Positioning structure for installation and grouting of jacket basis of offshore wind turbine

Abstract

The invention discloses a positioning structure for installation and grouting of jacket basis of offshore wind turbines. The positioning structure includes a plurality of spud legs of the jacket basis and tubular underwater piles. The spud legs and the under water piles are matched with each other and the spud legs are inserted into the underwater piles through the upper nozzles of the underwater piles and suspended in the underwater piles. Spud legs fixing structures are arranged between the underwater piles and the spud legs. According to the positioning structure for installation and grouting of jacket basis of offshore wind turbines, the jacket basis of offshore wind turbines is fixed by the positioning structure in advance and the subsequent grouting is being prepared. The positioning structure is low in cost, easy to operate and small in operating time. Further, there is no need to dismantle the positioning structure.

Description

technical field [0001] The invention relates to an offshore wind turbine, in particular to a positioning structure for grouting the foundation of the jacket of the offshore wind turbine. Background technique [0002] In recent years, due to the increasing saturation of onshore wind power, offshore wind power has developed rapidly. Wind turbine foundation is an important part of offshore wind power construction. Since the seabed in the eastern offshore area of ​​my country is dominated by silty soft soil, the foundations of offshore wind turbines are mostly based on multi-pile caps, four-pile and six-pile jacket foundations. By grouting the annular space between the piles and the legs of the wind turbine foundation, Connect the wind turbine foundation with the pile. [0003] Due to the particularity of offshore construction, the installation process must be affected by the gravity of the wind turbine foundation, wind load, wave load and other loads, especially wind and wave ...

AI Technical Summary

Problems solved by technology

[0003] Due to the particularity of offshore construction, the installation process must be affected by the gravity of the wind turbine foundation, wind load, wave load and other loads, especially wind and wave loads. During the grouting process of the jacket foundation, if the position of the wind turbine foundation cannot be completely fixed , it will affect the connection strength of grouting, thereby affecting the stability of the fan foundation, burying safety hazards for the normal operation of the fan, affecting the operating life of the fan, and high maintenance costs

At present, both at home and abroad use methods such as building positioning platforms or using pile holders, pile clamps, etc., but the operation is complicated, the cost is high, and it needs to be disassembled one by one, which is time-consuming and laborious

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