An Energy-Based Pipe-Soil Interaction Model

Brennodden, Harald; Lieng, Jon Tore; Sotberg, T.; Verley, Richard

doi:10.4043/6057-ms

Cited by 38 publications

(25 citation statements)

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“…Since 1980's, many foreign scientific institutes [1][2][3][4][5][6] have conducted the further research to the pipe/soil interaction of the untrenched pipe by the cyclic loading. The main conclusions are: the hydrodynamic force induced by wave and current can lead to the pipe's additional penetration, and the soil lateral moundings beneath the pipe will take place when the pipe's lateral displacement happens, these will cause that the soil's lateral resistance to the pipe is larger than Coulomb friction force, so the lateral resistance coefficient larger than Coulomb friction coefficient.…”

Section: Fig1 Pipe/soil Interactionmentioning

confidence: 99%

The Analysis of Pipeline’s Penetration Laid on the Elastic-Plastic Seabed Based on the ABAQUS Software

Ren

Liu

2013

AMR

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Abstract. The pipeline's stability is the key problem of submarine pipeline's design. In order to supply the theory basis for the pipeline's design, the ABAQUS software has been adopted to analyze the pipe/soil system. The Ramberg-Osgood model has been adopted to simulate the seabed; the contact pair also adopted to simulate the pipe/soil system, the dynamic boundary contact problem of pipe embedded into the seabed has been analyzed. The computation has been operated according to change pipe's subweight, environment load, pipe's diameter, yielding stress and so on. The computation results have shown that these parameters have effects on the pipe's penetration.

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Section: Fig1 Pipe/soil Interactionmentioning

confidence: 99%

The Analysis of Pipeline’s Penetration Laid on the Elastic-Plastic Seabed Based on the ABAQUS Software

Ren

Liu

2013

AMR

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“…This line can be regarded as the critical line for pipe onbottom instability. However, in the previous experiments (Allen et al, 1989;Brennodden et al, 1986;Wagner et al, 1987;Brennodden et al, 1989), mechanical actuator was used to simulate the real hydrodynamic forces upon pipelines. So the pipe-soil interaction models obtained by the experiments do not include wave parameters (see Eqs.…”

Section: Comparison With Previous Experimentsmentioning

confidence: 99%

“…However, in the latter model (energy based pipe-soil interaction, Brennodden et al, 1989), F R is relative to the work done by pipe during its movement. These experimental results and the models deduced from the results form an important basis for today's regulations regarding pipeline stability design (Det norske Veritas, 1988).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, precisely speaking, the wave-induced on-bottom stability of the submarine pipeline involves the interaction of wave, soil and pipe, not only pipe-soil interaction. Additionally, in the above pipe-soil interaction models (Wagner et al, 1987;Brennodden et al, 1989), numerous empirical coefficients have no implicit physical meanings and are difficult to be determined in design procedure. To date, it seems that the underlying physical mechanism is not yet well understood, as stated by Hale et al (1991).…”

Section: Introductionmentioning

confidence: 99%

“…These are the multi-client project 'PIPESTAB' (1985'PIPESTAB' ( -1987 and the 'AGA-project ' (1987-1988) (Allen et al, 1989;Brennodden et al, 1986;Wagner et al, 1987;Brennodden et al, 1989). A considerable experience was gained, including an empirical pipe-soil interaction model and an energy based pipe-soil interaction model proposed by Wagner et al (1987) and Brennodden et al (1989), respect- Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Physical modeling of untrenched submarine pipeline instability

Gao

Jeng

2003

Ocean Engineering

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Wave-induced instability of untrenched pipeline on sandy seabed is a 'wave-soil-pipeline' coupling dynamic problem. To explore the mechanism of the pipeline instability, the hydrodynamic loading with U-shaped oscillatory flow tunnel is adopted, which is quite different from the previous experiment system. Based on dimensional analysis, the critical conditions for pipeline instability are investigated by altering pipeline submerged weight, diameter, soil parameters, etc. Based on the experimental results, different linear relationships between Froude number (Fr) and non-dimensional pipeline weight (G) are obtained for two constraint conditions. Moreover, the effects of loading history on the pipeline stability are also studied. Unlike previous experiments, sand scouring during the process of pipe's losing stability is detected in the present experiments. In addition, the experiment results are compared with the previous experiments, based on Wake II model for the calculation of wave-induced forces upon pipeline. It shows that the results of two kinds of experiments are comparable, but the present experiments provide better physical insight of the wave-soil-pipeline coupling effects. 

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On‐Bottom Stability Analysis

2024

Flexible Pipelines and Power Cables

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An Energy-Based Pipe-Soil Interaction Model

Cited by 38 publications

References 0 publications

The Analysis of Pipeline’s Penetration Laid on the Elastic-Plastic Seabed Based on the ABAQUS Software

The Analysis of Pipeline’s Penetration Laid on the Elastic-Plastic Seabed Based on the ABAQUS Software

Physical modeling of untrenched submarine pipeline instability

On‐Bottom Stability Analysis

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