ANALYSIS AND DESIGN OF GEOTEXTILE-REINFORCED EARTH WALLS - PARAMETRIC STUDY AND PRELIMINARY DESIGN METHOD. FINAL REPORT

A parametric study was undertaken to investigate the effects of material properties, geosynthetic configurations, underlying foundations, and facings on the performance of geosynthetic reinforced retaining walls. The parametric study was conducted by using a finite element program SSCOMP. The program had been validated through comparisons with field measurement of many different earth structures. The effects of the following parameters on the performance of geosynthetic-reinforced retaining walls were investigated: the backfill stiffness and strength; the geosynthetic stiffness; the geosynthetic length; the geosynthetic layer spacing; the foundation stiffness and strength; the foundation depth; the surcharge pressure; and the facing rigidity. In view of the complexity of the performance of the walls as affected by the factors investigated, and increasing availability of computers to design engineers, a computer-based design procedure is proposed. The design method involves execution of two computer programs, GSWALL and SSCOMP. The program GSWALL is used to obtain a trial design. The program SSCOMP, which is capable of accommodating all of the above-mentioned factors, is used subsequently to calculate the detailed response of the wall, including wall movements and tensile forces induced in the geosynthetic. The trial design should be modified, using the findings of the parametric study as a guide, until an acceptable design is secured.

  • Corporate Authors:

    University of Colorado, Denver

    College of Engineering and Applied Science
    Denver, CO  United States  80204

    Colorado Department of Transportation

    4201 E Arkansas Avenue
    Denver, CO  United States  80222

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Wu, JTH
    • Lin, J C
  • Publication Date: 1991-3

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 118 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00625068
  • Record Type: Publication
  • Report/Paper Numbers: CDOT-UCD-R-91-12
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Oct 9 1996 12:00AM