FIELD TEST SECTIONS SAVE COST IN TUNNEL SUPPORT

This study summarizes 50 case histories where instrumented test sections were a key factor in realizing major savings from newer concepts in designing underground works. Savings were most often in the item of tunnel support, using field tests to validate newer approaches. Where the tests formed a coordinated program, savings have been spectacular. One example cited is Britain saving half the construction cost on recent London tunnels. In Sweden, cost of underground works has been reduced to equal or below that of surface alternatives for many facilities such as power plants, sewage and water treatment, oil storage, and parking. Despite growing objections to locating such facilities in the surface environment, high cost has deterred U.S. planners from considering the underground alternative. Major cost improvement could change this, allowing greater use of the underground to alleviate several U.S. problems: urban congestion, pollution and energy waste. The case record charts the road; wider trial of newer and less costly concepts (many developed abroad), using field texts to validate their applicability for U.S. conditions.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  USA  10017-2398

    National Science Foundation

    1800 G Street, NW
    Washington, DC  USA  20550
  • Authors:
    • Lane, K S
  • Publication Date: 1975-4

Media Info

  • Pagination: 67 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00094294
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NSF/RA/T-75-035
  • Contract Numbers: NSF-GI-41842
  • Files: TRIS
  • Created Date: Mar 29 1976 12:00AM