Pedologic Soil Series-Resilient Moduli Relations

Abstract

Soil series location information from modern county soil reports and maps (available from USDA Soil Conservation Service) can be correlated to subgrade soil resilient moduli (E sub RI) values back-calculated from falling weight deflectometer (FWD) surface deflection basin data. Data from over 50 miles of flexible pavements throughout Illinois are included in this study. The soil series included in the study account for approximately 49% of the surficial soils of Illinois. In 71% of the comparisons, there are not statistically significant differences in average subgrade moduli values for given soil series segments. When there is a statistically significant difference, it generally is small and not of practical engineering importance in a pavement design context. The use of soil series - subgrade E Sub RI data based on FWD studies can greatly expedite and simplify the establishment of subgrade E Sub RI values for pavement analysis and design and similar types of horizontal construction activities. If data are not available for a particular soil series, soil series - E Sub RI data can be easily developed. Keywords: Soil tests; Soil mechanics; Soil models.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA211112

Entities

People

  • M. R. Thompson
  • T. Wilson

Organizations

  • University of Illinois Urbana–Champaign

Tags

DTIC Thesaurus Topics

  • Army
  • Civil Engineering
  • Classification
  • Coefficients
  • Cold Regions
  • Composite Materials
  • Computer Programs
  • Construction
  • Data Analysis
  • Engineering
  • Materials
  • New Hampshire
  • Plastic Explosives
  • Soil Classification
  • Surface Finishing
  • United States
  • Universities

Readers

  • Computational Modeling and Simulation
  • Geotechnical Engineering.
  • Pavement Materials Engineering.