Foundation fixing pile of wind power generation tower

By employing a fixed base pile and a cross-laid ground pile structure in the wind power tower, the stability and pull-out resistance of the foundation are enhanced, solving the problem of insufficient stability of fixed piles under extreme weather conditions such as strong winds in existing technologies, thus achieving stable operation of the tower and extending its service life.

CN224173363UActive Publication Date: 2026-04-28ZHANGJIAKOU CHENGSHANG NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAKOU CHENGSHANG NEW ENERGY TECHNOLOGY CO LTD
Filing Date
2025-04-09
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing wind power tower fixing piles are not stable enough under extreme weather conditions such as strong winds, and are prone to loosening, which affects the safety of the tower.

Method used

A foundation pile structure was designed, which includes fixed bottom piles and ground-inserting piles embedded in concrete. The ground-inserting piles are arranged intersectingly inside and outside and are equipped with anchor plates and anchor columns. The top of the fixed bottom pile is connected to the mounting base of the power generation tower, which enhances the stability and pull-out resistance of the foundation.

Benefits of technology

This improves the stability and uplift resistance of wind power towers, ensuring stable operation of the towers under harsh weather conditions and extending their service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building construction, in particular to a foundation fixing pile of a wind power generation tower, which comprises a fixing bottom pile embedded in concrete and used for installing the wind power generation tower, and the top of the fixing bottom pile is coaxially connected with a power generation tower installation seat. And a plurality of groups of ground inserting piles which are uniformly and annularly arranged at equal intervals and are pre-buried under the concrete ground are mounted on the bottom surface of the fixed bottom pile. According to the utility model, the fixed bottom pile is pre-buried in concrete, and the power generation tower mounting seat coaxially connected with the top of the fixed bottom pile provides a stable mounting foundation for the wind power generation tower; the ground inserting piles are uniformly and annularly arranged on the bottom surface of the fixed bottom pile at equal intervals, and the ground inserting piles are internally and externally crossed and are provided with a plurality of anchoring discs and anchoring columns which are uniformly and equidistantly arranged, so that the stability and the pulling resistance of the foundation are greatly enhanced, and the wind power generation tower can resist the influence of strong wind and severe weather after being mounted; and stable operation of the wind power generation equipment is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to the foundation piles for wind power generation towers. Background Technology

[0002] With the continuous growth of global demand for renewable energy, wind power, as a clean and renewable energy source, is being developed and applied more and more widely. As a key component of wind power systems, the stability and safety of wind turbine towers are paramount. Existing wind turbine tower fixing technologies often fail to provide sufficient stability in the face of extreme weather conditions such as strong winds. Some traditional fixed pile structures may loosen after prolonged exposure to wind forces, affecting the safety of the tower. Utility Model Content

[0003] The purpose of this invention is to provide foundation piles for wind power towers to solve the problem of insufficient stability of existing wind power tower foundation piles mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The foundation piles of the wind power generation tower include fixed bottom piles embedded in concrete for installing the wind power generation tower. The top of the fixed bottom pile is coaxially connected to the tower mounting base, and the bottom surface of the fixed bottom pile is equipped with several sets of uniformly spaced and ring-shaped ground-inserted piles embedded in the concrete ground.

[0006] The top edge of the power generation tower mounting base is equipped with several uniformly spaced, annularly arranged external threaded columns.

[0007] The ground-inserting piles are arranged in an alternating pattern, with several evenly spaced anchor plates installed on the outer wall of each group of ground-inserting piles, and several evenly spaced anchor columns installed on the top and bottom surfaces of each group of anchor plates.

[0008] Preferably, the bottom area of ​​the power generation tower mounting base is smaller than the top area of ​​the fixed base pile, and the top edge of the fixed base pile is provided with a number of uniformly spaced and ring-shaped ground bolts.

[0009] Preferably, the outer edge of the fixed bottom pile is equipped with several sets of side crossbars pre-embedded in concrete and arranged evenly at equal intervals.

[0010] Preferably, the end of the side crossbar is inserted into the outer wall of the fixed bottom pile and is an integrally formed structure.

[0011] Preferably, the fixed base pile and the power generation tower mounting base are integrally formed structures and both include a steel reinforcement frame and a concrete filling layer.

