A type of large-diameter prestressed pipe pile with bending resistance
By using a split design and internally reinforced large-diameter prestressed pipe piles, the problems of insufficient bending bearing capacity and vibration cracking of existing prestressed concrete pipe piles have been solved, achieving efficient transportation and improved seismic performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUAWEI CONCRETE PROD CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-26
AI Technical Summary
Existing prestressed concrete pipe piles have insufficient flexural bearing capacity in marine foundation treatment, high transportation costs, and are prone to cracking due to vibration and impact. Their simple structure also leads to pile body damage problems.
The prestressed pipe piles with large diameter bending resistance adopt a split design. The pipe pile body is connected by a clamping mechanism. The internal structure is reinforced with steel cylinder and steel bars, and the external structure uses a buffer plate to prevent vibration and impact. They are disassembled for transportation and then assembled on site.
It improves transportation efficiency, enhances the bending resistance of pipe piles, reduces the risk of cracking caused by vibration and impact, and lowers transportation costs.
Smart Images
Figure CN224281255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil engineering technology, specifically to a large-diameter prestressed pipe pile with bending resistance. Background Technology
[0002] Currently, prestressed concrete pipe piles are widely used in marine foundation treatment due to their advantages of high strength, good durability, strong corrosion resistance, and high impermeability. However, their bending bearing capacity is much lower than that of steel pipe piles, their inclined piles have a small inclination rate and cannot withstand large horizontal loads. Moreover, under conditions of a large number of blows, the pile body is prone to cracking and the pile top is prone to damage.
[0003] For example, the prestressed composite large-diameter pipe pile disclosed in the authorization announcement number CN 202247860 U, although it provides a prestressed composite large-diameter pipe pile that can fully improve the ductility, impact toughness and durability of the pipe pile, does not solve the problem that the large size of the existing prestressed pipe pile leads to excessive transportation costs, and the problem that the simple structure of the existing prestressed pipe pile leads to cracking and damage due to vibration and impact. Utility Model Content
[0004] The purpose of this utility model is to provide a large-diameter prestressed pipe pile with bending resistance to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A large-diameter prestressed pipe pile with bending resistance includes a prestressed pipe pile mechanism, wherein the prestressed pipe pile mechanism includes a pipe pile body one and a pipe pile body two, and the pipe pile body two is provided at the bottom end of the pipe pile body one.
[0007] A clamping mechanism is provided at the connection between the first and second pipe pile bodies. The clamping mechanism includes a connecting shaft, clamp one, clamp two, a connecting buffer plate, and a connecting fixing plate. Clamp one is rotatably provided on one side of the connecting shaft, and clamp two is rotatably provided on the other side of the connecting shaft. Connecting buffer plates are fixedly provided on the inner surfaces of clamp one and clamp two respectively, and a connecting fixing plate is fixedly provided on one side of clamp one and clamp two.
[0008] Preferably, the first and second pipe pile bodies each include a cement pipe, which has the advantage of effectively ensuring the stability of the overall pipe pile structure.
[0009] Preferably, a connecting flange one is fixedly provided at the top end of the cement pipe, and a connecting flange two is fixedly provided at the other end of the cement pipe. The advantage is that by providing connecting flanges at both ends of the cement pipe, the first and second pipe pile bodies can be effectively connected and fixed together, and the stability of the connection can be improved.
[0010] Preferably, a reinforcing steel cylinder is fixedly installed inside the cement pipe, and reinforcing steel bars are fixedly installed inside the reinforcing steel cylinder. The advantage is that by installing a reinforcing steel cylinder and reinforcing steel bars inside the cement pipe, the strength of the cement pipe can be effectively increased, the problem of pipe pile cracking caused by vibration and impact can be reduced, and the practicality of the pipe pile can be effectively improved.
[0011] Preferably, the two sides of the connecting fixing plate are fixed by fixing screws and fixing nuts, which has the advantage of further improving the stability when connecting the first pipe pile body and the second pipe pile body together.
