In an upgrading and modification project of the pile leg of a jack-up wind power platform,it is nec-essary to replace 4 pile legs of the platform with 4 new pile legs.This paper analyzed and studied the project,and de-veloped the technology of the pile leg removal and lifting installation technology for the platform at the dock.Through the design of the lifting ring and positioning tooling,this paper satisfied the requirements of design drawing on lifting accuracy and straightness,and finally completed the pile leg upgrading and modification work.
jack-up wind power platformpile legaccuracypositioning tooling
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