On the effects of soil properties on leak noise propagation in plastic water distribution pipes

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dc.contributor.authorBrennan, M. J. [UNESP]
dc.contributor.authorKarimi, M.
dc.contributor.authorMuggleton, J. M.
dc.contributor.authorAlmeida, F. C.L. [UNESP]
dc.contributor.authorKroll de Lima, F. [UNESP]
dc.contributor.authorAyala, P. C. [UNESP]
dc.contributor.authorObata, D. [UNESP]
dc.contributor.authorPaschoalini, A. T. [UNESP]
dc.contributor.authorKessissoglou, N.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionAustralia
dc.contributor.institutionUniversity of Southampton
dc.date.accessioned2018-12-11T16:53:18Z
dc.date.available2018-12-11T16:53:18Z
dc.date.issued2018-08-04
dc.description.abstractIn many countries, leaks are located in water distribution pipes by using the cross-correlation of pipe vibration measured either side of a suspected leak. However, in modern plastic pipes this can be problematic due to strong coupling between the water, the pipe and the soil, affecting the propagation of leak noise within the pipe. This paper concerns an analytical, numerical and experimental investigation into the way in which soil properties influence leak noise propagation in buried plastic water pipes. The analytical model allows a detailed investigation into the physical effects of the soil on leak noise (wave) propagation in the pipe, in particular on the wave-speed and wave attenuation. Results highlight that, in addition to the pipe hoop stiffness, the shear stiffness of the soil can have a significant effect on the wave-speed in the pipe. Experimental measurements were conducted at two different sites - one in the UK and the other in Brazil. In the UK system, both dilatational and shear waves in the soil propagate away from the pipe, resulting in large wave attenuation in the pipe. However, in the Brazilian system, only shear waves propagate resulting in smaller wave attenuation in the pipe.en
dc.description.affiliationDepartment of Mechanical Engineering UNESP
dc.description.affiliationSchool of Mechanical and Manufacturing Engineering University of New South Wales Australia
dc.description.affiliationInstitute of Sound and Vibration Research University of Southampton
dc.description.affiliationDepartment of Biosystems Engineering UNESP
dc.description.affiliationUnespDepartment of Mechanical Engineering UNESP
dc.description.affiliationUnespDepartment of Biosystems Engineering UNESP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipEngineering and Physical Sciences Research Council
dc.description.sponsorshipIdFAPESP: 2013/50412-3
dc.description.sponsorshipIdFAPESP: 2015/50312-4
dc.description.sponsorshipIdEngineering and Physical Sciences Research Council: EP/K021699/1
dc.format.extent120-133
dc.identifierhttp://dx.doi.org/10.1016/j.jsv.2018.03.027
dc.identifier.citationJournal of Sound and Vibration, v. 427, p. 120-133.
dc.identifier.doi10.1016/j.jsv.2018.03.027
dc.identifier.issn1095-8568
dc.identifier.issn0022-460X
dc.identifier.scopus2-s2.0-85047078304
dc.identifier.urihttp://hdl.handle.net/11449/171001
dc.language.isoeng
dc.relation.ispartofJournal of Sound and Vibration
dc.relation.ispartofsjr1,360
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectPipe vibro-acoustics
dc.subjectWater leak detection
dc.subjectWave propagation
dc.titleOn the effects of soil properties on leak noise propagation in plastic water distribution pipesen
dc.typeArtigo
unesp.author.lattes8272223904033177[8]
unesp.author.orcid0000-0003-1887-2678[8]

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