NUMERICAL INVESTIGATION ON BEARING CAPACITY OF A PIPELINE ON CLAYEY SOILS

CORC > 力学研究所 > 中国科学院力学研究所 > 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
	2010
会议名称	29th ASME International Conference on Ocean, Offshore and Arctic Engineering
会议日期	JUN 06-11, 2010
会议地点	Shanghai, PEOPLES R CHINA
通讯作者	Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing, Peoples R China.
中文摘要	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.
收录类别	CPCI-S ; EI
会议录	PROCEEDINGS OF THE ASME 29TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING 2010, VOL 5, PTS A AND B
会议录出版者	AMER SOC MECHANICAL ENGINEERS
会议录出版地	NEW YORK
语种	英语
ISBN号	978-0-7918-4913-2
WOS记录号	WOS:000290706200028
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58877]
专题	力学研究所_水动力学与海洋工程重点实验室(2009-2011)
推荐引用方式 GB/T 7714	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.