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Ruping Luo, Mingluqiu Hu, Min Yang, Weichao Li and Anhui Wang
Rigid monopiles with small slenderness ratios (i.e., ratio of monopile embedded length to outer diameter) are widely used as foundations to resist lateral load and moment transferred from superstructures, e.g., large diameter steel pipes used by offshore...
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Mian Xie and Susana Lopez-Querol
Most of the reported centrifuge tests available in the existing literature on offshore wind turbine foundations are focused on the behaviour of monopiles in sands, but very few studies on clayey soils can be found, due to the very long saturation and con...
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Athanasios Tsetas, Apostolos Tsouvalas and Andrei V. Metrikine
During the last decade the offshore wind industry grew ceaselessly and engineering challenges continuously arose in that area. Installation of foundation piles, known as monopiles, is one of the most critical phases in the construction of offshore wind f...
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Xiaoyang Cheng, Andrea Diambra, Erdin Ibraim, Haoyuan Liu and Federico Pisanò
Based on advanced 3D finite element modelling, this paper analyses the stress paths experienced by soil elements in the vicinity of a monopile foundation for offshore wind turbines subjected to cyclic loading with the aim of informing soil laboratory tes...
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Jacob Andersen, Rune Abrahamsen, Thomas Lykke Andersen, Morten Thøtt Andersen, Torben Ladegaard Baun and Jesper Lykkegaard Neubauer
The design of large diameter monopiles (8?10 m) at intermediate to deep waters is largely driven by the fatigue limit state and mainly due to wave loads. The scope of the present paper is to assess the mitigation of wave loads on a monopile by perforatio...
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Rui He, Ji Ji, Jisheng Zhang, Wei Peng, Zufeng Sun and Zhen Guo
With the development of offshore wind energy in China, more and more offshore wind turbines are being constructed in rock-based sea areas. However, the large diameter and thin-walled steel rock-socketed monopiles are very scarce at present, and both the ...
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M.Dolores Esteban, José-Santos López-Gutiérrez, Vicente Negro and Luciano Sanz
The scour phenomenon is critical for monopile structures in offshore wind farms. There are two possible strategies: allowing the development of scour holes around the monopile or avoiding it by placing scour protection. The last one is the most used up t...
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Rui He and Tao Zhu
Monopiles are widely used to support offshore wind turbines as a result of the extensive development of offshore wind energy in coastal areas of China. An offshore wind turbine is a typical high-rise structure sensitive to dynamic loads in ocean environm...
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Lars Vabbersgaard Andersen, Thomas Lykke Andersen and Lance Manuel
Monopiles are the most common type of foundation used for bottom-fixed offshore wind turbines. This investigation concerns the influence of uncertainty related to soil?structure interaction models used to represent monopile?soil systems. The system respo...
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Lars Vabbersgaard Andersen, Thomas Lykke Andersen and Lance Manuel
Monopiles are the most common type of foundation used for bottom-fixed offshore wind turbines. This investigation concerns the influence of uncertainty related to soil–structure interaction models used to represent monopile–soil systems. The ...
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Lars Vabbersgaard Andersen, Thomas Lykke Andersen and Lance Manuel
Monopiles are the most common type of foundation used for bottom-fixed offshore wind turbines. This investigation concerns the influence of uncertainty related to soil–structure interaction models used to represent monopile–soil systems. The ...
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Jiayi Shen, Chang Ge, Yide Zhan, Zhaoyi Ye, Qiang Zhang and Jiawang Chen
Currently, p-y models have been broadly adopted for estimating the lateral bearing capacity of large-diameter monopiles in offshore engineering. However, the existing p-y curves cannot reflect the effect of pile diameter D on the lateral response of mono...
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Huan Wang, Lizhong Wang, Yi Hong, Amin Askarinejad, Ben He and Hualin Pan
The large-diameter monopiles are the most preferred foundation used in offshore wind farms. However, the influence of pile diameter and aspect ratio on the lateral bearing behavior of monopiles in sand with different relative densities has not been syste...
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Tao Li, Xinran Yu, Ben He and Song Dai
With the rapid increase in offshore wind turbines in China, monopiles with diameters exceeding 2 m are widely used. As these piles are subjected to lateral loads caused by wind, waves, and currents, the designs of the pile foundations supporting the offs...
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Bo Sun, Qi Zhang, Wenxuan Zhu, Jian Leng and Guanlin Ye
Monopiles are commonly used in the construction of offshore wind turbines. However, implementing drive-drill-drive construction techniques in decomposed granite seabed may lead to borehole instability during the window period between drilling and pile dr...
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Sergio Sánchez, José-Santos López-Gutiérrez, Vicente Negro and M. Dolores Esteban
Renewable energies are the future, and offshore wind is undoubtedly one of the renewable energy sources for the future. Foundations of offshore wind turbines are essential for its right development. There are several types: monopiles, gravity-based struc...
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Jie Zhang, Kanmin Shen, Bin Wang, Guangyuan Wen and Sa Li
At present, there is no commonly used method for predicting soil resistance to the driving (SRD) of monopiles, because all available methods are developed based on an installed offshore pile with a diameter of 2?3 m. In addition, due to the complexity of...
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Navid Majdi Nasab, Jeff Kilby and Leila Bakhtiaryfard
This paper aims to design an integrated offshore structure capable of supporting a hybrid assembly of one wind plus two tidal turbines. The monopile has been found to be a suitable foundation type as the most inexpensive solution in water depths of less ...
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Ronald Brinkgreve, Diego Lisi, Miquel Lahoz and Stavros Panagoulias
The PISA (Pile Soil Analysis) research project has resulted in a new methodology for the design of offshore wind turbine monopile foundations. A new software tool called PLAXIS Monopile Designer (MoDeTo) has been developed that automates the PISA design ...
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Qiang Li, Luke J. Prendergast, Amin Askarinejad and Ken Gavin
The majority of installed offshore wind turbines are supported on large-diameter, open-ended steel pile foundations, known as monopiles. These piles are subjected to vertical and lateral loads while in service. In current design practice, interaction of ...
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