Tubular pile anti-corrosion structure and mounting method thereof

Abstract

The invention relates to the technical field of foundation treatment, in particular to a tubular pile anti-corrosion structure and a mounting method thereof. The pipe pile anti-corrosion structure comprises at least two pipe pile bodies. An end plate assembly is arranged between the ends of at least two adjacent pipe pile bodies, the end plate assembly comprises two end plates, the first ends of the two end plates are arranged in the ends of the pipe pile bodies respectively, and the second ends of the two end plates are exposed out of the corresponding pipe pile bodies. The outer diameter of the second ends of the end plates is smaller than that of the pipe pile body so that a groove which is concave relative to the peripheral face of the pipe pile body can be defined together, the interior of the groove is coated with an anti-corrosion layer, and the anti-corrosion layer covers the abutting position of the two second ends. And the protection piece is arranged on the periphery of the anti-corrosion layer in a surrounding mode. Through the arrangement of the pipe pile bodies, the end plate assemblies and the protection pieces, the groove is defined in the connecting position of the two pipe pile bodies, the anti-corrosion layer can be located in the groove, and the anti-corrosion layer at the connecting position can be prevented from being rubbed and damaged by soil in the pile sinking process.

Description

Technical Field

[0001] This application relates to the technical field of foundation treatment, and particularly to an anti-corrosion structure for pipe piles and its installation method. Background Art

[0002] With the development of foundation treatment technology, prestressed high-strength concrete pipe piles have emerged. Due to their high bearing capacity, mature manufacturing technology, convenient construction, mature construction methods, and fast construction speed, prestressed high-strength concrete pipe piles are widely used in foundation treatment such as housing construction and substation construction, and have developed into an important foundation form for substation buildings and structures. Prestressed high-strength concrete pipe piles are prefabricated components, and multiple pipe piles are often required to be spliced during construction to meet the project requirements.

[0003] In related technologies, steel end plates are provided at both ends of the pipe pile. One end of the end plate is connected to the pipe pile, and the other end is used for pipe pile splicing. The radius of the end plate connected to the pipe pile is the same as the outer diameter of the pipe pile. A groove (notch) about 1 mm is provided at the end of the end plate for pipe pile splicing to facilitate pipe pile splicing. The commonly used splicing method in construction is to use electric welding to circumferentially weld at the notches of the end plates (steel components) at both ends of the pipe pile to connect two pipe piles into one body.

[0004] However, at the end of the existing design of the end plate connected to the pipe pile, its outer diameter is the same as the outer diameter of the pipe pile. After the pipe piles are spliced, the anti-corrosion layer of the end plate is directly exposed. When driving the pile, the anti-corrosion layer of the end plate is in direct contact with the soil body, and the anti-corrosion layer of the end plate is easily damaged due to extrusion and friction by the soil body, failing to achieve the anti-corrosion effect required by the design. Summary of the Invention

[0005] Based on this, in view of the problem of insufficient anti-corrosion of the end plate, it is necessary to provide an anti-corrosion structure for pipe piles.

[0006] An anti-corrosion structure for pipe piles, the anti-corrosion structure for pipe piles includes:

[0007] At least two pipe pile bodies;

[0008] An end plate assembly, one end plate assembly is provided between the ends of at least two adjacent pipe pile bodies. The end plate assembly includes two end plates. The first ends of the two end plates are respectively arranged in the ends of one pipe pile body. The second ends of the two end plates protrude from the corresponding pipe pile bodies and are abutted and connected to each other; the outer diameter of the second end of the end plate is smaller than the outer diameter of the pipe pile body, so that the two end plates and the two pipe pile bodies jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body. An anti-corrosion layer is coated in the groove, and the anti-corrosion layer covers the abutting position of the two second ends; and

[0009] A protective member, the protective member is disposed around the outer periphery of the anti-corrosion layer.

[0010] In one embodiment, the end plate includes a first plate portion and a second plate portion connected to each other, and opposite end portions of the first plate portion and the second plate portion respectively form the first end and the second end;

[0011] The first plate portion is embedded in the corresponding pipe pile body, the second plate portion is exposed outside the corresponding pipe pile body, and the outer diameter of the first plate portion is greater than the outer diameter of the second plate portion.

[0012] In one embodiment, a counterbore is provided at an end of the pipe pile body, and at least part of the structure of the first plate portion is received and positioned in the counterbore.

[0013] In one embodiment, a ring-shaped stepped surface is formed at the junction of the first plate portion and the second plate portion, and the stepped surface is flush with the end face of the corresponding pipe pile body to jointly define the side wall of the groove.

[0014] In one embodiment, the anticorrosion layer is continuously provided around the circumference of the end plate;

[0015] The outer diameter of the anticorrosion layer is smaller than the outer diameter of the pipe pile body.

[0016] In one embodiment, the two second ends of the two end plates in the end plate assembly are connected by welding, and a welding layer is formed outside the abutting position of the two second ends;

[0017] The anticorrosion layer covers the side of the welding layer away from the end plate.

[0018] In one embodiment, the outer diameter of the protective member is smaller than the diameter of the pipe pile body.

[0019] In one embodiment, the two end faces of the protective member along the axial direction of the pipe pile body respectively abut against the opposite end faces of the corresponding two pipe pile bodies.

[0020] In one embodiment, a fixing member is further included, and the fixing member is used to position the protective member outside the anticorrosion layer.

[0021] A method for installing a pipe pile anticorrosion structure is also provided for forming the pipe pile anticorrosion structure as described above, and the method for installing the pipe pile anticorrosion structure includes the following steps:

[0022] Connect the first ends of the two end plates to the ends of a pipe pile body respectively, and expose the second ends of the end plates outside the corresponding pipe pile body, wherein the outer diameter of the second end of the end plate is smaller than the outer diameter of the pipe pile body;

[0023] Arrange the two pipe pile bodies in sequence along their own axial directions, and abut and connect the second ends of the two end plates so that the outer peripheral sides of the two end plates and the two pipe pile bodies jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body;

[0024] Apply an anti-corrosion layer in the groove;

[0025] Arrange a protective member around the periphery of the anti-corrosion layer.

[0026] The pipe pile anti-corrosion structure provided by this application includes: pipe pile bodies, with at least two pipe pile bodies. An end plate assembly, the end plate assembly includes two end plates. The first end of each end plate is arranged at the end of the pipe pile body, and the second end of each end plate exposes the corresponding pipe pile body. The outer diameter of the second end of the end plate is smaller than the outer diameter of the pipe pile body, so that the two end plates and the two pipe pile bodies jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body. An anti-corrosion layer is applied in the groove, and the anti-corrosion layer covers the abutting position of the two second ends. By connecting the second ends of the two end plates, the two pipe pile bodies can be connected together. Compared with the convex setting of the anti-corrosion layer in the prior art, the anti-corrosion layer is arranged in the groove, which can avoid damage to the anti-corrosion layer during the pile driving process of the pipe pile. And there is also a protective member, and the protective member surrounds the outer periphery of the anti-corrosion layer. The protective member can further protect the anti-corrosion layer and prevent the anti-corrosion layer from being damaged. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the pipe pile anti-corrosion structure in an embodiment of this application.

[0028] Figure 2 It is Figure 1 the schematic diagram in the A-A direction in

[0029] Figure 3 It is a schematic diagram of the overall structure of the end plate in an embodiment of this application.

