Accession Number : ADA319272

Title :   Design of Flexible Airfield Pavements for Multiple-Wheel Landing Gear Assemblies. Report Number 1. Test Section with Lean Clay Subgrade.

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s) : Turnbull, W. J. ; Boyd, W. K. ; Foster, C. R. ; Griffith, J. M. ; Ray, O. B.

PDF Url : ADA319272

Report Date : SEP 1952

Pagination or Media Count : 89

Abstract : The traffic tests and associated studies reported herein were performed for the purpose of developing methods for designing flexible pavements to accommodate the multiple-wheel assemblies of heavy planes. Traffic was applied to a test section, constructed of a medium-strength lean clay, with wheel assemblies simulating those of the B-29, B-50, and B-36 planes. The B-29 assembly was loaded to 70,000 lb (35,000 lb per wheel), the B-50 assembly to 100,000 lb. (50,000 lb per wheel), and the B-36 assembly to 150,000 and 200,000 lb (37,500 and 50,000 lb per wheel, respectively). Deflection measurements and other data on the behavior of the test section under traffic were obtained. Test results indicate that multiple-wheel design criteria developed by theoretical methods from already established single-wheel curves are reasonably correct for this test section, but are slightly on the unsafe side.

Descriptors :   *PAVEMENTS, *CLAY, *RUNWAYS, TEST AND EVALUATION, MEASUREMENT, SUBGRADES, SAFETY, LANDING FIELDS, BOMBER AIRCRAFT, FLEXIBLE MATERIALS.

Subject Categories : Terminal Flight Facilities
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE