A large pipe pile sinking pile tip structure for dock engineering

Abstract

The present invention relates to the field of foundation engineering technology, and discloses a large pipe pile driving pile tip structure for dock engineering, comprising: a connecting platform connected to a pile driving column; a connecting frame arranged at the bottom of the connecting platform, and the connecting frame is rotatably connected to the bottom of the connecting platform; by arranging the connecting platform, the connecting frame, the crushing boss and the crushing frame, during the pile driving process, the pile column drives the connecting platform to move toward the connecting frame, and the rotating component can rotate the connecting frame to rotate the crushing boss, the pile tip body and the crushing frame. The rotating motion can effectively cut and crush the foundation soil layer, thereby improving the penetration ability of the pile body. The crushing frame in the crushing boss is connected to the pile tip body, and further crushes the hard soil layer or rock layer during the rotation process, thereby improving the pile driving efficiency, especially in hard rock layers or dense sand layers, which greatly improves the effect of the pile driving work.

Description

Technical Field

[0001] The invention relates to the technical field of foundation engineering, and in particular to a large pipe pile sinking pile tip structure for dock engineering. Background Art

[0002] In dock projects, large-diameter pipe piles are an important foundation construction technology and are widely used in the construction of various ports, docks and offshore platforms. Pipe piles have become an indispensable part of deep foundation construction due to their good bearing capacity and ability to adapt to complex geological conditions. With the expansion of engineering construction scale and the complexity of construction geological conditions, the application of large-diameter pipe piles in deep water areas and complex geological conditions has gradually increased, showing important engineering value.

[0003] In recent years, with the advancement of engineering technology and the improvement of infrastructure requirements, various pile foundation projects have put forward higher requirements on the performance of pipe piles. Especially in the ocean and coastal areas, due to the influence of various environmental factors such as water depth, tides, and ocean currents, the strength, stability, and durability of pipe piles are severely challenged. Therefore, researching and developing more advanced large pipe pile sinking technology and pile tip structure has become the key to improving the quality of wharf projects and extending the service life of infrastructure.

[0004] However, with the increasing complexity of the engineering environment, traditional large pipe piles face great challenges in the process of pile sinking, especially in some hard soil and rock layers. The complex geological conditions in the ocean and coastal areas, such as hard rock layers and dense sand layers, require the pile foundation to have not only sufficient bearing capacity, but also high penetration ability to successfully complete the pile sinking operation. This environment puts higher requirements on the performance of the pipe pile tip structure, and it is urgent to improve the design to adapt to efficient construction under different geological conditions. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a large pipe pile sinking pile tip structure for dock engineering, aiming to alleviate the above problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A large pipe pile sinking pile tip structure for dock engineering, comprising:

[0008] A connecting platform connected to the pile column;

[0009] A connecting frame provided at the bottom of the connecting platform, wherein the connecting frame is rotatably connected to the bottom of the connecting platform;

[0010] A crushing boss is arranged at the bottom of the connecting frame, and a crushing frame is arranged inside the crushing boss;

[0011] A pile tip body disposed in the connecting frame, the pile tip body being connected to the crushing frame;

[0012] A cavity is formed on the pile tip body, wherein liquid is stored in the cavity;

[0013] A plurality of wet openings are provided on the top of the crushing frame and communicated with the cavity;

[0014] A rotating component provided between the connecting platform and the connecting frame, used to rotate the connecting frame, and the connecting frame rotates in one direction;

[0015] a conveying component disposed in the cavity, used for conveying the liquid in the cavity to the wet opening;

[0016] Wherein, the rotating component can rotate the connecting frame when the connecting platform moves toward the connecting frame, and the conveying component can quantitatively convey liquid into the wet opening when the connecting frame rotates.

[0017] Preferably, the crushing frame comprises a plurality of crushing blades connected to the outer wall of the pile tip body, the crushing blades are connected to the connecting frame, and a reinforcing rod is connected between the crushing blades and the pile tip body.

