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.


  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 226-234
  • Serial:

Subject/Index Terms

Filing Info

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