Corrosion-resistant high-performance concrete pipe pile

Abstract

The utility model relates to the technical field of pipe piles, and discloses a corrosion-resistant high-performance concrete pipe pile which comprises a pipe pile body, the outer wall of the pipe pile body is sleeved with a protective film, the protective film comprises an outer film and an inner film, the outer film is attached to the outer wall of the pipe pile body, the inner film is attached to the inner wall of the pipe pile body, and the outer film is connected with the inner film. One ends of the outer film and the inner film are connected together, the other ends of the outer film and the inner film are open, and a fixing assembly is connected to the position, close to the opening, of the pipe pile body and used for fixing the protective film; the outer film and the inner film are arranged on the outer wall and the inner wall of the pipe pile body respectively to form a protective film structure, so that the protective film structure can surround and cling to the inner wall and the outer wall of the pipe pile body in all directions, erosion of various corrosive media in soil, underground water and marine environment to the pipe pile body is effectively isolated, and the corrosion resistance of the pipe pile body is greatly improved; and the integrity of the tubular pile body structure can be maintained, and the service life is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe piles, in particular to a corrosion-resistant high-performance concrete pipe pile. Background Art

[0002] High-performance concrete pipe piles, also known as prestressed high-strength concrete pipe piles, are an important deep foundation engineering material and technology that integrates the latest achievements of modern concrete science and prestressed technology. This type of pipe pile not only has the characteristics of traditional concrete pipe piles such as strong bearing capacity and convenient construction, but also greatly improves the mechanical properties and durability of the pile body because it uses high-performance concrete and prestressed technology. High-performance concrete pipe piles are widely used in the construction of large-scale infrastructure such as various buildings, bridges, ports and docks, industrial plants, etc., and are especially suitable for soft foundation treatment and occasions with high requirements for seismic fortification. With its excellent cost-effectiveness and environmental benefits, it has gradually replaced the traditional pile foundation form and become a key technical means in modern civil engineering construction.

[0003] General high-performance concrete pipe piles consist of concrete pipes, steel wire cages and metal connecting blocks. The steel wire cages are wrapped in concrete pipes, and the metal connecting blocks are fixedly connected to both ends of the concrete pipes to fix and prestress the steel wire cages, and also facilitate the pouring of concrete pipes.

[0004] The patent with the current publication number CN219992426U discloses a high-strength precast concrete pipe pile, including a keel, the surface of the keel is cast with high-performance concrete, the inner cavity of the high-performance concrete is provided with a riser, the inner cavity of the riser is movably connected to a transmission shaft through a bearing, the surface of the transmission shaft is fixedly connected to an active bevel gear, the surface of the active bevel gear is meshed with a driven bevel gear around, and the surface of the driven bevel gear is fixedly connected to a threaded rod. The above utility model can make the pipe pile have good use strength through the coordinated use of keels, stirrups, vertical bars, high-performance concrete, risers, transmission shafts, active bevel gears, driven bevel gears, threaded rods, threaded pipes, support plates and hand wheels, and at the same time can support its inner wall, so that it still has good support strength under the extrusion of strong external forces, reducing the phenomenon of deformation and collapse, thereby extending the service life of the building strength.

[0005] Although the above device solves the problem that hollow concrete pipe piles will deform and collapse under the extrusion of strong external force, the following problems still exist:

[0006] During the use of existing high-performance concrete pipe piles, since the high-performance concrete pipe piles are in complex environments such as soil, groundwater and marine environment for a long time, their corrosion resistance directly affects the service life and structural safety of the pipe piles. However, the existing high-performance concrete pipe piles still have deficiencies in anti-corrosion design. Although the concrete material itself has certain impermeability and alkali resistance, in harsh environments such as acidic, saline-alkali or containing chloride ions, concrete is easily corroded, and the internal steel bars are more likely to rust, which in turn affects the overall bearing capacity and durability of the pipe piles. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a corrosion-resistant high-performance concrete pipe pile, which improves the corrosion resistance of the high-performance concrete pipe pile.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrosion-resistant high-performance concrete pipe pile, comprising a pipe pile body, wherein the outer wall of the pipe pile body is covered with a protective film, the protective film comprises an outer film and an inner film, the outer film is in contact with the outer wall of the pipe pile body, the inner film is in contact with the inner wall of the pipe pile body, one end of the outer film and the inner film are connected together, and the other end is open, a fixing component is connected to the pipe pile body near the opening, and the fixing component is used to provide a fixing function for the protective film.