[0018] Preferably, the rotating component includes a connecting ring rotatably connected to the bottom of the connecting platform, the connecting frame is slidably connected to the bottom of the connecting ring, a positioning frame is connected inside the connecting ring, the top of the pile tip body passes through the connecting frame and is sleeved with the connecting ring, a ring body is fixed to the outside of the pile tip body, a plurality of wedge blocks are connected to the top of the ring body, and a top rod located at the top of the wedge block is connected to the top of the connecting ring.

[0019] Preferably, a plurality of pawls are rotatably connected inside the connecting ring, a first spring is connected between the pawl and the connecting ring, and a ratchet extending into the connecting ring is connected to the bottom of the connecting platform, and the ratchet is meshed with the pawl.

[0020] Preferably, the conveying component includes a connecting port opened on the reinforcing rod and connected to the cavity, the wet opening is opened on the reinforcing rod and connected to the connecting port, a conveying bag is provided in the cavity, a plurality of liquid outlets are opened on the side wall of the conveying bag, and a liquid inlet is opened on the top of the conveying bag.

[0021] Preferably, a blocking rod is connected to the bottom of the cavity, a connecting rod is connected to the top of the delivery bag and passes through the cavity and extends to the top of the pile tip body, and the connecting rod is slidably connected to the connecting platform.

[0022] Preferably, a sliding groove is provided on the side wall of the connecting platform, and a limiting rod slidably connected to the sliding groove is connected to the connecting ring.

[0023] Preferably, a limiting groove is provided at the bottom of the connecting ring, a limiting frame slidably connected to the limiting groove is connected to the top of the connecting frame, and a second spring is connected to the bottom of the positioning frame, and the second spring is in contact with the connecting frame.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. Improve penetration ability:

[0026] By setting up the connection platform, connection frame, crushing boss and crushing frame, during the pile sinking process, the pile column drives the connection platform to move toward the connection frame, and the rotating component can rotate the connection frame to rotate the crushing boss, pile tip body and crushing frame. The rotating movement can effectively cut and crush the foundation soil layer, thereby improving the penetration ability of the pile body.

[0027] 2. Enhance the crushing effect:

[0028] The crushing frame in the crushing boss is connected to the pile tip body, which further crushes the hard soil or rock layer during the rotation process, thereby improving the pile sinking efficiency, especially in hard rock or dense sand layers, greatly improving the effect of the pile sinking work.

[0029] 3. Lubrication and wetting function:

[0030] The wetting opening on the pile tip body releases the liquid stored in the cavity quantitatively under the action of the conveying component. These liquids are released into the soil where the pile tip body and the crushing boss contact through the wetting opening, which plays a role in lubricating and moistening the soil, not only reducing the heat and friction generated during the crushing process, but also softening the soil, further reducing the resistance during the pile sinking process.

[0031] 4. Stability and bearing capacity:

[0032] During the pile sinking process, the rotating component can stably control the unidirectional rotation of the connecting frame, so that the crushing boss and the pile tip body can continue to maintain the ability to crush and penetrate the foundation. This design not only improves the efficiency of pile sinking, but also ensures the stability and bearing capacity of the pile body under complex geological conditions.

[0033] 5. Improve equipment durability:

[0034] Through the wetting effect of the liquid, the wear of the equipment during the construction process is reduced, thereby improving the durability of the equipment, which helps to maintain stable performance during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0037] Figure 3 It is a schematic diagram of the connection platform structure of the present invention;

[0038] Figure 4 It is a schematic diagram of the connecting ring structure of the present invention;

[0039] Figure 5 It is a schematic diagram of the structure of the connecting frame of the present invention;

[0040] Figure 6 It is a schematic diagram of the pile tip body structure of the present invention;

[0041] Figure 7 It is a schematic diagram of the cavity structure of the present invention;

[0042] Figure 8 It is a schematic diagram of the positioning frame structure of the present invention.

