Novel PHC tubular pile

Abstract

The utility model relates to the technical field of pipe piles for constructional engineering, and provides a novel PHC pipe pile which is of a hollow columnar structure, the two ends of the columnar structure comprise a first splicing block and a second splicing block, and the first splicing block and the second splicing block on the two pipe piles connected with each other are riveted with each other; the first splicing block is of a semi-annular structure, the second splicing block comprises a semi-annular structure and a boss, the boss is used for penetrating into a center hole of another tubular pile, the boss comprises a positioning hole, through holes are formed in the side wall of the first splicing block and the side wall of the second splicing block, and the through holes are communicated with the positioning hole. After the first splicing block and the second splicing block are riveted, the through hole is communicated with the positioning hole, and the through hole and the positioning hole are used for containing concrete or other pouring agents. The pipe pile is convenient to splice, and the splicing efficiency, the splicing stability and the splicing firmness are improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe pile technology for building engineering, and specifically to a new type of PHC pipe pile. Background Technology

[0002] PHC pipe piles, or prestressed high-strength concrete pipe piles, have a standard section length of 10m. They possess high bearing capacity and can be driven into dense sand and strongly weathered layers. Installation is typically achieved through hammering or static pressure driving. They are widely used in water engineering, airport construction, real estate development, and railway construction. During use, accurate alignment between sections is required before welding the joints. Current alignment methods involve setting a connecting structure on the end face of the pipe pile, with threaded holes within this structure. During alignment, workers manually connect the connecting bolts to the threaded holes and then insert them into the countersunk hole on the lower pipe pile end face. For example, Chinese patent application number 202420616818.5 discloses a quick-connect structure for PHC pipe piles, utilizing a rod on the upper pipe pile and a slot on the lower pipe pile for alignment, thereby improving the stability of the two pipe piles after splicing. This docking method requires a high degree of coaxiality between the upper and lower pipe piles. Only when the coaxiality of the two piles is consistent can the insertion rod be accurately inserted into the slot. In addition, it requires a high degree of mechanical operation for hoisting the pipe piles from above, otherwise the docking will be inaccurate. This type of pipe pile structure is time-consuming and labor-intensive to dock, has low splicing efficiency, and has weak splicing stability. Utility Model Content

[0003] This utility model proposes a new type of PHC pipe pile, which solves the technical problems of inconvenient pipe pile splicing, low splicing efficiency and poor stability in the aforementioned background art by optimizing the structure of existing pipe piles.

[0004] The technical solution of this utility model is as follows:

[0005] A novel PHC pipe pile has a hollow columnar structure. The columnar structure includes a first splicing block and a second splicing block at both ends. The first and second splicing blocks are riveted together on two interconnected pipe piles. The first splicing block has a semi-circular structure, and the second splicing block includes a semi-circular structure and a boss. The boss is used to penetrate the central hole of another pipe pile. The boss includes a positioning hole. Both the first and second splicing blocks have through holes on their sidewalls. After the first and second splicing blocks are riveted together, the through holes communicate with the positioning holes. The through holes and positioning holes are used to accommodate concrete or other pouring agents.

[0006] Optionally, a feeding pipe is also included, which is configured to pass through the through hole and the positioning hole and is used to introduce the concrete or the casting agent.

[0007] Optionally, a tree-shaped casting groove is provided on the connection surface between the first splicing block and the second splicing block, and the casting groove is connected to the positioning hole or the through hole.

[0008] Optionally, it also includes a splicing clamp, which is used to assist in the splicing of the pipe piles.

[0009] Optionally, the splicing fixture includes a first positioning plate, a second positioning plate, and a connector: the first positioning plate and the second positioning plate form a circular clamping area, which is used to fit against the outer wall of the pipe pile; the connector passes through the first positioning plate and the second positioning plate in sequence.

[0010] Optionally, a welding plate is also included, which is disposed between the first splicing block and the second splicing block, and at a preset distance from the outer wall of the pipe pile.

[0011] The principle and beneficial effects of this utility model are as follows:

[0012] This utility model provides a novel PHC pipe pile with a first splicing block and a second splicing block at both ends. The first splicing block is a semi-circular structure, and the second splicing block is a semi-circular structure containing a boss. When splicing two pipe piles, the boss is used to penetrate into the central hole of the other pipe pile to align the two pipe piles. It continues to move downwards until the end faces of the two semi-circular structures on the two pipe piles overlap, thus completing the riveting between the two pipe piles. After riveting, the through holes on the first and second splicing blocks and the positioning holes on the boss are aligned. Concrete or other casting agents are then introduced into the through holes and positioning holes to securely connect the first and second splicing blocks. This utility model uses a boss with a larger shaft diameter to connect with the central hole of the pipe pile, reducing the difficulty of connection. Furthermore, by using two semi-circular structures to connect with each other, and by setting through holes and positioning holes in the connection structure for filling with concrete or other casting agents, the two pipe piles are cast and connected after connection, improving the stability and firmness of the connection. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 A schematic diagram of the splicing three-dimensional structure of a novel PHC pipe pile provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-section after splicing in an embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the front structure of the novel PHC pipe pile in this embodiment;

[0017] Figure 4This is a top view of the splicing fixture in this embodiment.

