VARDOE TUNNEL - AN UNDERSEA UNLINED ROAD TUNNEL NORWEGIAN STYLE

The design and construction of an undersea rock tunnel, to provide all-year-round communications between the mainland of Norway and the Island of Vardoe, is described. The single-bore tunnel being constructed to carry a two-way roadway, is 2800 M long, 8 M wide, and includes 100 M long concrete portals at each end to prevent snow blocking the entrances. Although a bridge was also considered, cost estimates showed that a tunnel could be constructed at lower cost providing risks concerning rock condition could be overcome. Horizontal holes were driven in advance of the face to give advance warning of faults and bad ground conditions. The excavated rock face is stabilised with rockbolts and lined with combined water shields and insulation to control leakages. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0041414X
• Corporate Authors:

  Morgan-Grampian Limited

  30 Calderwood Street
  London SE18 6QH,   England 
• Authors:
  • Martin, David
• Publication Date: 1981-12

Media Info

• Features: Figures; Photos;
• Pagination: p. 20-22
• Serial:
  • Tunnels & Tunnelling International
  • Volume: 13
  • Issue Number: 11
  • Publisher: Progressive Media Markets, Ltd
  • ISSN: 0041-414X

Subject/Index Terms

• TRT Terms: Construction management; Rockbolts; Rocks; Sandstones; Seas; Shale; Structural design; Tunneling; Tunnels; Underwater construction; Underwater structures
• Uncontrolled Terms: Tunnel design
• Geographic Terms: Norway
• Old TRIS Terms: Rock tunneling; Unlined tunnels
• ITRD Terms: 3666: Construction method; 8084: Norway; 4154: Rock; 4104: Sandstone; 4368: Sea; 4168: Shale; 3374: Tunnel; 3626: Underwater
• Subject Areas: Bridges and other structures; Construction; Design; Geotechnology; Highways; I25: Design of Tunnels; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00349576
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 30 1982 12:00AM