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Volume 13
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10.3390/jmse13091653
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Numerical Simulation on Anchored Load-Bearing Characteristics of Suction Caisson for Floating Offshore Wind Power

by
Shangle Xie
1,
Chaoyi Sun
1,
Bo Liu
2,
Liji Huang
2,
Huiyuan Deng
2,
Mingxing Zhu
1,*,
Xiaojuan Li
1 and
Guoliang Dai
3,4
1
School of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang 212100, China
2
CCCC Highway Consultants Co., Ltd., Beijing 100010, China
3
School of Civil Engineering, Southeast University, Nanjing 211189, China
4
Advanced Ocean Institute of Southeast University, Southeast University, Nantong 226010, China
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2025, 13(9), 1653; https://doi.org/10.3390/jmse13091653 (registering DOI)
Submission received: 10 July 2025 / Revised: 24 August 2025 / Accepted: 26 August 2025 / Published: 28 August 2025
(This article belongs to the Section Coastal Engineering)
Versions Notes

Abstract

Suction caisson anchor foundations have been widely applied in oil and gas platforms but remain in the exploratory stage for floating offshore wind power applications, where research on their anchor load-bearing characteristics is insufficient. This study focuses on the influence of length-to-diameter ratio, loading angle, and loading point depth on the anchor load-bearing characteristics of suction caisson anchor foundations. Through numerical simulation, the load–displacement curves, internal force distribution along the caisson body, movement mode transitions, and soil failure characteristics were obtained. The results indicate that loading point depth and loading angle alter the movement mode of the suction caisson anchor foundation, directly affecting its bearing capacity. Smaller loading angles result in higher bearing capacity, which initially increases with loading point depth, peaks at 0.6 L, and then decreases at 0.8 L due to a transition in the foundation’s movement mode. Similarly, as the length-to-diameter ratio decreases, the bearing capacity and overall movement amplitude of the foundation decrease, leading to a shift in the optimal loading point position. The circumferential soil pressure and horizontal soil resistance distributions vary significantly with loading angle and depth. The findings of this study provide valuable reference for the design and application of suction caisson anchor foundations.
Keywords: floating offshore wind power; anchor foundation; suction caisson; anchor load-bearing characteristics; numerical simulation floating offshore wind power; anchor foundation; suction caisson; anchor load-bearing characteristics; numerical simulation

Share and Cite

MDPI and ACS Style

Xie, S.; Sun, C.; Liu, B.; Huang, L.; Deng, H.; Zhu, M.; Li, X.; Dai, G. Numerical Simulation on Anchored Load-Bearing Characteristics of Suction Caisson for Floating Offshore Wind Power. J. Mar. Sci. Eng. 2025, 13, 1653. https://doi.org/10.3390/jmse13091653

AMA Style

Xie S, Sun C, Liu B, Huang L, Deng H, Zhu M, Li X, Dai G. Numerical Simulation on Anchored Load-Bearing Characteristics of Suction Caisson for Floating Offshore Wind Power. Journal of Marine Science and Engineering. 2025; 13(9):1653. https://doi.org/10.3390/jmse13091653

Chicago/Turabian Style

Xie, Shangle, Chaoyi Sun, Bo Liu, Liji Huang, Huiyuan Deng, Mingxing Zhu, Xiaojuan Li, and Guoliang Dai. 2025. "Numerical Simulation on Anchored Load-Bearing Characteristics of Suction Caisson for Floating Offshore Wind Power" Journal of Marine Science and Engineering 13, no. 9: 1653. https://doi.org/10.3390/jmse13091653

APA Style

Xie, S., Sun, C., Liu, B., Huang, L., Deng, H., Zhu, M., Li, X., & Dai, G. (2025). Numerical Simulation on Anchored Load-Bearing Characteristics of Suction Caisson for Floating Offshore Wind Power. Journal of Marine Science and Engineering, 13(9), 1653. https://doi.org/10.3390/jmse13091653

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