The anti-shakedown effect

P. R. Donovan, E. Tutumluer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Repetitive loading along a channelized path causes unbound aggregate layers to densify, shakedown, and stabilize with little additional permanent or residual deformation per each wheel pass. Full-scale pavement tests conducted at the Federal Aviation Administration's National Airport Pavement Testing Facility (NAPTF) in the US indicated that a sequential aircraft wheel/gear wander pattern causes residual deformations to be recovered in the unbound aggregate layers. The downward residual deformation caused by a pass of heavily loaded landing gear is canceled by the upward residual deformation resulting from the pass of the same gear offset by wander. This interaction indicates shuffling or rearrangement of the particles in the unbound layer, which in turn reduces the strength of the layer causing future load applications to cause more residual deformation, the "anti-shakedown" effect. This paper analyzes the anti-shakedown effect of the contractive/dilative response of the unbound layers using multi-depth deflectometer data from NAPTF testing.

Original languageEnglish (US)
Title of host publicationAdvances in Transportation Geotechnics - Proceedings of the 1st International Conference on Transportation Geotechnics
Pages111-116
Number of pages6
StatePublished - Dec 1 2008
Event1st International Conference on Transportation Geotechnics, ICTG-1 - Nottingham, United Kingdom
Duration: Aug 25 2008Aug 27 2008

Publication series

NameAdvances in Transportation Geotechnics - Proceedings of the 1st International Conference on Transportation Geotechnics

Other

Other1st International Conference on Transportation Geotechnics, ICTG-1
CountryUnited Kingdom
CityNottingham
Period8/25/088/27/08

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Transportation

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