Article,

Modeling the Deflection Basin of Flexible Highway Pavements by Gene Expression Programming

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Journal of Applied Sciences, 5 (2): 309--314 (2005)

Abstract

Gene Expression Programming (GEP) is used in modelling the deflection basins measured on the surface of the flexible pavements. Back calculation of the pavement layer moduli are well-accepted procedures for the evaluation of the structural capacity of pavements. The ultimate aim of the backcalculation process from Nondestructive Testing (NDT) results is to estimate the pavement material properties. Using back calculation analysis, in situ material properties can be back calculated from the measured field data through appropriate analysis techniques. In order to back calculate reliable moduli, deflection basin must be realistically modelled. In this study, GEP was used to model the deflection basin characteristics. Experimental deflection data groups from NDT are used to show the capability of the GEP approach in modelling the deflection bowl. This approach can be easily and realistically performed to solve the problems which do not have a formulation or function about the solution.

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