MEASURED PAVEMENT RESPONSE TO TRANSIENT AIRCRAFT LOADING

A testing program was designed to collect pavement deformation response to aircraft traffic. Linear variable differential transducers (LVDT's) were attached to reference rods anchored at 16, 36, 120, and 209 in. Results were pavement responses, information on how pavement layers accommodate dynamic loads, as well as data that could be used to compare vertical deformations with those predicted by theoretical models. Pavement deformations (at given offset distances) may display a range of possible values depending on the pavement's previous traffic loading. Excepting deformations under the wheels, net extensions were recorded in a zone at least 36 in. Deep. At a depth of 120 in. There is always a net compression. The degree of rebound defines the pavement's initial state for the next application of load. The rebound may have a positive or negative residual. Laboratory tests and procedures recommended in the literature were used to develop input for an n-layered elastic model. Additional input values were assumed to predict measured surface deflections under the wheels of a b-727 aircraft. The pavement response phenomena reported are believed to be significant. They expose important pavement responses that have been minimized in past research. (Author/TRRL)

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 69-79

Subject/Index Terms

Filing Info

  • Accession Number: 00373183
  • Record Type: Publication
  • Source Agency: Norwegian Road Research Laboratory
  • ISBN: 82-519-0480-3
  • Files: ITRD, TRIS
  • Created Date: Jun 30 1983 12:00AM