Author(s): Wei Zeng; Si Tran Nguyen Nguyen; Martin Lambert; Jinzhe Gong

Linked Author(s): Martin Lambert

Keywords: Pipe condition assessment; Hydroacoustic waves; Impulse response; Hydraulic transient

Abstract: Condition assessment of water transmission pipelines is of important necessity for prioritizing rehabilitation. This paper outlines a pilot field study of the non-invasive and non-destructive condition assessment using hydroacoustic noise. The hydroacoustic noise was generated at a discharge valve due to the turbulence of the discharge, and it was measured by pressure transducers at some access points (e. g., air valves) along the field pipe. A signal deconvolution process was then applied to transfer the hydroacoustic noise to a compositional impulse response function (IRF) which is composed of IRFs of different pipe sections. From the field study, it shows hydroacoustic noise can replace traditional hydraulic transient waves for pipe condition assessment.

DOI: https://doi.org/10.3850/iahr-hic2483430201-21

Year: 2024