[0009] Furthermore, the fixing assembly includes a fixing block, a threaded ring and a threaded cap. The fixing block is fixedly connected to one end of the pipe pile body close to the opening of the protective film. A threaded ring is fixedly connected to one side of the fixing block. The outer wall of the threaded ring is threadedly connected to the threaded cap. One end of the outer membrane and the inner membrane are bent between the fixing block and the threaded cap and fit therewith.

[0010] Furthermore, a clamping block is fixedly connected to one end of the pipe pile body away from the fixing block, the outer wall of the clamping block is in contact with the inner wall of the connection between the outer membrane and the inner membrane, a clamping groove is provided in the middle of the outer wall of the clamping block, a fixing ring is sleeved in the clamping groove, and the inner wall of the fixing ring is in contact with the outer wall of the outer membrane.

[0011] Furthermore, the inner wall and the outer wall of the threaded ring are both slidably connected with a gasket, and the gasket is located between the protective film and the threaded cap.

[0012] Furthermore, an anti-scratch film is provided on the outer wall of the outer film, one end of the anti-scratch film is located between the outer film and the fixing ring, and the other end of the anti-scratch film is located between the gasket and the outer film.

[0013] Furthermore, a plurality of connection grooves are provided in the inner membrane, the connection grooves are oriented in the same direction as the pipe pile body, and a plurality of support rods are fixedly connected in the connection grooves.

[0014] Furthermore, a plurality of snap-in holes are equidistantly formed on the outer wall of the threaded cap.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model forms a protective film structure by respectively arranging an outer film and an inner film on the outer wall and the inner wall of the pipe pile body. It can not only surround and closely adhere to the inner and outer walls of the pipe pile body in all directions, effectively isolating the pipe pile body from erosion by various corrosive media in the soil, groundwater and marine environment, greatly improving its corrosion resistance, but also is conducive to maintaining the integrity of the pipe pile body structure and significantly extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of a split three-dimensional structure of another form of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model as a whole;

[0020] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the protective film of the utility model;

[0021] Figure 5 for Figure 3 An enlarged three-dimensional cross-sectional structural diagram at A above;

[0022] Figure 6 for Figure 3 Schematic diagram of the enlarged three-dimensional cross-sectional structure at point B above.

[0023] In the figure: 1. pipe pile body; 2. protective film; 201. outer film; 202. inner film; 3. fixing block; 4. threaded cap; 5. clamping block; 6. clamping groove; 7. fixing ring; 8. gasket; 9. anti-scratch film; 10. connecting groove; 11. support rod; 12. clamping hole; 13. threaded ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] like Figures 1 to 6As shown, a corrosion-resistant high-performance concrete pipe pile includes a pipe pile body 1, the outer wall of the pipe pile body 1 is provided with a protective film 2, the protective film 2 includes an outer film 201 and an inner film 202, the outer film 201 is in contact with the outer wall of the pipe pile body 1, the inner film 202 is in contact with the inner wall of the pipe pile body 1, one end of the outer film 201 and the inner film 202 are connected together, and the other end is opened, and a fixing component is connected to the position of the pipe pile body 1 near the opening, and the fixing component is used to provide a fixing function for the protective film 2.

