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Displaying records 139 through 139 of 2180
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Title: A vibrating pig for monitoring the support condition of buried and subsea pipelines
Category: Pigsource Papers
Downloadable: Yes 
Catalog No.: pg3126e
Date of Publication: 1992
Price: $25.00 US
Authors: Dr H E M Hunt, Dr U G K pke
Abstract: This paper describes a method for monitoring the variation in support condition of pipelines using a vibration technique. The method is useful for detecting poor support of buried pipelines and for detecting spanning and depth of cover in subsea lines. Variation in pipe-support condition leads to an increased likelihood of pipe damage. Under roadways, poorly-supported pipes may be damaged by vehicle loading. At sea, spanned sections of pipe are vulnerable to ocean-current loading, and also to snagging by stray anchors in shallow waters.
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