made on the axial force of the steel support, the deflection of the intermediate ceiling and the cracks of the intermediate ceiling and the side wall during the transfer of the open TBM along the intermediate ceiling of Dalongshan station of Chongqing Metro. Conclusions drawn are as follows: 1) The deformation and stress of the Metro station structure is the largest when the TBM head is in the monitoring section. 2) The main action of the TBM head on the intermediate ceiling takes the form of vertical pressure and the main action of the grippers on the intermediate ceiling takes the form of lateral pressure. 3) The beams of the intermediate ceiling can transfer the pressure when the TBM passes the intermediate ceiling. The realtime monitoring provides guidance for the station transfer of the TBM, which minimizes the safety risks and guarantees the stability of the Metro station. 

Key words: open TBM, Metro, intermediate ceiling, station transfer, realtime monitoring, steel support, axial force, deflection, crack

主办单位：中铁隧道勘察设计研究院有限公司    主管单位：中铁隧道局集团有限公司

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