AN EVALUATION OF DESIGN HIGH-WATER CLEARANCES FOR PAVEMENTS

In this paper is described a study to investigate the effect of capillary water presence on permanent deformation of four common Florida subgrade soils. Physical and engineering properties were first determined, with emphasis on developing soil-water retention characteristics. Repetitive triaxial load tests were then performed on the soils, under several different water conditions. These included at optimum, to represent the as-built condition, and at varied water retention conditions, to represent subgrade conditions in service (i.e., in equilibrium with the designated water table). Deformation characteristics of a subgrade fill, at different water conditions, were related to pavement rutting in accordance with the Shell Oil criteria. When a tolerable permanent deformation was obtained at a specified water condition, the specimen's location on the soil-water retention curve was determined. The height of the most economical subgrade fill could then be fixed.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1987/1121/1121-010.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=AN+EVALUATION+OF+DESIGN+HIGH-WATER+CLEARANCES+FOR+PAVEMENTS&author=M.+Elfino&author=J.+Davidson&publication_year=1987
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Environmental Factors Except Frost. 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:
  • Elfino, M K
  • Davidson, J L
• Conference:
  • 66th Annual Meeting of the Transportation Board
  • Location: Washington District of Columbia, United States
  • Date: 1987-1-12 to 1987-1-15
• Publication Date: 1987

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 66-76
• Monograph Title: Effects of temperature and water on pavement performance
• Serial:
  • Transportation Research Record
  • Issue Number: 1121
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Capillary water; Deformation; Fills; Height; Pavement design; Railroad clearances; Ruts (Pavements); Soil water; Soils; Subgrade (Pavements); Triaxial shear tests; Water table
• Uncontrolled Terms: Rut; Soil deformation
• Old TRIS Terms: Clearances
• Subject Areas: Design; Geotechnology; Highways; Hydraulics and Hydrology; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00468690
• Record Type: Publication
• ISBN: 0309045010
• Files: TRIS, TRB, ATRI
• Created Date: May 31 1988 12:00AM