Seabed irregularity in subsea pipeline spanning
- Hudson Engineering Corp., Houston, TX (United States)
This paper presents an analytical method and investigation results of subsea pipelines span/stress/strain/deflection determinations for a pipeline laying on an irregular bottom. Parameters of interest are calculated for the pipeline immediately after laying (installation conditions) and also for operational loads. Investigated operational loads are pipeline contents weight, pipeline internal and external pressure. Computer software to calculate pipeline spanning parameters have been developed in practical engineering form and a sample is presented in the paper. An original mathematical model for the span system is presented in this paper. Predicted pipe spans/axial tensions are the initial data to investigate sea current influence yielding span length limits due to pipeline lateral vibrations induced by resonant vortex shedding. The analytical method and procedure may be used to assist selection of subsea pipeline routes.
- OSTI ID:
- 237905
- Report Number(s):
- CONF-950604--; ISBN 1-880653-18-4
- Country of Publication:
- United States
- Language:
- English
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