EFFECT OF LANDING GEAR SPACING ON THE SURFACE DEFLECTION RESPONSE OF AIRPORT PAVEMENTS

Pavement responses (stresses, strains, deflections, etc.) were measured at various depths in each of the six flexible pavement test items at the National Airport Pavement Test Facility (NAPTF). Moving loads were applied at a speed of 0.15-m/sec (0.5-feet/second). The tests included dual-wheel, dual-tandem, and dual-tridem configurations. Gear separation tests with four- and six-wheel gears were performed to study the effects of gear spacing on flexible pavement response. The multi-depth deflectometers (MDDs) were used to measure deflections of pavement layers at multiple vertical locations referenced to a stable point. Each MDD contains seven displacement transducers (DT). This paper summarizes the measured surface deflection response results from the gear separation tests. For the covering abstract see ITRD E118503.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 1191-200
  • Serial:
    • Volume: 2

Subject/Index Terms

Filing Info

  • Accession Number: 00963874
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 90-5809-398-0
  • Files: ITRD
  • Created Date: Oct 3 2003 12:00AM