RESEARCH ON APPLICABILITY OF SIMPLIFIED BEARING CAPACITY CALCULATION METHOD FOR BUCKET FOUNDATIONS FOR OFFSHORE WIND POWER

Zhang Hao; Hou Jinfang; Liu Run; Wang Jiayu; Sun Ruohan

doi:10.19912/j.0254-0096.tynxb.2024-0890

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (9) : 181-188. DOI: 10.19912/j.0254-0096.tynxb.2024-0890

RESEARCH ON APPLICABILITY OF SIMPLIFIED BEARING CAPACITY CALCULATION METHOD FOR BUCKET FOUNDATIONS FOR OFFSHORE WIND POWER

Zhang Hao¹, Hou Jinfang^2,3, Liu Run⁴, Wang Jiayu¹, Sun Ruohan¹

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Abstract

Numerical analysis has been conducted to examine the bearing characteristics of bucket foundations with various embedment ratios under vertical, sliding, and overturning loads. Comparative analyses between the results obtained from the Hansen formula, the caisson deep foundation formula, earth pressure-based calculation methods, and numerical simulations have elucidated the applicability ranges of these methodologies. The findings demonstrate that the vertical bearing capacity calculations using the Hansen formula align closely with the numerical analysis results, surpassing those obtained through the caisson deep foundation formula. Additionally, it was determined that the anti-slide and anti-overturning bearing capacity calculations based on earth pressure theory and the caisson deep foundation formula respectively are appropriate only for bucket foundations with embedment ratios ranging from 0.25 to 1.

Key words

offshore wind turbines / bearing capacity / numerical analysis / bucket foundation / embedment ratio

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Zhang Hao, Hou Jinfang, Liu Run, Wang Jiayu, Sun Ruohan. RESEARCH ON APPLICABILITY OF SIMPLIFIED BEARING CAPACITY CALCULATION METHOD FOR BUCKET FOUNDATIONS FOR OFFSHORE WIND POWER[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 181-188 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0890

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