[0012] Preferably, the ground stake includes a metal inner core and a protective outer shell disposed on its surface.

[0013] Preferably, the anchoring disc passes through the protective outer shell and is connected to the outer wall of the metal inner core layer.

[0014] Compared with existing technologies, the beneficial effects of this utility model are:

[0015] The foundation of this wind turbine tower features fixed bottom piles embedded in concrete, with the tower mounting base coaxially connected to the top of the fixed bottom piles, providing a stable installation foundation. Several sets of ground-inserting piles arranged in a ring at even intervals on the bottom surface of the fixed bottom piles, along with anchor plates and anchor columns arranged at even intervals on the inner and outer sides of the ground-inserting piles, greatly enhance the stability and pull-out resistance of the foundation. This allows the wind turbine tower to withstand strong winds and severe weather after installation, ensuring the stable operation of the wind power equipment.

[0016] In the foundation piles of this wind power tower, the bottom area of ​​the tower mounting base is smaller than the top area of ​​the fixed pile, which allows the tower mounting base to more centrally bear the weight of the wind power tower, improving the overall load-bearing capacity. The top edge of the fixed pile has several evenly spaced, ring-shaped ground bolts, providing a more secure connection for the tower mounting base and enhancing the overall stability.

[0017] In the foundation piles of this wind power tower, the ground piles include a metal inner core layer and a protective outer shell set on the surface. The anchor plate passes through the protective outer shell and is connected to the outer wall of the metal inner core layer, making the ground piles more stable in the soil and less susceptible to corrosion or damage. At the same time, the anchor plate enhances the friction between the ground piles and the soil, improving the overall pull-out resistance. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the ground-inserting pile of this utility model;

[0022] 10. Fixed base piles; 11. Ground bolts; 12. Side crossbars; 13. Reinforcing steel cage; 14. Concrete filling layer;

[0023] 20. Generator tower mounting base; 21. External threaded column;

[0024] 30. Ground stake; 31. Metal inner core layer; 32. Protective outer shell; 33. Anchor plate; 34. Anchor column. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Foundation piles for wind turbine towers, such as Figures 1-3 As shown, the system includes a fixed base pile 10 embedded in concrete for installing a wind turbine tower. A turbine tower mounting base 20 is coaxially connected to the top of the fixed base pile 10. Several sets of uniformly spaced, ring-shaped ground-inserting piles 30 are embedded in the concrete ground beneath the fixed base pile 10. Several uniformly spaced, ring-shaped externally threaded columns 21 are installed on the top edge of the turbine tower mounting base 20. The ground-inserting piles 30 are arranged in a crisscross pattern, and several uniformly spaced anchor plates 33 are installed on the outer wall of each set of ground-inserting piles 30. The top and bottom surfaces of each set of anchor plates 33 are equipped with… Several evenly spaced anchor columns 34 are embedded in concrete by fixed base piles 10. The top of the anchor columns is coaxially connected to the power generation tower mounting base 20, which provides a stable installation foundation for the wind power generation tower. Several groups of ground-inserting piles 30 are evenly spaced in a ring on the bottom surface of the fixed base piles 10. The ground-inserting piles 30 are intersected inside and outside and have several evenly spaced anchor plates 33 and anchor columns 34. This greatly enhances the stability and pull-out resistance of the foundation, enabling the wind power generation tower to withstand the effects of strong winds and severe weather after installation, and ensuring the stable operation of the wind power generation equipment.

[0028] Furthermore, the bottom area of ​​the power generation tower mounting base 20 is smaller than the top area of ​​the fixed base pile 10, which allows the power generation tower mounting base 20 to more centrally bear the weight of the wind power generation tower, improving the overall load-bearing capacity. The top edge of the fixed base pile 10 is provided with several evenly spaced and ring-shaped ground bolts 11, providing a more secure connection for the power generation tower mounting base 20 and enhancing the overall stability.

[0029] Specifically, the outer edge of the fixed bottom pile 10 is equipped with several sets of side crossbars 12 that are pre-embedded in concrete and evenly spaced. The ends of the side crossbars 12 are inserted into the outer wall of the fixed bottom pile 10 and are integrally formed, which makes the fixed bottom pile 10 more firmly fixed in the concrete, less prone to displacement or loosening, and further improves the stability of the foundation.

