FDTD simulation of the GPR signal for effective inspection of pavement damages

Benedetto, Andrea, Tosti, Fabio, Pajewski, Lara, D'Amico, Fabrizio and Kusayanagi, Wolfgang (2014) FDTD simulation of the GPR signal for effective inspection of pavement damages. In: 15th International Conference on Ground Penetrating Radar, GPR 2014, 30 Jun 2014 - 04 Jul 2014, Brussels, Belgium.

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Abstract

Ground-penetrating radar (GPR) is a wide ranging non-destructive tool used in many fields of application including effective pavement engineering surveys. Despite the high potential and the consolidated results obtained over the past decades, pavement distress manuals based on visual inspections are still widely used, so that only the effects and not the causes of faults are generally considered. In such context, simulation can represent an effective solution for supporting engineers and decision-makers in understanding the deep responses of both revealed and unrevealed damages. In this study, the use of FDTD simulation of the GPR signal is analyzed by simulating three different types of flexible pavement at two different center frequencies of investigation commonly used for road surveys. Comparisons with the undisturbed modelled pavement sections are carried out showing promising agreements with theoretical expectations, and good chances for detecting the shape of damages are demonstrated.

Item Type: Conference or Workshop Item (Paper)
ISBN: 9781479967896
Identifier: 10.1109/ICGPR.2014.6970477
Page Range: pp. 513-518
Uncontrolled Keywords: FDTD simulation; ground-penetrating radar; pavement damages; pavement distress manual
Subjects: Construction and engineering > Built environment
Construction and engineering > Civil and structural engineering
Computing
Construction and engineering
Depositing User: Fabio Tosti
Date Deposited: 26 May 2016 23:11
Last Modified: 01 Aug 2017 13:05
URI: http://repository.uwl.ac.uk/id/eprint/2202

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