APPLICABILITY OF RESILIENT CONSTITUTIVE MODELS OF GRANULAR MATERIAL FOR UNBOUND BASE LAYERS

Analytical design methods for pavements require the determination of the resilient behavior of each layer. Granular material behavior under traffic loading is nonlinear and stress path dependent. Because the deformation characteristics of the material are significantly affected by stress magnitude and path, stress-strain behavior must be modeled accurately. A wide range of graded granular material types was selected to assess the applicability of stress-strain models. A repeated load triaxial test apparatus, which can cycle deviatoric and cell pressure, was used to test a variety of stress paths for furnace bottom ash, graded washed river sand, sand and gravel, Fontainebleu sand, limestone, and gritstone. Linear and nonlinear regression programs were used to obtain the parameters for five different models. The results indicated that there is no unique model to represent the granular material behavior under all circumstances. Elhannani's model can be used for predicting the response to cyclic deviatoric stress with cyclic cell pressure test data. Using K-theta and Pappin and Brown models, approximate predictions can be made of axial stiffness under the cycling of both stresses using parameters obtained from more-simple only-cyclic deviatoric stress test data.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1993/1406/1406-013.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=APPLICABILITY+OF+RESILIENT+CONSTITUTIVE+MODELS+OF+GRANULAR+MATERIAL+FOR+UNBOUND+BASE+LAYERS&author=M.+Karasahin&author=A.+Dawson&author=J.+Holden&publication_year=1993
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1406, Construction Robotics and Automation, and Foundations Engineering. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Karasahin, M
  • Dawson, A R
  • Holden, J T
• Publication Date: 1993

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 98-107
• Monograph Title: Construction robotics and automation, and foundations engineering
• Serial:
  • Transportation Research Record
  • Issue Number: 1406
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accelerated tests; Base course (Pavements); Bottom ash; Deformation curve; Granular materials; Gravel; Limestone; Mathematical models; Regression analysis; Repeated loads; Sand; Triaxial shear tests
• Uncontrolled Terms: Gritstone; Unbound
• Subject Areas: Data and Information Technology; Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00641442
• Record Type: Publication
• ISBN: 0309055539
• Files: TRIS, TRB, ATRI
• Created Date: Jan 25 1994 12:00AM