[0030] The fixed base pile 10 and the power generation tower mounting base 20 are integrally formed structures, both including a steel reinforcement frame 13 and a concrete filling layer 14, making the entire structure more robust and durable, able to withstand greater wind force and other external forces, and extending the service life of the wind power generation tower.

[0031] In addition, the ground stake 30 includes a metal inner core layer 31 and a protective outer shell 32 disposed on the surface. The anchoring plate 33 passes through the protective outer shell 32 and is connected to the outer wall of the metal inner core layer 31, making the ground stake 30 more stable in the soil and less susceptible to corrosion or damage. At the same time, the anchoring plate 33 enhances the friction between the ground stake 30 and the soil, improving the overall pull-out resistance.

[0032] The working principle of the foundation piles for this wind turbine tower:

[0033] First, during the construction preparation phase, it is necessary to determine the installation location and level and compact the ground. Next, the fixed bottom pile 10 is placed in the predetermined position, ensuring that it is perpendicular to the ground. This is the core support part of the entire foundation pile fixing.

[0034] Then, the generator tower mounting base 20 is coaxially connected to the top of the fixed base pile 10 to ensure a firm connection; the external threaded column 21 on the top edge of the generator tower mounting base 20 can be pre-installed with connecting components to facilitate the subsequent installation of the wind power generation tower.

[0035] Several sets of evenly spaced, ring-shaped, and intersecting ground-inserting piles 30 are installed on the bottom surface of the fixed bottom pile 10; the ground-inserting piles 30 are slowly inserted into the concrete ground. During the insertion process, it is ensured that the anchoring discs 33 on the outer wall of each set of ground-inserting piles 30 and the anchoring columns 34 on the top and bottom surfaces can be embedded in the concrete. This can greatly enhance the grip of the ground-inserting piles 30 in the concrete and prevent them from loosening.

[0036] Finally, the entire foundation pile structure is inspected to ensure that all components are tightly connected. Then, concrete is poured around the fixed bottom pile 10 and the ground pile 30. After the concrete has completely solidified, the foundation pile can be put into use for installing wind power generation towers.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foundation pile for a wind turbine tower, including a fixed base pile (10) embedded in concrete for installing the wind turbine tower, characterized in that: The top of the fixed bottom pile (10) is coaxially connected to the power generation tower mounting base (20), and the bottom surface of the fixed bottom pile (10) is equipped with several sets of uniformly spaced and ring-shaped ground piles (30) pre-embedded under the concrete ground. The top edge of the power generation tower mounting base (20) is equipped with several uniformly spaced external threaded columns (21) arranged in a ring. The ground-inserting piles (30) are arranged in an inner and outer cross pattern. Each group of ground-inserting piles (30) has several anchor plates (33) arranged evenly and equidistantly on its outer wall. Each group of anchor plates (33) has several anchor columns (34) arranged evenly and equidistantly on its top and bottom surfaces.

2. The foundation piles for the wind power tower according to claim 1, characterized in that: The bottom area of ​​the power generation tower mounting base (20) is smaller than the top area of ​​the fixed bottom pile (10), and the top edge of the fixed bottom pile (10) is provided with a number of uniformly spaced and ring-shaped ground bolts (11).

3. The foundation piles for the wind power generation tower according to claim 1, characterized in that: The outer edge of the fixed bottom pile (10) is equipped with several sets of side crossbars (12) that are embedded in concrete and arranged evenly at equal intervals.

4. The foundation piles for the wind power generation tower according to claim 3, characterized in that: The end of the side crossbar (12) is inserted into the outer wall of the fixed bottom pile (10) and is an integrally formed structure.

5. The foundation piles for the wind power generation tower according to claim 1, characterized in that: The fixed bottom pile (10) and the power generation tower mounting base (20) are integrally formed structures and both include a steel reinforcement frame (13) and a concrete filling layer (14).

6. The foundation piles for the wind power generation tower according to claim 1, characterized in that: The ground stake (30) includes a metal inner core layer (31) and a protective outer shell (32) disposed on the surface.

7. The foundation piles for a wind power tower according to claim 6, characterized in that: The anchor plate (33) passes through the protective shell (32) and is connected to the outer wall of the metal inner core layer (31).