Analysis of phase data from ground vibration measurements above a leaking plastic water pipe

Scussel, O; Brennan, MJ; Iwanaga, MK; Almeida, FCL; Karimi, M; Muggleton, JM; Joseph, PF; Rustighi, E

Analysis of phase data from ground vibration measurements above a leaking plastic water pipe

Scussel, O Brennan, MJ Iwanaga, MK Almeida, FCL Karimi, M

Muggleton, JM Joseph, PF Rustighi, E

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Publisher:: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Journal of Sound and Vibration, 2023, 564
Issue Date:: 2023-11-10

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Field	Value	Language
dc.contributor.author	Scussel, O
dc.contributor.author	Brennan, MJ
dc.contributor.author	Iwanaga, MK
dc.contributor.author	Almeida, FCL
dc.contributor.author	Karimi, M https://orcid.org/0000-0002-2949-5364
dc.contributor.author	Muggleton, JM
dc.contributor.author	Joseph, PF
dc.contributor.author	Rustighi, E
dc.date.accessioned	2024-01-09T05:54:46Z
dc.date.available	2024-01-09T05:54:46Z
dc.date.issued	2023-11-10
dc.identifier.citation	Journal of Sound and Vibration, 2023, 564
dc.identifier.issn	0022-460X
dc.identifier.issn	1095-8568
dc.identifier.uri	http://hdl.handle.net/10453/174161
dc.description.abstract	One way to locate a buried plastic water pipe is to measure the surface vibration due to a leak in the region above the pipe, and to process the data to infer the pipe location. This paper investigates the physical mechanisms that propagate leak noise through the pipe and the surrounding soil to the ground surface. An analysis is carried out of the relative phase between vertical ground vibration measurements at points in a grid above the pipe. The study involves experimental measurements from a site in the UK with a more realistic leak mechanism compared to recent research, a simplified analytical model to gain insight into the underlying physics, and a numerical model to validate some of the assumptions made in the derivation of the analytical model. Three waves are principally involved in propagating leak noise to the ground surface from the pipe, namely the predominantly fluid-borne wave in the pipe, and the shear and compressional waves in the soil radiating from the pipe. Their influence on the ground surface vibration is investigated through measured and simulated phase contours over a rectangular grid of surface velocity measurements. It is shown how shear and compressional waves combine to affect the shape of the lines of constant phase on the ground. The results demonstrate the potential of the proposed analytical and numerical models to investigate wave radiation from buried water pipes, and possible pipe location strategies using phase data from surface vibration measurements.
dc.language	English
dc.publisher	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.relation.ispartof	Journal of Sound and Vibration
dc.relation.isbasedon	10.1016/j.jsv.2023.117873
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 09 Engineering
dc.subject.classification	Acoustics
dc.subject.classification	40 Engineering
dc.subject.classification	51 Physical sciences
dc.title	Analysis of phase data from ground vibration measurements above a leaking plastic water pipe
dc.type	Journal Article
utslib.citation.volume	564
utslib.for	02 Physical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2024-01-09T05:54:44Z
pubs.publication-status	Published
pubs.volume	564

Abstract:

One way to locate a buried plastic water pipe is to measure the surface vibration due to a leak in the region above the pipe, and to process the data to infer the pipe location. This paper investigates the physical mechanisms that propagate leak noise through the pipe and the surrounding soil to the ground surface. An analysis is carried out of the relative phase between vertical ground vibration measurements at points in a grid above the pipe. The study involves experimental measurements from a site in the UK with a more realistic leak mechanism compared to recent research, a simplified analytical model to gain insight into the underlying physics, and a numerical model to validate some of the assumptions made in the derivation of the analytical model. Three waves are principally involved in propagating leak noise to the ground surface from the pipe, namely the predominantly fluid-borne wave in the pipe, and the shear and compressional waves in the soil radiating from the pipe. Their influence on the ground surface vibration is investigated through measured and simulated phase contours over a rectangular grid of surface velocity measurements. It is shown how shear and compressional waves combine to affect the shape of the lines of constant phase on the ground. The results demonstrate the potential of the proposed analytical and numerical models to investigate wave radiation from buried water pipes, and possible pipe location strategies using phase data from surface vibration measurements.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/174161