STUDY ON THE BEARING CHARACTERISTICS OF NOVEL PERFORATED GRAVITY ANCHORS FOR OFFSHORE FLOATING PHOTOVOLTAIC STATIONS

Liang Zhenyu; Liu Run; Sun Ruohan; Liu Mengmeng

doi:10.19912/j.0254-0096.tynxb.2024-1374

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (12) : 788-796. DOI: 10.19912/j.0254-0096.tynxb.2024-1374

STUDY ON THE BEARING CHARACTERISTICS OF NOVEL PERFORATED GRAVITY ANCHORS FOR OFFSHORE FLOATING PHOTOVOLTAIC STATIONS

Liang Zhenyu¹, Liu Run^1,2, Sun Ruohan¹, Liu Mengmeng¹

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Abstract

To enhance the anchoring capacity of gravity anchors, a novel perforated gravity anchor was proposed. Numerical analysis methods were employed to study the effects of foundation perforation rate （R）, number of perforations （N）, and perforation shape （S） on the anchoring capacity of gravity anchors in homogeneous saturated clay. An empirical formula was established to determine the anchoring capacity. The study found that with a fixed number of perforations N, both horizontal and uplift anchoring capacities of the foundation decrease with increasing porosity rate R. When the porosity rate R is constant, the horizontal and uplift anchoring capacity coefficients N_cH and N_cV significantly increase with the increase in N. Specifically, N_cH growth rate slows and stabilizes when N≥16, while N_cV grows slowly for 9<N<16 and remains constant when N≥16. The perforation shape has a minor effect on the anchoring capacity. The research results provide a theoretical basis for optimizing the anchoring foundation design of offshore floating photovoltaic systems, ensuring their stability and reliability in harsh marine environments.

Key words

photovoltaic power / anchor foundation / bearing capacity / floating photovoltaic / perforation rate / perforation shape

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Liang Zhenyu, Liu Run, Sun Ruohan, Liu Mengmeng. STUDY ON THE BEARING CHARACTERISTICS OF NOVEL PERFORATED GRAVITY ANCHORS FOR OFFSHORE FLOATING PHOTOVOLTAIC STATIONS[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 788-796 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1374

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