Innovative analysis of a buried operating pipeline subjected to strike-slip fault movement

Banushi, Gersena; Squeglia, Nunziante; Thiele, Klaus

doi:10.1016/j.soildyn.2018.01.015

Cited by 47 publications

(14 citation statements)

References 16 publications

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“…Referring to the design criteria of long-distance oil and gas pipelines [34], burial depths h=0.9m, 1.2m, 1.5m, 1.8m, and 2.1m were selected to analyze the influence of h on local buckling.…”

Section: Influence Of Burial Depthmentioning

confidence: 99%

Local buckling behavior of buried pipeline under seismic oblique-reverse fault displacement

Huang²,

Chen

et al. 2022

Preprint

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Seismic fault displacement is the main factor leading to the local buckling failure of the buried pipeline, especially crossing the oblique-reverse fault. The 3-D displacement of the oblique-reverse fault makes the local buckling behavior of the buried pipeline more complex. It may be inaccurate to evaluate the local buckling location and degree using the pipe local buckling results under the single fault displacement, affecting the monitoring and safety assessment of the pipeline. In this paper, to determine the pipe local buckling behavior (potential local buckling locations, developing process) under the oblique-reverse fault displacement, a shell and solid element nonlinear contact coupling model of the pipeline crossing oblique-reverse fault is established using ABAQUS. The results reveal two potential local buckling areas and three stages of the local buckling developing process under the oblique-reverse fault displacement. Subsequently, the potential local buckling locations and three stages in the local buckling under different operating conditions is obtained. It proves that using the results of pipe local buckling under single fault to evaluate the pipeline local buckling under composed fault is not safe enough. Consequently, local buckling behavior of the pipeline crossing oblique-reverse fault provides a reference for the preliminary pipe design, detection, and evaluation.

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Section: Influence Of Burial Depthmentioning

confidence: 99%

Local buckling behavior of buried pipeline under seismic oblique-reverse fault displacement

Huang²,

Chen

et al. 2022

Preprint

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“…Parametric study was also conducted to study the effects of various fault crossing angles (β), properties of soil-pipe interface and operational conditions such as internal pipe pressure and temperature variations on buried pipelines crossing normal faults. Banushi et al (2018) performed a parametric study to investigate the behaviour of buried continuous pipelines crossing strike-slip faults. A new technique called submodelling technique was proposed to capture behaviour of pipelines at the pipe sections prone to local buckling.…”

Section: Experimental Studiesmentioning

confidence: 99%

Behaviour of buried continuous pipelines crossing strike-slip faults: Experimental and numerical study

Demirci

Karaman

Bhattacharya

2021

Journal of Natural Gas Science and Engineering

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“…As for numerical methods, finite element analyses (FEAs) have been extensively employed, which typically fall into two categories: (1) beam-type elements for pipe and discrete multidirectional nonlinear soil springs for soil (ASCE, 1984; Honegger and Nyman, 2017; Liu et al, 2004; O’Rourke et al, 2008), (2) shell elements for pipe and three-dimensional continuum solid elements for soil (Banushi et al, 2018; Jung et al, 2013a, 2013b; O’ROURKE, 2010; Rasouli and Fatahi, 2020; Vazouras and Karamanos, 2017; Vazouras et al, 2015, 2010; Xie et al, 2011). The former method is widely adopted in engineering practice because of its simplicity in modeling and simulation process, and low computational cost while maintaining an acceptable accuracy.…”

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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Innovative analysis of a buried operating pipeline subjected to strike-slip fault movement

Cited by 47 publications

References 16 publications

Local buckling behavior of buried pipeline under seismic oblique-reverse fault displacement

Local buckling behavior of buried pipeline under seismic oblique-reverse fault displacement

Behaviour of buried continuous pipelines crossing strike-slip faults: Experimental and numerical study

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

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