A new study investigates an unburied offshore snaked pipeline behavior under various types of seismic faults. The snaking of the pipeline is caused by the thermal/pressure expansion and soil friction. The snaking takes place at a certain distance from the pipeline's unrestrained end and gradually increases towards the restraint. It is shown that longitudinal seismic faults have less effect on a straight pipeline than a snaked pipeline. The new seismic analysis demonstrates that in increase of ground displacement causes a very small change in bending and longitudinal stresses. The new approach results in a safe, subsea pipeline construction and operation with a significant cost reduction.
Behavior of marine pipelines under seismic faults
Das Verhalten von Meerespipelines bei seismischen Einflüssen
Ocean Engineering ; 27 , 5 ; 473-487
2000
15 Seiten, 8 Bilder, 2 Tabellen, 9 Quellen
Aufsatz (Zeitschrift)
Englisch
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