INFLUENCE OF BUCKET SPACING ON BEARING CAPACITY OF TETRAPOD SUCTION BUCKET JACKET IN SAND

Le Conghuan; Jiang Mingtao; Ren Jianyu; Hu Hao; Zhang Puyang; Ding Hongyan

doi:10.19912/j.0254-0096.tynxb.2021-0819

PDF(4475 KB)

Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (1) : 232-238. DOI: 10.19912/j.0254-0096.tynxb.2021-0819

INFLUENCE OF BUCKET SPACING ON BEARING CAPACITY OF TETRAPOD SUCTION BUCKET JACKET IN SAND

Le Conghuan^1,2, Jiang Mingtao^2,3, Ren Jianyu², Hu Hao², Zhang Puyang^1,2, Ding Hongyan^1,2,4

Author information +

History +

Abstract

Suction bucket jacket is a new type foundation for offshore wind turbines that has emerged in recent years. However, there are relatively few studies on its load-bearing characteristics. In this paper, a tetrapod suction bucket jacket for offshore wind turbine is studied. The influence of the bucket spacing on the ultimate bearing capacity of the tetrapod suction bucket jacket in sand is studied by establishing finite element models of the tetrapod suction bucket jackets with different bucket spacing. It is found that the vertical bearing capacity of the tetrapod suction bucket jacket is not greatly affected by the bucket spacing, while the ultimate bearing capacity of horizontal, bending moment and torque show a significant increasing trend with the increase of the bucket spacing.

Key words

offshore wind power / foundation / bearing capacity / bucket spacing

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Le Conghuan, Jiang Mingtao, Ren Jianyu, Hu Hao, Zhang Puyang, Ding Hongyan. INFLUENCE OF BUCKET SPACING ON BEARING CAPACITY OF TETRAPOD SUCTION BUCKET JACKET IN SAND[J]. Acta Energiae Solaris Sinica. 2023, 44(1): 232-238 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0819

References

[1] GWEC, Global wind report 2021[R]. report 2021[R]. Global Wind Energy Council, 2021.
[2] TJELTA T I.Geotechnical aspects of bucket foundations replacing piles for the Europipe 16/11-E jacket[C]//Offshore Technology Conference, Houston, TX, USA, 1994.
[3] 张浦阳, 黄宣旭. 海上风电吸力式筒型基础应用研究[J]. 南方能源建设, 2018, 4(5): 12-19.
ZHANG P Y,HUANG X X.Application research on suction bucket foundation for offshore wind power[J].Southern energy constrcution, 2018, 4(5): 12-19.
[4] 乐丛欢, 任建宇, 姜明涛, 等. 砂土中四筒导管架风机基础抗弯承载力研究[J]. 海洋工程, 2021, 39(2):12-19.
LE C H, REN J Y, JIANG M T, et al.Analysis of the moment bearing capacity of four-bucket jacket foundation in sandy soil[J]. The ocean engineering, 2021, 39(2): 12-19.
[5] KIM S R, HUNG L C, OH M.Group effect on bearing capacities of tripod bucket foundations in undrained clay[J]. Ocean engineering, 2014, 79:1-9.
[6] 刘树杰. 海上风机吸力式多桶组合基础承载力特性研究[D]. 大连: 大连理工大学, 2009.
LIU S J.A Study on bearing capacitybehavior of suction multi-bucket foundation for offshore wind turbine[D]. Dalian: Dalian University of Technology, 2009.
[7] 丁红岩, 张超, 张浦阳, 等. 上覆软土层对海上风电四筒基础承载特性影响[J]. 哈尔滨工程大学学报, 2020, 41(1): 67-75.
DING H Y, ZHANG C,ZHANG P Y, et al.Effect of overlying soft soil layer on bearing capacity of four bucket foundation for offshore wind turbines[J]. Journal of Harbin Engineering University, 2020, 41(1): 67-75.
[8] FAIZI K, FARAMARZI A, DIRAR S, et al.Investigating the monotonic behaviour of hybrid tripod suction bucket foundations for offshore wind towers in sand[J]. Applied ocean research, 2019, 89: 176-187.
[9] 金书成, 张永涛, 仇正中. 砂土地基多桶组合结构竖向承载力研究[J]. 土木工程与管理学报, 2013, 30(3):33-37.
JIN S C,ZHANG Y T,QIU Z Z.Study on the vertical bearing capacity of composite multi-bucket structure in sandy sand[J]. Journal of civil engineering and management, 2013, 30(3): 33-37.
[10] VILLALOBOS F A.Model testing of foundations for offshore wind turbines[D]. Oxford: University of Oxford, 2006.
[11] TRAN N X, HUNG L C, KIM S R.Evaluation of horizontal and moment bearing capacities of tripod bucket foundations in sand[J]. Ocean engineering, 2017, 140:209-221.
[12] HUNG L C, KIM S R.Evaluation of vertical and horizontal bearing capacities of bucket foundations in clay[J]. Ocean engineering, 2012, 52: 75-82.