ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2007, Vol. 27 ›› Issue (3): 92-96.DOI: B

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Construction of Tunnel in Compact Waterrich Sandpebble
Ground by means of Shallow Undercutting Method

 CUI Ying-Zhe, DANG Gong-Zhang, DAI Xun-Hua   

  1. Project Department of South Crossover Works of Chengdu Metro, China Railway Tunnel Group
  • Received:2007-03-14 Revised:2007-04-11 Online:2007-06-20 Published:2009-12-04

Abstract:

Taking the undercut trial section of Tianfu Square tunnel on line 1 of Chengdu Metro as case history, the authors present comparison and contrast of tunnel construction in sandpebble ground by means of CD method with that by means of bench method so as to accumulate experience for the future largescale design and construction of Chengdu Metro by means of undercutting method and to provide reference for tunnels in similar geological conditions constructed by means of shallow undercutting method.

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