Construction structure used between pile end of PHC prestressed pipe pile and bearing platform

Abstract

The utility model discloses a construction structure between the pile end of PHC prestressed pipe pile and bearing platform, including PHC prestressed pipe pile, bearing platform and groove, said bearing platform is provided at the top of PHC prestressed pipe pile, said groove is provided at the bottom of bearing platform, the top of the inner wall of PHC prestressed pipe pile is fixedly connected with the backing plate, and the backing plate is provided with the groove. The top of the base plate is fixedly connected with a reinforcement cage, the top of the base plate is filled with cement, and the top of the PHC prestressed pipe pile is fixedly connected with a connecting mechanism. The bearing platform is provided with the base plate, the inner wall of the PHC prestressed pipe pile is fixed through the base plate, then the reinforcement cage is fixed to the base plate, the center of the PHC prestressed pipe pile is reinforced, and the problem that when an existing bearing platform is connected with the PHC prestressed pipe pile, steel bar welding is generally adopted for connection; the problem that cracks and splitting are prone to occurring when large vibration occurs on the ground is solved, and the connecting structure has the advantage of being convenient to connect.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed pipes, in particular to a construction structure used between a pile end and a cap of a PHC prestressed pipe pile. Background Art

[0002] The connection between the PHC prestressed pipe pile end and the cap plays a key role in building foundation engineering.

[0003] PHC prestressed pipe piles are high-strength precast concrete piles widely used in various construction projects. The pile tip is where the pile meets the foundation soil, while the pile cap connects the piles and transfers the superstructure loads to the pile foundation. A good connection between the pile tip and the pile cap ensures that the load is effectively transferred from the superstructure to the foundation soil, enhancing the foundation's stability and bearing capacity. Connection methods include core-fill concrete and pile-tip anchoring. The core-fill concrete connection involves placing core concrete and steel reinforcement inside the pile tip to enhance the pile tip's shear resistance and connection to the pile cap. The pile-tip anchoring connection uses anchor bars or anchor bolts to anchor the pile tip to the pile cap.

[0004] The existing foundation and PHC prestressed pipe piles are generally connected by steel bar welding, which is prone to cracks and splits when there is a large vibration on the ground. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a construction structure between the pile end of the PHC prestressed pipe pile and the pedestal, which has the advantage of convenient connection and solves the problem that the existing pedestal and the PHC prestressed pipe pile are generally connected by steel bar welding, which is prone to cracks and splits when there is a large vibration on the ground.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a PHC prestressed pipe pile, a cap and a groove, wherein the cap is arranged at the top of the PHC prestressed pipe pile, the groove is opened at the bottom of the cap, the top of the inner wall of the PHC prestressed pipe pile is fixedly connected to a pad, the top of the pad is fixedly connected to a steel cage, the top of the pad is filled with cement, and the top of the PHC prestressed pipe pile is fixedly connected to a connecting mechanism.

[0007] As a preferred embodiment of the present invention, the connecting mechanism includes a threaded column 1, which is fixedly connected to the four corners of the top of the PHC prestressed pipe pile. A positioning groove is provided on the top of the base, and a screw 1 is provided on the inner wall of the positioning groove. The inner wall of the screw 1 is threadedly connected to the top of the threaded column 1.

[0008] As a preferred embodiment of the present invention, the top of the cement inner wall is fixedly connected with a threaded column 2, and the top of the PHC prestressed pipe pile is movably connected with a fixing seat.

[0009] As a preferred embodiment of the present invention, a second screw is movably connected to the bottom of the inner wall of the fixing seat, and the second screw is threadedly connected to the surface of the second threaded column.

[0010] As a preferred embodiment of the present invention, a cone block is fixedly connected to the inner wall of the fixing seat, and a cone-shaped groove is provided on the top of the inner wall of the groove.

[0011] As a preferred embodiment of the present invention, a graphite block 1 is fixedly connected to the inner wall of the tapered groove.

[0012] As a preferred embodiment of the present invention, a second graphite block is fixedly connected to the top of the cone block.

[0013] As a preferred embodiment of the present invention, a cement mortar cushion layer is fixedly connected to the bottom of the base, and the bottom of the cement mortar cushion layer is filled with a gravel layer.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model provides a pad, fixes the inner wall of the PHC prestressed pipe pile with the pad, and then fixes the steel cage to the pad, so as to reinforce the center of the PHC prestressed pipe pile. This solves the problem that the existing cap and the PHC prestressed pipe pile are generally connected by steel bar welding, which is prone to cracks and splits when there is a large vibration on the ground. It has the advantage of convenient connection.