[0012] Preferably, the connecting buffer plate includes a reinforcing steel plate, and buffer pads are fixedly provided at both ends of the reinforcing steel plate. The advantage is that, by clamping the connecting buffer plate at the connection between the first and second pipe pile bodies during connection, the problem of damage and cracking between the pipe piles due to vibration and impact can be effectively prevented during use, thus improving the practicality of the pipe pile. Furthermore, the buffer pad is a hard and tough vulcanized rubber made of unsaturated rubber vulcanized with a high dose of sulfur.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This type of large-diameter prestressed pipe pile with bending resistance is transported separately from the pile body 1, pile body 2, and clamping mechanism. Upon arrival at the site, the clamping mechanism connects the pile body 1 and pile body 2 together before use. During use, a connecting buffer plate is inserted at the connection point of the pile body 1 and pile body 2 to effectively prevent damage and cracking of the pipe piles due to vibration and impact.
[0015] 2. This large-diameter prestressed concrete pipe pile with bending resistance addresses the problems of excessive transportation costs and susceptibility to cracking due to vibration and impact caused by the large size and simple structure of existing prestressed concrete pipe piles. The proposed large-diameter prestressed concrete pipe pile is designed to be transported in two parts. Upon arrival at the site, a clamping mechanism connects the two pipe pile bodies, significantly improving transportation efficiency. Reinforcing steel cylinders and reinforcing bars are installed inside both pipe pile bodies to enhance the strength of the concrete pipe and reduce cracking caused by vibration and impact. Furthermore, a connecting buffer plate effectively prevents damage and cracking between the pipe piles due to vibration and impact. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of a disassembly mechanism for the pipe pile body of this utility model;
[0018] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the overall side cross-sectional structure of this utility model.
[0020] In the diagram: 1. Prestressed concrete pipe pile mechanism; 2. Pipe pile body one; 3. Pipe pile body two; 4. Clamping mechanism; 5. Connecting shaft; 6. Clamp one; 7. Clamp two; 8. Connecting buffer plate; 9. Connecting fixing plate; 10. Cement pipe; 11. Connecting flange one; 12. Connecting flange two; 13. Reinforcing steel cylinder; 14. Reinforcing steel bar; 15. Fixing screw; 16. Fixing nut; 17. Reinforcing steel plate; 18. Buffer pad. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution:
[0023] A large-diameter prestressed pipe pile with bending resistance includes a prestressed pipe pile mechanism 1. The prestressed pipe pile mechanism 1 includes a pipe pile body 1 2 and a pipe pile body 2 3. The pipe pile body 2 3 is provided at the bottom end of the pipe pile body 1 2.
[0024] A clamping mechanism 4 is provided at the connection between the first pipe pile body 2 and the second pipe pile body 3. The clamping mechanism 4 includes a connecting shaft 5, a first clamp 6, a second clamp 7, a connecting buffer plate 8, and a connecting fixing plate 9. The first clamp 6 is rotatably provided on one side of the connecting shaft 5, and the second clamp 7 is rotatably provided on the other side of the connecting shaft 5. The connecting buffer plate 8 is fixedly provided on the inner surface of the first clamp 6 and the second clamp 7 respectively. The connecting fixing plate 9 is fixedly provided on one side of the first clamp 6 and the second clamp 7.
[0025] In this embodiment, preferably, the first pipe pile body 2 and the second pipe pile body 3 each include a cement pipe 10, which can effectively ensure the stability of the overall structure of the pipe pile.
[0026] In this embodiment, preferably, a connecting flange 11 is fixedly provided at the top end of the cement pipe 10, and a connecting flange 2 12 is fixedly provided at the other end of the cement pipe 10. By providing connecting flanges at both ends of the cement pipe 10, the pipe pile body 1 2 and the pipe pile body 2 3 can be effectively connected and fixed together, and the stability during connection can be improved.
[0027] In this embodiment, preferably, a reinforcing steel cylinder 13 is fixedly installed inside the cement pipe 10, and a reinforcing steel bar 14 is fixedly installed inside the reinforcing steel cylinder 13. By installing a reinforcing steel cylinder 13 and a reinforcing steel bar 14 inside the cement pipe 10, the strength of the cement pipe 10 can be effectively enhanced, the problem of pipe pile cracking caused by vibration and impact can be reduced, and the practicality of the pipe pile can be effectively improved.
