Use of Concentration Index for Pavement Design.

Abstract

The application of the concentration index to pavements is illustrated. The problem with the design of flexible airfield pavements under newly developed jumbo-jet aircraft, as represented by the Lockheed C-5A Galaxy and the Boeing 747, is discussed. These aircraft are equipped with extremely large multiple-wheel landing gears. It is found that the CBR design equation can be used to evaluate the pavement performance under multiple-wheel gear assemblies when the equivalent single-wheel load (ESWL) is computed by the concentration index method. The concentration index is approximately independent of the load, gear configuration, and soil strength but varies with the depth.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1974
Accession Number
ADA035976

Entities

People

  • Harry H. Ulery Jr.
  • Richard G. Ahlvin
  • Y. T. Chou

Tags

Communities of Interest

  • Counter WMD

DTIC Thesaurus Topics

  • Aircrafts
  • Civil Engineering
  • Elastic Properties
  • Engineering
  • Engineers
  • Equations
  • Jet Aircraft
  • Landing Fields
  • Landing Gear
  • Materials
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Physical Properties
  • Shear Stresses
  • Stresses
  • Thickness

Fields of Study

  • Engineering

Readers

  • Aerospace Engineering
  • Pavement Materials Engineering.
  • Theoretical Analysis.