PREDICTING RUTS CAUSED BY SOFT SUBGRADE

Rut prediction, whether stemming from deformation in asphalt or soil, has always been a particularly difficult area for the pavement engineer. This paper centres around a predictive technique for soils and granular materials and presents two examples where the technique has been used and appears to be a sufficiently accurate tool for achieving meaningful results. One example is of trafficking at a laboratory scale, the other relates to airfield pavement design. The derivation of the model itself is described and the means of obtaining model parameters discussed. Finally its role in pavement design is examined and recommendations made for its use.

• Supplemental Notes:
  • This conference was arranged by the International Society for Asphalt Pavements. The ninth conference will be held in Copenhagen, Denmark in August 2002.
• Corporate Authors:

  University of Washington, Seattle

  Department of Civil and Environmental Engineering, P.O. Box 352700
  Seattle, WA  United States  98195-2700
• Authors:
  • Thom, N H
• Conference:
  • Eighth International Conference on Asphalt Pavements
  • Location: Seattle, Washington
  • Date: 1997-8-10 to 1997-8-14
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 1595-602

Subject/Index Terms

• TRT Terms: Airport runways; Deformation; Laboratory tests; Mathematical models; Mathematical prediction; Pavement design; Ruts (Pavements); Subgrade (Pavements); Test sections
• Subject Areas: Aviation; Data and Information Technology; Design; Geotechnology; Highways; Pavements; Terminals and Facilities; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I42: Soil Mechanics;

Filing Info

• Accession Number: 00764745
• Record Type: Publication
• Report/Paper Numbers: Volume II
• Files: TRIS, ATRI
• Created Date: Jun 17 1999 12:00AM