Method to determine the ultimate horizontal bearing capacity of offshore wind turbine monopiles with grouting protection against scouring

Zhang, Fengpeng; Chen, Xuguang; Feng, Tao; Zhang, Yangyang; Guan, Jinyang

doi:10.1016/j.oceaneng.2023.115638

Cited by 1 publication

(2 citation statements)

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“…The sequence of scouring development in this combined form of scour protection was described as cracking developing from the homogeneous seabed after grouting, peeling off grouting blocks, the incipient motion of these blocks, and abrasion from sand-laden flow [69]. Furthermore, previous studies [70,71] found that the high-pressure jet grouting measures are able to significantly increase the ultimate horizontal bearing capacity under static loads and provide more stability under cycle loads. The main reason for this strengthening effect is that the pile sediment structure is closed by grouting [70].…”

Section: Ground Improvement Protectionmentioning

confidence: 99%

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Scour Protection Measures for Offshore Wind Turbines: A Systematic Literature Review on Recent Developments

Wei,

Malekjafarian,

Salauddin

2024

Energies

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Offshore wind energy is considered as one of the most promising resources of clean and renewable energy to replace fossil fuels. Additionally, its cost is expected to be lower than onshore wind energy as the technology matures. Offshore wind turbines (OWTs) normally operate in harsh ocean environments, which could impact their structural integrity. Scour erosion around foundations of OWTs can substantially change the overall stiffness of these structures and shorten their lifetime. Currently, there are a limited number of studies on countermeasures and their engineering requirements for decreasing the scouring effect; this is due to their different hydraulic circumstances, such as their stability, reliability, and resistance capacity. To this end, advancements in scour protection measures in the offshore energy sector are evaluated in this paper through a thorough and critical review following the PRISMA systematic literature mapping approach. This includes 68 papers on scour protection and over 30 scour protection designs for various types of wind turbine foundations. Here, we aim to provide an overview of the latest scouring protection measures and their comprehensive assessment, as well as their prospects and future challenges. The findings of this study will provide key insights into scour protection measures for OWTs and will subsequently contribute to the future growth of the offshore renewable energy sector.

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Section: Ground Improvement Protectionmentioning

confidence: 99%

“…The main reason for this strengthening effect is that the pile sediment structure is closed by grouting [70]. Moreover, the method used to determine the ultimate horizontal bearing capacity of this grouting protection was initially studied based on the limit equilibrium method [71].…”

Section: Ground Improvement Protectionmentioning

confidence: 99%