[0030] Description of the Reference Numerals:

[0031] 10. Pipe pile body;

[0032] 20. End plate assembly; 21. End plate; 211. First plate body part; 212. Second plate body part;

[0033] 30. Anti-corrosion layer;

[0034] 40. Protective member;

[0035] 50. Fixing member. Detailed Description of the Embodiment

[0036] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0038] In addition, if terms such as "first" and "second" appear, these terms are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0039] In the present application, unless otherwise clearly defined and limited, if terms such as "install", "connect", "join", "fix", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] In this application, unless otherwise clearly defined and limited, when a first feature is described as being "on" or "under" a second feature or the like, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0042] This application provides a corrosion prevention structure for pipe piles, and the corrosion prevention structure for pipe piles includes:

[0043] At least two pipe pile bodies 10;

[0044] A head plate assembly 20, a head plate assembly 20 is provided between the ends of at least two adjacent pipe pile bodies 10. The head plate assembly 20 includes two head plates 21. The first ends of the two head plates 21 are respectively disposed in the ends of a pipe pile body 10. The second ends of the two head plates 21 are exposed from the corresponding pipe pile bodies 10 and are abutted and connected to each other; the outer diameter of the second end of the head plate 21 is smaller than the outer diameter of the pipe pile body 10, so that the two head plates 21 and the two pipe pile bodies 10 jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body 10. An anti-corrosion layer 30 is coated in the groove, and the anti-corrosion layer 30 covers the abutting position of the two second ends; and

[0045] A protection member 40, and the protection member 40 surrounds the outer periphery of the anti-corrosion layer 30.

[0046] Refer to Figure 1 , Figure 1The figure shows a schematic diagram of the overall structure of the anti-corrosion structure of a pipe pile in an embodiment of the present application. The anti-corrosion structure of the pipe pile provided in an embodiment of the present application includes: a pipe pile body 10, and there are at least two pipe pile bodies 10. An end plate assembly 20, the end plate assembly 20 includes two end plates 21, the end plates 21 are plate-shaped structures, the first end of each end plate 21 is arranged at the end of the pipe pile body 10, the second end of each end plate 21 exposes the corresponding pipe pile body 10, and the outer diameter of the second end of the end plate 21 is smaller than the outer diameter of the pipe pile body 10, so that the two end plates 21 and the two pipe pile bodies 10 jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body 10. An anti-corrosion layer 30 is coated in the groove, and the anti-corrosion layer 30 covers the abutting position of the two second ends. By connecting the second ends of the two end plates 21, the two pipe pile bodies 10 can be connected together. Further, by sequentially connecting the second ends of multiple end plates 21, multiple pipe pile bodies 10 can be sequentially connected. After the two end plates 21 and the two pipe pile bodies 10 jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body 10, the anti-corrosion layer 30 is coated in the groove. Compared with the convex setting of the anti-corrosion layer 30 in the prior art, the anti-corrosion layer 30 is arranged in the groove, which can avoid damage to the anti-corrosion layer 30 during the pile driving process of the pipe pile. And a protective member 40 is also provided, and the protective member 40 surrounds the outer periphery of the anti-corrosion layer 30. The protective member 40 can further protect the anti-corrosion layer 30 and prevent the anti-corrosion layer 30 from being damaged.

[0047] Through the above settings of the pipe pile body 10 and the end plate assembly 20, a groove is defined at the connection of the two pipe pile bodies 10. After the anti-corrosion layer 30 is coated, the anti-corrosion layer 30 will be in the groove, which can avoid the anti-corrosion layer 30 at the connection being damaged by soil friction during the pile driving process. Further, after the anti-corrosion layer 30 is protected by the protective member 40, the anti-corrosion effect required by the design can be achieved.

