Composite pile

By combining cylinders of different diameters and incorporating a composite pile design with stabilizing plates and drainage holes, the settlement and horizontal displacement problems of photovoltaic system pile foundations under complex geological conditions were solved, thereby improving the stability and strength of the foundation.

CN223853319UActive Publication Date: 2026-01-30HANGZHOU HUADING NEW ENERGY CO LTD
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Patent Information

Application Number
CN202520391945.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-30
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Photovoltaic system pile foundations are difficult to guarantee the stability of settlement and horizontal displacement simultaneously under complex geological conditions, especially in soils with high water content where the foundation strength is insufficient.

Method used

Composite piles are constructed by combining cylinders of different diameters, with stabilizing plates and drainage holes installed. The drainage holes are used to remove moisture from the soil and for secondary grouting to enhance the foundation strength.

Benefits of technology

It improves the resistance to settlement and horizontal displacement of composite piles, enhances the stability and strength of the foundation, and adapts to complex geological conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223853319U_ABST
Patent Text Reader

Abstract

The utility model discloses a composite pile which comprises a first pile body and a second pile body, the first pile body is connected with the second pile body, the first pile body is cylindrical, the second pile body is cylindrical, the central axis of the first pile body coincides with the central axis of the second pile body, the diameter of the second pile body is larger than that of the first pile body, and the diameter of the second pile body is larger than that of the second pile body. A plurality of stabilizing plates are arranged on the first pile body, the stabilizing plates are parallel to one another and are not in contact with one another, and the stabilizing plates are parallel to the central axis of the first pile body. The composite pile has the following beneficial effects that the probability of settlement and horizontal displacement of the whole composite pile is reduced, and the composite pile can be directly driven into a drainage channel through piling equipment.
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Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic industry equipment field especially relates to a composite pile. BACKGROUND

[0002] The pile foundation of the photovoltaic industry is used to install the photovoltaic support, since each photovoltaic support has a main shaft of 100 meters long directly, the straightness requirement of the main shaft is very high, and the twist of the main shaft will affect the rotation of the main shaft and destroy the normal movement of the photovoltaic system, so the pile foundation used by the photovoltaic system needs to consider the displacement in the horizontal direction while considering the settlement. In order to avoid settlement and displacement in the horizontal direction, the patent publication document CN119163000A discloses a pile foundation that can be used for a photovoltaic system, but the photovoltaic project site is complex, with deserts, mudflats, water surfaces and the like, so the piling depth of the foundation needs to be increased to achieve the design strength, and if the water content in the soil is high, the number and piling depth of the foundation need to be increased to solve the foundation strength problem. SUMMARY

[0003] The utility model discloses a composite pile aiming at the above -mentioned problem, the drainage hole can remove the water in the soil, solve the problem that the water content in the soil is high, also can carry out secondary grouting through the drainage hole, increase the strength of the foundation, solve the problem that the soil is loose.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A composite pile, comprising a first pile body and a second pile body, the first pile body and the second pile body are connected, the first pile body is cylindrical, the second pile body is cylindrical, the central axis of the first pile body coincides with the central axis of the second pile body, the diameter of the second pile body is greater than the diameter of the first pile body, a stabilizing plate is arranged on the first pile body, the stabilizing plate has a plurality of pieces, and the pieces of stabilizing plates are in parallel and non-contact state, and the stabilizing plate is parallel to the central axis of the first pile body. Drainage vertical holes are formed in the first pile body and the second pile body, the drainage vertical holes penetrate the first pile body and the second pile body, and the central axes of the first pile body and the second pile body are located in the drainage vertical holes. Circumferential drainage holes are formed in the first pile body and the second pile body, and the circumferential drainage holes are perpendicular to the drainage vertical holes.

[0006] In the composite pile, the first pile body and the second pile body are both cylindrical, and the diameter of the second pile body is larger than that of the first pile body; in use, the first pile body is entirely punched into the drainage ditch, and through the structure of wide at the top and narrow at the bottom, the sinking of the whole pile foundation can be prevented; meanwhile, the stabilizing plates are arranged on the first pile body and are in parallel and non-contact state, so that the stabilizing plates are also punched into the drainage ditch, and the existence of the stabilizing plates can ensure the stability of the whole pile body in the horizontal direction and avoid the horizontal movement, and meanwhile, the existence of the stabilizing plates can increase the frictional resistance of sinking and ensure that the whole composite pile has better anti-settling performance; and since the stabilizing plates are parallel to the central axes of the first pile body, the whole composite pile can be directly punched into the drainage ditch by using the pile driving equipment.

[0007] In the composite pile, the drainage holes can drain water in the soil, solve the problem of high water content in the soil, and also can be used for secondary grouting through the drainage holes to increase the strength of the foundation and solve the problem of loose soil.

[0008] In summary, the composite pile is composed of cylindrical bodies with different diameters, the cylindrical body with wide diameter is located below the drainage ditch, the cylindrical body with narrow diameter is located below the drainage ditch, and the stabilizing plates are arranged on the cylindrical body with narrow diameter, so that the probability of sinking and horizontal displacement of the whole composite pile is reduced, and the whole composite pile can be directly punched into the drainage ditch by using the pile driving equipment.

[0009] Optionally, the stabilizing plates are distributed equidistantly and equiradially around the first pile body.

[0010] Optionally, the stabilizing plates are sheet-shaped stabilizing plates.

[0011] The drainage vertical hole and the circumferential drainage hole are in communication, and the drainage vertical hole and the circumferential drainage hole have two functions, one is drainage, and the other is grouting into the whole composite pile through the drainage vertical hole when needed; the grout can seep through the drainage vertical hole and the circumferential drainage hole to the drainage ditch, and after the grout solidifies, the stability of the whole composite pile is improved.

[0012] Optionally, the stabilizing plates are perpendicular to the first pile body.

[0013] Optionally, the length of the stabilizing plate is equal to the length of the first pile body.

[0014] Optionally, the stabilizing plate abuts against one end of the second pile body.

[0015] The drainage holes can drain water in the soil, solve the problem of high water content in the soil, and also can be used for secondary grouting through the drainage holes to increase the strength of the foundation and solve the problem of loose soil. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings.

[0017] Figure 1 is a structural schematic diagram of a composite pile;

[0018] Figure 2 is Figure 1 is a sectional view of A-A in the above-mentioned composite pile;

[0019] Figure 3 is Figure 1 is a sectional view of B-B in the above-mentioned composite pile;

[0020] Figure 4 is a schematic diagram of a state when the composite pile is fixed on a drainage ditch.

[0021] In the drawings, the reference signs are as follows: 1, first pile body; 2, second pile body; 3, drainage vertical hole; 4, circumferential drainage hole; 5, stabilizing plate; 6, drainage ditch. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0023] In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The technology, method and equipment known to those skilled in the art can not be discussed in detail, but under appropriate circumstances, the technology, method and equipment should be regarded as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0025] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, a composite pile includes a first pile body 1 and a second pile body 2, which are connected. The first pile body 1 is cylindrical, and the second pile body 2 is cylindrical. The central axis of the first pile body 1 coincides with the central axis of the second pile body 2. The diameter of the second pile body 2 is larger than the diameter of the first pile body 1. A stabilizing plate 5 is provided on the first pile body 1. There are several stabilizing plates 5, and each stabilizing plate 5 is parallel and does not contact the others. The stabilizing plates 5 are parallel to the central axis of the first pile body 1.

[0026] In this type of composite pile, both the first pile body 1 and the second pile body 2 are cylindrical, with the diameter of the second pile body 2 being larger than that of the first pile body 1. During use, the first pile body 1 is driven entirely into the drainage ditch, while the second pile body 2 is positioned below the drainage ditch 6. This top-wide, bottom-narrow structure prevents the entire pile foundation from settling. A stabilizing plate 5 is installed on the first pile body 1, positioned parallel and not in contact with the pile. The stabilizing plate 5 is also driven into the drainage ditch. The presence of the stabilizing plate 5 ensures the horizontal stability of the entire pile, preventing horizontal movement. Simultaneously, the stabilizing plate 5 increases the frictional resistance during settling, ensuring the composite pile has better anti-settlement performance. Furthermore, since the stabilizing plate 5 is parallel to the central axis of the first pile body 1, the entire composite pile can be directly driven into the drainage ditch using piling equipment. The state of the composite pile when driven into the drainage ditch is shown in the attached figure. Figure 4 As shown in the image.

