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Fan anchor bolt foundation grouting steel formwork design method

A technology of foundation grouting and design method, which is applied in basic structure engineering, construction, etc., can solve the problems of unfavorable offshore wind power foundation transportation and construction, and achieve the effect of ensuring the quality of grouting construction, eliminating the risk of height difference, and reducing the difficulty of transportation

Pending Publication Date: 2022-07-29
CCCC THIRD HARBOR ENG +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In addition, at present, wind power is developing rapidly in my country, and the oversized components used in this asymmetric structure are not conducive to the transportation and construction of offshore wind power foundations.

Method used

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  • Fan anchor bolt foundation grouting steel formwork design method
  • Fan anchor bolt foundation grouting steel formwork design method
  • Fan anchor bolt foundation grouting steel formwork design method

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Embodiment 3

[0049] like Figures 1 to 4 As shown, in this embodiment, the inner diameter of the anchor plate 10 used is 6.2m, and the outer diameter is 6.8m. The distance between the anchor plate 10 and the foundation is 13 cm.

[0050] In the design method of the grouting steel formwork for the fan anchor bolt foundation in this embodiment, the formwork is divided into three layers of formwork, including an inner formwork 20, an outer formwork 30 and a middle formwork, and each layer of formwork adopts 8 modules with a central angle of 90°. Since the site structure in this embodiment is relatively large, 8 modules can meet the on-site transportation requirements,

[0051] The outer diameter of the inner formwork 20 is 6m, and the inner diameter of the anchor plate 10 is spaced by 10cm, which facilitates the transportation and ramming of the grouting material 40 during grouting. When the modules of the inner formwork 20 are installed, a wedge-shaped rubber block with a thickness of 1-2 ...

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Abstract

The invention provides a fan anchor bolt foundation grouting steel formwork design method. The fan anchor bolt foundation grouting steel formwork design method comprises the steps that overall modular design is conducted; designing the size of the template; template connection design; and processing and assembling the template. In the fan anchor bolt foundation grouting steel formwork design method, overall modular design is adopted, and a formwork is divided into three layers of formworks, namely an inner formwork, a middle formwork and an outer formwork. The three layers of templates respectively comprise a plurality of modules, and then different numbers of modules in each layer and thicknesses of steel plates adopted by the modules are correspondingly designed according to different outer diameters of anchor plates, so that the transportation difficulty and the rigidity requirement of the templates can be greatly reduced. Besides, in the size design of the formwork, enough space and construction allowance are reserved for grouting construction, the middle formwork is in a V-shaped design, the risk of corner collapse is eliminated, and the field grouting construction quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of foundation construction, in particular to a method for designing a grouting steel formwork for a fan anchor bolt foundation. Background technique [0002] The prestressed anchor bolt connection method has now become the mainstream connection method between the wind turbine foundation and the upper tower. The anchor bolt penetrates the foundation and is anchored to the base plate through the anchor plate. The structure is continuous and there is no sudden change in stiffness; the steel bar and the anchor bolt cross It is mutually set up, and the structural integrity is good, which makes the foundation of the fan stable. At the same time, after prestressed tensioning, the upper and lower anchor plates exert tension on the reinforced concrete, and the fan foundation is always in a state of compression, the force is uniform, and there is no stress concentration, which effectively improves the ability of the f...

Claims

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Application Information

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IPC IPC(8): E02D15/04E02D27/50E02D27/44
CPCE02D15/04E02D27/50E02D27/44
Inventor 张悦然张恒刘恒孙烜杜炎丰汪冬冬王大鹏张建云章廉虎张岩
Owner CCCC THIRD HARBOR ENG
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