DISCRETE SUPPORTS IN SUBMERGED TUNNELS

The Bilbao metro's underriver crossing at Olabeaga was executed using the immersed tunnel technique. The elements of the tunnel were prefabricated in a provisional dry dock which formed part of the future land tunnel. The presence of competent rock at bed level enabled sand injections to be replaced by discrete concrete supports, acting as keelblocks. Microconcrete-injected sacking bags were used to make the required bed adjustments. River traffic immediately above the tunnel, including vessels up to 10,000 DWT, remained uninterrupted throughout the operations. (A) For the covering abstract see IRRD E101472.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/3857480963
• Corporate Authors:

  International Association for Bridge and Structural Engineering

  ETH-Honggerberg, Wolfgang-Pauli-Strasse 15
  Zurich 8093,   Switzerland  CH-8093
• Authors:
  • MADINAVEITIA, J
• Conference:
  • PROCEEDINGS OF THE IABSE COLLOQUIUM HELD STOCKHOLM 1998 - TUNNEL STRUCTURES. IABSE REPORTS: VOLUME 78
• Publication Date: 1998

Language

• English

Media Info

• Pagination: p. 367-72

Subject/Index Terms

• TRT Terms: Concrete; Conferences; Construction; Inland waterways; Prefabricated structures; Rocks; Subways; Timbering; Tunnels; Urban areas
• Geographic Terms: Spain
• ITRD Terms: 4755: Concrete; 8525: Conference; 3655: Construction; 1088: Inland waterway; 3638: Prefabrication; 4154: Rock; 8105: Spain; 3605: Timbering; 3374: Tunnel; 1191: Underground railway; 313: Urban area
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Marine Transportation;

Filing Info

• Accession Number: 00767001
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 3-85748-096-3
• Files: ITRD
• Created Date: Aug 2 1999 12:00AM