Performance-based assessment of protection measures for buried pipes at strike-slip fault crossings

Melissianos, Vasileios E.; Vamvatsikos, Dimitrios; Gantes, Charis J.

doi:10.1016/j.soildyn.2017.07.004

Cited by 28 publications

(15 citation statements)

References 24 publications

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“…This study focuses on the joint kinematics and joint leaking of DI pipes, the related offset distance is generally smaller than those considered in the safety analysis of continuous flexible pipelines, where the offset distances might be up to several meters (Melissianos et al 2017b). Under the studied condition, the measured offset distance that caused leakage at the DI pipe joint is only 137 D r a f t mm (Wham and O'Rourke 2016), which leads to a rotation angle less than 3° (see Fig.…”

Section: R a F Tmentioning

confidence: 99%

Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

Qin

Wang

2022

Can. Geotech. J.

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Joint kinematic behaviour, i.e., joint rotation and axial translation, can partially help pipelines to accommodate abrupt ground movements, and cause leaking if joint service limit is exceeded, even without any structural failure. Kinematic behaviour of bell-spigot jointed ductile iron (DI) pipes and its influence on joint sealing capacity under abrupt transverse ground movements are investigated in this study. Firstly, a beam-on-spring finite element analysis on joint kinematics of DI pipes is conducted, in which different fault-pipe crossing positions are implemented. Based on simulated results, a modified joint kinematic solution incorporating pipe deflection and joint shear force under different fault-pipe crossing positions is proposed. Then, a Monte Carlo simulation (MCS)-based reliability assessment procedure for joint sealing capacity is developed. Sensitivity analysis is subsequently conducted to investigate the effects of uncertainties associated with initial axial translation, soil properties, and crossing positions on the joint sealing capacity, and the effects of different deterministic solutions are compared. The proposed method allows engineers to effectively evaluate how the joint sealing capacity of DI pipes changes with consideration of uncertainties when abrupt transverse ground movements are encountered.

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Section: R a F Tmentioning

confidence: 99%

Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

Qin

Wang

2022

Can. Geotech. J.

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“…An increasing seismic vulnerability of NG pipelines was actually reported on steel pipelines that were previously weakened by corrosion or poor quality welds (EERI, 1986;Gehl et al, 2014). Permanent ground deformations commonly induce a higher straining on the steel pipelines, compared to transient ground deformations; therefore, most research efforts have been mainly focused on this seismic hazard (Karamitros et al, 2007;Vazouras et al, 2010;Vazouras et al, 2012;Kouretzis et al, 2014;Vazouras et al, 2015;Vazouras et al, 2016;Karamitros et al, 2016;Melissianos et al, 2017aMelissianos et al, , 2017bMelissianos et al, , 2017cDemirci et al, 2018;Sarvanis et al, 2018,;Tsatsis et al 2018, among many others). However, statistically it is more likely for a pipeline to be subjected to transient ground deformations rather than seismically induced permanent ground deformations.…”

Section: Seismic Performance and Critical Failure Modes Of Buried Ng mentioning

confidence: 99%

A critical review on the vulnerability assessment of natural gas pipelines subjected to seismic wave propagation. Part 1: Fragility relations and implemented seismic intensity measures

Tsinidis

Sarno

Sextos

et al. 2019

Tunnelling and Underground Space Technology

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“…Permanent ground deformations tend to induce higher straining on buried steel pipelines, compared to transient ground deformations. Hence, most researchers focused their investigations on this seismic hazard [12][13][14][15][16][17][18][19][20][21][22][23]. However, it is more likely for a buried pipeline to be subjected to transient ground deformations rather than seismically-induced permanent ground deformations.…”

Section: Introductionmentioning

confidence: 99%

Optimal intensity measures for the structural assessment of buried steel natural gas pipelines due to seismically-induced axial compression at geotechnical discontinuities

Tsinidis

Sarno

Sextos

et al. 2020

Soil Dynamics and Earthquake Engineering

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This paper investigates the efficiency and sufficiency of various seismic intensity measures for the structural assessment of buried steel natural gas (NG) pipelines subjected to axial compression caused by transient seismic ground deformations. The study focuses on buried NG pipelines crossing perpendicularly a vertical geotechnical discontinuity with an abrupt change on the soil properties, where the potential of high compression strain is expected to be increased under seismic wave propagation. A detailed analytical framework is developed for this purpose, which includes a 3D finite element model of the pipe-trench system, to evaluate rigorously the pipe-soil interaction phenomena, and 1D soil response analyses that are employed to determine critical ground deformation patterns at the geotechnical discontinuity, caused by seismic wave propagation. A comprehensive numerical parametric study is conducted by employing the analytical methodology in a number of soil-pipeline configurations, considering salient parameters that control the axial response of buried steel NG pipelines, i.e. diameter, wall thickness and internal pressure of the pipeline, wall imperfections of the pipeline, soil properties and backfill compaction level and friction characteristics of the backfill-pipe interface. Using the peak compression strain of the pipeline as engineering demand parameter and a number of regression analyses relative to the examined seismic intensity measures, it is shown that the peak ground velocity PGV at ground surface constitutes the optimum intensity measure for the structural assessment of the examined infrastructure.

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Performance-based assessment of protection measures for buried pipes at strike-slip fault crossings

Cited by 28 publications

References 24 publications

Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

A critical review on the vulnerability assessment of natural gas pipelines subjected to seismic wave propagation. Part 1: Fragility relations and implemented seismic intensity measures

Optimal intensity measures for the structural assessment of buried steel natural gas pipelines due to seismically-induced axial compression at geotechnical discontinuities

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