This article presents the conclusions of the British Tunnelling Society's Closed Face Working Group report focusing on details of closed face tunnelling. The group convened to examine all aspects of closed face tunneling, with particular attention to tunnelling in urban areas. The report reviews the technology involved in closed face tunnelling machines. Factors involved in choosing between an earth pressure balance (EPB) machine and a slurry machine are discussed. The report examines incidents worldwide and categorizes the reasons for the failures that occurred. It presents a table intended for use by engineers for carrying out risk assessments when estimating the relative frequency of the occurrence of different hazards. The report discusses hazards associated with urban tunneling. It relates that a risk-based approach is critical to successful tunneling, and notes that site investigations and the use of geophysics are essential to success. A discussion of proper operating parameters for TBMs is presented, followed by conclusions and recommendations.

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  • Corporate Authors:

    Polygon Media Limited

    Tubs Hill House, London Road
    Sevenoaks, Kent TN13 1BY,   United Kingdom 
  • Authors:
    • Grose, B
  • Publication Date: 2005-3


  • English

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Filing Info

  • Accession Number: 00989391
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: May 3 2005 12:00AM