Fluid-pipeline-soil interaction at the seabed

Joe Gain Tom Jr

Research output: ThesisDoctoral Thesis

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Abstract

In this thesis, two particular pipeline design issues on the fluid-structure-soil interaction spectrum are considered : (i) the on­ bottom stability and safe operation of subsea pipelines and cables, and (ii) predicting seabed trenching within the touchdown zone of risers connected to floating vessels. The first three chapters focus on pipeline-soil interaction with regard to the soil resistance available to prevent pipeline movement in various scenarios. The following two chapters explore the fluid mechanics around an oscillating two-dimensional cylinder representative of a riser near the seabed. In the final chapter, an experimental study on trenching beneath an oscillating cylinder is presented.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date27 Aug 2018
DOIs
Publication statusUnpublished - 2018

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Pipelines
Trenching
Soils
Fluids
Oscillating cylinders
Soil structure interactions
Fluid mechanics
Cables

Cite this

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title = "Fluid-pipeline-soil interaction at the seabed",
abstract = "In this thesis, two particular pipeline design issues on the fluid-structure-soil interaction spectrum are considered : (i) the on­ bottom stability and safe operation of subsea pipelines and cables, and (ii) predicting seabed trenching within the touchdown zone of risers connected to floating vessels. The first three chapters focus on pipeline-soil interaction with regard to the soil resistance available to prevent pipeline movement in various scenarios. The following two chapters explore the fluid mechanics around an oscillating two-dimensional cylinder representative of a riser near the seabed. In the final chapter, an experimental study on trenching beneath an oscillating cylinder is presented.",
keywords = "Pipelines, Risers, Trenching, Sediment transport, Scour",
author = "{Tom Jr}, {Joe Gain}",
year = "2018",
doi = "10.26182/5ba479ce5348d",
language = "English",
school = "The University of Western Australia",

}

Tom Jr, JG 2018, 'Fluid-pipeline-soil interaction at the seabed', Doctor of Philosophy, The University of Western Australia. https://doi.org/10.26182/5ba479ce5348d

Fluid-pipeline-soil interaction at the seabed. / Tom Jr, Joe Gain.

2018.

Research output: ThesisDoctoral Thesis

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AU - Tom Jr, Joe Gain

PY - 2018

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N2 - In this thesis, two particular pipeline design issues on the fluid-structure-soil interaction spectrum are considered : (i) the on­ bottom stability and safe operation of subsea pipelines and cables, and (ii) predicting seabed trenching within the touchdown zone of risers connected to floating vessels. The first three chapters focus on pipeline-soil interaction with regard to the soil resistance available to prevent pipeline movement in various scenarios. The following two chapters explore the fluid mechanics around an oscillating two-dimensional cylinder representative of a riser near the seabed. In the final chapter, an experimental study on trenching beneath an oscillating cylinder is presented.

AB - In this thesis, two particular pipeline design issues on the fluid-structure-soil interaction spectrum are considered : (i) the on­ bottom stability and safe operation of subsea pipelines and cables, and (ii) predicting seabed trenching within the touchdown zone of risers connected to floating vessels. The first three chapters focus on pipeline-soil interaction with regard to the soil resistance available to prevent pipeline movement in various scenarios. The following two chapters explore the fluid mechanics around an oscillating two-dimensional cylinder representative of a riser near the seabed. In the final chapter, an experimental study on trenching beneath an oscillating cylinder is presented.

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KW - Trenching

KW - Sediment transport

KW - Scour

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DO - 10.26182/5ba479ce5348d

M3 - Doctoral Thesis

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