GEOTECHNICAL ASPECTS OF THE UJO TUNNEL CONSTRUCTION USING THE NATM

The article reports on a study of the interaction between the rock mass and the tunnel support obtained during excavation of a single track railway tunnel in Spain constructed using the New Austrian Tunneling Method (NATM), where the initial support has been left as final. Some 700 rock mass quality determinations using the Norwegian Geotechnical Institute method have been performed along the tunnel. Measuring stations were installed at 734 locations to monitor horizontal convergence. Interesting conclusions relating rock mass quality to tunnel support and convergence have been obtained. Some recommendations to improve the rock mass classification systems are proposed.

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  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Leiria, F D
    • Oyanguren, P R
  • Publication Date: 1980-10

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Filing Info

  • Accession Number: 00334700
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 9 1982 12:00AM