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Counterweight negative pressure cylinder type offshore wind turbine foundation adapted to shallow soft overburden batholith seabed and anti-overturning method thereof

A technology of offshore wind turbines and negative pressure cylinders, applied in infrastructure engineering, construction, etc., can solve problems such as the difficulty in providing wind turbine foundation anti-overturning force, achieve good technology promotion value, wide application prospects, and increase wind turbine load resistance Effect

Pending Publication Date: 2018-08-21
FUJIAN PROVINCIAL INVESTIGATION DESIGN & RES INST OF WATER CONSERVANCY & HYDROPOWER
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Problems solved by technology

However, there are many islands around the offshore wind farms in the southeast coast of my country, and most of the soft covering layers on the upper part of the rock base are less than 10.0m. and the negative pressure inside the cylinder are difficult to provide the anti-overturning force required by the fan foundation

Method used

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  • Counterweight negative pressure cylinder type offshore wind turbine foundation adapted to shallow soft overburden batholith seabed and anti-overturning method thereof
  • Counterweight negative pressure cylinder type offshore wind turbine foundation adapted to shallow soft overburden batholith seabed and anti-overturning method thereof

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] The foundation of the counterweight negative pressure cylinder type offshore wind turbine suitable for the shallow and weak overburden rock foundation seabed includes a negative pressure cylinder, a counterweight box is arranged on the negative pressure cylinder, and a truss jacket is arranged on the top surface of the negative pressure cylinder; In the chamber type, a suction hole is set at the upper end of each chamber of the negative pressure cylinder, and each chamber forms negative pressure independently.

[0016] Further, a plurality of counterweight boxes are arranged on the negative pressure cylinder, and the counterweight boxes are evenly distributed on the top surface of the negative pressure cylinder, and the legs of the truss jacket are arranged at the center of the top surface of the negative pressure cylinder.

[...

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Abstract

The invention relates to a counterweight negative pressure cylinder type offshore wind turbine foundation adapted to a shallow soft overburden batholith seabed and an anti-overturning method thereof.The wind turbine foundation comprises a negative pressure cylinder, the negative pressure cylinder is provided with a counterweight box, and the top face of the negative pressure cylinder is providedwith a truss-type offshore jacket; the negative pressure cylinder is a structure in a separate bin type, the upper end of each bin of the negative pressure cylinder is provided with a mud suction hole, and negative pressure is formed in each bin separately. The counterweight negative pressure cylinder type offshore wind turbine foundation adapted to the shallow soft overburden batholith seabed andthe anti-overturning method thereof have the advantages that not only does the performance of the wind turbine foundation meet the requirements on the shallow soft overburden batholith seabed, but also the weight of the wind turbine foundation can be effectively reduced, and the application sea area range of the negative pressure cylinder type offshore wind turbine foundation is significantly expanded.

Description

technical field [0001] The invention relates to a counterweight negative pressure cylinder type offshore fan foundation and an anti-overturning method suitable for shallow soft overburden rock foundation seabed, and specifically relates to a new type of offshore fan foundation, which belongs to the basic structure layout and construction of marine engineering technology field. Background technique [0002] The traditional negative pressure cylinder offshore wind turbine foundation is mostly used in offshore wind farms with weak and thick covering layers. The wind turbine foundation relies on the negative pressure on the side of the cylinder and inside the cylinder to provide the anti-overturning force of the wind turbine foundation. According to the design experience of negative pressure barrel foundations in offshore wind farms at home and abroad, traditional foundations are mostly used in areas with thick overburden layers with weak soil layers exceeding 20 m. However, th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42
CPCE02D27/425
Inventor 甘毅李响亮李祖发王桂兰陈继泉董钿
Owner FUJIAN PROVINCIAL INVESTIGATION DESIGN & RES INST OF WATER CONSERVANCY & HYDROPOWER
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