Numerical Modeling of Buried HDPE Pipelines Subjected to Normal Faulting: A Case Study

Xie, Xiaojian; Symans, Michael D.; O’Rourke, Michael; Abdoun, Tarek; O’Rourke, Thomas D.; Palmer, Michael C.; Stewart, Harry E.

doi:10.1193/1.4000137

Cited by 65 publications

(30 citation statements)

References 15 publications

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“…Sonuç olarak, depremlerin oluşturmuş olduğu hasarlar, altyapı mühendisliğinin önemli bir birimi olan boru hattı sistemlerinde ve özelliklede petrol ve doğalgaz boru hatlarında önem arz etmektedir [4,5]. Deprem etkisi altındaki boru hatlarının dayanımı ve güvenliği konusundaki tasarımların birçok ülkede hayati öneme sahip olduğu, araştırmacılar [6][7][8][9][10][11][12][13][14][15][16][17][18] tarafından yapılan birçok çalışmada gösterilmiştir.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Doğalgaz Boru Hatlarında Dalga Bariyeri olarak Yapay Ana Kayanın Dalga Yayılışına Etkisi

2016

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ÖZDepremler yeryüzünün büyük bir kesimini etkileyerek mühendislik yapılarına ciddi hasarlar vermekte ve önemli ekonomik kayıplara yol açmaktadır. Bu yüzden, deprem etkisi altındaki boru hatlarının dayanımı ve güvenliği hayati öneme sahiptir. Zemin titreşimlerinin yayılma alanında ve korunacak yapı çevresinde azaltmak için yatay konumlandırılmış dalga bariyer uygulamaları inşaat mühendisliği çözümleri arasında yer almaktadır. Bu çalışmada yapı-zemin etkileşimi de dikkate alınarak 1999 Kocaeli depreminden kaynaklanan titreşim etkilerinin azaltılması için zeminin radyasyon sönümünü ifade eden enerji yutucu sınırları ve doğrusal olmayan malzeme özelliklerini de içeren bir nümerik model geliştirilmiştir. Geliştirilen bu model yardımıyla dalga bariyer sisteminde farklı kontrol parametrelerinin yalıtım etkisi kapsamlı parametrik çalışmalar yapılarak elde edilmiştir. Elde edilen sonuçlar dalga engelleyici yapay kaya dolgusunun titreşim etkilerinin azaltılmasında %70 mertebesinde etkili olduğunu ve bu tür problemler çözüm olarak gelecekte uygulanabileceğini göstermektedir.Anahtar Kelimeler: Dinamik analiz, doğalgaz boru hattı, dalga yayılımı, elasto-plastik davranış modeli Effect of artificial rock as a wave impeding barrier for wave propagation in pipeline ABSTRACTEarthquakes have destructive influences onto lifeline engineering and especially leading to considerable economic loss to the underground structure. Underground structures are significant unit of lifeline engineering. . Applying horizontal wave barriers is used in civil engineering as an alternative solution to reduce the soil vibrations in the wave propagation region and surrounding of the structures to be protected. In this study, discrete computer model including non-linear soil conditions as well as radiation damping is improved for testing corresponding wave propagation of earthquake vibrations in the soil under 1999 Kocaeli earthquake strong ground motion and mitigation of buried pipeline responses. Extensive parametric investigations by using the developed numerical model for isolation systems have been executed to conceive the influence of different controlling parameters on the screening efficiency. Results indicated that WIB are very promising as a cut off frequency isolators by reduction of * 70% and a promising candidate for future application in the field.

