RESEARCH ON INSTALLATION CHARACTERISTICS OF SUCTION PILE-BUCKET COMPOSITE FOUNDATION FOR OFFSHORE WIND TURBINES

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

doi:10.19912/j.0254-0096.tynxb.2023-1726

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (2) : 522-528. DOI: 10.19912/j.0254-0096.tynxb.2023-1726

RESEARCH ON INSTALLATION CHARACTERISTICS OF SUCTION PILE-BUCKET COMPOSITE FOUNDATION FOR OFFSHORE WIND TURBINES

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

The installation characteristics of pile-bucket composite foundations are different from those of driven monopile foundations, and it is necessary to assess the suction required during installation. Based on theoretical and experimental analysis, this paper studies the installation characteristics of suction pile-bucket composite foundation, the calculation methods of required suction are discussed. The results show that the suction pile-bucket composite foundation can be installed in place by two-steps, which can save the driving cost. By increasing the number of cabins of bucket foundation, the inclination can be controlled effectively in the sinking process. The calculation method based on S_u and CPT is suitable for the prediction of the required suction during the evaluation of fundation subsidence, but the suction pile installation will be affected by the bucket foundation in place, which increases the required suction for installation.

Key words

offshore wind power / pile-bucket composite foundation / required suction / cabins

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Ma Wenguan, Qiu Xu, Liu Xin, Zhang Bo, Li Hui, Zhao Hao. RESEARCH ON INSTALLATION CHARACTERISTICS OF SUCTION PILE-BUCKET COMPOSITE FOUNDATION FOR OFFSHORE WIND TURBINES[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 522-528 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1726

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