LIERASEN TUNNELGATE FOR SAFEGUARD AGAINST FROST WEATHERING

LIERASEN TUNNEL. FROSTSIKRING MED TUNNELPORT

Lierasen tunnel, a 10700 meter long double track railway tunnel between Oslo and Drammen has been exposed to frost weathering. The difference in level between the two tunnel mouths causes a strong upward current of air, which in wintertime allows frost to penetrate several kilometers into the tunnel. The conventional methods of safeguards, as grouting, bolting, injection and insulation have been tried without satisfaction. The article describes the construction and operation of an automatic gate, that closes the lower entrance of the tunnel when no trains are passing and controls the climatic conditions of the tunnel.

  • Corporate Authors:

    Norwegian State Railways

    Storgaten 33
    Oslo 1,   Norway 
  • Authors:
    • Hartmark, H
    • Vinogg, L
  • Publication Date: 1979-5

Language

  • Norwegian

Media Info

  • Features: Figures;
  • Pagination: p. 9-14
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00190361
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM