Prestressed concrete prefabricated uplift tubular pile

Abstract

The invention relates to the technical field of prefabricated uplift pipe piles, in particular to a prestressed concrete prefabricated uplift pipe pile which comprises a pipe body and an extension pipe, an end is fixedly mounted at the bottom end of the pipe body, an outer protection assembly is fixedly mounted on the upper side of the end, and the pipe body wraps the surface of the outer protection assembly. A plurality of sliding openings are formed in the surface of the tube body; according to the device, four fixed rods are pressed downwards by using engineering equipment, so that arched surfaces passing through the surfaces of the fixed rods slide in guide openings of guide blocks, the guide blocks are driven to move outwards, the guide blocks drive the corresponding reinforcing ring blocks to move, the multiple reinforcing ring blocks are unfolded, and meanwhile, extension rods are driven to move downwards; the extending rod drives the transverse rod to move, the transverse rod drives the two reinforcing blocks to move under the limiting effect of the storage opening, when the limiting rod is located at the corner position of the guide groove, the limiting rod is completely unfolded, the contact area between the limiting rod and the soil layer is increased, prestress is increased, and stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated anti-pulling pipe piles, in particular to a prefabricated prestressed concrete anti-pulling pipe pile. Background Art

[0002] In the process of engineering construction, prefabricated anti-pullout pipe piles are a kind of pile foundation structure widely used in building foundation engineering. They have the advantages of strong bearing capacity, fast construction speed and wide application range. By inserting multiple prefabricated anti-pullout pipe piles into the foundation as pile foundation structure, the prestress is enhanced and the stability of the foundation is improved. It is a common engineering material.

[0003] In the prior art, prefabricated concrete pull-out resistant pipe piles are usually tubular in shape with a smooth surface and a hollow interior, and the bottom end is tapered. When in use, they are directly driven into the soil of the foundation by a pile driver or a pile press. However, in actual use, in soft soil layers, loose layers or complex geological environments, the smooth surface of the pipe piles results in less contact with the soil layer, which may result in the bearing capacity of the pile foundation failing to meet expectations, resulting in skewness, etc., affecting its normal use. Summary of the invention

[0004] The object of the present invention is to provide a prestressed concrete prefabricated anti-pulling pipe pile to solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is: a prestressed concrete prefabricated anti-pulling pipe pile, comprising a pipe body and an extension pipe, wherein a terminal is fixedly installed at the bottom end of the pipe body, an outer protection component is fixedly installed on the upper side of the terminal, the pipe body is wrapped around the surface of the outer protection component, a plurality of sliding openings are opened on the surface of the pipe body, an anti-pulling component is slidably installed in the sliding openings, a strengthening component is fixedly installed on the inner wall of the pipe body, and the pipe body and the extension pipe are fixedly connected by a connecting component; The anti-pull-out component includes multiple reinforcement ring blocks, and the multiple reinforcement ring blocks are correspondingly slidably installed in multiple sliding openings. Guide blocks are fixedly installed on the inner sides of the multiple reinforcement ring blocks, and guide openings are opened on the upper sides of the multiple guide blocks. Multiple through holes are opened on the upper side of the tube body, and guide units are slidably installed in the through holes. Multiple receiving openings are opened on the surface of the end head, and reinforcement units are fixedly installed in the receiving openings.

[0006] Preferably, the reinforcement unit includes two reinforcement blocks, the two reinforcement blocks are correspondingly fitted in the receiving port, guide grooves are provided on the two reinforcement blocks, two limit rods are fixedly installed in the receiving port, and the two limit rods are correspondingly slidably arranged in the guide grooves.

[0007] Preferably, the guide unit comprises a plurality of fixed rods, the fixed rods are slidably mounted in the through holes, the guide sections of the fixed rods are configured as arched surfaces, and the fixed rods are slidably connected to the guide openings.

[0008] Preferably, an extension rod is fixedly mounted on the bottom end of the fixed rod, a cross rod is fixedly mounted on the bottom end of the extension rod, and both ends of the cross rod are rotatably connected to two reinforcement blocks.

[0009] Preferably, the outer protection assembly includes a plurality of outer reinforcement rods, a plurality of outer reinforcement ribs are fixedly mounted on the surfaces of the plurality of outer reinforcement rods, and the tube body is wrapped around the surfaces of the plurality of outer reinforcement ribs and the outer reinforcement rods.

[0010] Preferably, the reinforcement component includes a plurality of internal reinforcement rods, a plurality of internal reinforcement ribs are fixedly installed on the surface of the plurality of internal reinforcement rods, a plurality of upper connecting rings are fixedly installed on the upper part of the internal reinforcement ribs, a plurality of lower connecting rings are fixedly installed on the lower part of the internal reinforcement ribs, the upper connecting rings and the lower connecting rings are slidably installed with the same fixed rod, the surfaces of the plurality of internal reinforcement rods and the internal reinforcement ribs are wrapped with a reinforcement body, and the reinforcement body is fixedly installed on the inner wall of the tube body.

[0011] Preferably, the connecting assembly includes a plurality of splicing seats, a plurality of mounting holes are provided on the upper side of the tube body, the plurality of splicing seats are fixedly installed in the mounting holes accordingly, a plurality of splicing blocks are fixedly installed at the bottom end of the extension tube, the splicing blocks are adapted to the splicing seats, a plurality of insertion holes are provided on the surface of the tube body, and a mortise block is fixedly installed in each of the plurality of insertion holes.

[0012] Preferably, the connection assembly further comprises a plurality of connection grooves formed at the top end of the tube body, and a plurality of joints are fixedly mounted at the bottom end of the extension tube.

[0013] Preferably, two reinforcement grooves are provided on one side of the reinforcement ring block, and reinforcement heads are fixedly installed on the lower sides of the two reinforcement blocks.

[0014] Preferably, the surfaces of the plurality of fixed rods are provided with limiting openings, and the limiting rods are slidably installed in the plurality of limiting openings.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses engineering equipment to press the four fixed rods downward so that the arched surface passing through the surface thereof slides in the guide opening of the guide block, driving the guide block to move outward, and the guide block drives the corresponding reinforcement ring block to move, so that multiple reinforcement ring blocks are unfolded, and at the same time drives the extension rod to move downward, the extension rod drives the cross bar to move, and the cross bar drives the two reinforcement blocks to move under the limiting action of the storage opening. When the limiting rod is located at the corner position of the guide groove, the two reinforcement blocks are separated from the storage opening. At this time, the cross bar drives the two reinforcement blocks to rotate under the action of the two limiting rods, and the two reinforcement blocks drive the reinforcement heads to rotate, so that the two reinforcement heads rotate 90° relative to each other, so that they are fully unfolded, increase their contact area with the soil layer, increase prestress, and improve stability.

[0016] 2. The present invention provides strength support for the pipe body by means of multiple external reinforcement ribs and external reinforcement rods wrapped in the concrete pipe body, and multiple internal reinforcement ribs and internal reinforcement rods installed inside the pipe body are connected to fixed rods slidably installed inside the pipe body through four upper connecting rings and four lower connecting rings, so that the internal reinforcement body is connected to the reinforcement structure inside the pipe body to form an integral reinforcement structure while ensuring its own strength, thereby further improving the strength and increasing the prestress of the device.

[0017] 3. The extension tube of the present invention is hoisted to the top of the tube body by a crane. At this time, the four joints are aligned with the corresponding connection grooves, the four splicing blocks are aligned with the corresponding splicing seats, the extension tube is slowly moved downward, the joints are inserted into the connection grooves, and the splicing blocks are docked with the splicing seats. After the docking is completed, the corresponding tenon blocks are inserted into the tenon holes formed after the splicing blocks and the splicing seats are docked. There is no need to use tools such as bolts for connection. The tenon connection method is adopted to avoid the shear force caused by the use of bolt connection, which increases the wear resistance of the bolts and shortens their service life, and greatly improves the durability of the connection area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the exploded structure of the connection assembly of the present invention; Figure 3 It is a schematic diagram of the mortise and tenon block and the splicing seat and their related structures in the present invention; Figure 4 It is a schematic structural diagram of the top end of the tube body in the present invention; Figure 5 It is a schematic diagram of the structure of the external protection components and the strengthening components of the present invention; Figure 6 yes Figure 5 A schematic diagram of the structure enlargement of the A region in the middle; Figure 7 yes Figure 5 A schematic diagram of the structure of the middle B region; Figure 8 It is a structural schematic diagram of the anti-pullout component in the present invention; Fig. 9 It is a structural schematic diagram of the reinforcement unit in the present invention.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. end cap; 2. tube body; 3. extension tube; 4. connecting groove; 5. reinforcement body; 6. joint; 7. splicing block; 8. fixed rod; 9. limiting rod; 10. mortise block; 11. splicing seat; 12. external reinforcement rib; 13. external reinforcement rod; 14. sliding mouth; 15. internal reinforcement rib; 16. internal reinforcement rod; 17. limiting mouth; 18. upper connecting ring; 19. lower connecting ring; 20. guide block; 21. reinforcement ring block; 22. reinforcement groove; 23. extension rod; 24. storage mouth; 25. cross bar; 26. reinforcement block; 27. guide groove; 28. reinforcement head; 29. ​​limiting rod; 30. mounting hole; 31. arched surface. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0021] Figure 1-Figure 8 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 8 The present invention is further described.

[0022] like Figure 1-Figure 8 As shown, a prestressed concrete prefabricated pull-out resistant pipe pile includes a pipe body 2 and an extension pipe 3, a terminal 1 is fixedly installed on the bottom end of the pipe body 2, an outer protection component is fixedly installed on the upper side of the terminal 1, the pipe body 2 is wrapped around the surface of the outer protection component, a plurality of sliding openings 14 are opened on the surface of the pipe body 2, an anti-pull-out component is slidably installed in the sliding openings 14, a strengthening component is fixedly installed on the inner wall of the pipe body 2, and the pipe body 2 and the extension pipe 3 are fixedly connected by a connecting component.

[0023] The anti-pull-out component includes multiple reinforcement ring blocks 21, and the multiple reinforcement ring blocks 21 are correspondingly slidably installed in the multiple sliding openings 14. The inner sides of the multiple reinforcement ring blocks 21 are fixedly installed with guide blocks 20, and the upper sides of the multiple guide blocks 20 are provided with guide openings. The upper side of the tube body 2 is provided with multiple through holes, and the guide units are slidably installed in the through holes. The surface of the end 1 is provided with multiple receiving openings 24, and the reinforcement units are fixedly installed in the receiving openings 24.

[0024] By means of the above structure, the end head 1 at the bottom end of the pipe body 2 is tapered, which can facilitate the better insertion of the pipe body 2 into the soil, wherein the pipe body 2 is made of concrete, which wraps the outer protective component inside it to form a stable hollow structure, and the surface of the pipe body 2 is provided with four sliding openings 14 on the same horizontal plane, and the number of the sliding openings 14 can be increased or decreased according to actual conditions, and the anti-pullout component installed in the sliding opening 14 includes four reinforcement ring blocks 21, and the four reinforcement ring blocks 21 correspond to the four sliding openings 14, and the four reinforcement ring blocks 21 are a group of horizontal planes, and the number of groups can be increased or decreased according to actual conditions, and the outer side of the reinforcement ring block 21 is arc-shaped, and a rectangular guide block 20 is fixedly installed on the inner side of each reinforcement ring block 21, and the guide block 20 is slidably installed in the guide opening, and a guide opening is opened on the upper side of each guide block 20 to facilitate its guiding movement, and at the same time, four receiving openings 24 with equal angular spacing are opened on the surface of the end head 1 for installing the processing unit.

