Modelling the soil resistance on seabed pipelines during large cycles of lateral movement

White, David; Cheuk, C.Y.

doi:10.1016/j.marstruc.2007.05.001

Cited by 84 publications

(56 citation statements)

References 15 publications

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“…Based on a large number of field experiments and laboratory tests, a series of pipe-seabed lateral interaction models have been developed by Wagner et al (1989), Verley and Lund (1995), Bruton et al (2006), White and Cheuk (2008) to predict the seabed resistance to lateral pipeline movements. These empirical models, considering the effects of soil strength, loading history and pipe embedment on the lateral seabed resistance, are far more complicated than simple coulomb friction model, and are comparatively applicable to large lateral movements of the pipeline.…”

Section: Pipe-seabed Lateral Interaction Modelmentioning

confidence: 99%

“…For normally soft clay in areas of deepwater, the friction coefficient lies in the range 0.2-0.8, whilst the displacement to mobilise the resistance, y breakout , is typically 0.1 pipe diameters, therefore, the lateral shear stiffness of the seabed, k s , can be roughly estimated (White and Cheuk 2008). The values of soil model parameters are listed in Table 2.…”

Section: Soil Model Parametersmentioning

confidence: 99%

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Influences of pipe–soil interaction on dynamic behaviour of deepwater S-lay pipeline under random sea states

Gong

2016

Ships and Offshore Structures

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The pipe-soil interactions have an important influence on the dynamic behaviour of offshore pipelines in the touchdown zone (TDZ) during deepwater S-lay. This paper mainly aims to reveal the dynamic behaviour of the pipeline in the TDZ, and its actual dynamic lay effects. A full finite element model for deepwater S-lay systems is primarily developed to simulate the dynamic responses of offshore pipeline from the pipelay vessel via the stinger to the seabed, in which pipelay vessel motions, pipeline hydrodynamics, clashing contacts between the pipeline and the stinger rollers and pipe-seabed interactions are considered particularly. The numerical analysis of an illustrative case for a gas export pipeline being installed to a water depth of 1500 m in the South China Sea is carried out in the time domain using the commercial computer code OrcaFlex. The influences of seabed soil models, soil characteristics, submerged self-weight of the pipe, surface waves, and pipelay vessel motions on the dynamic behaviour of the pipeline in the TDZ have been quantitatively studied in view of non-linear hysteretic soil model. The results indicate that the soil characteristics and the pipelay vessel motions induced by the surface wave have great influence on the bending moment and embedment of the pipeline, and the seabed resistance.

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Section: Pipe-seabed Lateral Interaction Modelmentioning

confidence: 99%

Section: Soil Model Parametersmentioning

confidence: 99%

Influences of pipe–soil interaction on dynamic behaviour of deepwater S-lay pipeline under random sea states

Gong

2016

Ships and Offshore Structures

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“…White and Cheuk (2008) studied the soil-pipe interaction over soft cohesive soil 1097 (kaolin clay), where the lateral motion was about 10-20 times the pipe diameter, to allow the pipe freely to 1098 buckle laterally in a controlled manner caused by thermal expansion. In this case, self-burial is unwanted, 1099 and a detailed description is given of the berm development around the pipe, when the pipe is moving back 1100 and forth and ploughing the bed.…”

mentioning

confidence: 99%

Pipeline–Seabed Interaction

Fredsøe

2016

J. Waterway, Port, Coastal, Ocean Eng.

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“…Recommended values of the Coulomb friction coefficient, μ, lie in the range 0.2-0.8, while the displacement to mobilise this resistance is typically 0.1 pipe diameters (Lyons 1973;Wagner et al 1987;Brennodden et al 1989;White and Cheuk 2008 The conventional lateral riser-soil design procedure is to model the interaction with spring links at intervals along the riser flow-line. These links provide a bilinear soil resistance relationship in the lateral direction, as shown in Figure 3 (Elosta et al 2013).…”

Section: Randolph and Quigginmentioning

confidence: 99%

Wave loading fatigue reliability and uncertainty analyses for geotechnical pipeline models

Elosta

Huang

Incecik

2013

Ships and Offshore Structures

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The challenges involved with the fatigue damage assessment of a catenary pipeline in the touchdown zone (TDZ) are primarily because of the non-linear behaviour of pipe-seabed interaction and considerable uncertainty in geotechnical model parameters. The research undertaken in this study investigates the sensitivity of fatigue performance to geotechnical parameters through a parametric study. Furthermore, this paper presents the probability of failure associated with fatigue analysis of a catenary pipeline in the TDZ due to the uncertainty in seabed response model and geotechnical parameters. A first-order reliability method is used for predicting the fatigue safety index. The fatigue analysis results prove that the confounding results indicated by the previous research studies on the catenary pipeline in the TDZ are due to different geotechnical parameters imposed with the soil model. The main benefit of employing a reliability-based fatigue analysis framework is that it enhances the confidence in the steel catenary riser analysis with seabed interaction

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Modelling the soil resistance on seabed pipelines during large cycles of lateral movement

Cited by 84 publications

References 15 publications

Influences of pipe–soil interaction on dynamic behaviour of deepwater S-lay pipeline under random sea states

Influences of pipe–soil interaction on dynamic behaviour of deepwater S-lay pipeline under random sea states

Pipeline–Seabed Interaction

Wave loading fatigue reliability and uncertainty analyses for geotechnical pipeline models

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