[0043] Reference numerals:

[0044] 100, connecting platform; 101, connecting frame; 102, crushing boss; 103, crushing frame; 104, pile tip body; 105, cavity; 106, wet opening;

[0045] 200, broken blade; 201, reinforcing rod;

[0046] 300, connecting ring; 301, positioning frame; 302, ring body; 303, wedge block; 304, push rod; 305, pawl; 306, first spring; 307, ratchet;

[0047] 400, connection port; 401, delivery capsule; 402, liquid outlet; 403, liquid inlet; 404, blocking rod; 405, connecting rod;

[0048] 500, slide groove; 501, limit rod; 502, limit groove; 503, limit frame; 504, second spring. DETAILED DESCRIPTION

[0049] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0050] refer to Figure 1-Figure 8, a large pipe pile sinking pile tip structure for dock engineering, comprising:

[0051] A connecting platform 100 is connected to the pile column;

[0052] A connecting frame 101 is disposed at the bottom of the connecting platform 100, and the connecting frame 101 is rotatably connected to the bottom of the connecting platform 100;

[0053] A crushing boss 102 is provided at the bottom of the connecting frame 101, and a crushing frame 103 is provided inside the crushing boss 102;

[0054] A pile tip body 104 is disposed in the connecting frame 101, and the pile tip body 104 is connected to the crushing frame 103;

[0055] A cavity 105 is formed on the pile tip body 104, and liquid is stored in the cavity 105;

[0056] A plurality of wet openings 106 are provided on the top of the crushing frame 103 and communicate with the cavity 105;

[0057] The rotating component provided between the connecting platform 100 and the connecting frame 101 is used to rotate the connecting frame 101, and the connecting frame 101 rotates in one direction;

[0058] A conveying member disposed in the cavity 105, for conveying the liquid in the cavity 105 to the wet opening 106;

[0059] The rotating component can rotate the connecting frame 101 when the connecting platform 100 moves toward the connecting frame 101, and the conveying component can quantitatively convey liquid into the wet opening 106 when the connecting frame 101 rotates;

[0060] By setting up the connecting platform 100, the connecting platform 100 can be connected to the bottom of the pile column. During construction, the connecting platform 100, the connecting frame 101, the crushing boss 102 and the crushing frame 103 at the bottom of the pile are perpendicular to the bottom surface, and preliminary pile sinking work is carried out to embed the device and part of the pile column below the bottom surface, and use a heavy hammer to repeatedly hammer the top of the pile, and gradually drive the pile body into the foundation through kinetic energy. During operation, when the hammer hammers the top of the pile column, because the crushing boss 102, the pile tip body 104 and the crushing frame 103 are in direct contact with the foundation soil, the crushing boss 102 has resistance to the excavation of the soil. When hammering the pile column, the pile column will move toward the connecting frame 101 with the connecting platform 100. When the pile tip 100 moves toward the connecting frame 101, the rotating component can rotate the connecting frame 101, and the pile tip body 104, the crushing frame 103 and the crushing boss 102 arranged in the connecting frame 101 can rotate to cut and crush the foundation soil layer through movement, thereby improving the penetration ability of the pile body. At the same time, the crushing frame 103 arranged in the crushing boss 102 is connected to the pile tip body 104, and can further crush the hard soil or rock layer during the rotation process. Moreover, after each hammering, the connecting platform 100 will move away from the connecting frame 101 and reset, thereby improving the pile sinking efficiency. At the same time, the wetting opening 106 on the pile tip body 104, under the action of the conveying component, quantitatively releases the liquid stored in the cavity 105. These liquids are released into the soil in contact with the pile tip body 104 and the crushing boss 102 through the wet opening 106, playing a role of lubrication and cooling, further reducing the heat and friction generated during the crushing process. During the hammering process, while the pile column continues to sink, the rotating component can stably control the unidirectional rotation of the connecting frame 101, so that the crushing boss 102 and the pile tip body 104 continue to maintain the ability to crush and penetrate the foundation. This design not only improves the efficiency of pile driving, but also ensures the stability and bearing capacity of the pile body under complex geological conditions. Through the above design, the device can adapt to a variety of complex geological conditions, especially in hard rock layers or dense sand layers, greatly improving the efficiency and effect of pile driving. At the same time, through the wetting effect of the liquid, the wear of the equipment during the construction process is reduced, thereby improving the durability of the equipment, which helps to maintain stable performance during long-term use.

