A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
On the pile tension capacity of scoured tripod foundation supporting offshore wind turbines
Highlights A method was presented to evaluate the pile tension capacity of scoured tripod foundation. Dimensions of the scour hole around the pile and column of tripod foundation were both considered. Parametric analyses were performed on a tripod pile under various scour-hole dimensions. Pile tension capacity of tripod foundation decreased with development of scour hole.
Abstract The application of tripod foundations in offshore wind turbines means that the piles are subjected to obvious uplift loads, while a process of soil erosion around offshore foundations caused by waves and currents, i.e. scour, can result in a reduced foundation capacity in vertical direction. However, currently few efforts have been made to evaluate the scour behavior around the tripod foundation, and the literature available on the investigation of scour effect on the tension capacity of tripod pile is also scanty. This study is to present a simplified method for the analysis of pile tension capacity of scour-affected tripod foundation in sand, which can account properly for various dimensions of the local scour hole formed around the tripod piles as well as that of the local scour hole under the main column of the tripod foundation. Based on a field scour measurement at a tripod foundation in the Alpha Ventus test site, a series of parametric analyses are performed by using the present method on a tripod pile under a wide range of scour-hole dimensions of the tripod foundation. The effects of depth, width, slope angle of the scour hole around both the pile and the main column of the tripod foundation as well as that of pile slenderness on the tension capacity of the tripod pile are discussed.
On the pile tension capacity of scoured tripod foundation supporting offshore wind turbines
Highlights A method was presented to evaluate the pile tension capacity of scoured tripod foundation. Dimensions of the scour hole around the pile and column of tripod foundation were both considered. Parametric analyses were performed on a tripod pile under various scour-hole dimensions. Pile tension capacity of tripod foundation decreased with development of scour hole.
Abstract The application of tripod foundations in offshore wind turbines means that the piles are subjected to obvious uplift loads, while a process of soil erosion around offshore foundations caused by waves and currents, i.e. scour, can result in a reduced foundation capacity in vertical direction. However, currently few efforts have been made to evaluate the scour behavior around the tripod foundation, and the literature available on the investigation of scour effect on the tension capacity of tripod pile is also scanty. This study is to present a simplified method for the analysis of pile tension capacity of scour-affected tripod foundation in sand, which can account properly for various dimensions of the local scour hole formed around the tripod piles as well as that of the local scour hole under the main column of the tripod foundation. Based on a field scour measurement at a tripod foundation in the Alpha Ventus test site, a series of parametric analyses are performed by using the present method on a tripod pile under a wide range of scour-hole dimensions of the tripod foundation. The effects of depth, width, slope angle of the scour hole around both the pile and the main column of the tripod foundation as well as that of pile slenderness on the tension capacity of the tripod pile are discussed.
On the pile tension capacity of scoured tripod foundation supporting offshore wind turbines
LIANG, Fayun (author) / ZHENG, Hanbo (author) / ZHANG, Hao (author)
Applied Ocean Research ; 102
2020-08-03
Article (Journal)
Electronic Resource
English
| European Patent Office | 2024
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