[0028] In this embodiment, preferably, the two sides of the connecting fixing plate 9 are fixed by fixing screws 15 and fixing nuts 16, which further improves the stability when connecting the pipe pile body 1 2 and the pipe pile body 2 3 together.
[0029] In this embodiment, preferably, the connecting buffer plate 8 includes a reinforcing steel plate 17, and buffer pads 18 are fixedly provided at both ends of the reinforcing steel plate 17. By connecting the buffer plate 8 at the connection between the pipe pile body 1 2 and the pipe pile body 2 3 during connection, the problem of damage and cracking between the pipe piles due to vibration and impact can be effectively prevented during use, thus improving the practicality of the pipe pile. Furthermore, the buffer pad 18 is a hard and tough vulcanized rubber made of unsaturated rubber vulcanized with a high dose of sulfur.
[0030] In this embodiment, a large-diameter prestressed concrete pipe pile with bending resistance is transported separately from the pile body 2, pile body 3, and clamping mechanism 4. Upon arrival at the site, the clamping mechanism 4 connects the pile body 2 and pile body 3 together before use. During use, a connecting buffer plate 8 is secured at the connection point between the pile body 2 and pile body 3, effectively preventing damage and cracking caused by vibration and impact. This design addresses the issue of excessive transportation costs associated with existing prestressed concrete pipe piles due to their large size. In this case, the simple structure of the concrete pipe pile makes it highly susceptible to cracking and damage due to vibration and impact. Therefore, a large-diameter prestressed concrete pipe pile with bending resistance is proposed. By splitting the pipe pile into two ends for transportation, the pipe pile body 12 and pipe pile body 23 are connected together by the clamping mechanism 4 after arriving at the site, which can effectively improve the transportation efficiency. Furthermore, the reinforced steel cylinder 13 and reinforced steel bar 14 are set inside the pipe pile body 12 and pipe pile body 23, which can effectively strengthen the strength of the concrete pipe 10 and reduce the problem of pipe pile cracking caused by vibration and impact. In addition, by setting the connecting buffer plate 8, the problem of pipe pile damage and cracking due to vibration and impact can be effectively prevented.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A large-diameter prestressed pipe pile with bending resistance, characterized in that: It includes a prestressed pipe pile mechanism (1), which includes a pipe pile body one (2) and a pipe pile body two (3), and the bottom end of the pipe pile body one (2) is provided with the pipe pile body two (3); A clamping mechanism (4) is provided at the connection between the first (2) and the second (3) of the pipe pile body. The clamping mechanism (4) includes a connecting shaft (5), a clamp one (6), a clamp two (7), a connecting buffer plate (8), and a connecting fixing plate (9). The first clamp (6) is rotatably provided on one side of the connecting shaft (5), and the second clamp (7) is rotatably provided on the other side of the connecting shaft (5). The connecting buffer plate (8) is fixedly provided on the inner surface of the first clamp (6) and the second clamp (7), and the connecting fixing plate (9) is fixedly provided on one side of the first clamp (6) and the second clamp (7).
2. The large-diameter prestressed pipe pile with bending resistance according to claim 1, characterized in that: The first (2) and the second (3) of the pipe pile body respectively include cement pipe (10).
3. The large-diameter prestressed pipe pile with bending resistance according to claim 2, characterized in that: A connecting flange one (11) is fixedly installed at the top end of the cement pipe (10), and a connecting flange two (12) is fixedly installed at the other end of the cement pipe (10).
4. The large-diameter prestressed pipe pile with bending resistance according to claim 2, characterized in that: The cement pipe (10) is fixedly provided with a reinforcing steel cylinder (13), and the reinforcing steel cylinder (13) is fixedly provided with reinforcing steel bars (14).
5. The large-diameter prestressed pipe pile with bending resistance according to claim 1, characterized in that: The connecting fixing plate (9) is fixed on both sides by fixing screws (15) and fixing nuts (16).
6. The large-diameter prestressed pipe pile with bending resistance according to claim 1, characterized in that: The connecting buffer plate (8) includes a reinforcing steel plate (17), and buffer pads (18) are fixedly provided at both ends of the reinforcing steel plate (17).