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| Titel |
Detection of a Misaligned Broken Pipe by Electromagnetic Interaction |
| VerfasserIn |
Pietro Paolo Di Gregorio, Fabrizio Frezza, Fabio Mangini, Vincenzo Ferrara |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250137283
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| Publikation (Nr.) |
 EGU/EGU2016-18501.pdf |
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| Zusammenfassung |
| The study we are presenting concerns electromagnetic scattering of a plane wave due to the
presence of a misaligned broken pipe buried in a half-space occupied by cement and by
asphalt/ground, for civil-engineering applications. In order to simulate a realistic scenario, the
pipe is supposed cylindrical and made of metallic or poly-vinyl chloride (PVC) material
whose electromagnetic properties are known in the literature and dimensions are the most
used in civil-engineering applications. We consider the longitudinal axis of the pipe running
parallel to the air-cement interface. We suppose, after the break of the pipe, that the
longitudinal axes of the two parts move on a plane parallel to the separation interface, in
opposite directions.
The study focuses on the electromagnetic response of the scattered electric field along a
line above the interface of the media considering different distances between the
longitudinal axis of the tubes in two cases: PVC and metallic material. To accomplish the
study, a commercially available simulator based on the Finite Element Method
(FEM) is adopted and a circularly-polarized plane wave impinging normally to
the interface is considered. This kind of study could be useful for monitoring the
status of buried pipes using ground penetrating radar (GPR) techniques in many
applications of Civil Engineering without the need to intervene destructively in the
structure.
Acknowledgement
This work is a contribution to COST Action TU1208 "Civil Engineering Applications of
Ground Penetrating Radar" (www.GPRadar.eu, www.cost.eu). |
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