ANALYSIS OF BACKPACKED LINERS

A set of theoretical equations has been developed that predict the stresses and displacements everywhere in a liner-backpacking support system of linearly elastic material. It is assumed that the field stresses are applied to the system after the liner has been placed, and the pressures due to the instability of the rock opening itself are not considered. Theoretical work is applicable to any number of concentric layers of material, thereby enabling one to handle underground situations where backpacking can be placed between liner and rock. Graphs showing the benefits and limitations of backpacking are given along with an example showing the effects of an ultrasoft layer of material surrounding the liner. These equations when applied to existing laboratory data show good agreement with measured values, and they have also guided the design of field liner installations. /ASCE/

• 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:
  • Dar, S M
  • Bates, R C
• Publication Date: 1976-7

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 739-759
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 102N
  • Issue Number: GT7
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Analysis; Benefits; Equations; Forecasting; Laboratory studies; Mechanical elasticity; Mineral dislocations; Rocks; Soft rock; Stresses
• Old TRIS Terms: Liners; Support systems
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00141320
• Record Type: Publication
• Report/Paper Numbers: ASCE #12242 Proceeding
• Files: TRIS
• Created Date: Oct 26 1976 12:00AM