A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Laboratory tests on measures of reducing penetration resistance in bucket foundation installation
In recent years, bucket foundations have continuously been developed for offshore wind turbine, and the diameter of the bucket foundation has also increased with an increase in the load subjected to wind and waves. However, the bucket foundation can experience minor inclination during the installation process owing to soil anisotropy, which can largely increase the installation resistance. First, two types of bucket foundations were proposed, which represent the inclined state of the bucket foundation during the installation, to analyze the increase of the penetration resistance. Then, two methods of reducing penetration resistance are proposed: the first is to set a metallic loop for shearing soil on the bucket wall, and the other is to use a secondary installation method which is a penetrate-jack-penetration installation method. Five model tests are performed to analyze the penetration resistance of the two types of bucket foundations and the validation of the two reducing penetration resistance methods. The tests results show that the penetration resistance of the two types of foundations is larger than that of the vertical-skirt bucket foundation. After setting the metallic loop for shearing soil, the ultimate penetration resistance of the two foundations is decreased greatly. This research will provide engineering guidance for the installation of bucket foundations.
Laboratory tests on measures of reducing penetration resistance in bucket foundation installation
In recent years, bucket foundations have continuously been developed for offshore wind turbine, and the diameter of the bucket foundation has also increased with an increase in the load subjected to wind and waves. However, the bucket foundation can experience minor inclination during the installation process owing to soil anisotropy, which can largely increase the installation resistance. First, two types of bucket foundations were proposed, which represent the inclined state of the bucket foundation during the installation, to analyze the increase of the penetration resistance. Then, two methods of reducing penetration resistance are proposed: the first is to set a metallic loop for shearing soil on the bucket wall, and the other is to use a secondary installation method which is a penetrate-jack-penetration installation method. Five model tests are performed to analyze the penetration resistance of the two types of bucket foundations and the validation of the two reducing penetration resistance methods. The tests results show that the penetration resistance of the two types of foundations is larger than that of the vertical-skirt bucket foundation. After setting the metallic loop for shearing soil, the ultimate penetration resistance of the two foundations is decreased greatly. This research will provide engineering guidance for the installation of bucket foundations.
Laboratory tests on measures of reducing penetration resistance in bucket foundation installation
Zhai, Hanbo (author) / Zhang, Puyang (author) / Ding, Hongyan (author) / Le, Conghuan (author) / Wei, Wei (author)
Marine Georesources & Geotechnology ; 39 ; 929-936
2021-07-08
8 pages
Article (Journal)
Electronic Resource
Unknown
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