Bearing capacity of spudcan foundations in a spatially varying clayey seabed

doi:10.1016/j.oceaneng.2017.05.026

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Bearing capacity of spudcan foundations in a spatially varying clayey seabed
	Li, Li; Li, Jinhui; Huang, Jinsong; Gao FP(高福平); Li, JH (reprint author), Harbin Inst Technol, Dept Civil & Environm Engn, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China.; Li L; Li L; Li L; Li L; Li L
刊名	OCEAN ENGINEERING
	2017-10-01
卷号	143 页码:97-105
关键词	Spudcan Foundation Spatial Variability Bearing Capacity Clay Mobilized Shear Strength
ISSN号	0029-8018
DOI	10.1016/j.oceaneng.2017.05.026
文献子类	Article
英文摘要	Spudcan foundations are often pushed into a spatially varying non-homogeneous seabed to provide bearing capacity for a mobile jack-up platform. The natural variability of soil properties coupled with the complexity of loading conditions make determining the bearing capacity of spudcan foundations a challenging problem. A random finite element method is established to investigate the bearing capacity of a spudcan foundation embedded in a spatially varying clayey seabed when subjected to vertical, horizontal and moment loadings. A criterion is proposed for determining the characteristic value of the shear strength for the random seabed. Results indicate that the spatial variability in the clayey seabed significantly reduces the bearing capacity of a spudcan foundation. This reduction is more significant in the vertical bearing capacity than in the horizontal and moment bearing capacities. The mean bearing capacity is smaller for the clay with larger coefficient of variation of undrained shear strength. A characteristic value of mean minus a standard deviation of the undrained shear strength is capable to ensure the probability of failure is not greater than 5%. This study provide an evaluation method for the spatial variability effect of a clayey seabed, paving the way for a cost-effective design of spudcan foundations.
分类号	一类
URL标识	查看原文
WOS关键词	SHEAR-STRENGTH ; VARIABLE SOILS ; VARIABILITY
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:000411774600008
资助机构	Natural Science Foundation of China(51379053 ; Youth Innovation Promotion Association CAS ; 51679060)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/70071]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Li, JH (reprint author), Harbin Inst Technol, Dept Civil & Environm Engn, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China.
推荐引用方式 GB/T 7714	Li, Li,Li, Jinhui,Huang, Jinsong,et al. Bearing capacity of spudcan foundations in a spatially varying clayey seabed[J]. OCEAN ENGINEERING,2017,143:97-105.
APA	Li, Li.,Li, Jinhui.,Huang, Jinsong.,高福平.,Li, JH .,...&Gao FP.(2017).Bearing capacity of spudcan foundations in a spatially varying clayey seabed.OCEAN ENGINEERING,143,97-105.
MLA	Li, Li,et al."Bearing capacity of spudcan foundations in a spatially varying clayey seabed".OCEAN ENGINEERING 143(2017):97-105.