[0026] like Figure 1 As shown, the corrosion-resistant high-performance concrete pipe pile in the utility model is similar to the existing pipe pile structure, such as the high-strength precast concrete pipe pile disclosed in the patent with publication number CN219992426U. The main improvement of the utility model is to improve the corrosion resistance of the high-performance concrete pipe pile. Figures 1 to 6 As shown, when a corrosion-resistant high-performance concrete pipe pile in the utility model is in use, an outer film 201 and an inner film 202 are respectively arranged on the outer wall and the inner wall of the pipe pile body 1 to form a protective film 2 structure, which can not only surround and cling to the inner and outer walls of the pipe pile body 1 in all directions, effectively isolate the erosion of the pipe pile body 1 by various corrosive media in the soil, groundwater and marine environment, greatly improve its corrosion resistance, but also help maintain the integrity of the pipe pile body 1 structure, and significantly extend its service life; the protective film 2 can be made of optional high molecular polymer materials such as polyethylene, epoxy resin coating or other corrosion-resistant and weather-resistant materials.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the fixing assembly includes a fixing block 3, a threaded ring 13 and a threaded cap 4. The fixing block 3 is fixedly connected to one end of the pipe pile body 1 close to the opening of the protective film 2. A threaded ring 13 is fixedly connected to one side of the fixing block 3. The outer wall of the threaded ring 13 is threadedly connected to the threaded cap 4. One end of the outer film 201 and the inner film 202 are bent between the fixing block 3 and the threaded cap 4 and fit therewith.

[0028] Specifically, through the design of the fixing component, the fixing block 3, the threaded ring 13 and the threaded cap 4 cooperate with each other, so that the protective film 2 can be conveniently and quickly fixed tightly on the pipe pile body 1, thereby enhancing the stability of the installation of the protective film 2, preventing the protective film 2 from loosening due to environmental changes, and ensuring that the corrosion resistance effect is long-lasting. The fixing component has good structural stability and pressure-bearing capacity, and can effectively resist the influence of multi-directional loads such as soil pressure and groundwater buoyancy.

[0029] like Figures 1 to 5As shown, one end of the pipe pile body 1 away from the fixing block 3 is fixedly connected with a clamping block 5, the outer wall of the clamping block 5 is in contact with the inner wall of the connection between the outer membrane 201 and the inner membrane 202, a clamping groove 6 is provided in the middle of the outer wall of the clamping block 5, a fixing ring 7 is sleeved in the clamping groove 6, and the inner wall of the fixing ring 7 is in contact with the outer wall of the outer membrane 201.

[0030] Specifically, the arrangement of the clamping block 5 and the clamping groove 6, in cooperation with the fixing ring 7, further strengthens the fixation of the protective film 2 at the far end of the pile body 1, prevents the protective film 2 from being damaged when being pulled or impacted, and enhances the overall structural stability.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the inner wall and the outer wall of the threaded ring 13 are both slidably connected with a gasket 8, and the gasket 8 is located between the protective film 2 and the threaded cap 4.

[0032] Specifically, the addition of the gasket 8 can effectively prevent the threaded ring 13 and the threaded cap 4 from directly pressing the protective film 2 to cause damage or deformation, play a buffering and sealing role, and improve the corrosion resistance of the connection part.

[0033] like Figures 1 to 6 As shown, the outer wall of the outer film 201 is provided with an anti-scratch film 9 , one end of the anti-scratch film 9 is located between the outer film 201 and the fixing ring 7 , and the other end is located between the gasket 8 and the outer film 201 .

[0034] Specifically, the anti-scratch film 9 can protect the outer film 201 from external scratches during installation and use, maintain the integrity of the protective film 2, and enhance the protection against external environmental erosion; the anti-scratch film 9 should be made of wear-resistant, scratch-resistant, and corrosion-resistant film materials.

[0035] like Figure 3 and Figure 4 As shown, a plurality of connection grooves 10 are provided in the inner membrane 202 . The connection grooves 10 are oriented in the same direction as the pipe pile body 1 . A plurality of support rods 11 are fixedly connected in the connection grooves 10 .

