NDLI: Inline and Vertical Wave Force Variation due to Burial of Submarine Pipeline in Random Wave Fields

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Neelamani, S. Al-Banaa, K.
Copyright Year	2011
Abstract	Marine pipelines encounter significant dynamic forces due to the action of waves. In order to reduce such forces, they are buried below the seabed. The wave force on the pipeline at any depth of burial for the given hydrodynamic condition depends on the properties of the sea bed soil. Physical model is used for assessing the hydrodynamic force on the pipeline for a wide range of random wave conditions, for different burial depths and in four types of soils. It is found that for all the four soil types, the horizontal force reduces with increase in depth of burial, whereas the vertical force generally increases up to certain depth of burial, mainly due to the significant change in the magnitude as well as the phase lag between the pore water pressures in the vertical direction. Among the soils, well graded soil is good for half burial of pipeline, since the least vertical force occurs for this soil. On the other hand, uniformly graded and low hydraulic conductivity soil attracts the maximum vertical force for half burial. On the other hand, such soil is good for full burial or further increase of burial, since it attracts less vertical force when compared to the other soils. The results of this study will help the submarine pipeline design engineers to select the minimum safe burial depth in a range of cohesion-less soil.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	391
Ending Page	399
Page Count	9
File Format	PDF
ISBN	9780791844366
DOI	10.1115/OMAE2011-49431
Volume Number	Volume 4: Pipeline and Riser Technology
Conference Proceedings	ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2011-06-19
Publisher Place	Rotterdam, The Netherlands
Access Restriction	Subscribed
Subject Keyword	Design Water pressure Cohesion Pipelines Soil Wave forces Fluid-dynamic forces Hydraulic conductivity Engineers Underwater pipelines Waves Seabed
Content Type	Text
Resource Type	Article

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Variation in Wave Forces on Buried Submarine Pipeline in Different Types of Soils in Random Waves

Influence of Proximity of the Seabed on Hydrodynamic Forces on a Submarine Piggyback Pipeline Under Wave Action

Numerical Study of Hydrodynamic Forces on a Submarine Piggyback Pipeline Under Wave Action

Modelling of Periodic and Random Wave Forces on Submarine Pipelines

Dynamic Stability Response of Piggyback Pipelines

Hydrodynamic Forces on Subsea Pipelines due to Orbital Wave Effects

A Re-Examination of the Hydrodynamic Forces Acting on Partially-Buried Submarine Pipelines

Hydrodynamic Forces due to Oblique Wave and Current Loading on Untrenched Subsea Pipelines

The Effect of the Seabed Proximity on the Hydrodynamic Forces of the Piggyback Pipeline Under Wave Action

Inline and Vertical Wave Force Variation due to Burial of Submarine Pipeline in Random Wave Fields

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