Performance of Buried Gas Distribution Pipelines Subjected to Reverse Fault Movement

Jalali, Himan Hojat; Rofooei, Fayaz R.; Attari, Nader K. A.

doi:10.1080/13632469.2016.1269694

Cited by 29 publications

(7 citation statements)

References 22 publications

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“…In addition, numerous scholars have also investigated the mechanical response of buried pipelines under fault by numerical simulation method [30][31][32][33][34][35] and model test method. [36][37][38][39][40] Ma et al 30 established a three-dimensional numerical model of X80 buried steel pipeline crossing reverse fault based on the ABAQUS software, and systematically analyzed the failure characteristics and failure range of local flexure of buried pipeline. By using beam units and discrete nonlinear springs, Joshi et al 32 simulated the behavior of buried pipelines under reverse fault and analyzed for the sensitivity parameters such as pipeline cross-section and material.…”

Section: Introductionmentioning

confidence: 99%

“…By using beam units and discrete nonlinear springs, Joshi et al 32 simulated the behavior of buried pipelines under reverse fault and analyzed for the sensitivity parameters such as pipeline cross-section and material. Jalali et al 39 conducted a series of full-scale model tests to investigate the structural deformation and strain distribution patterns of two groups of pipelines of different diameters under reverse fault. Yao et al 40 combined centrifuge tests and numerical simulations to investigate the active length of stainless steel pipelines under the influence of fault.…”

Section: Introductionmentioning

confidence: 99%

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Analytical solution for buried pipeline deformation induced by normal and reverse fault considering structural joint influence

Zhang,

Feng,

Zhu

et al. 2024

Num Anal Meth Geomechanics

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Previous studies take less account of analytical solution analysis for buried pipeline under the action of active fault. Furthermore, current theoretical studies of fault‐pipeline interactions generally treat the structure as continuous pipeline, with less attention given to the effect of joints. This paper provides an analytical method to estimate the deformation and internal force of jointed pipelines under normal and reverse fault. By introducing the simplified soil deformation model and error function, the soil greenfield deformation curves under the influence of normal and reverse fault are obtained. Considering the interaction between the pipeline structure and the disturbed soil, the two‐parameter Pasternak foundation model is adopted to analyze the forces on pipeline infinitesimal elements. Then, the mechanical response of the jointed pipeline structure due to the fault additional load is solved by finite difference method. The accuracy of the presented analytical solution is verified by comparisons with observed data of model test and 3D numerical simulation results. Finally, the parametric analyses are performed to estimate the influence for the characteristics of the foundation, fault and joint, including subgrade shear stiffness, subgrade reaction coefficient, fault dip, joint rotational stiffness, joint spacing, and intersection of fault and pipeline.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical solution for buried pipeline deformation induced by normal and reverse fault considering structural joint influence

Zhang,

Feng,

Zhu

et al. 2024

Num Anal Meth Geomechanics

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“…Sim et al (2012) conducted shaking table tests to simulate small diameter pipes crossing a vertical fault. Saiyar et al (2016) and Ni et al (2018), and Hojat Jalali et al (2018) examined the polyvinyl chloride (PVC) and steel pipelines response to normal-reverse faults, respectively. Sarvanis et al (2018) performed a full-scale test with the total length of a X65 steel pipeline as 28.3 m to explore its behavior when subjected to lateral movement.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive numerical analyses of the seismic performance of natural gas pipelines crossing earthquake faults

Zhang¹,

Ayello²,

Honegger

et al. 2022

Earthquake Spectra

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Coseismic fault displacement has been recognized as a critical hazard to natural gas transmission pipelines crossing earthquake faults. Prior studies on pipeline response to fault displacement were limited to specific types of pipes and faults, which were indeed constrained by the computational resources. As part of an effort to develop a Bayesian model to relate ground displacement in pipeline strain, we analyze more than 217,000 finite element models of gas pipeline fault crossings, which consider the pipe–soil interactions with both pipe and soil material nonlinearities. Such an enormous number of simulations are selected based on comprehensive sensitivity analyses and cover the most important parameters of gas pipelines in terms of combinations of the following: (1) pipe dimensions and materials, (2) soil properties, and (3) style of faulting and characteristics of fault movements. We devise an automated workflow for input generation–simulation submission–output extraction, by utilizing more than 10,000 cores high-performance super-computing facilities. Finally, we examine the pipeline response for every combination, by investigating the evolution of maximum compressive and tensile strains in the axial direction along the pipe over the fault displacement. These numerical analyses resulted in a comprehensive database of pipeline fragilities crossing earthquake fault for seismic risk analysis of natural gas infrastructure in an earthquake region.

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“…Kainat et al [14] first investigated the local wrinkling behavior of buckling pipeline under compressive stress induced by environmental loads, considering the geometric imperfection of pipeline induced by pipe manufacturing process. Jalali et al [15,16] studied the mechanical responses of pipes made of different material under fault displacement type go-hazard load. Lu et al [17] utilized commercial software widely used in pipeline industry, i.e., CAESARII, to analyze the stress results of outlet pipes of LNG storage tanks under external environmental loads.…”

Section: Introductionmentioning

confidence: 99%

Stress and Deformation Analysis of Buried Gas Pipelines Subjected to Buoyancy in Liquefaction Zones

Xia

Zhang

2018

Energies

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Buried pipelines are the main means of long distance transportation of natural gas. These pipelines are in high risk crossing liquefaction areas due to large deformations and stresses that may exist in pipe induced by the buoyancy load. In this study, a systematic analytical and numerical analysis were performed to investigate the mechanical behavior of a buried gas pipeline subjected to buoyancy in liquefaction areas. Soil constraints on pipe were considered accurately in the proposed models through soil spring assumptions. Effects of axial forces on pipe’s bending deformation were also considered via the governing equations for beam under bending and tension. Deformation compatibility condition was utilized to derive the axial forces in pipe. The accuracy of the proposed analytical model was validated by comparing its results with those derived by an established rigorous finite element model. In addition, parametric analysis was finally performed using the analytical model to study the influences of pipe diameter, pipe wall thickness, soil spring stiffness and width of liquefaction zone on pipe’s mechanical responses. This study can be referenced in the strength analysis and performance based safety evaluation of buried gas pipelines crossing liquefaction areas.

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Performance of Buried Gas Distribution Pipelines Subjected to Reverse Fault Movement

Cited by 29 publications

References 22 publications

Analytical solution for buried pipeline deformation induced by normal and reverse fault considering structural joint influence

Analytical solution for buried pipeline deformation induced by normal and reverse fault considering structural joint influence

Comprehensive numerical analyses of the seismic performance of natural gas pipelines crossing earthquake faults

Stress and Deformation Analysis of Buried Gas Pipelines Subjected to Buoyancy in Liquefaction Zones

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