NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS
The bearing capacity of a pipeline foundation is crucial for the pipeline stability design. It is usually inappropriate to analyze the bearing capacity for the pipeline with special circular section directly by employing the theory for conventional rectangular strip footings. In this study, the ulti...
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AMER SOC MECHANICAL ENGINEERS
2010
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ftchinacadsimech:oai:dspace.imech.ac.cn:311007/58877 2023-05-15T14:23:03+02:00 NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS Zhao B Gao FP(高福平) Kang RY Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing, Peoples R China. 2010 http://dspace.imech.ac.cn/handle/311007/58877 英语 eng AMER SOC MECHANICAL ENGINEERS PROCEEDINGS OF THE ASME 29TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING 2010, VOL 5, PTS A AND B Zhao B,Gao FP,Kang RY. NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS[C]. 见:29th ASME International Conference on Ocean, Offshore and Arctic Engineering. Shanghai, PEOPLES R CHINA. JUN 06-11, 2010 http://dspace.imech.ac.cn/handle/311007/58877 cn.org.cspace.api.content.CopyrightPolicy@18ec997 会议论文 2010 ftchinacadsimech 2022-12-19T18:22:42Z The bearing capacity of a pipeline foundation is crucial for the pipeline stability design. It is usually inappropriate to analyze the bearing capacity for the pipeline with special circular section directly by employing the theory for conventional rectangular strip footings. In this study, the ultimate loads of the pipeline on clayey soils are investigated numerically. A plane-strain finite element model is proposed to simulate the quasi-static process of the pipeline penetrating into the soil, in which the adaptive-grid technique and the 'contact-pair' algorithm are employed, and the Drucker-Prager constitutive model is used for modeling the soil plasticity. Based on the proposed numerical model, the development of soil plastic zone and the incremental-displacement vector field beneath the pipeline are examined numerically. It is indicated that, according to the obtained pipeline vertical load-displacement curves, concurrently referring to the plastic strain field and/or the soil incremental-displacement vector field, the shear failure type (e.g., general shear failure, punching shear failure) and the collapse loads can be thereby determined. The present numerical results match well with the analytical solutions of slip-line theory in plasticity mechanics. Other/Unknown Material Arctic IMECH-IR (Institute of Mechanics, Chinese Academy of Sciences) |
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IMECH-IR (Institute of Mechanics, Chinese Academy of Sciences) |
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ftchinacadsimech |
language |
English |
description |
The bearing capacity of a pipeline foundation is crucial for the pipeline stability design. It is usually inappropriate to analyze the bearing capacity for the pipeline with special circular section directly by employing the theory for conventional rectangular strip footings. In this study, the ultimate loads of the pipeline on clayey soils are investigated numerically. A plane-strain finite element model is proposed to simulate the quasi-static process of the pipeline penetrating into the soil, in which the adaptive-grid technique and the 'contact-pair' algorithm are employed, and the Drucker-Prager constitutive model is used for modeling the soil plasticity. Based on the proposed numerical model, the development of soil plastic zone and the incremental-displacement vector field beneath the pipeline are examined numerically. It is indicated that, according to the obtained pipeline vertical load-displacement curves, concurrently referring to the plastic strain field and/or the soil incremental-displacement vector field, the shear failure type (e.g., general shear failure, punching shear failure) and the collapse loads can be thereby determined. The present numerical results match well with the analytical solutions of slip-line theory in plasticity mechanics. |
format |
Other/Unknown Material |
author |
Zhao B Gao FP(高福平) Kang RY Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing, Peoples R China. |
spellingShingle |
Zhao B Gao FP(高福平) Kang RY Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing, Peoples R China. NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS |
author_facet |
Zhao B Gao FP(高福平) Kang RY Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing, Peoples R China. |
author_sort |
Zhao B |
title |
NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS |
title_short |
NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS |
title_full |
NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS |
title_fullStr |
NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS |
title_full_unstemmed |
NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS |
title_sort |
numerical investigation on bearing capacity of a pipeline on clayey soils |
publisher |
AMER SOC MECHANICAL ENGINEERS |
publishDate |
2010 |
url |
http://dspace.imech.ac.cn/handle/311007/58877 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
PROCEEDINGS OF THE ASME 29TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING 2010, VOL 5, PTS A AND B Zhao B,Gao FP,Kang RY. NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS[C]. 见:29th ASME International Conference on Ocean, Offshore and Arctic Engineering. Shanghai, PEOPLES R CHINA. JUN 06-11, 2010 http://dspace.imech.ac.cn/handle/311007/58877 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@18ec997 |
_version_ |
1766295538553061376 |