[0048] Refer to Figure 3, the end plate 21 includes a first plate portion 211 and a second plate portion 212 connected to each other. The end portions of the first plate portion 211 and the second plate portion 212 facing away from each other form a first end and a second end respectively. The first plate portion 211 is embedded in the corresponding pipe pile body 10, and the second plate portion 212 is exposed outside the corresponding pipe pile body 10. The outer diameter of the first plate portion 211 is greater than the outer diameter of the second plate portion 212. In this embodiment, the end plate 21 includes a first plate portion 211 and a second plate portion 212, the first plate portion 211 and the second plate portion 212 are connected to each other, and the end portions of the first plate portion 211 and the second plate portion 212 facing away from each other form a first end and a second end respectively. The first plate portion 211 is used to be embedded in the pipe pile body 10. Since the first plate portion 211 is embedded in the pipe pile body 10, the pipe pile can directly provide a protective layer for the first plate portion 211 during the manufacturing process, thereby providing anti-corrosion protection for the first plate portion 211. The second plate portion 212 is exposed outside the pipe pile body 10, and the outer diameter of the first plate portion 211 is greater than the outer diameter of the second plate portion 212. After the first plate portion 211 is embedded in the pipe pile body 10, the second plate portion 212 will be exposed outside the pipe pile body 10. When it is necessary to connect two pipe pile bodies 10 together, the two second plate portions 212 are connected. Part of the two second plate portions 212 will form a groove, and an anti-corrosion layer 30 is coated on the groove to provide anti-corrosion for the connecting position portion of the second plate portion 212. A protective member 40 is further arranged around the outer periphery of the anti-corrosion layer 30. The protective member 40 is used to protect the anti-corrosion layer 30 to prevent the anti-corrosion layer 30 from being damaged by soil friction during the pile sinking process, and to maintain the anti-corrosion effect of the anti-corrosion layer 30 to the greatest extent.

[0049] Moreover, a counterbore is provided at the end of the pipe pile body 10, and at least part of the structure of the first plate portion 211 is received and positioned in the counterbore. In order to embed the first plate portion 211 in the pipe pile body 10, a counterbore is provided at the end of the pipe pile body 10. The counterbore is opened at one end of the pipe pile body 10, and at least part of the structure of the first plate portion 211 is received in the counterbore, so as to achieve the purpose of embedding the first plate portion 211 in the pipe pile body 10. Specifically, the counterbore can be directly formed during the manufacturing process of the pipe pile body 10, or the counterbore can be formed after the pipe pile body 10 is manufactured. Through the arrangement of the counterbore, at least part of the first plate portion 211 is embedded in the pipe pile body 10, and the pipe pile body 10 can provide protection for the outer wall of the first plate portion 211, that is, the pipe pile body 10 has provided anti-corrosion protection for the first plate portion 211.

[0050] In one of the embodiments, such as Figure 3As shown, a ring-shaped stepped surface is formed at the junction of the first plate body portion 211 and the second plate body portion 212, and the stepped surface is flush with the end surface of the corresponding pipe pile body 10 to jointly define the side wall of the groove. The end plate 21 in this embodiment is a stepped structure, and the first plate body portion 211 and the second plate body portion 212 form a step. Specifically, an annular stepped surface is formed at the junction of the first plate body portion 211 and the second plate body portion 212. Further, the stepped surface is flush with the end surface of the corresponding pipe pile body 10 to jointly define the side wall of the groove. Through the above settings, the side wall of the groove can be a plane, avoiding the uneven situation caused by the stepped surface and the end surface of the pipe pile body 10 not being in the same plane, and preventing adverse situations during processing.

[0051] Moreover, the anti-corrosion layer 30 is continuously arranged around the circumference of the end plate 21; the outer diameter of the anti-corrosion layer 30 is smaller than the outer diameter of the pipe pile body 10. In this embodiment, the connection positions of the two second plate body portions 212 will be continuously arranged around the circumference of the end plate 21. Therefore, it is necessary to continuously arrange the anti-corrosion layer 30 around the circumference of the end plate 21. The outer diameter of the anti-corrosion layer 30 is smaller than the outer diameter of the pipe pile body 10. Specifically, the outer diameter formed by the connection position and the anti-corrosion layer 30 together is smaller than the outer diameter of the pipe pile body 10. Through the above settings, during the pile driving process, the soil body can directly extrude the pipe pile body 10, preventing the anti-corrosion layer 30 at the connection position from being damaged by the extrusion and friction of the soil body during the pile driving process.

