SOILS REINFORCED WITH DISCRETE SYNTHETIC FIBERS

This paper discusses the technique of using discrete and randomly dispersed polypropylene fibers as reinforcement in granular soils. Two lengths of discrete fibers were tested in conjunction with four soils ranging from a uniform silica sand to a fine silt. Specimens of natural and reinforced soil were investigated in static triaxial compression. The compression behavior of these specimens was also used for comparison to the corresponding specimens of one-dimensional compression from oedometer tests. A constitutive model was employed to verify the experimental results. The application of this technique of soil reinforcement was found to increase the strength properties of the four soils tested. This increase is more pronounced in fine silts than in medium or uniform sands. The strength increase is directly proportional to fiber concentration. The higher fiber concentration is, however, associated with larger strains to reach peak strength and corresponding greater volume changes.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 465-475

Subject/Index Terms

Filing Info

  • Accession Number: 00795523
  • Record Type: Publication
  • ISBN: 0935803084
  • Report/Paper Numbers: Volume 1
  • Files: TRIS
  • Created Date: Jul 20 2000 12:00AM