Annular prefabricated assembly beam plate type fan foundation and installation method

A prefabricated assembly, fan foundation technology, applied in infrastructure engineering, construction, etc., can solve problems such as damage, limited strength of assembly foundation, limited connection strength of prefabricated parts, etc., and achieve the effect of improving grouting quality and strengthening annular structure.

Pending Publication Date: 2022-03-01
CSIC CHONGQING HAIZHUANG WINDPOWER EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prefabricated parts of the existing prefabricated fan foundation are generally connected by slurry filling, the connection strength between the

Method used

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  • Annular prefabricated assembly beam plate type fan foundation and installation method
  • Annular prefabricated assembly beam plate type fan foundation and installation method
  • Annular prefabricated assembly beam plate type fan foundation and installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1, hoop prefabricated beam-slab fan foundation:

[0046] see Figure 1 to Figure 5 , the circumferential prefabricated beam-slab fan foundation in one embodiment includes a cushion layer 1, a prefabricated beam-slab unit 2, a bottom grouting body 3, a joint grouting body 4, a hoop prestressed cable 5 and an anchor bolt assembly 6, It can improve the overall strength of the assembled fan foundation and improve the anti-seismic capability of the fan foundation.

[0047] see Figure 1 to Figure 3 Specifically, the cushion layer 1 is poured at the bottom of the corresponding area of ​​the wind turbine foundation. Cushion 1 is used to support the upper foundation components and finally support the fan system. It can be understood that the cushion layer 1 is generally poured on site at the bottom of the foundation pit. The thickness and material of the cushion layer 1 can be set according to needs, for example but not limited to, the thickness can be 50mm-250mm, ...

Embodiment 2

[0054] Embodiment 2, the installation method of the circumferential prefabricated beam-slab fan foundation:

[0055] According to the circumferential prefabricated and assembled beam-slab fan foundation in the above embodiment, the present invention also provides an installation method suitable for the above-mentioned circumferential prefabricated and assembled beam-slab fan foundation, so as to improve the construction efficiency of the fan foundation and ensure the construction of the fan foundation Quality; the installation method of the circumferential prefabricated beam-slab fan foundation in an embodiment includes the following steps:

[0056] S1: Cushion 1 construction. The cushion layer 1 is poured on site and maintained according to the area where the prefabricated beam-slab fan foundation is installed in the circumferential direction.

[0057] According to the circumferential prefabricated beam-slab fan foundation, the foundation pit is excavated at the construction...

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Abstract

The invention relates to the technical field of wind driven generator foundation structures, and discloses an annular prefabricated assembly beam plate type fan foundation which is characterized in that an annular prefabricated assembly beam plate type fan foundation cushion layer is poured at the bottom of a corresponding area of a wind driven generator foundation; the annular structure is formed by annularly distributing a plurality of precast beam and slab units, the annular structure is arranged above the cushion layer, the annular structure and the cushion layer are in filling connection through a bottom grouting body, and any two adjacent precast beam and slab units are in filling connection through an abutted seam grouting body; the annular prestressed cable is arranged on the outer side of the annular structure in a surrounding mode, and the annular prestressed cable is tightly attached to the outer side of the annular structure and tensioned; and the anchor bolt assemblies are arranged on the precast beam and slab units respectively and used for being connected with a bottom flange of the fan tower drum. The overall strength of the assembly type fan foundation can be improved, and the shock resistance of the fan foundation is improved. Meanwhile, the invention further provides an installation method of the annular prefabricated assembly beam plate type draught fan foundation.

Description

technical field [0001] The invention relates to the technical field of wind power generator foundation structures, in particular to a ring-direction prefabricated and assembled beam-slab fan foundation and an installation method. Background technique [0002] With the vigorous development of clean energy, my country's wind power projects have ushered in a large-scale construction climax, which puts forward higher requirements for construction efficiency and construction quality. With the development of large-scale units, the diameter of the fan base is larger and the construction is more difficult. Problems such as inconvenient concrete transportation, poor quality of concrete pouring, and discontinuous pouring gradually became prominent. [0003] The prefabrication and assembly of the fan foundation meets the development needs of the national construction industrialization. A new type of fan foundation made by factory prefabrication, on-site assembly and joint filling with...

Claims

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Application Information

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IPC IPC(8): E02D27/42
CPCE02D27/425
Inventor 黄冬平孔维博兰永森李强周扬彭驰柴鋆
Owner CSIC CHONGQING HAIZHUANG WINDPOWER EQUIP
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