[0025] Furthermore, the reinforcement unit includes two reinforcement blocks 26, which are correspondingly fitted in the storage opening 24. Guide grooves 27 are provided on the two reinforcement blocks 26. Two limit rods 29 are fixedly installed in the storage opening 24, and the two limit rods 29 are correspondingly slidably set in the guide grooves 27.

[0026] By means of the above structure, the same reinforcement units are fixedly installed in the four storage ports 24, and each reinforcement unit includes two identical reinforcement blocks 26. The guide grooves 27 on the surfaces of the two reinforcement blocks 26 are axially symmetrically arranged, and the guide grooves 27 are composed of a straight groove and an arc groove, wherein the arc groove is located on the upper side of the straight groove, and each guide groove 27 corresponds to a limit rod 29, and the initial position of the limit rod 29 is located at the bottom of the straight groove in the guide groove 27.

[0027] Furthermore, the guiding unit includes a plurality of fixed rods 8, which are slidably installed in the through holes, and the guiding sections of the fixed rods 8 are configured as arched surfaces 31, and the fixed rods 8 are slidably connected to the guiding openings.

[0028] With the above structure, four fixed rods 8 are installed in a ring with the axis of the tube body 2 as the center. The arched surface 31 on the surface of the fixed rod 8 is arched toward the outside of the tube body 2, and the horizontal cross-sectional area of ​​the arched surface 31 needs to be smaller than the horizontal cross-sectional area of ​​the guide port of the guide block 20, which can provide driving space for the guide block 20. When the fixed rod 8 moves downward, the arched surface 31 can squeeze the inner wall of the guide port close to the outside of the tube body 2, thereby driving the guide block 20 to unfold.

[0029] Furthermore, an extension rod 23 is fixedly installed at the bottom end of the fixed rod 8 , a cross rod 25 is fixedly installed at the bottom end of the extension rod 23 , and both ends of the cross rod 25 are rotatably connected to two reinforcement blocks 26 .

[0030] By means of the above structure, an extension rod 23 is installed at the bottom end of each fixed rod 8, and a cross bar 25 is installed at the bottom end of each extension rod 23. The two reinforcement blocks 26 of the reinforcement unit can be driven by the cross bar 25. The fixed rod 8 drives the extension rod 23 to move downward, and the extension rod 23 drives the cross bar 25 to move. The cross bar 25 drives the two reinforcement blocks 26 to move downward first under the limiting action of the storage port 24, and as the extension rod 23 continues to move downward, the reinforcement blocks 26 are driven downward continuously. When the limiting rod 29 is located at the corner position of the guide groove 27, the two reinforcement blocks 26 are separated from the storage port 24. At this time, the cross bar 25 drives the two reinforcement blocks 26 to rotate under the action of the two limiting rods 29, and the two reinforcement blocks 26 drive the reinforcement heads 28 to rotate, so that the two reinforcement heads 28 rotate relative to each other by 90° to make them fully unfolded.

[0031] Furthermore, the outer protection assembly includes a plurality of outer reinforcing rods 13 , on the surfaces of which a plurality of outer reinforcing ribs 12 are fixedly mounted, and the tube body 2 is wrapped around the surfaces of the plurality of outer reinforcing ribs 12 and the outer reinforcing rods 13 .

[0032] With the above structure, a plurality of outer reinforcing rods 13 are arranged at intervals around the axis of the tube body 2 . The outer reinforcing ribs 12 are annular and are installed on the surface of the outer reinforcing rods 13 to form a stable cylindrical structure with the outer reinforcing rods 13 .

