Application of Multi-Beam Sounding System in the Monitoring of Pile Foundation Erosion of Offshore Wind Turbines

ZHENG Hui; ZHU Tingting; HE Zhiyun; QI Yongle

doi:10.16516/j.gedi.issn2095-8676.2023.01.011

SOUTHERN ENERGY CONSTRUCTION > 2023 > 10(1): 88-97. > DOI: 10.16516/j.gedi.issn2095-8676.2023.01.011 CSTR: 32391.14.j.gedi.issn2095-8676.2023.01.011

ZHENG Hui, ZHU Tingting, HE Zhiyun, QI Yongle. Application of Multi-Beam Sounding System in the Monitoring of Pile Foundation Erosion of Offshore Wind Turbines[J]. SOUTHERN ENERGY CONSTRUCTION, 2023, 10(1): 88-97. DOI: 10.16516/j.gedi.issn2095-8676.2023.01.011

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Application of Multi-Beam Sounding System in the Monitoring of Pile Foundation Erosion of Offshore Wind Turbines

1.
Eye View AI TECH CROP, Shanghai 201210, China
2.
Jiangsu Province Surveying & Mapping Engineering Institute, Nanjing 210013, Jiangsu, China
3.
Rainbow Fish Technology(Guangdong)Co., Ltd., Zhuhai 519000, Guangdong, China
4.
China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, China

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Received Date: December 29, 2021
Revised Date: May 25, 2022
Available Online: November 29, 2022

Abstract

Abstract

Introduction The purpose is to study the influence of tidal current and wave on the sub-aqueous foundation of wind turbine in offshore wind farm.
Method Through two seabed topography surveys, the changes of seabed topography were compared.
Result The study shows that the erosion of the foundation of offshore wind turbines mainly occur in the direction of local tides. In the early stage of construction, a deep scour pit will be formed, and scour troughs will appear after two years, and siltation will appear around the foundation after the scour troughs are formed.
Conclusion Long-term monitoring of the foundation erosion of offshore wind turbines is helpful to understand the changes in the extent and depth of erosion. Hydrological surveys will help to establish ocean hydrodynamic models to predict the foundation erosion of wind turbines. Measures such as rock dumping and solidified soil should be carried out for erosion filling to delay the occurrence of erosion.
- offshore wind farm,
- single-column pile,
- scour,
- multi-beam sounding,
- erosion

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References (11)

References

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QI Yongle, qiyongle@gedi.com.cn

4.
China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, China

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Application of Multi-Beam Sounding System in the Monitoring of Pile Foundation Erosion of Offshore Wind Turbines