[0018] In the figure: 1. First splicing block; 2. Second splicing block; 3. Boss; 31: Positioning hole; 4. Through hole; 5. Splicing fixture; 51. First positioning plate; 52. Second positioning plate; 6. Welding plate. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0020] PHC pipe piles refer to prestressed high-strength concrete pipe piles, which have high bearing capacity and can be driven into dense sand layers and strongly weathered layers. They are widely used in water conservancy projects, airport construction, real estate construction, and railway construction. During use, the sections need to be accurately aligned before welding the joints. Existing alignment methods involve setting a connecting structure on the end face of the pipe pile, with threaded holes in the connecting structure. During alignment, workers manually connect the connecting bolts to the threaded holes and then insert them into the countersunk hole on the end face of the lower pipe pile. Alternatively, a quick-connect structure for PHC pipe piles disclosed in Chinese Patent Application No. 202420616818.5 utilizes a rod on the upper pipe pile and a slot on the lower pipe pile for alignment, thereby improving the stability of the two pipe piles after splicing. This docking method requires a high degree of coaxiality between the upper and lower pipe piles. Only when the coaxiality of the two piles is consistent can the insertion rod be accurately inserted into the slot. In addition, it requires a high degree of mechanical operation for hoisting the pipe piles from above, otherwise the docking will be inaccurate. This type of pipe pile structure is time-consuming and labor-intensive to dock, has low splicing efficiency, and has weak splicing stability.

[0021] Therefore, this utility model proposes a new type of PHC pipe pile, which solves the technical problems of inconvenient pipe pile splicing, low splicing efficiency and poor stability in the aforementioned background art by optimizing the structure of existing pipe piles. The utility model will be described in detail below with reference to the accompanying drawings.

[0022] This utility model provides a novel PHC pipe pile, which has a hollow columnar structure. The two ends of the columnar structure include a first splicing block 1 and a second splicing block 2. The first splicing block 1 and the second splicing block 2 are riveted together on two interconnected pipe piles. The first splicing block 1 has a semi-circular structure, and the second splicing block 2 includes a semi-circular structure and a boss 3. The boss 3 is used to pass through the central hole of another pipe pile. The boss 3 includes a positioning hole 31. The side walls of the first splicing block 1 and the second splicing block 2 are provided with through holes 4. After the first splicing block 1 and the second splicing block 2 are riveted together, the through holes 4 communicate with the positioning holes 31. The through holes 4 and the positioning holes 31 are used to accommodate concrete or other pouring agents.

[0023] As described above, the novel PHC pipe pile provided by this utility model has a first splicing block 1 and a second splicing block 2 at both ends, wherein the first splicing block 1 is a semi-circular structure and the second splicing block 2 is a semi-circular structure including a boss 3. When splicing two pipe piles, refer to Figure 1 Figure 3 As shown, the boss 3 is used to penetrate into the center hole of another pipe pile to align the upper and lower pipe piles. It continues to move downwards until the end faces of the two semi-circular structures on the two pipe piles overlap, thus completing the riveting between the two pipe piles. After riveting, the through holes 4 on the first splicing block 1 and the second splicing block 2, as well as the positioning hole 31 on the boss 3, are aligned. Concrete or other casting agents are then introduced into the through holes 4 and the positioning hole 31 to securely connect the first splicing block 1 and the second splicing block 2. This invention uses a boss 3 with a larger shaft diameter to connect with the center hole of the pipe pile, reducing the difficulty of connection. Furthermore, by using two semi-circular structures to connect with each other, and by setting through holes 4 and positioning holes 31 in the connection structure for filling with concrete or other casting agents, the two pipe piles are cast and connected after connection, improving the stability and firmness of the connection between the two pipe piles.

[0024] Among them, the hollow pipe piles with different structures at both ends can be made by high-speed centrifugal casting, and are cast into molds according to the structure of the first splicing block 1 and the second splicing block 2 at both ends.

[0025] Reference Figure 2 As shown, the vertical dashed frame represents the through hole 4 on the splicing block, and the dashed frame extending into the central circular boss 3 represents the positioning hole 31 on the boss 3. After the through hole 4 and the positioning hole 31 are aligned with each other, the casting agent is poured into them to make the two pipe piles firmly connected.

[0026] This embodiment also includes a feeding pipe, which is configured to pass through the through hole 4 and the positioning hole 31 and is used to introduce the concrete or the casting agent. To improve the fluidity of the casting agent and prevent it from becoming blocked in the air during pouring, the feeding pipe is inserted into holes on the first splicing block 1 and the second splicing block 2. Alternatively, the feeding pipe can be removed after filling is complete, or, if the material being fed can stably bond with the casting agent, the feeding pipe can remain in place after pouring. This embodiment does not impose specific limitations on this; the choice can be made based on the compatibility of the feeding pipe with the casting agent materials.

[0027] It should be noted that the aforementioned casting agent is related to the material of the pipe pile. Concrete is one such casting agent. In addition, the appropriate casting agent can be selected according to the actual pipe pile material. This embodiment does not impose specific restrictions on this.