[0033] Furthermore, the reinforcement component includes a plurality of internal reinforcement rods 16, a plurality of internal reinforcement ribs 15 are fixedly installed on the surface of the plurality of internal reinforcement rods 16, a plurality of upper connecting rings 18 are fixedly installed on the upper part of the internal reinforcement ribs 15, a plurality of lower connecting rings 19 are fixedly installed on the lower part of the internal reinforcement ribs 15, the upper connecting rings 18 and the lower connecting rings 19 are slidably installed with the same fixed rod 8, the surfaces of the plurality of internal reinforcement rods 16 and the internal reinforcement ribs 15 are wrapped with a reinforcement body 5, and the reinforcement body 5 is fixedly installed on the inner wall of the tube body 2.

[0034] By means of the above structure, the structure of the inner reinforcing rod 16 and the inner reinforcing rib 15 is the same as the structure of the outer reinforcing rod 13 and the outer reinforcing rib 12, but the radius of the inner reinforcing rib 15 is smaller than the radius of the outer reinforcing rib 12, so that the inner reinforcing rib 15 is aligned with the inner wall of the outer reinforcing rib 12, and the reinforcing body 5 wrapped on its surface is concrete. The inner reinforcing rib 15 located on the uppermost side is equipped with four upper connecting rings 18 at equal angular intervals, and the inner wall of the upper connecting ring 18 is rectangular and matched with the fixed rod 8. The inner reinforcing rib 15 located on the lowermost side is equipped with four lower connecting rings 19 at equal angular intervals, and its structure is the same as the upper connecting ring 18. The upper connecting ring 18 and the lower connecting ring 19 are used to connect the reinforcing structure to the fixed rod 8 inside the pipe body 2, thereby connecting the overall structure of the pipe body 2, so that the internal reinforcing body 5 is connected to the reinforcing structure inside the pipe body 2 while ensuring its own strength to form an integral reinforcing structure, thereby further improving the strength and increasing the prestress of the device.

[0035] Furthermore, the connecting assembly includes a plurality of splicing seats 11, a plurality of mounting holes 30 are provided on the upper side of the tube body 2, a plurality of splicing seats 11 are correspondingly fixedly installed in the mounting holes 30, a plurality of splicing blocks 7 are fixedly installed at the bottom end of the extension tube 3, the splicing blocks 7 are adapted to the splicing seats 11, a plurality of sockets are provided on the surface of the tube body 2, and a mortise block 10 is fixedly installed in each of the plurality of sockets.

[0036] By means of the above structure, four mounting holes 30 are provided at equal angular intervals on the upper side of the tube body 2, and a splicing seat 11 is installed in each mounting hole 30, and each splicing seat 11 corresponds to an identical splicing block 7. When the splicing block 7 is inserted into the splicing seat 11, a cylinder is formed, and a mortise and tenon interface is formed in the central area. By inserting the mortise block 10 into the mortise interface, a mortise and tenon structure is formed between the splicing block 7 and the splicing seat 11. The mortise and tenon method can avoid the shear force generated by the bolts to damage the bolts and reduce their service life, thereby greatly improving the durability of the connection area. It should be noted that the extension tube 3 connected by the connecting assembly also has the same structure as the external protective assembly. The extension tube 3 is only used to increase the height above the tube body 2 after being driven into a predetermined depth to achieve the effect of raising the foundation, and it cannot be driven into the soil layer together with the tube body 2.

[0037] Furthermore, the connection assembly also includes a plurality of connection grooves 4 formed at the top end of the tube body 2 , and a plurality of connectors 6 are fixedly mounted at the bottom end of the extension tube 3 .

[0038] With the above structure, a connection groove 4 is opened between the two mounting holes 30 , and a total of four connection grooves 4 are provided to match the four joints 6 at the bottom end of the extension tube 3 .

[0039] Furthermore, two reinforcement grooves 22 are provided on one side of the reinforcement ring block 21 , and reinforcement heads 28 are fixedly mounted on the lower sides of the two reinforcement blocks 26 .

[0040] With the above structure, one side of the reinforcement head 28 is an inclined arc surface, which is convenient for fitting with the end head 1 to prevent resistance when it is driven into the soil layer. The reinforcement head 28 can extend the reinforcement block 26 to increase its contact area with the soil layer. The same effect is achieved for the reinforcement groove 22.

