Lateral and Upward Soil-Pipeline Interactions in Sand for Deep Embedment Conditions

Yimsiri, S; Soga, Kenichi; Yoshizaki, Koji; Dasari, G. R.; O’Rourke, Thomas D.

doi:10.1061/(asce)1090-0241(2004)130:8(830)

Cited by 137 publications

(66 citation statements)

References 18 publications

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“…It is in addition noted that, sensitivity analyses performed as part of the present as well as previous studies (e.g. [12]) have indicated that the predicted p-y response is not particularly sensitive to the assumed interface friction angle value.…”

Section: Numerical Methodologysupporting

confidence: 61%

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Trench effects on lateral p-y relations for pipelines embedded in stiff soils and rocks

Chaloulos

Bouckovalas

Karamitros

2017

Computers and Geotechnics

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Existing relationships for lateral backfill pressures on pipelines assume that the trench is adequately wide to contain the failure surface. This condition is commonly violated in design and construction practice, putting at risk the pipeline safety. In this context, size and shape effects for trenches excavated in stiff soils and rocks, are numerically investigated, through experimentally-calibrated parametric analyses. It is shown that, for narrow trenches, ultimate pressures and yield displacements may increase up to an order of magnitude compared to "infinite-trench" values, while excavation of inclined walls reduces the above detrimental effects. Simplified relations are developed to aid pipeline design.

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Section: Numerical Methodologysupporting

confidence: 61%

“…Even though, and also despite the large number of studies dedicated to the response of buried pipelines [e.g. [6][7][8][9][10][11][12][13][14], research related to trench size effects remained limited until recently.…”

Section: Introductionmentioning

confidence: 99%

Trench effects on lateral p-y relations for pipelines embedded in stiff soils and rocks

Chaloulos

Bouckovalas

Karamitros

2017

Computers and Geotechnics

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“…continuous steel gas pipelines," Soil Dynamics and Earthquake Engineering, Vol.86, pp. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] …”

Section: Resultsmentioning

confidence: 99%

“…To this end, interface friction was taken into account for the algorithm, using a coulomb friction criterion and also allows for the separation of the soil medium and pipe surface. According to Yimsiri et al [14], The friction coefficient, μ ,was computed based on the reduced interface friction angle between the soil and the pipe equal to 2/3∅, which ∅ is soil internal friction. So based on given soil property is table 1, for the selected soil, μ, was set to 0.52.…”

Section: Numerical Modelingmentioning

confidence: 99%

Investigating the Effect of Using Soil Bentonite Wall on Damage Mitigation of Steel Buried Pipelines Subjected to Reverse Fault Rupture

Pour¹,

Fadaee²

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…The pipe was modeled as a rigid cylinder, with a soil-pipe interface friction angle of 0.6 ds-p , as reported by several researchers (e.g., Yoshimi and Kishida 1981;Trautmann and O'Rourke 1985;Yimsiri et al 2004). This interface friction angle is consistent with those measured for smooth polymer surfaces, reported by O' Rourke et al (1990) on the basis of DS testing.…”

Section: Finite Element Analysis For Downward Pipe Movementmentioning

confidence: 99%

Multi-directional force–displacement response of underground pipe in sand

2016

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Abstract:A methodology is presented to evaluate multi-directional force-displacement relationships for soil-pipeline interaction analysis and design. Large-scale tests of soil reaction to pipe lateral and uplift movement in dry and partially saturated sand are used to validate plane strain, finite element (FE) soil, and pipe continuum models. The FE models are then used to characterize force versus displacement performance for lateral, vertical upward, vertical downward, and oblique orientations of pipeline movement in soil. Using the force versus displacement relationships, the analytical results for pipeline response to strike-slip fault rupture are shown to compare favorably with the results of large-scale tests in which strike-slip fault movement was imposed on 250 and 400 mm diameter high-density polyethylene pipelines in partially saturated sand. Analytical results normalized with respect to maximum lateral force are provided on 360°plots to predict maximum pipe loads for any movement direction. The resulting methodology and dimensionless plots are applicable for underground pipelines and conduits at any depth, subjected to relative soil movement in any direction in dry or saturated and partially saturated medium to very dense sands.Key words: pipeline, Mohr-Coulomb, soil-pipe interaction, earthquake, liquefaction, ground failure.Résumé : Une méthodologie est présentée afin d'évaluer les relations force-déplacement multidirectionnel pour la conception et l'analyse des interactions sol-pipeline. Des essais à grande échelle de la réaction du sol aux mouvements latéraux ou au soulèvement de tuyau dans le sable sec et partiellement saturé servent à valider les modèles en déformation plane, les sols par élément fini (EF) et le continuum de tuyau. Les modèles EF sont ensuite utilisés pour caractériser les performances de force versus déplacement latéral, pour les orientations verticales, vers le haut, vertical vers le bas et obliques de mouvement du pipeline dans le sol. En utilisant les relations de force versus déplacement, les résultats des analyses pour une réponse à la rupture de faille par décrochement se comparent favorablement avec les résultats des essais à grande échelle, dont le mouvement de faille, par décrochement a été imposé à des pipelines en polyéthylène à haute densité de 250 et de 400 mm de diamètre dans du sable partiellement saturé. Les résultats analytiques normalisés en ce qui concerne la force latérale maximale sont fournis sur des parcelles de 360°pour n'importe quelle direction de mouvement. La méthodologie qui en résulte et les parcelles sans dimension sont applicables pour les pipelines souterrains et les conduits à n'importe quelle profondeur, sujettes à des mouvements de sol relatif dans tous les sens dans un milieu sec ou saturé et partiellement saturé aux sables très denses. [Traduit par la Rédaction] Mots-clés : pipeline, Mohr-Coulomb, interaction sol-tuyau, tremblement de terre, liquéfaction, échec de sol.

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Lateral and Upward Soil-Pipeline Interactions in Sand for Deep Embedment Conditions

Cited by 137 publications

References 18 publications

Trench effects on lateral p-y relations for pipelines embedded in stiff soils and rocks

Trench effects on lateral p-y relations for pipelines embedded in stiff soils and rocks

Investigating the Effect of Using Soil Bentonite Wall on Damage Mitigation of Steel Buried Pipelines Subjected to Reverse Fault Rupture

Multi-directional force–displacement response of underground pipe in sand

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