Jointed pipeline response to tunneling-induced ground deformation

Wham, Brad P.; Argyrou, Christina; O’Rourke, Thomas D.

doi:10.1139/cgj-2016-0054

Cited by 46 publications

(27 citation statements)

References 24 publications

(37 reference statements)

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“…e principle of minimum potential energy takes the displacement function as its basic unknown, and it is necessary to assume a suitable displacement function to represent the basic shape of the pipeline affected by tunneling. A large number of studies have described the vertical displacement shapes of pipelines with a normal distribution curve [19][20][21][22][23][24][25]. Liu et al [4] assumed that the vertical displacement of the pipeline obeys a normal distribution curve, and the normal distribution curve function is expanded by a Fourier series.…”

Section: Matrix Representation Of the Vertical Displacement Of A Pipementioning

confidence: 99%

An Energy Solution for Predicting Buried Pipeline Response Induced by Tunneling Based on a Uniform Ground Movement Model

Shi

Rong

Cheng

et al. 2020

Mathematical Problems in Engineering

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The construction of shield tunnels inevitably causes displacement of the surrounding soil and additional stress and deformation of the buried pipeline. An energy solution for predicting the deformation of buried pipelines caused by tunneling is proposed in this study. First, based on the uniform ground movement model, the interval of the free displacement field of soil around the pipeline induced by tunneling is calculated. Then, we use the Pasternak model to establish the total potential energy equation of the tunnel-soil-pipeline interaction. The final settlement interval of the pipeline is obtained by solving the numerical calculation program with MATLAB. The calculation results of the energy solution are compared with the results of the centrifugal test and the reported theoretical solutions of Winkler and Pasternak, and then the applicability of the solution for predicting the pipeline response under different geotechnical conditions is verified. Combined with an engineering case, the energy method calculation results, numerical simulation results, and measured results are compared to obtain the most unfavorable position of the pipeline caused by tunneling. At the end of this study, the application steps of the proposed method in actual construction are summarized. These steps are used to predict pipeline response in order to take protective measures.

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Section: Matrix Representation Of the Vertical Displacement Of A Pipementioning

confidence: 99%

An Energy Solution for Predicting Buried Pipeline Response Induced by Tunneling Based on a Uniform Ground Movement Model

Shi

Rong

Cheng

et al. 2020

Mathematical Problems in Engineering

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“…As explained by Wham et al (2016), two geometric conditions bound the performance of jointed pipelines in response to ground deformation: joint centered (JC) and pipe centered (PC) in which a joint and the center of a pipe segment, respectively, is positioned at the location of maximum soil movement. The presentation and discussion of the numerical results are summarized for JC and PC configurations below.…”

Section: Ductile Iron Pipeline Response To Fault Rupturementioning

confidence: 99%

Ductile iron pipeline response to earthquake-induced ground rupture

et al. 2020

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This article provides a comprehensive evaluation of ductile iron (DI) pipeline response to earthquake-induced ground deformation through the results of a large-scale testing program and a fault rupture test on a 150-mm DI pipeline with restrained axial slip joints. The test is used to validate a two-dimensional finite element (FE) model that accounts for soil–pipeline interaction with axial slip, pullout resistance, and rotation of pipe joints. The maximum strike-slip fault offset sustained by push-on, restrained, and restrained axial slip joints is presented as a function of the pipeline/fault crossing angle. DI pipeline performance is controlled by one of the following limit states; tensile, compressive, rotational joint capacity, or local buckling in the pipe barrel. A systematic FE assessment shows that pipelines with restrained axial slip joints accommodate 2–9 and 2–10 times as much fault offset as pipelines with push-on and restrained joints, respectively, for most intersection angles. The results of this work can be used for simplified design and to quantify the relative earthquake performance of different DI pipelines.

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“…The value of ps-p is defined at the point of maximum obliquity with respect to the Mohr circle, and the geometric relationship between p and plane strain peak shear stress, ps , is shown in the figure. Using this relationship Jung et al (2013b) derived for partially saturated sand, a general equation for ps-p is (Wham et al 2016, after Bouziou 2015. K, oriented soil spring stiffness.…”

Section: Soil Modelmentioning

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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Jointed pipeline response to tunneling-induced ground deformation

Cited by 46 publications

References 24 publications

An Energy Solution for Predicting Buried Pipeline Response Induced by Tunneling Based on a Uniform Ground Movement Model

An Energy Solution for Predicting Buried Pipeline Response Induced by Tunneling Based on a Uniform Ground Movement Model

Ductile iron pipeline response to earthquake-induced ground rupture

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

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