Study of Pipeline Penetration Based on CEL in Clay

In deep water, pipelines are usually laid directly on the seabed. During the laying process, the pipe typically penetrates into the seabed by a fraction of a diameter. The vertical embedment of pipeline and formation of berm during penetration have a significant effect on the pipeline stability. Thi...

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Main Authors: Jia Li, Tao Liu, Jian Jiang, Zhigang Zheng, Hong Huang
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/25/e3sconf_caes2020_03027.pdf
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author Jia Li
Tao Liu
Jian Jiang
Zhigang Zheng
Hong Huang
author_facet Jia Li
Tao Liu
Jian Jiang
Zhigang Zheng
Hong Huang
author_sort Jia Li
collection DOAJ
description In deep water, pipelines are usually laid directly on the seabed. During the laying process, the pipe typically penetrates into the seabed by a fraction of a diameter. The vertical embedment of pipeline and formation of berm during penetration have a significant effect on the pipeline stability. This study aims to investigate the vertical pipeline penetration at uniform and normal consolidated clay, by carrying out a series of numerical analyses, in which the coupled Eulerian-Lagrangian method (CEL) is incorporated to enable large deformation simulation. These analyses have been compared with collapse loads calculated using the theory solution. The results show that the CEL method is very suitable for simulating large-deformation pipesoil interaction.
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spelling doaj.art-c96289ab43a947b288ce103487fcf7b62022-12-21T23:03:04ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011650302710.1051/e3sconf/202016503027e3sconf_caes2020_03027Study of Pipeline Penetration Based on CEL in ClayJia Li0Tao LiuJian Jiang1Zhigang Zheng2Hong Huang3Shenzhen Tagen <Group> Co., Ltd,Shenzhen Tagen <Group> Co., Ltd,Shenzhen Yuetong Construction Engineering Co., LtdShenzhen Yuetong Construction Engineering Co., LtdIn deep water, pipelines are usually laid directly on the seabed. During the laying process, the pipe typically penetrates into the seabed by a fraction of a diameter. The vertical embedment of pipeline and formation of berm during penetration have a significant effect on the pipeline stability. This study aims to investigate the vertical pipeline penetration at uniform and normal consolidated clay, by carrying out a series of numerical analyses, in which the coupled Eulerian-Lagrangian method (CEL) is incorporated to enable large deformation simulation. These analyses have been compared with collapse loads calculated using the theory solution. The results show that the CEL method is very suitable for simulating large-deformation pipesoil interaction.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/25/e3sconf_caes2020_03027.pdf
spellingShingle Jia Li
Tao Liu
Jian Jiang
Zhigang Zheng
Hong Huang
Study of Pipeline Penetration Based on CEL in Clay
E3S Web of Conferences
title Study of Pipeline Penetration Based on CEL in Clay
title_full Study of Pipeline Penetration Based on CEL in Clay
title_fullStr Study of Pipeline Penetration Based on CEL in Clay
title_full_unstemmed Study of Pipeline Penetration Based on CEL in Clay
title_short Study of Pipeline Penetration Based on CEL in Clay
title_sort study of pipeline penetration based on cel in clay
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/25/e3sconf_caes2020_03027.pdf
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AT jianjiang studyofpipelinepenetrationbasedoncelinclay
AT zhigangzheng studyofpipelinepenetrationbasedoncelinclay
AT honghuang studyofpipelinepenetrationbasedoncelinclay