IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)
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.
Source PublicationPROCEEDINGS OF THE ASME 29TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING 2010, VOL 5, PTS A AND B
2010
Conference Name29th ASME International Conference on Ocean, Offshore and Arctic Engineering
Conference DateJUN 06-11, 2010
Conference PlaceShanghai, PEOPLES R CHINA
AbstractThe 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.
WOS IDWOS:000290706200028
ISBN978-0-7918-4913-2
Indexed ByCPCI-S ; EI
Language英语
Citation statistics
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58877
Collection水动力学与海洋工程重点实验室(2009-2011)
Corresponding AuthorGao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Zhao B,Gao FP,Kang RY,et al. NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS[C]PROCEEDINGS OF THE ASME 29TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING 2010, VOL 5, PTS A AND B,2010.
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