[0028] In some embodiments, a tree-shaped casting groove is provided on the connection surface between the first splicing block 1 and the second splicing block 2, and the casting groove communicates with the positioning hole 31 or the through hole 4. This casting groove allows the injected casting agent to flow into the connection surface of the two splicing blocks, thereby increasing the connection strength between the two splicing blocks; wherein, the tree-shaped structure of the casting groove has strong flowability and increases the surface area for the casting agent to disperse on the connection surface, which helps to improve the firmness and stability of the splicing.

[0029] In other embodiments, a splicing clamp 5 is also included, which is used to assist in the splicing of the pipe pile. The splicing clamp 5 includes a first positioning plate 51, a second positioning plate 52, and a connector: the arc edges on the first positioning plate 51 and the second positioning plate 52 approach each other to form a circular clamping area, which is used to fit against the outer wall of the pipe pile; the connector passes through the first positioning plate 51 and the second positioning plate 52 in sequence.

[0030] like Figure 4 As shown, after the two pipe piles are joined and the grout is filled, or before the grout is filled, the splicing clamp 5 applies clamping force to the splicing area of ​​the two pipe piles. This serves two purposes: firstly, it brings the splicing surfaces closer together, reducing the gap between them and further increasing the connection force between the two splicing blocks; secondly, it is used to seal the holes after the grout is filled, or to press the plugs used to seal the holes into the holes, thus playing an auxiliary role in the splicing process. Additionally, the aforementioned connector passes through both ends of the first positioning plate 51 and the second positioning plate 52. One end of the connector is hinged to the second positioning plate 52, and the other end passes through the first positioning plate 51. A driving device, such as a cylinder, pushes the first positioning plate 51 closer to the second positioning plate 52 to clamp the pipe piles. The structure of this connector is not specifically limited in this embodiment.

[0031] In this invention, after the first splicing block 1 and the second splicing block 2 are spliced ​​together, and after the casting is completed, the edges where the first splicing block 1 and the second splicing block 2 meet are welded to form at least two layers of weld. Therefore, this embodiment also includes a welding plate 6, which is disposed between the first splicing block 1 and the second splicing block 2 at a predetermined distance from the outer wall of the pipe pile. The welding plate 6 is used to assist welding, ensuring that the solder completely fills the gap between the first splicing block 1 and the second splicing block 2.

[0032] Finally, this utility model provides a novel PHC pipe pile with a hollow columnar structure. The two ends of the columnar structure include a first splicing block 1 and a second splicing block 2. The first splicing block 1 and the second splicing block 2 are riveted together on two interconnected pipe piles. The first splicing block 1 has a semi-circular structure, and the second splicing block 2 includes a semi-circular structure and a boss 3. The boss 3 is used to insert into the central hole of another pipe pile. The boss 3 includes a positioning hole 31. Both the first splicing block 1 and the second splicing block 2 have through holes 4 on their sidewalls. After the first splicing block 1 and the second splicing block 2 are riveted together, the through holes 4 communicate with the positioning holes 31. The through holes 4 and the positioning holes 31 are used to accommodate concrete or other pouring agents. This utility model facilitates pipe pile splicing, improving splicing efficiency, stability, and firmness.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel PHC pipe pile, having a hollow columnar structure, characterized in that, The columnar structure includes a first splicing block (1) and a second splicing block (2) at both ends. The first splicing block (1) and the second splicing block (2) on the two interconnected pipe piles are riveted together. The first splicing block (1) is a semi-circular structure. The second splicing block (2) includes a semi-circular structure and a boss (3). The boss (3) is used to penetrate into the central hole of another pipe pile. The boss (3) includes a positioning hole (31). The side walls of the first splicing block (1) and the second splicing block (2) are provided with through holes (4). After the first splicing block (1) and the second splicing block (2) are riveted together, the through holes (4) communicate with the positioning holes (31). The through holes (4) and the positioning holes (31) are used to accommodate concrete or other pouring agents.

2. The novel PHC pipe pile according to claim 1, characterized in that, It also includes a feeding pipe, which is configured to pass through the through hole (4) and the positioning hole (31) and is used to introduce the concrete or the casting agent.

3. The novel PHC pipe pile according to claim 2, characterized in that, The first splicing block (1) and the second splicing block (2) are provided with tree-shaped casting grooves, which are connected to the positioning hole (31) or the through hole (4).

4. The novel PHC pipe pile according to claim 2, characterized in that, It also includes a splicing clamp (5), which is used to assist in the splicing of the pipe piles.

5. A novel PHC pipe pile according to claim 4, characterized in that, The splicing clamp (5) includes a first positioning plate (51), a second positioning plate (52), and a connector: the first positioning plate (51) and the second positioning plate (52) form a circular clamping area, which is used to fit against the outer wall of the pipe pile; the connector passes through the first positioning plate (51) and the second positioning plate (52) in sequence.

6. The novel PHC pipe pile according to claim 2, characterized in that, It also includes a welding plate (6), which is disposed between the first splicing block (1) and the second splicing block (2) at a preset distance from the outer wall of the pipe pile.

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