[0061] As a further solution of the present invention, the crushing frame 103 includes a plurality of crushing blades 200 connected to the outer wall of the pile tip body 104, the crushing blades 200 are connected to the connecting frame 101, and a reinforcing rod 201 is connected between the crushing blades 200 and the pile tip body 104;

[0062] By setting the crushing blade 200, the crushing ability of the pile tip body 104 during the pile sinking process can be further enhanced. The crushing blade 200 is connected to the outer wall of the pile tip body 104 and is connected to the connecting frame 101. This design enables the crushing blade 200 to effectively cut and crush the hard soil or rock layer in the foundation during the rotation process. The layout and number of the crushing blades 200 optimize the crushing effect and improve the pile sinking efficiency. The reinforcing rod 201 between the crushing blade 200 and the pile tip body 104 provides additional support and stability to ensure that the crushing blade 200 will not deform or fall off during the working process. This design not only enhances the structural strength of the crushing frame 103, but also improves its cutting and crushing ability for the foundation soil layer. Overall, the setting of the crushing frame 103 and the crushing blade 200 can significantly improve the penetration ability of the pile sinking, especially when dealing with complex geological conditions, by efficiently crushing the soil and rock layers, reducing the resistance generated during the pile sinking process. This improvement helps to speed up the progress of pile sinking, improve construction efficiency, and at the same time ensure the stability and bearing capacity of the pile body in deep foundation construction.

[0063] As a further solution of the present invention, the rotating component includes a connecting ring 300 rotatably connected to the bottom of the connecting platform 100, the connecting frame 101 is slidably connected to the bottom of the connecting ring 300, the connecting ring 300 is connected with a positioning frame 301, the top of the pile tip body 104 passes through the connecting frame 101 and is sleeved with the connecting ring 300, the outside of the pile tip body 104 is fixed with a ring body 302, the top of the ring body 302 is connected to a plurality of wedge blocks 303, and the top of the connecting ring 300 is connected to a top rod 304 located at the top of the wedge block 303;

[0064] By setting the positioning frame 301, the pile tip body 104 is sleeved inside the connecting frame 101, which can provide necessary support and guidance for the pile tip body 104. When the connecting platform 100 moves close to the connecting frame 101, it can drive the connecting ring 300 and the positioning frame 301 in the connecting ring 300 to move toward the connecting frame 101. The top rod 304 set on the positioning frame 301 can contact the wedge block 303 and apply pressure to the slope surface of the wedge block 303. Since the wedge block 303 rotates after being stressed, the pile tip body 104, the crushing boss 102, the crushing frame 103 and the connecting frame 101 rotate together. This rotation mechanism can realize the precise rotation of the pile tip body 104, ensuring its effective penetration and crushing in the foundation. At the same time, the design of the rotating component can maintain the stability of the structure during the rotation of the pile tip body 104, prevent the pile tip body 104 from being offset or tilted, thereby improving the accuracy and efficiency of the pile driving operation. Overall, through the cooperation of the positioning frame 301, the wedge block 303, the top rod 304 and the connecting ring 300, the rotating component not only ensures the stable and accurate rotation of the pile tip body 104, but also optimizes the crushing and penetration capabilities during the pile driving process. This design significantly improves the adaptability and construction effect of pile driving under complex geological conditions.

[0065] As a further solution of the present invention, a plurality of ratchets 305 are rotatably connected inside the connecting ring 300, a first spring 306 is connected between the ratchets 305 and the connecting ring 300, a ratchet 307 extending into the connecting ring 300 is connected to the bottom of the connecting platform 100, and the ratchet 307 is meshed with the ratchets 305;

