RESEARCH ON BEARING CAPACITY OF PILE-BUCKET COMPOSITE FOUNDATIONS FOR OFFSHORE WIND SUCTION IN SAND

Ma Wenguan; Qiu Xu; Liu Xin; Zhang Bo; Li Hui; Zhao Hao

doi:10.19912/j.0254-0096.tynxb.2024-1135

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (11) : 604-613. DOI: 10.19912/j.0254-0096.tynxb.2024-1135

RESEARCH ON BEARING CAPACITY OF PILE-BUCKET COMPOSITE FOUNDATIONS FOR OFFSHORE WIND SUCTION IN SAND

Ma Wenguan^1,2, Qiu Xu^1,2, Liu Xin^1,2, Zhang Bo^1,2, Li Hui^1,2, Zhao Hao^1,2

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Abstract

By adding suction piles, the bucket size can be reduced , which is convenient for transportation and installation. In this paper, centrifugal model experiment and numerical simulation analysis were carried out for the suction pile-bucket composite foundation, and the influence rules of bucket diameter, bucket wall height, suction pile diameter and suction pile length on the bearing capacity performance were studied. The results showed that increasing bucket diameter the significantly improves the bearing performanee, while increaseing pile length enchanees the horizontal bearing performance. The shape of the V-H envelope is not affected by bucket length, pile diameter and pile length, but the size of the envelope will expand outward with the increase of bucket length, pile diameter and pile length, and the influence of bucket diameter on the envelope is the most significant.

Key words

offshore wind power / suction pile-bucket composite foundation / bearing capacity / V-H envelope

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Ma Wenguan, Qiu Xu, Liu Xin, Zhang Bo, Li Hui, Zhao Hao. RESEARCH ON BEARING CAPACITY OF PILE-BUCKET COMPOSITE FOUNDATIONS FOR OFFSHORE WIND SUCTION IN SAND[J]. Acta Energiae Solaris Sinica. 2025, 46(11): 604-613 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1135

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