NDLI: Numerical Investigation of Electro-Kinetic Effect on Pipe-Soil Interaction

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Joshua, Hakuri Nwen Kara, Fuat
Copyright Year	2017
Abstract	The soft soil content and the high pressure and high temperature (HP/HT) of the operating fliud significantly account for the displacement of subsea pipelines. The abiltiy of the pipeline to resist displacement depents on the soil strength. Increasing the pipe-soil resistance will significantly reduced the pipeline displacement. One method used to increase soil shear strength is the Electro-kinetic (EK) process. This is applied to increase strength of onshore and offshore soil foundations. This paper uses ABAQUS software tool to investigate EK effect on axial displacement of pipeline due to pipe-soil interaction. Studies on both EK treated soil and non-EK treated soil are conducted and compared. Electro-osmosis using the varous flow process is demonstrated and effectively validated. The paper also demontrated the dynamic process due to axial pulling of the pipeline. The resistance developed for both conditions were determined and compared. Due to axial pulling of the pipeline from the soil, the present numerical results shows a remarkable increase of over 100% in frictional resistance to pipeline displacement.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
File Format	PDF
ISBN	9780791857700
DOI	10.1115/OMAE2017-61003
Volume Number	Volume 5B: Pipelines, Risers, and Subsea Systems
Conference Proceedings	ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2017-06-25
Publisher Place	Trondheim, Norway
Access Restriction	Subscribed
Subject Keyword	Soil shear strength Pipelines Computer software Electrokinetics High temperature Flow (dynamics) Displacement High pressure (physics) Friction Skin friction (fluid dynamics) Electroosmosis Soil Ocean engineering Pipes Underwater pipelines
Content Type	Text
Resource Type	Article

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