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Offshore construction method for large-diameter single pile fan foundation structure
The invention discloses an offshore construction method for a large-diameter single pile fan foundation structure. A device used in the construction method comprises a crane ship and a U-shaped transportation pontoon. Devices assembled on the crane ship comprise a crane, a pile gripper and a pile hammer. Devices assembled on the U-shaped transportation pontoon comprise a left fixed clamping ring, a right fixed clamping ring and a sliding groove rail. The construction method includes the specific steps that firstly, after a fan installation machine of the crane ship is in place, the U-shaped transportation pontoon transports a single pile fan foundation structure to a fan pile foundation position, and an anchor is dropped in place; one end of a steel tube pile is hoisted through an upper lifting hook of the crane; the crane is started, and the single pile can rotate around the right fixed clamping ring so that the single pile can be erected; the position of the steel tube pile and the position of the pile gripper on the crane ship are adjusted through the sliding groove rail, the single pile structure is constrained through the pile gripper, and finally piling construction is carried out through the pile hammer. The offshore construction method can meet the requirement for offshore hoisting and construction of offshore large-diameter single piles, and the construction requirements of an offshore wind power plant are met.
Offshore construction method for large-diameter single pile fan foundation structure
The invention discloses an offshore construction method for a large-diameter single pile fan foundation structure. A device used in the construction method comprises a crane ship and a U-shaped transportation pontoon. Devices assembled on the crane ship comprise a crane, a pile gripper and a pile hammer. Devices assembled on the U-shaped transportation pontoon comprise a left fixed clamping ring, a right fixed clamping ring and a sliding groove rail. The construction method includes the specific steps that firstly, after a fan installation machine of the crane ship is in place, the U-shaped transportation pontoon transports a single pile fan foundation structure to a fan pile foundation position, and an anchor is dropped in place; one end of a steel tube pile is hoisted through an upper lifting hook of the crane; the crane is started, and the single pile can rotate around the right fixed clamping ring so that the single pile can be erected; the position of the steel tube pile and the position of the pile gripper on the crane ship are adjusted through the sliding groove rail, the single pile structure is constrained through the pile gripper, and finally piling construction is carried out through the pile hammer. The offshore construction method can meet the requirement for offshore hoisting and construction of offshore large-diameter single piles, and the construction requirements of an offshore wind power plant are met.
Offshore construction method for large-diameter single pile fan foundation structure
WU YONGXIANG (author) / LIU JINQUAN (author) / LIU LIYUAN (author) / CAO ENZHI (author)
2016-01-13
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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