Offshore wind power plant draught fan single pile foundation and construction method

A single-pile foundation and wind farm technology, which is applied in the field of marine engineering building structures and fixed structures, can solve problems such as low construction efficiency, poor adaptability of offshore construction windows, and protracted construction periods, so as to save construction costs and improve the efficiency of rock-socketed construction , to solve the effect of slow rock-socketed construction

Inactive Publication Date: 2016-08-17
SHANGHAI INVESTIGATION DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention is to provide a single pile foundation and construction method for an offshore wind farm fan. For the first time, a rectangular combined cast-in-place pile is proposed in the offshore wind power pile foundation, which is used to solve the problem of pile foundation embedding in the prior art. The circular section of the rock is used, the construction efficiency is low, the adaptability to the offshore construction window is poor, and the technical problems of prolonging the construction period

Method used

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  • Offshore wind power plant draught fan single pile foundation and construction method
  • Offshore wind power plant draught fan single pile foundation and construction method
  • Offshore wind power plant draught fan single pile foundation and construction method

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Embodiment 1

[0037] Such as figure 1 As shown, this embodiment provides a single pile foundation for a fan in an offshore wind farm, including steel pipe piles 1 and cast-in-situ piles 2, a wind turbine tower 4 is installed on the top surface of the steel pipe pile 1, and the steel pipe pile 1 passes through the seabed surface. And stand vertically on the top surface of the underwater bedrock, the inner lower end of the steel pipe pile is provided with a concrete connecting section 3, and the concrete connecting section 3 is extended downward with a cast-in-place pile 2, the lower end of the cast-in-place pile 2 is embedded in the bedrock, and the upper end is connected to the The concrete connecting section 3 is fixedly connected into one body. The lower end surface of the concrete connecting section 3 is flush with the lower end surface of the steel pipe pile 1, and the lower end surface of the concrete connecting section 3 is in close contact with the top surface of the underwater bedro...

Embodiment 2

[0046] to combine image 3 As shown, based on Example 1, the cast-in-place pile 2 is composed of a support pile. The cast-in-place pile 2 is square, and the axis of the square cast-in-place pile 2 coincides with the axis of the concrete connecting section 3 . Construction method see embodiment 1.

Embodiment 3

[0048]combine Figure 4 As shown, based on Example 1, the cast-in-situ pile 2 is composed of a supporting pile. Construction method see embodiment 1.

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Abstract

The invention discloses a single pile foundation for a fan in an offshore wind farm, which includes a steel pipe pile and a cast-in-situ pile. The top surface of the steel pipe pile is installed with a wind turbine tower. On the top surface of the underwater bedrock, the inner lower end of the steel pipe pile is provided with a concrete connecting section, and the concrete connecting section extends downward to provide the cast-in-place pile, the lower end of the cast-in-place pile is embedded in the bedrock, and the upper end is connected to the cast-in-place pile. The concrete connecting section is fixedly integrated, and the cast-in-place pile is composed of at least one support pile, and the cross-section of the support pile is rectangular. The present invention also provides a construction method for the above-mentioned single pile foundation of the wind turbine in the offshore wind farm.

Description

technical field [0001] The invention belongs to a fixed structure, and relates to a marine engineering building structure, in particular to a single pile foundation for a wind turbine in an offshore wind farm and a construction method for a single pile for a wind turbine in an offshore wind farm. Background technique [0002] As the renewable energy with the most exploitable value, wind energy has attracted worldwide attention. Offshore wind farms also have good prospects for development because of their advantages such as high wind speed, long effective power generation time, no land occupation, and close distance to load centers. my country has a vast territory, long coastline, and abundant offshore wind energy resources. [0003] Offshore wind turbines must be supported on the basis of offshore wind turbines; due to the complexity of the marine environment, the foundation cost of offshore wind turbines accounts for more than 20% of the cost of offshore wind farms. Early...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42
CPCE02D27/425
Inventor 乐治济
Owner SHANGHAI INVESTIGATION DESIGN & RES INST
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