A construction method for offshore wind power submersible floating foundation
A technology of offshore wind power and construction methods, which is applied in infrastructure engineering, floating buildings, buildings, etc., can solve the problems of large motion response and high complex cost, and achieve the effects of small motion response, good economy, and good stability
Active Publication Date: 2019-12-10
TIANJIN UNIV
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Problems solved by technology
[0005] The present invention aims to solve the technical problems that the offshore wind power floating foundation has a large motion response under wind and wave loads, and the underwater construction process is complicated and costly. It provides a construction method for the offshore wind power submersible floating foundation. The water surface of the form is small, the stability is good, its construction and installation are convenient, and the installation cost is low, which can make the offshore wind power floating foundation better applied to actual projects
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[0033] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0034] Such as Figure 1 to Figure 4 As shown, this embodiment discloses an offshore wind power submersible floating foundation, which consists of a floating platform and a mooring system.
[0035] The floating platform includes a column 1, an inclined strut 2, and a pontoon 3. The upper end of the column 1 is connected to the fan tower through a flange, and the lower end of the column 1 is fixedly connected to the pontoon 3. A plurality of inclined struts 2. Considering that the cabin and blades of offshore wind turbines are heavy and are 80-100m above the water surface, in order for the wind turbines to generate electricity normally, it is necessary to ensure the stability of the foundation under the combined action of wind and waves and t...
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The invention belongs to the technical field of offshore wind power foundation, and discloses a novel offshore wind power submersible floating foundation and a construction method thereof. The foundation consists of a floating platform and a mooring system. The floating platform comprises a standing column, a floating box and an inclined supporting rod. The mooring system comprises a straight mooring line, an inclined mooring line and a plurality of anchoring units connected through beam elements. During construction, the floating platform and the mooring system with upper draught fan tower barrels are towed separately, and the anchoring units sink and are embedded in the seabed; the upper ends of the straight mooring line and the inclined mooring line pass through reserved hole channels and the inclined supporting rod, and anchoring is conducted on the inclined mooring line and the straight mooring line after the floating platform sinks to the position. The foundation provides enoughbuoyancy stability when towing is conducted, is less affected by wave load when in position, achieves a water tension system, and reduces the difficulty of installing mooring line under water, anchoring foundation provides anti-pulling force through ballast load and friction resistance, the foundation penetrates the seabed through surcharge and internal and external pressure difference, and construction is convenient.
Description
technical field [0001] The invention belongs to the technical field of offshore wind power foundations, and in particular relates to a construction method for an offshore wind power submersible floating foundation, which has good stability, convenient construction and installation, and low engineering and installation costs. Background technique [0002] The concept of floating foundation comes from the deep-sea oil and gas development platform, which means that the foundation is not in direct contact with the seabed, but is connected to the seabed through anchor cables or cables, so that the wind turbine can move freely in a relatively fixed area. The foundation is currently mainly in the research and development and demonstration stage, but it has strong adaptability to the marine environment. Compared with the implanted foundation, the construction is less difficult and the operation and maintenance costs are lower. Therefore, it has a good application prospect in the deve...
Claims
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IPC IPC(8): B63B35/44E02D27/42E02D27/50
CPCB63B35/44B63B2035/446E02D27/425
Inventor 乐丛欢丁红岩练继建李彦娥张浦阳
Owner TIANJIN UNIV