[0016] 2. The utility model provides a connection mechanism. When placing the pedestal, the threaded column 1 is inserted into the positioning groove, and then the screw 1 is rotated to fix the pedestal, which can make the connection more convenient.

[0017] 3. The utility model provides a threaded column and a fixing seat. When the seat is placed on the top of the PHC prestressed pipe pile, the fixing seat is placed on the top of the PHC prestressed pipe pile and a pair of fixing seats are screwed together for positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1. PHC prestressed pipe pile; 2. Cap; 3. Groove; 4. Pad; 5. Steel cage; 6. Cement; 7. Connection mechanism; 71. Threaded column 1; 72. Positioning groove; 73. Screw 1; 8. Threaded column 2; 9. Fixing seat; 10. Screw 2; 11. Conical block; 12. Graphite block 1; 13. Graphite block 2; 14. Cement mortar cushion layer; 15. Gravel layer; 16. Conical groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 3 As shown, the utility model includes a PHC prestressed pipe pile 1, a cap 2 and a groove 3. The cap 2 is arranged at the top of the PHC prestressed pipe pile 1, and the groove 3 is opened at the bottom of the cap 2. The top of the inner wall of the PHC prestressed pipe pile 1 is fixedly connected with a pad 4, the top of the pad 4 is fixedly connected with a steel cage 5, the top of the pad 4 is filled with cement 6, and the top of the PHC prestressed pipe pile 1 is fixedly connected with a connecting mechanism 7.

[0024] refer to Figure 3 The connecting mechanism 7 includes a threaded column 71, which is fixedly connected to the four corners of the top of the PHC prestressed pipe pile 1. A positioning groove 72 is provided on the top of the base 2. A screw 73 is provided on the inner wall of the positioning groove 72. The inner wall of the screw 73 is threadedly connected to the top of the threaded column 71.

[0025] As a technical optimization solution of the present invention, by setting a connecting mechanism 7, when placing the base 2, the threaded column 71 is inserted into the positioning groove 72, and then the screw 73 is rotated to fix the base 2, which can make the connection more convenient.

[0026] refer to Figure 3 The top of the inner wall of the cement 6 is fixedly connected with a threaded column 8, and the top of the PHC prestressed pipe pile 1 is movably connected with a fixing seat 9.

[0027] As a technical optimization solution of the present invention, by setting a threaded column 8 and a fixing seat 9, the base 2 is placed on the top of the PHC prestressed pipe pile 1, and the fixing seat 9 is placed on the top of the PHC prestressed pipe pile 1, and a pair of fixing seats 9 are threaded at the same time for positioning.

[0028] refer to Figure 3The bottom of the inner wall of the fixing seat 9 is movably connected with a screw 2 10, and the screw 2 10 is threadedly connected to the surface of the threaded column 2 8.

[0029] As a technical optimization solution of the present invention, a second screw 10 is provided and the fixing seat 9 is fixed by rotating the second screw 10 so that the second screw 10 is threadedly connected with the second threaded housing.

[0030] refer to Figure 3 The inner wall of the fixing seat 9 is fixedly connected with a cone block 11, and the top of the inner wall of the groove 3 is provided with a cone groove 16.

[0031] As a technical optimization solution of the present invention, by setting the conical block 11 and the conical groove 16, the protrusion can be inserted into the conical groove 16 when placing the base 2, and the base 2 is positioned by embedding the conical groove 16 and the conical block 11.

[0032] refer to Figure 3 The inner wall of the tapered groove 16 is fixedly connected with a graphite block 12.

[0033] As a technical optimization solution of the present invention, by setting graphite block 12, graphite block 12 and graphite block 2 13, friction can be reduced when vibration occurs, thereby avoiding friction between the PHC prestressed pipe pile 1 and the base 2 due to ground vibration, which may cause damage to the PHC prestressed pipe pile 1 or the base 2.

[0034] refer to Figure 3 The top of the cone block 11 is fixedly connected with a graphite block 2 13.

[0035] As a technical optimization solution of the present invention, by setting the graphite block 2 13, the graphite block 2 13 can produce lubricating powder by contacting the graphite block 2 13 when vibration occurs, thereby reducing the damage caused by friction to the PHC prestressed pipe pile 1 and the base 2, and improving the service life of the base 2 and the PHC prestressed pipe pile 1.

[0036] refer to Figure 3 The bottom of the foundation 2 is fixedly connected with a cement mortar cushion layer 14 , and the bottom of the cement mortar cushion layer 14 is filled with a crushed stone layer 15 .

