Leakage in buried pipes is one of the main concerns for water companies due to the scarcity of potable water sources. Older metallic pipelines have been replaced by plastic pipes in such systems, which makes it more difficult to locate leaks using acoustics and vibration. This is mainly because of the high attenuation of leak signals caused by the damping in the pipe-wall. To investigate acoustic methods in leak location in controlled conditions, a bespoke test rig was constructed in the UK. In this paper, data from this test-rig is used to discuss some issues that arise when using two contemporary correlators. Of particular interest, is the way in which a resonance in the system can have a profound effect on the estimate of the position of the leak depending on the way in which the leak noise signals are processed.
The Dynamic Behaviour of a Buried Water Pipe and its Effect on Leak Location Using Acoustic Methods
Damage Assessment of Structures X, DAMAS, International Conference on Damage Assessment of Structures, 10 ; 1194-1201
Key Engineering Materials ; 569-570
2013
8 Seiten
Conference paper
English
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