[0041] Furthermore, the surfaces of the plurality of fixed rods 8 are provided with limit openings 17 , and the limit rods 9 are slidably installed in the plurality of limit openings 17 .

[0042] With the above structure, a limiting opening 17 is provided at the upper side of the fixed rod 8 , and the limiting opening 17 can prevent the fixed rod 8 from being affected by gravity and automatically displacing during transportation through the limiting rod 9 .

[0043] Working principle: When the device is used, it is first transported to the area where construction is required, and then the device is hoisted on the crane with the end 1 facing downward, and the pipe body 2 is driven into the soil layer of the foundation using the crane; After being driven to a predetermined depth, the limiting rod 9 in the limiting opening 17 is removed, and the four fixed rods 8 are pressed downward by engineering equipment. When the fixed rod 8 is pressed downward, the arched surface 31 on its surface slides in the guide opening of the guide block 20, driving the guide block 20 to move outward, and the guide block 20 drives the corresponding reinforcement ring block 21 to move, so that the multiple reinforcement ring blocks 21 are unfolded, and at the same time, the fixed rod 8 drives the extension rod 23 to move downward, the extension rod 23 drives the cross bar 25 to move, and the cross bar 25 drives the two reinforcement blocks 26 to move in the receiving opening 24. The two reinforcement blocks 26 are first moved downward under the limiting action of the extension rod 23, and the reinforcement block 26 is driven downward continuously as the extension rod 23 continues to move downward. When the limiting rod 29 is located at the corner position of the guide groove 27, the two reinforcement blocks 26 are separated from the receiving opening 24. At this time, the cross bar 25 drives the two reinforcement blocks 26 to rotate under the action of the two limiting rods 29. The two reinforcement blocks 26 drive the reinforcement heads 28 to rotate, so that the two reinforcement heads 28 rotate 90° relative to each other, so that they are fully deployed, increase their contact area with the soil layer, increase prestress, and improve stability. When the predetermined depth is reached but an extension pipe 3 is still needed to be added on top to raise the foundation, the extension pipe 3 is hoisted to the top of the pipe body 2 by a crane. At this time, the four joints 6 are aligned with the corresponding connection grooves 4, and the four splicing blocks 7 are aligned with the corresponding splicing seats 11. The extension pipe 3 is slowly moved downward, the joints 6 are inserted into the connection grooves 4, and the splicing blocks 7 are docked with the splicing seats 11. After the docking is completed, the corresponding tenon block 10 is inserted into the tenon hole formed after the splicing block 7 and the splicing seat 11 are docked, and it is compacted by a pile hammer to complete the docking installation of the extension pipe 3; After the installation is completed, concrete slurry is poured into the inner walls of the pipe body 2 and the extension pipe 3 to enhance the strength of the device. At the same time, when in use, the multiple external reinforcement ribs 12 and external reinforcement rods 13 wrapped in the concrete pipe body 2 provide strength support for the pipe body 2. The multiple internal reinforcement ribs 15 and internal reinforcement rods 16 installed inside the pipe body 2 are connected to the fixed rod 8 slidably installed inside the pipe body 2 through four upper connecting rings 18 and four lower connecting rods, so that the internal reinforcement body 5 is connected to the reinforcement structure inside the pipe body 2 to form an integral reinforcement structure while ensuring its own strength, thereby further improving the strength and increasing the prestress of the device.