[0052] Furthermore, as Figure 2 shown, the two second ends of the two end plates 21 in the end plate assembly 20 are connected by welding, and a welding layer is formed outside the abutting position of the two second ends. The anti-corrosion layer 30 covers the side of the welding layer facing away from the end plate 21. Specifically, in order to connect the two pipe pile bodies 10, the two second ends of the two end plates 21 in the end plate assembly 20 need to be connected by welding. After the welding connection, a welding layer will be formed outside the abutting position of the two second ends, and the welding layer will protrude from the outer surface of the second end of the end plate 21, while the anti-corrosion layer 30 needs to cover the side of the welding layer facing away from the end plate 21, so as to provide anti-corrosion protection for the welding layer.

[0053] Further, the outer diameter of the protective member 40 is smaller than the diameter of the pipe pile body 10. By setting the outer diameter after enclosing the protective member 40 to be smaller than the diameter of the pipe pile body 10, the anti-corrosion layer 30 can be completely arranged in the protective member 40, effectively avoiding the contact between the anti-corrosion layer 30 of the weld seam and the soil body during the pile driving process.

[0054] In addition, the two end faces of the protection member 40 along the axial direction of the pipe pile body 10 respectively abut against the opposite end faces of the corresponding two pipe pile bodies 10. In order to protect the anti-corrosion layer 30 to the greatest extent, a protection member 40 is also provided. The protection member 40 is used to surround the outer periphery of the anti-corrosion layer 30, so as to avoid the soil from rubbing against the anti-corrosion layer 30 during the pile driving process, and achieve the maximum protection of the anti-corrosion layer 30. Moreover, the two end faces of the protection member 40 along the axial direction of the pipe pile body 10 respectively abut against the opposite end faces of the corresponding two pipe pile bodies 10, so that the protection member 40 can completely cover the anti-corrosion layer 30 in the axial direction of the pipe pile body 10, further avoiding the contact between the soil and the anti-corrosion layer 30 and preventing the damage of the anti-corrosion layer 30 caused by the contact between the soil and the anti-corrosion layer 30.

[0055] Moreover, it further includes a fixing member 50. The fixing member 50 is used to position the protection member 40 outside the anti-corrosion layer 30. Specifically, the fixing member 50 can be a rivet to rivet the connection parts of the protection member 40 together. Or, the fixing member 50 can also be a welding point. After the protection member 40 is surrounded into an annular structure, the two ends of the protection member 40 can be connected together by welding.

[0056] The present application also provides an installation method for a pipe pile anti-corrosion structure for forming the above pipe pile anti-corrosion structure. The installation method of the pipe pile anti-corrosion structure includes the following steps:

[0057] Connect the first ends of the two end plates 21 to the ends of a pipe pile body 10 respectively, and expose the second ends of the end plates 21 outside the corresponding pipe pile body 10, wherein the outer diameter of the second end of the end plate 21 is smaller than the outer diameter of the pipe pile body 10;

[0058] Arrange the two pipe pile bodies 10 in sequence along their own axial directions, and abut and connect the second ends of the two end plates 21, so that the outer peripheral sides of the two end plates 21 and the two pipe pile bodies 10 jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body 10;

[0059] Apply the anti-corrosion layer 30 in the groove;

[0060] Surround the protection member 40 around the anti-corrosion layer 30.

[0061] Through the above method, a groove can be provided at the connection of the two pipe pile anti-corrosion structures. Through the setting of the groove, the connection part can be recessed from the outer peripheral surface of the pipe pile body 10, and then the connection weld of the two pipe pile anti-corrosion structures can be recessed from the outer peripheral surface of the pipe pile body 10. Then, applying the anti-corrosion layer 30 in the groove can avoid the friction between the soil and the anti-corrosion layer 30 caused by the protrusion of the anti-corrosion layer 30 during the pile driving process. Moreover, the protection member 40 is surrounded around the anti-corrosion layer 30, further avoiding the friction between the soil and the anti-corrosion layer 30 and playing the maximum protection role for the anti-corrosion layer 30.

