Journal ArticleDOI
Wave pressures and uplift forces on and scour around submarine pipeline in clayey soil
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In this article, the authors investigated wave-induced pressures and uplift forces on a submarine pipeline (exposed, half buried and fully buried) in clayey soil of different consistency index both in regular and random waves.About:
This article is published in Ocean Engineering.The article was published on 2003-02-01. It has received 25 citations till now. The article focuses on the topics: Submarine pipeline & Pore water pressure.read more
Citations
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Journal ArticleDOI
Wave force variation due to burial of submarine pipelines in uniformly graded and low hydraulic conductivity soil
TL;DR: In this paper, the wave force variation for different buried conditions of the pipeline depends on the wave height, wave period, water depth, engineering and hydraulic properties of the seabed soil, like hydraulic conductivity, porosity, and submerged soil density.
Proceedings ArticleDOI
Inline and Vertical Wave Force Variation due to Burial of Submarine Pipeline in Random Wave Fields
TL;DR: In this paper, a 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.
Journal ArticleDOI
Experimental Study on Local Scour and Related Mechanical Effects at River-Crossing Underwater Oil and Gas Pipelines
TL;DR: In this paper, a water-damage physical model was established to investigate the characteristics of the riverbed scour profile and the pipeline force when the pipeline was buried at different depths under the condition of different particle size riverbed sediment.
Journal ArticleDOI
Evolution features of riverbeds near underwater crossing line pipes: An experimental study
TL;DR: In this paper, the evolution of the riverbed near underwater crossing line pipes and its negative effects were investigated and the formation mechanism of local scour at underwater crossing-line pipes was revealed.
Proceedings ArticleDOI
Wave Induced Uplift Forces Acting on Half-Buried Submarine Pipeline in Sandy Seabed by Numerical Methods
N Taleb Bidokhti,E Afzali +1 more
TL;DR: In this paper, a two dimensional finite element (FEM) and boundary integral equation (BIEM) were applied to determine the uplift forces on half-buried submarine pipeline in a sandy seabed.
References
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Journal ArticleDOI
Erosion of mud/sand mixtures
Helen Mitchener,Hilde Torfs +1 more
TL;DR: In this article, the authors investigated the relationship between the erosional properties of combined mud and sand sediments, and found that adding sand to mud, or vice versa, increases the erosion resistance and reduces the erosion rates when the critical shear stress for erosion is exceeded.
Journal ArticleDOI
Scour Below Pipelines in Waves
B. Mutiu Sumer,Jørgen Fredsøe +1 more
TL;DR: The effect of leewake of the pipe is the key element in the scour process, and it is demoed in this article, where the results of an experimental investigation on scour below pipelines exposed to waves.
Journal ArticleDOI
Cohesive Material Erosion by Unidirectional Current
TL;DR: In this paper, the initiation of motion of consolidated cohesive sediments under a unidirectional flow of clear water was studied in a flume-tunnel capable of providing a bed shear stress up to 26 Pa and a velocity of 3.5 m/s, 3 mm above the bed.
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Seepage force on a pipeline buried in a poroelastic seabed under wave loadings
TL;DR: The water wave induced seepage force on a pipeline buried in the seabed is investigated in this paper, where the pipeline is assumed to be rigid and not supported by any anchoring force.
Journal ArticleDOI
Wave-induced uplift force on a submarine pipeline buried in a compressible seabed
TL;DR: In this paper, a finite element simulation of the wave-induced hydrodynamic uplift force acting on a submarine pipeline buried in sandy seabed sediments subject to continuous loading of sinusoidal surface waves is presented.