[0044] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A prestressed concrete prefabricated anti-pulling pipe pile, comprising a pipe body (2) and an extension pipe (3), characterized in that: The bottom end of the tube body (2) is fixedly mounted with an end cap (1), the upper side of the end cap (1) is fixedly mounted with an outer protective component, the tube body (2) is wrapped around the surface of the outer protective component, the surface of the tube body (2) is provided with a plurality of sliding openings (14), an anti-pull-out component is slidably mounted in the sliding openings (14), a strengthening component is fixedly mounted on the inner wall of the tube body (2), and the tube body (2) and the extension tube (3) are fixedly connected via a connecting component; The anti-pullout component comprises a plurality of reinforcement ring blocks (21), wherein the plurality of reinforcement ring blocks (21) are correspondingly slidably mounted in a plurality of sliding openings (14), guide blocks (20) are fixedly mounted on the inner sides of the plurality of reinforcement ring blocks (21), guide openings are provided on the upper sides of the plurality of guide blocks (20), a plurality of through holes are provided on the upper side of the tube body (2), guide units are slidably mounted in the through holes, a plurality of receiving openings (24) are provided on the surface of the end head (1), and a reinforcement unit is fixedly mounted in the receiving opening (24).

2. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 1, characterized in that: The reinforcement unit comprises two reinforcement blocks (26), the two reinforcement blocks (26) are correspondingly fitted in the receiving opening (24), the two reinforcement blocks (26) are each provided with a guide groove (27), two limit rods (29) are fixedly installed in the receiving opening (24), and the two limit rods (29) are correspondingly slidably arranged in the guide grooves (27).

3. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 2, characterized in that: The guide unit comprises a plurality of fixed rods (8), the fixed rods (8) being slidably mounted in the through holes, the guide sections of the fixed rods (8) being arranged as arched surfaces (31), and the fixed rods (8) being slidably connected to the guide openings.

4. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 3, characterized in that: An extension rod (23) is fixedly mounted on the bottom end of the fixed rod (8), a cross rod (25) is fixedly mounted on the bottom end of the extension rod (23), and both ends of the cross rod (25) are rotatably connected to two reinforcement blocks (26).

5. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 1, characterized in that: The outer protection component comprises a plurality of outer reinforcing rods (13), a plurality of outer reinforcing ribs (12) are fixedly mounted on the surfaces of the plurality of outer reinforcing rods (13), and the tube body (2) is wrapped around the surfaces of the plurality of outer reinforcing ribs (12) and the outer reinforcing rods (13).

6. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 1, characterized in that: The reinforcement assembly comprises a plurality of inner reinforcement rods (16), a plurality of inner reinforcement ribs (15) are fixedly mounted on the surfaces of the plurality of inner reinforcement rods (16), a plurality of upper connecting rings (18) are fixedly mounted on the upper parts of the inner reinforcement ribs (15), a plurality of lower connecting rings (19) are fixedly mounted on the lower parts of the inner reinforcement ribs (15), the upper connecting rings (18) and the lower connecting rings (19) are slidably mounted with the same fixed rod (8), and the surfaces of the plurality of inner reinforcement rods (16) and the inner reinforcement ribs (15) are wrapped with a reinforcement body (5), and the reinforcement body (5) is fixedly mounted on the inner wall of the tube body (2).

7. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 1, characterized in that: The connection assembly comprises a plurality of splicing seats (11), a plurality of mounting holes (30) are provided on the upper side of the tube body (2), the plurality of splicing seats (11) are fixedly installed in the mounting holes (30) correspondingly, a plurality of splicing blocks (7) are fixedly installed at the bottom end of the extension tube (3), the splicing blocks (7) are adapted to the splicing seats (11), a plurality of insertion holes are provided on the surface of the tube body (2), and a tenon block (10) is fixedly installed in each of the plurality of insertion holes.

8. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 1, characterized in that: The connection assembly also includes a plurality of connection grooves (4) formed at the top end of the tube body (2), and a plurality of joints (6) are fixedly mounted at the bottom end of the extension tube (3).

9. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 4, characterized in that: Two reinforcement grooves (22) are provided on one side of the reinforcement ring block (21), and reinforcement heads (28) are fixedly mounted on the lower sides of the two reinforcement blocks (26).

10. The prestressed concrete prefabricated anti-extraction pipe pile according to claim 3, characterized in that: Limit openings (17) are provided on the surfaces of the plurality of fixed rods (8), and limit rods (9) are slidably mounted in the plurality of limit openings (17).

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