Pipelines crossing rivers, swamps and marine areas that consist of sandy soils with low or zero shear strength will experience a lifting effect if the pipeline is subjected to movement or vibration. Considerable knowledge is available concerning marine pipelines that encounter liquefaction of backfill as a result of earthquakes or wave action. This liquefaction effect can cause pipelines to rise in the backfill when sufficient hold-down is not provided. However this paper pertains to river crossings consisting of sand, and provides a summary of tests conducted to determine the effects of vibration on the stability of pipelines with various specific gravities in granular sand.
Vibrating marine pipelines in pure sand
Schwingungsbeanspruchte Rohrleitungen in reinem Sand am Meeresboden
Pipeline Engineering Symp. 1987, Petroleum Div. of the ASME ; PD-6 , Feb ; 221-226
1987
6 Seiten, 8 Bilder
Aufsatz (Konferenz)
Englisch
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