Stress analysis on large-diameter buried gas pipelines under catastrophic landslides

Abstract This paper presents a method for analysis of stress and strain of gas pipelines under the effect of horizontal catastrophic landslides. A soil spring model was used to analyze the nonlinear characteristics concerning the mutual effects between the pipeline and the soil. The Ramberg–Osgood m...

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Autores principales:	Sheng-Zhu Zhang, Song-Yang Li, Si-Ning Chen, Zong-Zhi Wu, Ru-Jun Wang, Ying-Quan Duo
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	Buried gas pipeline Catastrophic landslide Finite element analysis Stress Strain Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/68a8637794b14d579df92d2fd9c02907
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spelling	oai:doaj.org-article:68a8637794b14d579df92d2fd9c029072021-12-02T02:30:05ZStress analysis on large-diameter buried gas pipelines under catastrophic landslides10.1007/s12182-017-0177-y1672-51071995-8226https://doaj.org/article/68a8637794b14d579df92d2fd9c029072017-07-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0177-yhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract This paper presents a method for analysis of stress and strain of gas pipelines under the effect of horizontal catastrophic landslides. A soil spring model was used to analyze the nonlinear characteristics concerning the mutual effects between the pipeline and the soil. The Ramberg–Osgood model was used to describe the constitutive relations of pipeline materials. This paper also constructed a finite element analysis model using ABAQUS finite element software and studied the distribution of the maximum stress and strain of the pipeline and the axial stress and strain along the pipeline by referencing some typical accident cases. The calculation results indicated that the maximum stress and strain increased gradually with the displacement of landslide. The limit values of pipeline axial stress strain appeared at the junction of the landslide area and non-landslide area. The stress failure criterion was relatively more conservative than the strain failure criterion. The research results of this paper may be used as a technical reference concerning the design and safety management of large-diameter gas pipelines under the effects of catastrophic landslides.Sheng-Zhu ZhangSong-Yang LiSi-Ning ChenZong-Zhi WuRu-Jun WangYing-Quan DuoKeAi Communications Co., Ltd.articleBuried gas pipelineCatastrophic landslideFinite element analysisStressStrainScienceQPetrologyQE420-499ENPetroleum Science, Vol 14, Iss 3, Pp 579-585 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Buried gas pipeline Catastrophic landslide Finite element analysis Stress Strain Science Q Petrology QE420-499
spellingShingle	Buried gas pipeline Catastrophic landslide Finite element analysis Stress Strain Science Q Petrology QE420-499 Sheng-Zhu Zhang Song-Yang Li Si-Ning Chen Zong-Zhi Wu Ru-Jun Wang Ying-Quan Duo Stress analysis on large-diameter buried gas pipelines under catastrophic landslides
description	Abstract This paper presents a method for analysis of stress and strain of gas pipelines under the effect of horizontal catastrophic landslides. A soil spring model was used to analyze the nonlinear characteristics concerning the mutual effects between the pipeline and the soil. The Ramberg–Osgood model was used to describe the constitutive relations of pipeline materials. This paper also constructed a finite element analysis model using ABAQUS finite element software and studied the distribution of the maximum stress and strain of the pipeline and the axial stress and strain along the pipeline by referencing some typical accident cases. The calculation results indicated that the maximum stress and strain increased gradually with the displacement of landslide. The limit values of pipeline axial stress strain appeared at the junction of the landslide area and non-landslide area. The stress failure criterion was relatively more conservative than the strain failure criterion. The research results of this paper may be used as a technical reference concerning the design and safety management of large-diameter gas pipelines under the effects of catastrophic landslides.
format	article
author	Sheng-Zhu Zhang Song-Yang Li Si-Ning Chen Zong-Zhi Wu Ru-Jun Wang Ying-Quan Duo
author_facet	Sheng-Zhu Zhang Song-Yang Li Si-Ning Chen Zong-Zhi Wu Ru-Jun Wang Ying-Quan Duo
author_sort	Sheng-Zhu Zhang
title	Stress analysis on large-diameter buried gas pipelines under catastrophic landslides
title_short	Stress analysis on large-diameter buried gas pipelines under catastrophic landslides
title_full	Stress analysis on large-diameter buried gas pipelines under catastrophic landslides
title_fullStr	Stress analysis on large-diameter buried gas pipelines under catastrophic landslides
title_full_unstemmed	Stress analysis on large-diameter buried gas pipelines under catastrophic landslides
title_sort	stress analysis on large-diameter buried gas pipelines under catastrophic landslides
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/68a8637794b14d579df92d2fd9c02907
work_keys_str_mv	AT shengzhuzhang stressanalysisonlargediameterburiedgaspipelinesundercatastrophiclandslides AT songyangli stressanalysisonlargediameterburiedgaspipelinesundercatastrophiclandslides AT siningchen stressanalysisonlargediameterburiedgaspipelinesundercatastrophiclandslides AT zongzhiwu stressanalysisonlargediameterburiedgaspipelinesundercatastrophiclandslides AT rujunwang stressanalysisonlargediameterburiedgaspipelinesundercatastrophiclandslides AT yingquanduo stressanalysisonlargediameterburiedgaspipelinesundercatastrophiclandslides
_version_	1718402412891340800

Stress analysis on large-diameter buried gas pipelines under catastrophic landslides

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