DESIGN OF ROCK SUPPORT FOR A MAJOR URBAN HIGHWAY TUNNEL. LARGE ROCK CAVERNS - PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM, HELSINKI, FINLAND, 25-28 AUGUST 1986. VOLUME 2

A major highway tunnel beneath the city of Oslo, Norway, is designed as double tube tunnels, each with three lanes, cross section of approximately 100-120 sq m and span width of 14.5 m (theor. rock excavation). The tunnels will be constructed partly through precambrian gneisses of fairly good rock quality (eastern part) and cambro-silurian sedimentary rock (western part), where the bedrock quality varies from fair to very poor. Due to low rock quality, combined with large span width, thorough evaluations of geological conditions and stress/strain analysis on rock masses has been required for the design of rock support. The paper describes the geological conditions along the tunnel, the different methods for description of rock masses, stress/strain analysis and design methods for rock support. For the covering abstract of the symposium see IRRD 810647. (Author/TRRL)

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  • Corporate Authors:

    Pergamon Press, Incorporated

    Headington Hill Hall
    Oxford OX30BW,    
  • Authors:
    • KITAGAWA, T
    • Rohde, JKG
  • Publication Date: 1987

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Filing Info

  • Accession Number: 00476307
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-08-034078-4
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1988 12:00AM