Affiliation:
1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Department of Civil Engineering, Zhejiang University, Hangzhou, 310058, China.
Abstract
A number of potential offshore wind turbines in China will be constructed in sandy silt seabeds, and the mono-caisson foundation is an important choice for these offshore wind turbines. A program of large-scale model tests on suction installation and lateral loading of caisson foundations in saturated silt were carried out in a large soil tank at Zhejiang University. Test results of installation resistance during suction installation show that the seepage effect is limited in silt, and the suction required to penetrate the caisson can be well predicted based on the sleeve friction and cone resistance of cone penetration tests. The deformation mechanism and soil-structure interaction of a caisson subjected to lateral loads were investigated. The instantaneous rotation center of the model caisson at failure was at the depth of about four-fifths of the skirt length, almost directly below the lid center. Based on the assumption of a common position of the instantaneous rotation center and dominating resistance forces on the caisson, an analytical expression for the ultimate moment capacity was presented.
Publisher
Canadian Science Publishing
Subject
Civil and Structural Engineering,Geotechnical Engineering and Engineering Geology
Reference13 articles.
1. Combined loading of skirted foundations
2. Foundations for offshore wind turbines
3. Det Norske Veritas. 1992. Foundations. Classification notes. Det Norske Veritas (DnV), Hovik, Norway. Vol. 30, No. 4.
4. Feld, T. 2001. Suction buckets, a new innovative foundation concept, applied to offshore wind turbines. Ph.D. thesis, Aalborg University, Aalborg, Denmark.
5. Failure envelopes for offshore shallow foundations under general loading
Cited by
88 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献