[0062] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0063] The above-described embodiments only express several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be understood as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A corrosion prevention structure for pipe piles, characterized in that The anti-corrosion structure of the pipe pile includes: At least two pipe pile bodies (10); An end plate assembly (20), one end plate assembly (20) is provided between the ends of at least two adjacent pipe pile bodies (10). The end plate assembly (20) includes two end plates (21). The first ends of the two end plates (21) are respectively arranged in the ends of one pipe pile body (10). The second ends of the two end plates (21) are exposed outside the corresponding pipe pile body (10) and are abutted and connected to each other. The outer diameter of the second end of the end plate (21) is smaller than the outer diameter of the pipe pile body (10), so that the two end plates (21) and the two pipe pile bodies (10) jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body (10). An anti-corrosion layer (30) is coated in the groove, and the anti-corrosion layer (30) covers the abutting position of the two second ends; and A protective member (40), the protective member (40) is arranged around the outer periphery of the anti-corrosion layer (30).

2. The anti-corrosion structure of the pipe pile according to claim 1, characterized in that The end plate (21) includes a first plate body part (211) and a second plate body part (212) connected to each other. The ends of the first plate body part (211) and the second plate body part (212) facing away from each other respectively form the first end and the second end; The first plate body part (211) is buried in the corresponding pipe pile body (10), and the second plate body part (212) is exposed outside the corresponding pipe pile body (10). The outer diameter of the first plate body part (211) is larger than the outer diameter of the second plate body part (212).

3. The anti-corrosion structure of the pipe pile according to claim 2, wherein A counterbore (11) is provided at the end of the pipe pile body (10), and at least part of the structure of the first plate body part (211) is accommodated and positioned in the counterbore (11).

4. The anti-corrosion structure of the pipe pile according to claim 2, characterized in that, A ring-shaped step surface is formed at the junction position of the first plate body part (211) and the second plate body part (212). The step surface is flush with the end face of the corresponding pipe pile body (10) to jointly define the side wall of the groove.

5. The anti-corrosion structure of a pipe pile according to any one of claims 1-4, characterized in that, The anti-corrosion layer (30) is continuously arranged around the circumference of the end plate (21); The outer diameter of the anti-corrosion layer (30) is smaller than the outer diameter of the pipe pile body (10).

6. The anti-corrosion structure of the pipe pile according to claim 5, characterized in that, The two second ends of the two end plates (21) in the end plate assembly (20) are connected by welding, and a welding layer is formed outside the abutting position of the two second ends; The anti-corrosion layer (30) covers the side of the welding layer facing away from the end plate (21).

7. The anticorrosion structure of the pipe pile according to any one of claims 1-4, characterized in that, The outer diameter of the protective member (40) is smaller than the diameter of the pipe pile body (10).

8. The anti-corrosion structure of the pipe pile according to claim 7, characterized in that, The two end faces of the protective member (40) along the axial direction of the pipe pile body (10) respectively abut against the opposite end faces of the corresponding two pipe pile bodies (10).

9. The anticorrosion structure of the pipe pile according to claim 1, wherein, It further includes a fixing member (50), and the fixing member (50) is used to position the protective member (40) outside the anti-corrosion layer (30).

10. An installation method for the anti-corrosion structure of a pipe pile, characterized in that, For forming the anti-corrosion structure of the pipe pile according to any one of claims 1-9, the installation method of the anti-corrosion structure of the pipe pile includes the following steps: Connect the first ends of two end plates (21) to the ends of a pipe pile body (10) respectively, and expose the second ends of the end plates (21) corresponding to the pipe pile body (10), wherein the outer diameter of the second ends of the end plates (21) is smaller than the outer diameter of the pipe pile body (10); Arrange the two pipe pile bodies (10) in sequence along their own axial directions, and abut and connect the second ends of the two end plates (21), so that the outer peripheral sides of the two end plates (21) and the two pipe pile bodies (10) jointly define a groove recessed relative to the outer peripheral surface of the pipe pile body (10); Apply an anti-corrosion layer (30) in the groove; Surround a protective member (40) around the anti-corrosion layer (30).

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