Novel offshore wind turbine combined foundation aiming at bed rock pitch and construction method thereof

A technology of offshore wind turbines and construction methods, applied in infrastructure engineering, construction, etc.

Active Publication Date: 2018-11-13
FUJIAN YONGQIANG SOIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention is aimed at the above problems. The present invention provides a new type of combined foundation for offshore wind turbines and its construction method aimed at bedrock inclination. By optimizing the traditional gravity foundation construction technology, combined with the multi-pile foundation optimized from the single pile foundation The construction technology, learning from each other's strengths, greatly improves the construction speed of this joint foundation and solves the constraints of the gravity foundation on the geological structure of the rock face tilt.

Method used

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  • Novel offshore wind turbine combined foundation aiming at bed rock pitch and construction method thereof
  • Novel offshore wind turbine combined foundation aiming at bed rock pitch and construction method thereof
  • Novel offshore wind turbine combined foundation aiming at bed rock pitch and construction method thereof

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Embodiment Construction

[0020] A new type of combined foundation for offshore wind turbines and its construction method for bedrock inclination according to the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] As shown in the figure, a new type of combined foundation for offshore wind turbines and its construction method for bedrock inclination is characterized in that the construction steps are as follows:

[0022] Step 1: First, sink several small-diameter single piles (1) at the construction point by using a professional piling ship and a high-frequency vibratory hammer;

[0023] Step 2: The top of the small-diameter single pile (1) and the inclined surface of the rock formation are connected to form a horizontal working surface through the construction of the cap (2), and a circle of evenly distributed conical holes (3) and A row of circular holes (4) is reserved on the lower end side of the bearing platform; the be...

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Abstract

The invention provides a novel offshore wind turbine combined foundation aiming at bed rock pitch and a construction method thereof. The traditional gravity type foundation construction technology isoptimized, and the construction technology capable of optimizing a single-pile foundation into a multi-pile type foundation is combined to make good for deficiency, so that the construction speed of the combined foundation is greatly increased, and the restraint of the geologic structure aiming at bed rock pitch to the gravity type foundation is overcome.

Description

technical field [0001] The invention relates to the civil engineering construction industry, in particular to the field of offshore pile foundation construction, and specifically relates to a novel offshore wind turbine combined foundation and a construction method for bedrock tilting. Background technique [0002] The choice of offshore wind power foundation type mainly depends on the two important factors of water depth and seabed geological conditions, and is also constrained by construction equipment, technology and cost. At present, in the domestic offshore wind power infrastructure construction, the pile foundation structure type is the mainstream direction, while the gravity foundation has not been practically promoted and applied in the domestic offshore wind power field. With the large-scale construction of domestic offshore wind power, it is found that in the coastal areas of Fujian and Guangdong, most of them are lithological foundations with high bearing capacity...

Claims

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Application Information

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IPC IPC(8): E02D27/52E02D27/42
CPCE02D27/425E02D27/52
Inventor 罗承浩邱建伟孔秋平郑添寿许万强邱维衍李丽虹邱育炬
Owner FUJIAN YONGQIANG SOIL
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