FAILURE OF FIBER-REINFORCED GRANULAR SOILS

Short fibers have been employed recently as a soil-improvement admixture, yet failure criteria for fiber-reinforced soils that are consistent with numerical methods for solving boundary-value problems are not available. The authors attempt to deive the limit condition of a fiber-reinforced granular soil. An energy-based homogenization scheme is used to establish the macroscopic failure stress of the fibrous granular composite. A piecewise closed-form failure criterion is derived. The strength of the granular matrix is quantified via the internal friction angle and the fibers are characterized by volumetric concentration, aspect ratio, yield point, and the fiber-soil interface friction angle. Good agreement between the model predictions and actual laboratory test results of specimens with low fiber content is revealed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339410
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Michalowski, R L
  • Zhao, A
• Publication Date: 1996-3

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 226-234
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 122
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Boundary value problems; Failure; Fiber reinforced concrete; Friction; Granular soils; Laboratory tests; Mathematical models; Ratios; Volumetric analysis; Yield point
• Uncontrolled Terms: Aspect ratio; Failure criterion; Fiber reinforcement; Friction angle; Models
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00719336
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 24 1996 12:00AM