ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2013, Vol. 33 ›› Issue (8): 679-683.DOI: 10.3973/j.issn.1672-741X.2013.08.010

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Application Prospect and Developing Trend of Synchronous Lining Construction Technology for Long Tunnels Constructed by Open TBMs

QI Mengxue   

  1. (Tunnel Engineering Co, Ltd of China Railway 18th Bureau Group, Chongqing 400700, China)
  • Received:2013-05-13 Revised:2013-07-10 Online:2013-08-20 Published:2013-08-23

Abstract:

TBMs used in China mostly are open TBMs For long tunnels constructed by open TBMs, primary support and secondary lining are needed, which causes long tunnel construction period In the paper, the synchronous lining construction technologies for Zhongtianshan tunnel and West Qinling tunnel are presented and the developing trend of the synchronous lining construction technology is discussed.

Key words: long tunnel, opentype hard rock tunnel boring machine (TBM), synchronous lining, side wall, crown, castinsitu concrete invert