[0036] Specifically, the support rods 11 can provide guidance for the inner membrane 202 when the staff installs the inner membrane 202 into the pile body 1, ensuring that the inner membrane 202 is accurately moved along the inner wall of the pile body 1 to the other end, which brings convenience to the installation of the inner membrane 202 by the Wing Blade of Light and improves the installation efficiency of the staff; at the same time, the design of multiple support rods 11 allows the staff to fold the inner membrane 202 in half along the connection of the support rods 11, thereby folding the inner membrane 202, which is convenient for the transportation and storage of the inner membrane 202.

[0037] like Figure 1 and Figure 2As shown, the outer wall of the threaded cap 4 is provided with a plurality of snap-in holes 12 at equal intervals.

[0038] Specifically, the design of the snap-fit ​​hole 12 on the threaded cap 4 can be used to cooperate with other auxiliary fixing parts, increase the options of fixing methods during installation, and improve the installation efficiency of the threaded cap 4.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A corrosion-resistant high-performance concrete pipe pile, comprising a pipe pile body (1), characterized in that: The outer wall of the pipe pile body (1) is provided with a protective film (2), the protective film (2) comprising an outer film (201) and an inner film (202), the outer film (201) being in contact with the outer wall of the pipe pile body (1), the inner film (202) being in contact with the inner wall of the pipe pile body (1), one end of the outer film (201) and the inner film (202) being connected together, and the other end being open, a fixing component being connected to a position of the pipe pile body (1) near the opening, the fixing component being used to provide a fixing function for the protective film (2).

2. The corrosion-resistant high-performance concrete pipe pile according to claim 1, characterized in that: The fixing assembly comprises a fixing block (3), a threaded ring (13) and a threaded cap (4); the fixing block (3) is fixedly connected to one end of the pipe pile body (1) close to the opening of the protective film (2); one side of the fixing block (3) is fixedly connected to the threaded ring (13); the outer wall of the threaded ring (13) is threadedly connected to the threaded cap (4); one end of the outer film (201) and the inner film (202) are bent between the fixing block (3) and the threaded cap (4) and fit therewith.

3. The corrosion-resistant high-performance concrete pipe pile according to claim 2, characterized in that: A clamping block (5) is fixedly connected to one end of the pipe pile body (1) away from the fixing block (3); the outer wall of the clamping block (5) is in contact with the inner wall of the connection between the outer membrane (201) and the inner membrane (202); a clamping groove (6) is provided in the middle of the outer wall of the clamping block (5); a fixing ring (7) is sleeved in the clamping groove (6); and the inner wall of the fixing ring (7) is in contact with the outer wall of the outer membrane (201).

4. A corrosion-resistant high-performance concrete pipe pile according to claim 2 or 3, characterized in that: The inner wall and the outer wall of the threaded ring (13) are both slidably connected with a gasket (8), and the gasket (8) is located between the protective film (2) and the threaded cap (4).

5. The corrosion-resistant high-performance concrete pipe pile according to claim 4, characterized in that: The outer wall of the outer film (201) is provided with an anti-scratch film (9), one end of the anti-scratch film (9) is located between the outer film (201) and the fixing ring (7), and the other end is located between the gasket (8) and the outer film (201).

6. A corrosion-resistant high-performance concrete pipe pile according to claim 1, 2, 3 or 5, characterized in that: A plurality of connection grooves (10) are provided in the inner membrane (202), the connection grooves (10) are oriented in the same direction as the pipe pile body (1), and a plurality of support rods (11) are fixedly connected in the connection grooves (10).

7. The corrosion-resistant high-performance concrete pipe pile according to claim 4, characterized in that: A plurality of connection grooves (10) are provided in the inner membrane (202), the connection grooves (10) are oriented in the same direction as the pipe pile body (1), and a plurality of support rods (11) are fixedly connected in the connection grooves (10).

8. A corrosion-resistant high-performance concrete pipe pile according to claim 2, 3, 5 or 7, characterized in that: The outer wall of the threaded cap (4) is provided with a plurality of clamping holes (12) at equal intervals.

9. The corrosion-resistant high-performance concrete pipe pile according to claim 4, characterized in that: The outer wall of the threaded cap (4) is provided with a plurality of clamping holes (12) at equal intervals.

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