Grouting positioning and leveling method for offshore wind turbine jacket foundation setting
A technology for offshore wind turbines and jackets, which is applied in infrastructure engineering, construction, etc., can solve the problems of hidden dangers of wind turbine safety, high maintenance costs, and high costs, and achieve the effect of ensuring grouting connection strength, ensuring stability, and reducing operating time.
Active Publication Date: 2015-04-29
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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Problems solved by technology
During the grouting process of the jacket foundation, if the position of the fan jacket foundation cannot be completely fixed, it will affect the connection strength of the grouting, thereby affecting the stability of the fan jacket foundation, burying safety hazards for the normal operation of the fan, and affecting the operation of the fan Long life and high maintenance cost
[0005] 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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[0032] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0033] In one embodiment, a method for positioning and leveling grouting for foundation installation of an offshore wind turbine jacket includes the following steps:
[0034] Step 1: fixing the connecting piece: welding and fixing the connecting piece on the pile surface at the top of the seabed pile 6;
[0035] Step 2 Measurement: Set the installation point according to the fan jacket foundation 1, drive the subsea pile 6 with connectors into the seabed, and accurately measure the position and inclination of the submarine pile surface and the connectors driven into the seabed;
[0036] Step 3 Leveling: According to the measurement data, adjust the upper and lower positions of the flange 3 on the leg 2 of the fan jacket foundation 1 and weld the flange 3 respectively, so...
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The invention discloses a grouting positioning and leveling method for offshore wind turbine jacket foundation setting. The method includes 1) fixing connecting components, 2) accurately measuring the positions and inclinations of undersea pile surface punched undersea, 3) adjusting upper and lower positions of flanges on pile legs of a wind turbine jacket foundation according to the measured data, welding the flanges respectively, then keeping the flanges horizontal with the wind turbine jacket foundation after the connecting components are locked, 4) locking and fixing, and 5) grouting and fixing. The grouting positioning and leveling method is used for grouting prior to leveling and fixing.
Description
technical field [0001] The invention relates to an installation method of an offshore wind turbine, in particular to a positioning and leveling method for grouting the foundation of an offshore wind turbine jacket. Background technique [0002] In recent years, due to the increasing saturation of onshore wind power, offshore wind power has developed rapidly. [0003] Wind turbine jacket foundation is an important link in offshore wind power construction. Since the seabed in the eastern offshore area of my country is dominated by silty soft soil, the jacket foundation of offshore wind turbines is mostly based on multi-pile caps, four-pile and six-pile jacket foundations. By grouting the annular space between the pile and the pile legs of the wind turbine jacket foundation, the wind turbine jacket foundation and the seabed pile are integrated. [0004] Due to the particularity of offshore construction, the installation process must be affected by the gravity of the wind tu...
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IPC IPC(8): E02D27/42E02D27/52E02D27/12
Inventor 傅强朱荣华张美阳孙香
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD