AU2023200853A1

AU2023200853A1 - Concrete pipe pile

Info

Publication number: AU2023200853A1
Application number: AU2023200853A
Authority: AU
Inventors: Yanhua Chen; Qing REN; Rongxiang Wang; Ming Xu; Fuqiang Zhao
Original assignee: Sungrow Renewables Development Co Ltd
Current assignee: Sungrow Renewables Development Co Ltd
Priority date: 2022-04-07
Filing date: 2023-02-15
Publication date: 2023-10-26
Also published as: CN217419748U; KR20230001976U; JP3241611U

Abstract

A concrete pipe pile is provided according to the present application, which includes a pile body and an antifreeze material; the pile body includes a first supporting section, a second supporting section and a third supporting section which are arranged from bottom to top in a listed sequence and are in communication internally, the first supporting section is configured to be inserted in the soil below a freezing line, an interior of the first supporting section is configured to accommodate the soil below the freezing line, and an interior of the second supporting section is configured to accommodate the soil above the freezing line; and the antifreeze material is configured to be covered on an outer circumference of the second supporting section and to be filled in an interior of the third supporting section. In the technical solution of the present application, the corrosion of rainwater and groundwater on the pipe pile can be reduced by filling the outer circumference of the second supporting section and the interior of the third supporting section with the antifreeze material. The concrete pipe pile according to the present application cannot be affected by the frost heaving force in the cold winter, which protects the safe operation of the photovoltaic power generation project. - 15 - CP0022-AU-0905 10 15 ----------- -- -------- 13, -- -- -- -- -nr M H ------ IISH, ll I91I 1 1=1 FI.¶ -13

Description

CP0022-AU-0905

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Australian Patents Act 1990

ORIGINAL COMPLETE SPECIFICATION STANDARDPATENT

Invention Title Concrete pipe pile

The following statement is a full description of this invention, including the best method of performing it known to me/us:

_ 1 _

FIELD

[0001] The present application relates to the technical field of photovoltaic power generation, and in particular to a concrete pipe pile.

BACKGROUND

[0002] In construction of a photovoltaic power generation project, a large number of concrete pipe piles are required. An interior of each concrete pipe pile is hollow and two ends are not sealed. As shown in FIG. 1, rainwater is easy to enter an upper end of the existing concrete pipe pile; moreover, due to the pressure, after the concrete pipe pile is driven into the ground, an interior, at an end deep into the soil, of the concrete pipe pile is full of soil, so that the groundwater at a lower end is easy to flow into the concrete pipe pile; in cold winter, the concrete pipe pile above a freezing line is easily affected by frost heaving, which causes cracking and corrosion of the concrete pipe pile, thus affecting the photovoltaic power generation project.

SUMMARY

[0003] A concrete pipe pile is provided according to the present application, so as to prevent the concrete pipe pile from cracking or corrosion by frost heaving in cold winter.

[0004] In order to realize the above object, a concrete pipe pile is provided according to the present application, which includes:

a pile body, which includes a first supporting section, a second supporting section and a third supporting section arranged in a listed sequence and in communication internally, the first supporting section is configured to be inserted in soil below a freezing line, an interior of the first supporting section is configured to accommodate soil below the freezing line, and an interior of the second supporting section is configured to accommodate soil above the freezing line; and

an antifreeze material, which is configured to cover on an outer circumference of the second supporting section and to be filled in an interior of the third supporting section.

[0005] In an embodiment, the concrete pipe pile further includes a protective plate which is mounted outside an end, close to the second supporting section, of the third supporting section, - la- and the protective plate is configured to reinforce the antifreeze material covering the outer circumference of the second supporting section.

[0006] In an embodiment, the protective plate includes a first reinforcing plate and a second reinforcing plate, and the first reinforcing plate and the second reinforcing plate are detachably connected and are spliced and sleeved on the third supporting section.

[0007] In an embodiment, the concrete pipe pile further includes a pile plug, the pile plug is arranged at an end, away from the second supporting section, of the third supporting section, and the pile plug is configured to plug the third supporting section.

[0008] In an embodiment, the concrete pipe pile further includes a filling assembly which is configured to fill the outer circumference of the second supporting section with the antifreeze material, and/or, is configured to fill the interior of the third supporting section with the antifreeze material.

[0009] In an embodiment, the filling assembly includes a first filling pipe which is configured to fill the interior of the third supporting section with the antifreeze material;

and/or, the filling assembly includes a second filling pipe which is configured to fill the outer circumference of the second supporting section with the antifreeze material.

[0010] In an embodiment, the filling assembly further includes a flow control device, the flow control device is connected with the first filling pipe to control a filling speed of the first filling pipe, and/or, the flow control device is connected with the second filling pipe to control a filling speed of the second filling pipe.

[0011] In an embodiment, a filling hole is defined in the pile plug, the filling hole is configured to communicate the interior of the third supporting section with an exterior, and one end of the first filling pipe extends into the filling hole.

[0012] In an embodiment, the first filling pipe is connected with the pile plug through a movable joint, and the movable joint is detachably connected with the first filling pipe.

[0013] In an embodiment, the antifreeze material is a waterproof material and/or the antifreeze material is a thermal insulation material.

[0014] In the technical solution of the present application, the corrosion of rainwater and groundwater on the pipe pile is reduced by filling the outer circumference of the second supporting section and the interior of the third supporting section with the antifreeze material. In order to stabilize the pile body in the soil, it is necessary to insert the pile body into the ground at a relatively deep depth. The first supporting section is located in soil below the freezing line, the second supporting section is located in soil above the freezing line and at least part of the interior is filled with soil above the freezing line, soil above the freezing line may freeze, and the frozen soil may then exert frost heaving force on the pile body, the second supporting section may crack or corrode due to the influence of frost heaving of the soil. In addition, since the upper end of the third supporting section is open, rainwater may enter the interior of the third supporting section from the upper end of the third supporting section, water is easy to freeze in cold winter, and the condensed ice may produce frost heaving force on the third supporting section, which causes the third supporting section to crack or corrode. By excavating a foundation pit around the second supporting section and filling an interior of the foundation pit with the antifreeze material, the second supporting section is prevented from cracking by frost heaving; and by filling the interior of the third supporting section with the antifreeze material, the third supporting section is prevented from cracking or corrosion by frost heaving. The concrete pipe pile according to the present application cannot be affected by the frost heaving force in the cold winter, which protects the safe operation of the photovoltaic power generation project.

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For more clearly illustrating the technical solutions in the embodiments of the present application or the conventional technology, drawings referred to for describing the embodiments or the conventional technology will be briefly described hereinafter. Apparently, drawings in the following description are only some examples of the present application, and for the person skilled in the art, other drawings may be obtained based on the provided drawings without any creative efforts.

[0016] FIG. 1 is a schematic structural view of a concrete pipe pile in the conventional technology;

[0017] FIG. 2 is a schematic structural view of the concrete pipe pile according to an embodiment of the present application;

[0018] FIG. 3 is a schematic structural view of a pile plug in FIG. 2; and

[0019] FIG. 4 is a schematic structural view of a protective plate in FIG. 2.

[0020] Reference numerals in the drawings are as follows:

Reference numerals Names Reference numerals Names

100 Concrete pipe pile 10 Pile body

13 Second supporting 1 First supporting section section

15 Third supporting 30 Antifreeze material section

50 Protective plate 51 First reinforcing plate

Second reinforcing 53 70 Pile plug plate

70a Filling hole 91 First filling pipe

93 Second filling pipe 95 valve

97 Movablejoint 200 Foundation pit

S Ground L Freezing line

[0021] The realization of the objects, functional characteristics and advantages of the present application will be further described in conjunction with the embodiments and with reference to the drawings.

DETAILED DESCRIPTION OF EMBODIMENTS

[0022] The technical solutions according to the embodiments of the present application will be described clearly and completely as follows in conjunction with the drawings in the embodiments of the present application. It is apparent that the described embodiments are only a part of the embodiments according to the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those having ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0023] It should be noted that, all directional indicators (such as up, down, left, right, front, back...) in the embodiment of the present application are only used for explaining a relative position relationship and movement situation among components in a certain specific posture (as shown in the attached figure). If the specific posture changes, the directional indicators will change accordingly.

[0024] In addition, if there are descriptions related to "first", "second" and the like in the embodiments of the present application, the "first", "second" and the like are only used for descriptive purposes, and should not be understood as indicating or implying its relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can include at least one of the features explicitly or implicitly. In addition, the meaning of "and/or" appearing in the whole text is that it includes three parallel solutions, taking "A and/or B" as an example, including A solution, B solution, or a solution that both A and B satisfy. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the realization by a person skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0025] A concrete pipe pile 100 is provided according to the present application.

[0026] Referring to FIG. 2, in an embodiment of the present application, the concrete pipe pile 100 includes a pile body 10 and an antifreeze material 30; the pile body 10 is in a cylindrical tubular shape, the pile body 10 includes a first supporting section 11, a second supporting section 13 and a third supporting section 15 which are arranged from bottom to top in a listed sequence and are in communication internally. The first supporting section 11, the second supporting section 13 and the third supporting section 15 are all in the cylindrical tubular shape. In an actual project, the first supporting section 11 is configured to be inserted in soil below a freezing line L, and thefirst supporting section 11 is configured to accommodate soil below the freezing line L, and an interior of the second supporting section 13 is configured to accommodate soil above the freezing line L; and the antifreeze material 30 is configured to cover an outer circumference of the second supporting section 13 and to be filled in an interior of the third supporting section 15.

[0027] The antifreeze material 30 is a waterproof material, and/or, the antifreeze material 30 is a thermal insulation material, the antifreeze material 30 can be one or more of a rubber-plastic sponge thermal insulation material, a polyethylene thermal insulation material or a composite silicate thermal insulation material. The rubber sponge thermal insulation material is a closed-cell elastic material, which has excellent properties of softness, bending resistance, cold resistance, heat resistance, flame retardancy, waterproof, low thermal conductivity, shock absorption, sound absorption, etc., and is a new generation of high-quality cross-century thermal insulation material; the polyethylene thermal insulation material is produced by special process, and its cell has a closed-cell structure, which has the characteristics of heat insulation, moisture retention, dewing prevention, aging resistance, etc., and is a high-performance energy-saving material; the composite silicate thermal insulation material is a new type of lightweight, efficient and high temperature thermal insulation material, which has the advantages of low thermal conductivity, convenient construction, no irritation, no dust pollution, etc..

[0028] The construction steps of the concrete pipe pile 100 are as follows:

Si: determining a pile site at a construction site according to a design drawing;

S2: driving a pile body 10 into soil, so that a first supporting section 11 is inserted below a freezing line L of soil, and a driving depth of the first supporting section 11 into the soil is obtained according to an actual situation of a project and a geological survey data, and a third supporting section 15 is located above the ground S;

S3: excavating a foundation pit 200 around a bottom surface of a pile body 10, in which an excavation depth of the foundation pit 200 is deeper than the freezing line L, and a second supporting section 13 is located in the foundation pit 200; and

S4: filling an interior of the second supporting section 13 with an antifreeze material , and filling the foundation pit 200 with the antifreeze material 30, so that an outer circumference of the second supporting section 13 is covered by the antifreeze material 30.

[0029] The construction sequence of the steps S2 and S3 can be adjusted appropriately. After the pile site is determined, the foundation pit 200 is excavated on the ground S where the pile site and its surroundings are located with the pile site as the axis, and the excavation depth of the foundation pit 200 is deeper than the freezing line L; the pile body 10 is driven into a bottom surface of the bottom of the foundation pit 200, so that the first supporting section 11 is inserted below the foundation pit 200, the second supporting section 13 is located in the foundation pit 200, part of the third supporting section 15 is located in the foundation pit 200, and another part is located on the ground S above the foundation pit 200.

[0030] In the technical solution of the present application, the corrosion of rainwater and groundwater on the pile body 10 is reduced by filling the outer circumference of the second supporting section 13 and the interior of the third supporting section 15 with the antifreeze material 30. In order to stabilize the pile body 10 in the soil, it is necessary to insert the pile body 10 into the ground S at a relatively deep depth. The first supporting section 11 is located in the soil below the freezing line L, the second supporting section 13 is located in the soil above the freezing line L and at least part of the interior is filled with the soil above the freezing line L, the soil above the freezing line L may freeze, and the frozen soil may then exert frost heaving force on the pile body 10, the second supporting section 13 may crack or corrode due to the influence of frost heaving of the soil. In addition, since the upper end of the third supporting section 15 is open, rainwater may enter the interior of the third supporting section 15 from the upper end of the third supporting section 15, water is easy to freeze in cold winter, and the condensed ice may produce frost heaving force on the third supporting section 15, which causes the third supporting section 15 to crack or corrode. By excavating the foundation pit 200 around the second supporting section 13 and filling the interior of the foundation pit 200 with the antifreeze material 30, the second supporting section 13 is prevented from cracking by frost heaving; and by filling the interior of the third supporting section 15 with the antifreeze material 30, the third supporting section 15 is prevented from cracking or corrosion by frost heaving. The concrete pipe pile 100 according to the present application cannot be affected by the frost heaving force in the cold winter, which protects the safe operation of the photovoltaic power generation project.

[0031] Referring to FIG. 4, on the basis of the above embodiments, in an embodiment, the concrete pipe pile 100 further includes a protective plate 50, a shape of the protective plate 50 is similar to a shape of an upper surface and a lower surface of the foundation pit 200, an area of a lower surface of the protective plate 50 is slightly larger than an area of the upper surface of the foundation pit 200, a through hole is defined at the center of the protective plate 50, the through hole extends from the upper surface to the lower surface of the protective plate 50, the pile body 10 penetrates through the through hole, and the protective plate 50 is mounted outside an end, close to the second supporting section 13, of the third supporting section 15, and the protective plate 50 is configured to reinforce the antifreeze material 30 covered on the outer circumference of the second supporting section 13. Specifically, the protective plate 50 is arranged at a lower end of the third supporting section 15, and the protective plate 50 is arranged above the foundation pit 300 and is fixed on the ground S above the foundation pit 200. The protective plate 50 covers on the foundation pit 200, and the protective plate 50 plays a role of reinforcing and compacting the antifreeze material 30 when the antifreeze material 30 is filled into the interior of the foundation pit 200, so that the second supporting section 13 can be tightly covered by the antifreeze material 30, and the second supporting section 13 can be tightly protected, which prevents un-tight covering of the antifreeze material on the second supporting section 13 from causing local frost cracking of the second supporting section 13, or prevents an excessively large gap between the antifreeze materials from causing poor antifreeze effect.

[0032] The foundation pit 200 may be irregular-polyhedral, rectangular, tapered or cylindrical. Preferably, the foundation pit 200 is cylindrical. Compared with the foundation pit 200 of other shapes, the cylindrical foundation pit 200 can ensure the antifreeze effects of the antifreeze material 30 at different heights of the second supporting section 13 to be consistent, which avoids the local insufficient antifreeze of the second supporting section 13, or, avoids the insufficient utilization of an internal space of the foundation pit 200. The rectangular foundation pit 200 and the tapered foundation pit 200 are described in detail herein. Firstly, it is assumed that a minimum thickness of the antifreeze material 30 covered on the outer circumference of the second supporting section 13 is d, then a distance from a side wall of the foundation pit 200 to the second supporting section 13 is not less than d; when the foundation pit 200 is a rectangular foundation pit 200, the distances between the side walls of portions of the foundation pit 200 and the second supporting section 13 cannot be kept consistent at the same height. When the distance between the middle of the side wall of the foundation pit 200 and the second supporting section 13 is the minimum distance and the minimum distance is d, the distance between an edge of the side wall of the foundation pit 200 and the second supporting section 13 must be greater than d, that is, the antifreeze material 30 on the side wall of the foundation pit 200 and close to the edge of the foundation pit 200 has no substantial antifreeze effect; when the foundation pit 200 is tapered, at different heights, the distances from the inner walls of the foundation pit 200 on the same bus to the second supporting section 13 are different, the distance from the inner wall at the upper end of the foundation pit 200 to the second supporting section 13 must be greater than d if the distance from the inner wall at the lower end of the foundation pit 200 to the second supporting section 13 is the minimum distance and the minimum distance is d, and the antifreeze material 30 at the upper end of the foundation pit 200 and close to the side wall of the foundation pit 200 does not have a substantial antifreeze effect. The above two cases cause the waste of the antifreeze material 30, and the excavation of foundation pit 200 with larger volume also causes the waste of manpower and increases the construction time.

[0033] Further, the protective plate 50 includes a first reinforcing plate 51 and a second reinforcing plate 53, a through hole extending from an upper surface to a lower surface of the first reinforcing plate 51 is defined in the first reinforcing plate 51, both the first reinforcing plate 51 and the second reinforcing plate 52 are semi-flat-cylindrical, and the first reinforcing plate 51 and the second reinforcing plate 53 are detachably connected and are spliced and mounted outside a lower end of the third supporting section 15. The first reinforcing plate 51 and the second reinforcing plate 53 cover on the foundation pit 200 and are configured together to reinforce and compact the antifreeze material 30 filled in the foundation pit 200. Since the protective plate 50 is detachably spliced from the first reinforcing plate 51 and the second reinforcing plate 53, it is convenient to disassemble the protective plate 50 to view the state of the antifreeze material 30 filled in the interior of the foundation pit 200, and ensure that the antifreeze effect of the antifreeze material 30 in the interior of the foundation pit 200 is not invalid. The through hole may be defined by the first reinforcing plate 51 and the second reinforcing plate 53, so that the assembly and disassembly between the protective plate 50 and the pile body 10 is more convenient and fast.

[0034] Referring to FIG. 3, on the basis of the above embodiments, in another embodiment, the concrete pipe pile 100 further includes a pile plug 70, the pile plug 70 is arranged at an end, away from the second supporting section 13, of the third supporting section 15, and the pile plug 70 is configured to plug the third supporting section 15. Specifically, the pile plug 70 is arranged at an uppermost end of the third supporting section 15. The pile plug 70 plugs the nozzle at the upper end of the pile body 10 to prevent rainwater from entering the interior of the pile body10 from the nozzle at the upper end of the pile body 10. On one hand, rainwater stored in the third supporting section 15 after entering the interior of the pile body10 may cause the third supporting section 15 to frost heave and crack in cold weather, on the other hand, the rainwater entering the third supporting section 15 may affect the antifreeze performance of the antifreeze material 30, which reduces the antifreeze effect of the antifreeze material 30 in the third supporting section 15. In order to plug the pile plug 70 into the opening at the upper end of the third supporting section 15, the pile plug 70 is tapered. In order to improve the sealing tightness of the pile plug 70, the pile plug 70 is an elastic member, and the pile plug 70 can be made of rubber.

[0035] Referring to FIG. 2, the concrete pipe pile 100 further includes a filling assembly which is configured to fill the outer circumference of the second supporting section 13 with the antifreeze material 30 and fill the interior of the third supporting section 15 with the antifreeze material 30. During construction, the protective plate 50 is covered above the foundation pit 200, and the pile plug 70 is plugged into the opening at the upper end of the third supporting section 15, and then the antifreeze material 30 is filled into the interior of the foundation pit 200 and the interior of the third supporting section 15 through the filling assembly, and the protective plate 50 and the pile plug 70 can both reinforce and compact the antifreeze material 30 during the filling of the antifreeze material 30.

[0036] It can be understood that a filling hole 70a extending from an upper surface to a lower surface of the pile plug 70 is defined at the middle of the pile plug 70, a filling hole 70a extending from an upper surface to a lower surface of the protective plate 50 is also defined in the protective plate 50, and the filling hole 70a can be defined in the first reinforcing plate or the second reinforcing plate; the filling assembly includes a first filling pipe 91 and a second filling pipe 93, an outer diameter of the first filling pipe 91 is consistent with a hole diameter of the filling hole 70a in the pile plug 70, the first filling tube 91 is configured to fill the interior of the third supporting section 15 with the antifreeze material 30, an outer diameter of the second filling tube 93 is consistent with a hole diameter of the filling hole 70a in the protective plate 50, and the second filling pipe 93 is configured to fill the interior of the foundation pit 200 with the antifreeze material 30. A nozzle at an output end of the first filling pipe 91 extends into the filling hole 70a in the middle of the pile plug 70, and the first filling pipe 91 fills the interior of the third supporting section 15 with the antifreeze material 30 through the filling hole 70a in the pile plug 70; a nozzle at an output end of the second filling pipe 93 extends into the filling hole 70a defined in the protective plate 50, and the second filling pipe 93 fills the antifreeze material 30 in the foundation pit 200 through the filling hole a in the protective plate 50.

[0037] Further, the filling assembly further includes a flow control device, the flow control device is connected with the first filling pipe 91 to control a filling speed of the first filling pipe 91, and/or, the flow control device is connected with the second filling pipe 93 to control a filling speed of the second filling pipe 93. The starting and ending time of the filling of the antifreeze material 30 can be controlled by providing the flow control device, and the splashing accident caused by fast filling or the extension of the construction time caused by slow filling can be avoided by controlling the filling speed. The volume of the interior of the foundation pit 200 is inconsistent with the volume of the interior of the third supporting section 15, which leads to the difference in the filling speeds of the antifreeze material 30 filled into the interior of the foundation pit 200 and the interior of the third supporting section respectively. In order to independently adjust the filling speed of the first filling pipe 91 and the second filling pipe 93, in an embodiment, a valve 95 is respectively provided at an input end of the first filling pipe 91 and an input end of the second filling pipe 95 to independently control the opening and closing of the first filling pipe 91 and the second filling pipe 93 and the opening size, so as to respectively control the speed of the first filling pipe 91 and the second filling pipe 93 to fill the antifreeze material 30.

[0038] In order to facilitate the disassembly and mounting of the first filling pipe 91, the first filling pipe 91 is connected with the pile plug 70 through a movable joint 97, the movable joint 97 is detachably connected with the first filling pipe 91; similarly, the second filling pipe 93 can be connected with the protective plate 50 through a movable joint 97, and the movable joint 97 is detachably connected with the second filling pipe 93.

[0039] The above embodiments are only preferred embodiments of the present application, and do not limit the scope of the present application. With the concept of the present application, any equivalent structural transformation made by using the contents of description and drawings of the present application, or direct/indirect implementation in other related technical fields, are included in the protection scope of the present application.

[0040] Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.

[0041] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavor to which this specification relates.

Claims

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:

1. A concrete pipe pile, comprising:

a pile body, which comprises a first supporting section, a second supporting section and a third supporting section arranged in a listed sequence and in communication internally, wherein the first supporting section is configured to be inserted in soil below a freezing line, an interior of the first supporting section is configured to accommodate soil below the freezing line, and an interior of the second supporting section is configured to accommodate soil above the freezing line; and

2. The concrete pipe pile according to claim 1, wherein the concrete pipe pile further comprises a protective plate which is mounted outside an end, close to the second supporting section, of the third supporting section, and the protective plate is configured to reinforce the antifreeze material covering the outer circumference of the second supporting section.

3. The concrete pipe pile according to claim 2, wherein the protective plate comprises a first reinforcing plate and a second reinforcing plate, and the first reinforcing plate and the second reinforcing plate are detachably connected and are spliced and mounted outside the third supporting section.

4. The concrete pipe pile according to claim 1, wherein the concrete pipe pile further comprises a pile plug, the pile plug is arranged at an end, away from the second supporting section, of the third supporting section, and the pile plug is configured to plug the third supporting section.

5. The concrete pipe pile according to claim 4, wherein the concrete pipe pile further comprises a filling assembly which is configured to fill the outer circumference of the second supporting section with the antifreeze material, and/or, is configured to fill the interior of the third supporting section with the antifreeze material.

6. The concrete pipe pile according to claim 5, wherein the filling assembly comprises a first filling pipe which is configured to fill the interior of the third supporting section with the antifreeze material;

and/or, the filling assembly comprises a second filling pipe which is configured to fill the outer circumference of the second supporting section with the antifreeze material.

7. The concrete pipe pile according to claim 6, wherein the filling assembly further comprises a flow control device, the flow control device is connected with the first filling pipe to control a filling speed of the first filling pipe, and/or, the flow control device is connected with the second filling pipe to control a filling speed of the second filling pipe.

8. The concrete pipe pile according to claim 6, wherein a filling hole is defined in the pile plug, the filling hole is configured to communicate the interior of the third supporting section with an exterior, and one end of the first filling pipe extends into thefilling hole.

9. The concrete pipe pile according to claim 8, wherein the first filling pipe is connected with the pile plug through a movable joint, and the movable joint is detachably connected with the first filling pipe.

10. The concrete pipe pile according to any one of claims 1 to 9, wherein the antifreeze material has a waterproof function, and/or, the antifreeze material has a thermal insulation function.