A semi-analytical method of stress-strain analysis of buried steel pipelines under submarine landslides

Zhang, Lisong; Zhao, Xiaomeng; Yan, Xiangzhen; Yang, Xiawei

doi:10.1016/j.apor.2016.05.007

Cited by 18 publications

(9 citation statements)

References 12 publications

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“…Based on the main scope of this method, Trifonov et al [14,15] conducted further elastoplastic analysis of steel pipe under fault displacement considering operation load. Similar works were also conducted by Zhang L. [16,17,18] on both onshore and offshore buried pipelines under active fault or landslide displacements.…”

Section: Introductionsupporting

confidence: 58%

Numerical Analysis and Strength Evaluation of an Exposed River Crossing Pipeline with Casing Under Flood Load

Liu¹,

Zhang²,

Xia³

et al. 2018

Period. Polytech. Civil Eng.

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Pipelines in service always experience complicated loadings induced by operational and environmental conditions. Flood is one of the common natural hazard threats for buried steel pipelines. One exposed river crossing X70 gas pipeline induced by flood erosion was used as a prototype for this study. A mechanical model was established considering the field loading conditions. Morison equations were adopted to calculate distributional hydrodynamic loads on spanning pipe caused by flood flow. Nonlinear soil constraint on pipe was considered using discrete nonlinear soil springs. An explicit solution of bending stiffness for pipe segment with casing was derived and applied to the numerical model. The von Mises yield criterion was used as failure criteria of the X70 pipe. Stress behavior of the pipe were analyzed by a rigorous finite element model established by the general-purpose Finite-Element package ABAQUS, with 3D pipe elements and pipe-soil interaction elements simulating pipe and soil constraints on pipe, respectively. Results show that, the pipe is safe at present, as the maximum von Mises stress in pipe with the field parameters is 185.57 MPa. The critical flow velocity of the pipe is 5.8 m/s with the present spanning length. The critical spanning length of the pipe is 467 m with the present flow velocity. The failure pipe sections locate at the connection point of the bare pipe and the pipe with casing or the supporting point of the bare pipe on riverbed.Keywords finite element analysis, river crossing, buried X70 pipe, flood load, pipe soil interaction Period. Polytech. Civil Eng.X. Liu, H. Zhang et al.

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Section: Introductionsupporting

confidence: 58%

Numerical Analysis and Strength Evaluation of an Exposed River Crossing Pipeline with Casing Under Flood Load

Liu¹,

Zhang²,

Xia³

et al. 2018

Period. Polytech. Civil Eng.

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“…Other studies mostly only do landslide dynamics modeling, perform simulations to gain knowledge of how the transport process in landslides (Li et al, 2012;Dai et al, 2014;Shi et al, 2016). To the best of our knowledge, the quantitative analysis of parameters of the before and after disaster has not been studied through mechanism model (De-Blasio, 2011;Zhang et al, 2016;Bin et al, 2020;Padmaja et al, 2021). Therefore, in this paper we developed the mechanism model to obtain the parameters of the landslide disaster using fracture criterion -.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Model of Landslides with Curved Sliding Plane Using Fracture Criterion of Solid Soil-Rock System

Permanasari

Hendrajaya

Handayani

2022

Sci.Technol.Indonesia

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Alluvial cliff with high slope and step has been known to cause curving sliding plane. This phenomenon is adopted as a knowledge, but it has never been studied theoretically. In this paper, mathematics derivation phenomenon is proposed using special model of 11 fracture criterion ????-????. The quantity of ???? is A???? 2 with A is a friction coefficient of stress ???? 2 . The failure model was substituted to the corresponding Mohr circle resulting the expected curve. The curve was used to measure the observed field profile to obtain the friction coefficient A.

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“…With respect to the pipeline response assessment, Parker et al [12], Yuan et al [13,14], Yuan et al [15] and Ζhang et al [16] present both analytical and numerical models, that investigate the case of landslide impact vertical to the pipeline axis. The landslide impact is simulated as a linear drag force and pipe-soil interaction is modeled through bilinear elasticplastic springs.…”

Section: Introductionmentioning

confidence: 99%

Offshore Natural Gas Pipelines Subjected to Kinematic Distress

Chatzidakis¹,

Tsompanakis²,

Psarropoulos³

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Abstract. Hydrocarbons are undoubtedly the main energy source of the twenty-first century. Over the last decades the increase in energy needsFor this purpose, the aim of this work is to study numerically, utilizing the finite element method, the kinematic distress ) of an offshore natural gas pipeline due to a submarine landslide. Firstly, the developed numerical models are validated using available analytical solutions, and subsequently various parameters that affect the examined problem are investigated. The detailed parametric analysis covers among others, the impacted force on the pipeline, the landslide length, internal pressure levels, slope inclinations and diameter to thickness ratios.

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A semi-analytical method of stress-strain analysis of buried steel pipelines under submarine landslides

Cited by 18 publications

References 12 publications

Numerical Analysis and Strength Evaluation of an Exposed River Crossing Pipeline with Casing Under Flood Load

Numerical Analysis and Strength Evaluation of an Exposed River Crossing Pipeline with Casing Under Flood Load

Mathematical Model of Landslides with Curved Sliding Plane Using Fracture Criterion of Solid Soil-Rock System

Offshore Natural Gas Pipelines Subjected to Kinematic Distress

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