TEMPORARY TUNNEL SUPPORT BY ARTIFICIAL GROUND FREEZING

The major considerations involved with evaluating artificial ground freezing for temporary tunnel support are described. To illustrate the general design process, three study cases where ground freezing was evaluated for tunneling beneath mainline railroad tracks are presented. A laboratory testing program, consisting of both static creep tests and repeated load triaxial tests, was conducted to define the strength and deformation characteristics of the case study soils frozen to -70 deg C and -10 deg C. It was determined that the stress-strain characteristics of the frozen soil could be approximated by a hyperbolic function. The finite element method was used to calculate the stress distribution in the frozen tunnel liners. /Author/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Jones, J S
  • BROWN, R E
• Publication Date: 1978-10

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 1257-76
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 104
  • Issue Number: GT10
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Creep tests; Deformation curve; Freezing; Ground handling; Hyperbolic functions; Railroad tracks; Statics; Triaxial shear tests; Tunnel lining; Tunnel supports
• Old TRIS Terms: Ground conditions; Static conditions
• Subject Areas: Aviation; Geotechnology; Highways; Railroads;

Filing Info

• Accession Number: 00184861
• Record Type: Publication
• Source Agency: ASCE Journal of the Geotechnical Engineering Div
• Report/Paper Numbers: ASCE 14108 Proc Paper
• Files: TRIS
• Created Date: Feb 3 1979 12:00AM