[0037] As a technical optimization solution of the present invention, by providing a cement mortar cushion layer 14 and a crushed stone layer 15 , the crushed stone layer 15 can support the base 2 , and the cement mortar cushion layer 14 can make the contact surface with the base 2 smoother.

[0038] The working principle and use process of the present invention are as follows: when placing the cap 2, insert the threaded column 71 into the positioning groove 72, and then rotate the screw 73 to fix the cap 2, which can be more convenient when connecting. When the cap 2 is placed on the top of the PHC prestressed pipe pile 1, the fixing seat 9 is placed on the top of the PHC prestressed pipe pile 1, and the fixing seat 9 is positioned by screwing the screw 2 10 so that the screw 2 10 is threadedly connected with the threaded housing 2 to fix the fixing seat 9. When placing the cap 2, the protrusion can be inserted into the tapered groove 16, and the cap 2 is inserted into the tapered groove 16 and the tapered block 11. Positioning is performed, and graphite block 1 12 and graphite block 2 13 can reduce friction when vibration occurs, thereby preventing friction between the PHC prestressed pipe pile 1 and the base 2 due to ground vibration, which may cause damage to the PHC prestressed pipe pile 1 or the base 2. Graphite block 2 13 can produce lubricating powder by contacting with graphite block 2 13 when vibration occurs, thereby reducing friction damage to the PHC prestressed pipe pile 1 and the base 2, and increasing the service life of the base 2 and the PHC prestressed pipe pile 1. The crushed stone layer 15 can support the base 2, and the cement mortar cushion layer 14 can make the contact surface with the base 2 smoother.

[0039] In summary, the construction structure between the end of the PHC prestressed pipe pile and the cap is provided with a pad 4, which is fixed to the inner wall of the PHC prestressed pipe pile 1 by the pad 4 and then the steel cage 5 is fixed to the pad 4, so as to reinforce the center of the PHC prestressed pipe pile 1, thereby solving the problem that the existing cap and the PHC prestressed pipe pile are generally connected by steel bar welding, which is prone to cracks and splits when there is a large vibration on the ground.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction structure between a PHC prestressed pipe pile end and a cap, comprising a PHC prestressed pipe pile (1), a cap (2) and a groove (3), characterized in that: The cap (2) is arranged on the top of the PHC prestressed pipe pile (1), the groove (3) is opened at the bottom of the cap (2), the top of the inner wall of the PHC prestressed pipe pile (1) is fixedly connected to a pad (4), the top of the pad (4) is fixedly connected to a steel cage (5), the top of the pad (4) is filled with cement (6), and the top of the PHC prestressed pipe pile (1) is fixedly connected to a connecting mechanism (7).

2. The construction structure between the PHC prestressed pipe pile end and the cap according to claim 1 is characterized by: The connecting mechanism (7) includes a threaded column (71), which is fixedly connected to the four corners of the top of the PHC prestressed pipe pile (1). A positioning groove (72) is provided on the top of the base (2), and a screw (73) is provided on the inner wall of the positioning groove (72). The inner wall of the screw (73) is threadedly connected to the top of the threaded column (71).

3. The construction structure between the PHC prestressed pipe pile end and the cap according to claim 1 is characterized by: The top of the inner wall of the cement (6) is fixedly connected to a second threaded column (8), and the top of the PHC prestressed pipe pile (1) is movably connected to a fixing seat (9).

4. The construction structure between the PHC prestressed pipe pile end and the cap according to claim 3 is characterized by: The bottom of the inner wall of the fixing seat (9) is movably connected with a screw 2 (10), and the screw 2 (10) is threadedly connected to the surface of the threaded column 2 (8).

5. The construction structure between the PHC prestressed pipe pile end and the cap according to claim 3 is characterized by: A cone block (11) is fixedly connected to the inner wall of the fixing seat (9), and a cone-shaped groove (16) is provided at the top of the inner wall of the groove (3).

6. The construction structure between the PHC prestressed pipe pile end and the cap according to claim 5 is characterized by: A graphite block (12) is fixedly connected to the inner wall of the tapered groove (16).

7. The construction structure between the PHC prestressed pipe pile end and the cap according to claim 5 is characterized by: A second graphite block (13) is fixedly connected to the top of the cone block (11).

8. The construction structure between the PHC prestressed pipe pile end and the cap according to claim 1 is characterized by: A cement mortar cushion layer (14) is fixedly connected to the bottom of the base (2), and a crushed stone layer (15) is filled at the bottom of the cement mortar cushion layer (14).

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