Influence of Design Parameters of Highway on the Deformation

Abstract:

Based on the geometry irregularity of pavement, an expression of the traffic load was put forward. The influence law of design parameters of each part of highway and pavement geometry irregularity on vertical deformation of highway was discussed by the three-dimension finite element numerical analysis. The research shows that the vertical deformation range of highway under the action of traffic load is generally semi-circular; the influence of surface stiffness on vertical deformation is different in different horizontal positions of surface; the influence of subgrade stiffness and foundation stiffness on vertical deformation is remarkable, but that of course stiffness is small; the rational matching of all parts of highway can effectively reduce the vertical deformation; with the increase of geometric irregularity index, the vertical deformation increases significantly.

• Periodical: Applied Mechanics and Materials (Volumes 178-181)
• Pages: 1658-1662
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.178-181.1658
• Online since: May 2012
• Authors: Yan Mei Zhang, Xu Dong Zhang
• Keywords: Deformation, Design Parameter, Geometric Irregularities, Highway, Traffic Load

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