The author reports in detail on boring a 2600 M long 10.67 M diameter railway tunnel through sandstone, silt and marl. Precast concrete segments were placed in the tunnel invert immediately behind the cutter head, and a first concrete lining was applied to the rest of the circumference of the tunnel using an automatic concrete spraying machine following a very short distance behind the boring machine. Daily advance in a 2 shift day was 8 M, using roof-bolts and wire mesh reinforcement, or 3.6 M in the quarter of the tunnel length where steel rib support was used. The number of the covering abstract of the conference is IRRD 231024.

  • Availability:
  • Corporate Authors:

    Statens Raad foer Ryggnadsforskning

    St Goeransgatan 66, Box 27063
    S-11230 Stockholm,   Sweden 
  • Authors:
    • Prader, D
  • Publication Date: 1977


  • English

Media Info

  • Pagination: p. 205-210
  • Serial:
    • Volume: D
    • Issue Number: 3

Subject/Index Terms

Filing Info

  • Accession Number: 00174027
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 91 540 2675 X
  • Report/Paper Numbers: Document D3:1977 Analytic
  • Files: ITRD, TRIS
  • Created Date: May 3 1978 12:00AM