[0027] In summary, this type of composite pile is formed by combining cylinders of different diameters. The cylinder with a wider diameter is located below the drainage ditch 6, and the cylinder with a narrower diameter is located below the drainage ditch 6. Furthermore, a stabilizing plate 5 is installed on the cylinder with a narrower diameter, which reduces the probability of settlement and horizontal displacement of the entire composite pile. It can also be directly driven into the drainage ditch using pile driving equipment.

[0028] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the stabilizing plates 5 are distributed at equal intervals and with equal arcs around the first pile body 1.

[0029] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the stabilizing plate 5 is a sheet-like stabilizing plate 5.

[0030] As attached Figure 1 Appendix Figure 2 and appendix Figure 3As shown, drainage vertical holes 3 are provided on the first pile body 1 and the second pile body 2. The drainage vertical holes 3 penetrate the first pile body 1 and the second pile body 2, and the central axis of the first pile body 1 and the second pile body 2 is located inside the drainage vertical holes 3.

[0031] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, circumferential drainage holes 4 are provided on the first pile body 1 and the second pile body 2, and the circumferential drainage holes 4 are perpendicular to the drainage vertical holes 3.

[0032] The vertical drainage hole 3 and the circumferential drainage hole 4 are in a connected state. The functions of the vertical drainage hole 3 and the circumferential drainage hole 4 are twofold: first, to drain water, and second, to allow grout to be poured into the entire composite pile through the vertical drainage hole 3 when needed. The grout can seep into the drainage ditch 6 through the vertical drainage hole 3 and the circumferential drainage hole 4. After the grout solidifies, it improves the stability of the entire composite pile.

[0033] Drainage holes (including vertical drainage holes and circumferential drainage holes) can remove water from the soil, solving the problem of high soil moisture content; they can also be used for secondary grouting to increase the strength of the foundation and solve the problem of loose soil.

[0034] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the stabilizing plate 5 is perpendicular to the first pile body 1.

[0035] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the length of the stabilizing plate 5 is equal to the length of the first pile 1.

[0036] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 Figure 1 Figure 2 Figure 3 As shown, the stabilizing plate 5 abuts against one end of the second pile 2.

[0037] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A composite pile, characterized by, The utility model relates to a pile body, which comprises a first pile body and a second pile body, the first pile body and the second pile body are connected, the first pile body is cylindrical, the second pile body is cylindrical, the central axis of the first pile body is coincident with the central axis of the second pile body, the diameter of the second pile body is larger than the diameter of the first pile body, the first pile body is provided with a stabilizing plate, the stabilizing plate has a plurality of blocks, and each block of the stabilizing plate is in parallel and non-contact state, and the stabilizing plate is parallel to the central axis of the first pile body. A vertical drainage hole is formed in the first pile body and the second pile body, the vertical drainage hole penetrates the first pile body and the second pile body, and the central axis of the first pile body and the second pile body is located in the vertical drainage hole. A circumferential drainage hole is formed in the first pile body and the second pile body, and the circumferential drainage hole is perpendicular to the vertical drainage hole.

2. The composite pile of claim 1, wherein, The stabilizing plate is distributed equidistantly and equiradially around the first pile body.

3. The composite pile of claim 1, wherein, The stabilizing plate is a sheet-shaped stabilizing plate.

4. The composite pile of claim 1, wherein, The stabilizing plate is perpendicular to the first pile body.

5. The composite pile of claim 1, wherein, The length of the stabilizing plate is equal to the length of the first pile body.

6. The composite pile of claim 1, wherein, The stabilizing plate abuts against one end of the second pile body.

Citation Information

Patent Citations

  • Photovoltaic support screw pile foundation structure

    CN119163000A