This work is focused on the assessment of the diagnostic potential of several geophysical methods when applied to the investigation of a rigid airport pavement. The potential and limit of each technique are evaluated as well as the added value deriving from their integration. Firstly, we reconstruct a high-resolution image of the pavement by a large electromagnetic and georadar screening. An advanced processing of georadar data, implemented through the picking of the arrival times of reflections for each profile, provides a quantitative estimation of the deviation between the design and the as-built thickness of layers. Additionally, electrical tomography has been applied to unequivocally identify the anomalous zones, where higher values of resistivity would be associated to porous zones that are prone to degradation and failure. The seismic tomographic survey had the additional purpose to recover the mechanical properties of the pavement in terms of both P- and S-waves and consequently of elastic constants (Poisson's ratio), whose values were consistent with those recovered in literature. The anomalies detected by each technique are consistent in their indications and they can be correlated to failure phenomena occurring at layer interfaces within the pavement structure or to unexpected variations of the layer thicknesses. The cost-effective geophysical campaign has validated the four-layered system deduced from the original design and has been used to reconstruct a high-resolution map of the pavement in order to discriminate fractures, crack-prone areas or areas where the as-built differs from the original design.

Pavement testing by integrated geophysical methods: Feasibility, resolution and diagnostic potential / Orlando, Luciana; Cardarelli, Ettore; Cercato, Michele; DE DONNO, Giorgio; DI GIAMBATTISTA, Luca. - In: JOURNAL OF APPLIED GEOPHYSICS. - ISSN 0926-9851. - STAMPA. - 136:1(2017), pp. 462-473. [10.1016/j.jappgeo.2016.11.024]

Pavement testing by integrated geophysical methods: Feasibility, resolution and diagnostic potential

ORLANDO, Luciana;CARDARELLI, Ettore;CERCATO, MICHELE;DE DONNO, GIORGIO;DI GIAMBATTISTA, LUCA
2017

Abstract

This work is focused on the assessment of the diagnostic potential of several geophysical methods when applied to the investigation of a rigid airport pavement. The potential and limit of each technique are evaluated as well as the added value deriving from their integration. Firstly, we reconstruct a high-resolution image of the pavement by a large electromagnetic and georadar screening. An advanced processing of georadar data, implemented through the picking of the arrival times of reflections for each profile, provides a quantitative estimation of the deviation between the design and the as-built thickness of layers. Additionally, electrical tomography has been applied to unequivocally identify the anomalous zones, where higher values of resistivity would be associated to porous zones that are prone to degradation and failure. The seismic tomographic survey had the additional purpose to recover the mechanical properties of the pavement in terms of both P- and S-waves and consequently of elastic constants (Poisson's ratio), whose values were consistent with those recovered in literature. The anomalies detected by each technique are consistent in their indications and they can be correlated to failure phenomena occurring at layer interfaces within the pavement structure or to unexpected variations of the layer thicknesses. The cost-effective geophysical campaign has validated the four-layered system deduced from the original design and has been used to reconstruct a high-resolution map of the pavement in order to discriminate fractures, crack-prone areas or areas where the as-built differs from the original design.
2017
High-resolution; integrated geophysical methods; airport pavement; EM; GPR; Seismic tomography
01 Pubblicazione su rivista::01a Articolo in rivista
Pavement testing by integrated geophysical methods: Feasibility, resolution and diagnostic potential / Orlando, Luciana; Cardarelli, Ettore; Cercato, Michele; DE DONNO, Giorgio; DI GIAMBATTISTA, Luca. - In: JOURNAL OF APPLIED GEOPHYSICS. - ISSN 0926-9851. - STAMPA. - 136:1(2017), pp. 462-473. [10.1016/j.jappgeo.2016.11.024]
File allegati a questo prodotto
File Dimensione Formato  
Orlando_Pavement-testing-by_2017.pdf

solo gestori archivio

Note: articolo
Tipologia: Documento in Post-print (versione successiva alla peer review e accettata per la pubblicazione)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 2.14 MB
Formato Adobe PDF
2.14 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/924383
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 11
social impact