Author(s)

Hao Gu ¹, Guangsi Chen ^1,2, Yanshen Wu ³, Botao Xie ⁴, Shuangshuang Liu ³, Zhiguo Ma ³, Chao Liang ¹, Ye Yao ⁵, Le Wang ¹

Affiliation(s)

¹ State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China
² Liaoyang City Billion Ming New Energy Limited Company, Liaoyang, 111200, China
³ China Oilfield Services Limited Company, Tianjin, 300000, China
⁴ CNOOC Research Institute Limited Company, Beijing, 100027, China
⁵ Maritime College, Tianjin University of Technology, Tianjin, 300384, China

Corresponding Author

Guangsi Chen

ABSTRACT

The suction pile-bucket composite foundation, as a new type of offshore wind power foundation, is receiving increasing attention. To study the bearing characteristics of the suction pile-bucket composite foundation under soft clay conditions, this paper conducts small-scale centrifuge model tests on the suction pile-bucket composite foundation under vertical (V) and combined vertical-horizontal (V-H) loading forms. The experimental results indicate that the soil surrounding the foundation subsides significantly after loading. Additionally, the soil opposite to the direction of the foundation's horizontal displacement forms a circular failure surface around the foundation, with the deformation magnitude gradually decreasing outward. The unidirectional load-displacement (Fz-s) curve of the composite foundation in clay conditions is analyzed, and it is found that increasing the length of the suction pile can effectively improve the bearing capacity of the foundation synergy. Finally, the V-H envelope curve of the bearing capacity of the suction pile-bucket composite foundation under soft clay conditions is drawn, which approximately presents a quarter-ellipse shape and shows obvious symmetry.

KEYWORDS

Centrifuge Test, Suction Pile-Bucket Composite Foundation, Soft Clay, Bearing Capacity, Offshore Wind Power

CITE THIS PAPER

Hao Gu, Guangsi Chen, Yanshen Wu, Botao Xie, Shuangshuang Liu, Zhiguo Ma, Chao Liang, Ye Yao, Le Wang, The Centrifuge Model Test on Bearing Characteristics of Suction Pile-Bucket Composite Foundation in Soft Clay. Journal of Civil Engineering and Urban Planning (2024) Vol. 6: 106-110. DOI: http://dx.doi.org/10.23977/jceup.2024.060312.

REFERENCES

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