IMECH-IR  > 流固耦合系统力学重点实验室
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.
Source PublicationOCEAN ENGINEERING
2017-10-01
Volume143Pages:97-105
ISSN0029-8018
AbstractSpudcan 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.
KeywordSpudcan Foundation Spatial Variability Bearing Capacity Clay Mobilized Shear Strength
DOI10.1016/j.oceaneng.2017.05.026
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000411774600008
WOS KeywordSHEAR-STRENGTH ; VARIABLE SOILS ; VARIABILITY
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
Funding OrganizationNatural Science Foundation of China(51379053 ; Youth Innovation Promotion Association CAS ; 51679060)
DepartmentLMFS流固土耦合力学(LHO)
Classification一类
Ranking4
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/70071
Collection流固耦合系统力学重点实验室
Corresponding AuthorLi, JH (reprint author), Harbin Inst Technol, Dept Civil & Environm Engn, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China.
Recommended Citation
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 .(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.
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