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Lifting and rectifying method of wind turbine foundation

A fan foundation and jacking technology, which is applied in infrastructure engineering, construction, etc., can solve problems such as uneven settlement of fan foundations

Active Publication Date: 2021-05-18
中国能源建设集团辽宁电力勘测设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method for jacking and rectifying the fan foundation to solve the problem of uneven settlement of the fan foundation

Method used

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  • Lifting and rectifying method of wind turbine foundation
  • Lifting and rectifying method of wind turbine foundation
  • Lifting and rectifying method of wind turbine foundation

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Embodiment Construction

[0031] The present invention will be further explained below in conjunction with specific embodiments, but the present invention is not limited thereto.

[0032] like Figure 1 to Figure 4 As shown, the present invention provides a method for jacking and rectifying the wind turbine foundation, comprising the following steps:

[0033] Step 1: Excavate the working pit 6 around the fan foundation with uneven settlement, and form a circumferential working surface under the fan foundation 1, so as to facilitate construction by construction personnel;

[0034] Step 2: Excavating pile pier holes at intervals on the circumferential working surface to meet the depth requirements of the bearing layer of the foundation;

[0035] Step 3: After the pier hole is formed, lower the bound reinforcement cage and pour concrete to form the pier 3, wherein the top surface of the pier 3 is higher than the working surface, and the reinforcement cage includes the main reinforcement 4 of the pier and...

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Abstract

The invention discloses a method for jacking up and rectifying the fan foundation. Firstly, a working pit is excavated under the fan foundation to form a circumferential working surface. Set up the jack and lift it up to make the foundation of the fan reach the specified level. After that, lay pads and wedge-shaped steel plates on the foundation of the fan to make it stably support the foundation of the fan. After that, remove the jacks on the pier symmetrically. Next, Plant bars under the foundation of the wind turbine and bind them to the main bars of the pile pier, perform secondary grouting of fine stone concrete, and twist grouting of dry hard fine stone concrete, and finally backfill the working pit to restore the ground. The jacking and rectifying method of the fan foundation has reasonable steps, can eliminate uneven settlement of the fan foundation, and achieve a safe and reliable structure.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering, and in particular provides a method for jacking up and rectifying the inclination of a fan foundation. Background technique [0002] With the vigorous promotion of new energy strategies by the country, the use of many new energy sources, such as wind energy, solar energy, and nuclear energy, has developed rapidly in recent years. Among them, the use of wind energy, a renewable resource, to serve life and work has been widely recognized universal. [0003] In a wind farm, the foundation of the fan is a particularly important structure. Once a problem occurs, it will bring huge economic losses and adverse social impacts. However, due to various reasons in individual projects, the foundation of the fan will inevitably appear. Various problems, especially the problem of uneven settlement, if demolition measures are taken, will have a huge impact on the construction period and cost...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D35/00
CPCE02D35/00
Inventor 张志强刘麾程鹏陈爱新尚敏帅林伟李平平
Owner 中国能源建设集团辽宁电力勘测设计院有限公司
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