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Section: Gi̇ri̇ş (Introduction)unclassified

Doğalgaz Boru Hatlarında Dalga Bariyeri olarak Yapay Ana Kayanın Dalga Yayılışına Etkisi

2016

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“…Hence, numerous studies have been focused on the numerical and experimental analysis of this issue (i.e. Karamitros et al 2007, Takada et al 2001, Trifonov and Chemity 2010, Vazouras et al 2012, Xie et al 2013). Fortunately, as shows in Fig.…”

Section: Required Hazard Parametersmentioning

confidence: 99%

“…Different ground motion intensity measures were studied, as independent variables in the vulnerability functions. To assess the seismic loss in gas pipelines, a study was conducted by Yamin et al (2004) in Columbia. Their GIS based study integrated seismic vibration hazard with other seismic hazards including landslide, volcanic and liquefaction.…”

Section: Introductionmentioning

confidence: 99%

Seismic risk assessment of the 3rd Azerbaijan gas pipeline in Iran

2014

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A comprehensive seismic risk assessment has been performed for the existing route of the 3 rd Azerbaijan natural gas buried pipeline in Iran. The major active seismic sources along the pipeline were identified and the geometrical parameters as well as the seismicity rates were determined.The seismic hazard assessment of the ground vibrations along the pipeline was performed in the framework of the Probabilistic Seismic Hazard Analysis using the CRISIS 2007 software. All of the components of the gas pipeline along the route were identified and the corresponding fragility functions are established through the methodology described in the HAZUS guideline. A detailed cost analyses was taken into consideration based on the expert opinions in the National Iranian Gas Company, in order to provide more practical loss model for the pipeline route. Also, a simple method is suggested in order to account for the vent gas in the total loss estimation. The spatial analysis of the hazard function layer in combination with the loss model layer, in Geographical Information System platform, reveal the financial consequences of different earthquake scenarios.

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“…Adopting the numerical models, stress and strain behaviors of different kind buried pipes under various types of active faults have been studied. Using finite element (FE) models with pipe (elbow) elements and nonlinear spring elements, Xie et al validated the numerical models by comparing them with centrifuge experiment results [17,18]. Joshi et al conducted parametric analysis on beam buckling behavior of steel pipe at reverse fault crossing [19].…”

Section: Introductionmentioning

confidence: 99%

Local Buckling Behavior and Plastic Deformation Capacity of High-Strength Pipe at Strike-Slip Fault Crossing

Liu

Zhang

Wang

et al. 2017

Metals

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Abstract:As a typical hazard threat for buried pipelines, an active fault can induce large plastic deformation in a pipe, leading to rupture failure. The mechanical behavior of high-strength X80 pipeline subjected to strike-slip fault displacements was investigated in detail in the presented study with parametric analysis performed by the finite element model, which simulates pipe and soil constraints on pipe by shell and nonlinear spring elements respectively. Accuracy of the numerical model was validated by previous full-scale experimental results. Insight of local buckling response of high-strength pipe under compressive strike-slip fault was revealed. Effects of the pipe-fault intersection angle, pipe operation pressure, pipe wall thickness, soil parameters and pipe buried depth on critical section axial force in buckled area, critical fault displacement, critical compressive strain and post buckling response were elucidated comprehensively. In addition, feasibility of some common buckling failure criteria (i.e., the CSA Z662 model proposed by Canadian Standard association, the UOA model proposed by University of Alberta and the CRES-GB50470 model proposed by Center of Reliable Energy System) was discussed by comparing with numerical results. This study can be referenced for performance-based design and assessment of buried high-strength pipe in geo-hazard areas.

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Numerical Modeling of Buried HDPE Pipelines Subjected to Normal Faulting: A Case Study

Cited by 65 publications

References 15 publications

Doğalgaz Boru Hatlarında Dalga Bariyeri olarak Yapay Ana Kayanın Dalga Yayılışına Etkisi

Doğalgaz Boru Hatlarında Dalga Bariyeri olarak Yapay Ana Kayanın Dalga Yayılışına Etkisi

Seismic risk assessment of the 3rd Azerbaijan gas pipeline in Iran

Local Buckling Behavior and Plastic Deformation Capacity of High-Strength Pipe at Strike-Slip Fault Crossing

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