STRESS-STRAIN CHARACTERIZATION OF TWO COMPACTED SOILS

This study defines a triaxial test method for controlling or measuring the variables that govern stress-strain behavior of partially saturated, compacted soil in compression. Triaxial data for Peorian loess and Hastings silt loam from Nebraska are combined into a useful, compact form by using exponential functions. Stress-strain curves representing a wide range of initial densities and moisture contents are reasonably well characterized by a hyperbolic stress-strain function. The two coefficients of this function are shown to be exponential functions of void ratio and degree of saturation. Techniques are given for determining elastic (secant) moduli as functions of the level of stress difference, degree saturation, and void ratio. These moduli can be used in flexible pavement design procedures requiring a subgrade stiffness for any reasonable assumed in situ subgrade condition of dry density and moisture content for the soils tested.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/548/548-009.pdf
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=STRESS-STRAIN+CHARACTERIZATION+OF+TWO+COMPACTED+SOILS&author=R.+Sneddon&publication_year=1975
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Strength and Deformation Characteristics of Pavement Sections. 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.
• Corporate Authors:

  Transportation Research Board

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  Washington, DC  United States  20001
• Authors:
  • Sneddon, Roy V
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1975

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 97-103
• Monograph Title: SOIL AND ROCK MECHANICS, CULVERTS AND COMPACTION
• Serial:
  • Transportation Research Record
  • Issue Number: 548
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Compression; Deformation curve; Density; Dry density; Flexible pavements; Loess; Measurement; Modulus of elasticity; Moisture content; Pavement design; Pavement subgrade; Percent saturation; Silty loams; Soil compaction; Triaxial shear tests; Void ratios
• Old TRIS Terms: Dry density (Soils); Loess soils
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00129496
• Record Type: Publication
• ISBN: 0309024536
• Files: TRIS, TRB
• Created Date: Mar 10 1976 12:00AM