Ultimate behavior of rigid pavements under different soel erosion scenarios using FE approach

S. A. Galal, S. A. El-Kholy

Research output: Contribution to journalArticlepeer-review

Abstract

The AASHTO concrete pavement design procedure evaluates a candidate pavement design with respect to two potential failure modes: fatigue and erosion. Damage of the pavement is mostly caused by soil erosion beneath the pavement. Moisture trapped in the soil typically reduces subgrade strength and causes loss of slab support due to subbase and subgrade erosion and pumping, which results in pavement settling, faulting at joints and corner breaks. The main objective of this research is to investigate the influence of several parameters such as different scenarios and percentage numbers of soil erosion, slab dimension and slab thickness on the structural behavior of slab pavements. Furthermore, a comparison between the pavement responses resulted from the analysis in this study and the pavement responses resulted from the AASHTO design procedure was conducted. The analysis' of the results showed that there is a significant effect of these parameters in the ultimate behavior of the rigid pavements under different soil erosion scenarios.

Original languageEnglish
Pages (from-to)471-490
Number of pages20
JournalJournal of Engineering and Applied Science
Volume57
Issue number6
Publication statusPublished - Dec 2010
Externally publishedYes

Keywords

  • Joint faulting
  • Loss of slab support
  • Rigid pavement
  • Soil erosion and pumping
  • Stresses and deflection in rigid pavement

ASJC Scopus subject areas

  • General Engineering

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