Method for repairing draught fan concrete foundation cavity through high polymers

A concrete foundation and polymer technology, applied in soil protection, infrastructure engineering, construction, etc., can solve problems such as unsatisfactory repair effect, formation safety, and fans need to be shut down for health period, and achieve technical advantages and economic and social benefits. Remarkable, small construction disturbance, wide application effect

Inactive Publication Date: 2018-12-21
南方工程检测修复技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the operation process, the upper part of the wind turbine drives the foundation ring and the connecting flange to repeatedly generate relative displacement friction with the concrete foundation under the action of wind load, which increases the gap between the foundation ring and the concrete and creates a potential safety hazard.
The existing technology is: pouring cement or epoxy grouting material into the gap through drilling or anchor rods, the fan needs to b

Method used

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  • Method for repairing draught fan concrete foundation cavity through high polymers
  • Method for repairing draught fan concrete foundation cavity through high polymers
  • Method for repairing draught fan concrete foundation cavity through high polymers

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0033] Step 1 Investigate the degree of tearing and damage of the waterproof material at the joint 6 of the fan concrete cap and the tower tube, and the crack width, and use sealant to seal the crack 6 between the concrete cap and the tower tube; and measure the concrete strength of the concrete cap 7 according to the corresponding regulations.

[0034] Step 2 Use the water drilling method or the dry operation method to avoid the perforated ribs and evenly drill four exploration holes 4 vertically on the concrete cap. The micro camera 9 connected by the transmission line 8 is put into the probe hole, slowly descends and continuously rotates to the bottom of the hole to observe the cracks and voids inside the concrete structure, and the whole process is recorded and saved. Micro camera equipment has its own light source and has the function of real-time data t...

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Abstract

The invention discloses a method for repairing a draught fan concrete foundation cavity through high polymers. The method comprises the following steps of 1, appearance analysis and detection, 2, closed circuit television detection, 3, cavity connectivity high-pressure gas detection, 4, injection tube cap manufacturing, 5, injection tube cap installation and 6, high-pressure injection of the highpolymers, thereby completing repairing of the draught fan concrete foundation cavity through the high polymers. The non-excavation rapid maintenance method not requiring a draught fan to stop runningis provided in order to solve implicit diseases such as disengagement in a wind power large-size concrete structure and looseness of a foundation ring, and the method has a low degree of constructiondisturbance, high efficiency and remarkable technical advantages and economic and social benefits as well as broad application prospects.

Description

technical field [0001] This technology belongs to the facility foundation maintenance and repair technology, and specifically relates to the non-excavation high polymer maintenance technology for wind farm fan concrete foundation holes and fan foundation ring loosening diseases. Background technique [0002] Wind power is a clean and green renewable energy, which is of great significance to solve the energy crisis, reduce environmental pollution, and adjust the energy structure. With abundant wind energy resources, my country is the country with the fastest growing wind power generation and the largest scale in the world, and the installed capacity of the wind power industry ranks first in the world. [0003] The foundation ring is the pre-embedded part of the basic equipment supporting the tower structure. The foundation flange ring and the bottom foundation platform are a reinforced concrete composite structure. Due to factors such as wind turbine construction, micro gaps...

Claims

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Application Information

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IPC IPC(8): E02D3/12E02D27/44
CPCE02D3/12E02D27/44
Inventor 王复明赵鹏方宏远潘艳辉郭成超王磊
Owner 南方工程检测修复技术研究院
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