NUMERICAL ANALYSIS OF GEOSYNTHETIC-RAMMED AGGREGATE PIER SUPPORTED EMBANKMENTS

This paper presents results from numerical study to investigate the interactions between rammed aggregate piers and geosynthetic reinforcement in pier-supported embankments. The investigation was conducted using a two-dimensional, plane-strain, finite element model. Linear elastic, perfectly plastic constitutive model parameters were assumed fir the rammed aggregate piers, the matrix soil stiffness ratios considered in the analyses, a range of center-to-center soakings between piers was included. The geosynthetic reinforcement was modeled as a tensile element with various tensile stiffness values. Results obtained from this study provide insight into: (1) the interaction between the pier elements and the geosynthetic reinforcement to reduce differential settlement; (2) range of stress concentration ratio; and (3) tensile forced developed in the geosynthetic reinforcement. It is concluded that the efficiency of using geosynthetic reinforcement is improved as both the geosynthetic modulus and the pier-soil stiffness ratio increase.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407444
• Corporate Authors:

  American Society of Civil Engineers

  Geo Institute, 1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Pham, HTV
  • Suleiman, Muhannad T
  • White, D J
• Conference:
  • Geotechnical Engineering for Transportation Projects, Geo-Trans 2004
  • Location: Los Angeles, California
  • Date: 2004-7-27 to 2004-7-31
• Publication Date: 2004

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 8 p.
• Serial:
  • ASCE Geotechnical Special Publication
  • Issue Number: 126
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Aggregates; Embankment foundations; Finite element method; Geosynthetics; Ground settlement; Linear elasticity; Numerical analysis; Piers (Supports); Plastic analysis; Soil structure; Stiffness; Tensile strength
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00987957
• Record Type: Publication
• ISBN: 0784407444
• Report/Paper Numbers: Volume 1
• Files: TRIS
• Created Date: Mar 23 2005 12:00AM