[0066] By setting the ratchet 307, the rotation control and positioning function of the connecting ring 300 can be realized. Specifically, the connecting ring 300 is internally connected with a plurality of ratchets 305, and these ratchets 305 are connected to the connecting ring 300 through the first spring 306, and the spring provides the necessary elastic force to keep the ratchets 305 engaged with the ratchet 307. The bottom of the connecting platform 100 is connected with a ratchet 307 extending into the connecting ring 300, and the ratchet 307 is engaged with the ratchet 305 to form an anti-reversal locking mechanism. When the connecting platform 100 moves toward the connecting frame 101, the engagement of the ratchet 307 with the ratchet 305 ensures that the connecting ring 300 can be accurately controlled during the rotation process, avoiding the unexpected reverse rotation of the connecting ring 300. The ratchet 305 is always kept in an engaged state with the ratchet 307 by the action of the first spring 306, so as to provide stable support and accurate positioning for the rotation when the connecting ring 300 rotates. In this way, the pile tip body 104, the crushing boss 102 and the crushing frame 103 can be accurately rotated in the required direction without unexpected sliding or deviation, which can effectively avoid the reverse rotation of the crushing frame 103, resulting in a decrease in the crushing efficiency of the soil or rock layer and increased construction difficulty.

[0067] As a further solution of the present invention, the delivery component includes a connection port 400 provided on the reinforcing rod 201 and communicating with the cavity 105, a wet opening 106 provided on the reinforcing rod 201 and communicating with the connection port 400, a delivery capsule 401 is provided in the cavity 105, a plurality of liquid outlets 402 are provided on the side wall of the delivery capsule 401, and a liquid inlet 403 is provided on the top of the delivery capsule 401;

[0068] By setting up the conveying bag 401, the liquid in the cavity 105 can enter the conveying bag 401 through the liquid inlet 403. The multiple liquid outlets 402 opened on the side wall of the conveying bag 401 are staggered with the connecting port 400 and can be closed by the inner wall of the cavity 105. When the connecting platform 100 moves downward, the conveying bag 401 can move downward. When the connecting frame 101 rotates, the downward movement of the conveying bag 401 can make the liquid outlet 402 on the side wall of the conveying bag 401 communicate with the connecting port 400. At this time, the liquid inlet 403 can be closed, and the liquid can be guided into the connecting port 400 by using the conveying bag 401 with a rated capacity. The liquid can enter the wetting opening 106 through the connecting port 400, thereby realizing effective liquid transportation. Through this design, the liquid can be released through the wetting opening 106 during the pile sinking process. In combination with the vibration caused by the hammering, the liquid can effectively leave the wetting opening 106 to lubricate and wet the contacted soil. This mechanism not only improves the crushing and cutting effects, but also further reduces the friction and heat generation during construction, ensuring the smooth progress of the pile driving process, while improving the crushing efficiency of the soil layer and the construction quality. In addition, the position of the wet opening 106 is at the top of the reinforcing rod 201, ensuring that the liquid can fully cover the contact area between the crushing frame 103 and the pile tip body 104, optimizing the overall crushing and cutting effects, and helping to improve the penetration ability and construction stability of the pile driving.

[0069] As a further solution of the present invention, a blocking rod 404 is connected to the bottom of the cavity 105, and a connecting rod 405 is connected to the top of the delivery capsule 401, which passes through the cavity 105 and extends to the top of the pile tip body 104, and the connecting rod 405 is slidably connected to the connecting platform 100;

[0070] By setting the blocking rod 404, when the connecting platform 100 moves toward the connecting frame 101, the conveying capsule 401 can be moved downward through the connecting rod. When the conveying capsule 401 moves downward, the blocking rod 404 can be inserted into the liquid inlet 403 to close the liquid inlet 403. At this time, the side wall liquid outlet 402 of the conveying capsule 401 is docked with the connecting port 400 to ensure that the liquid can flow from the conveying capsule 401 through the liquid outlet 402 into the connecting port 400. In this way, the liquid can be quantitatively released to the moistening opening 106, and during the pile sinking process, it is evenly distributed in the soil through the moistening opening 106 to achieve effective lubrication and moistening effects. This quantitative delivery mechanism not only improves the accuracy and efficiency of construction, but also ensures the economy of liquid use and the stability of the construction process.

[0071] As a further solution of the present invention, a sliding groove 500 is provided on the side wall of the connecting platform 100, and a limiting rod 501 slidably connected to the sliding groove 500 is connected to the connecting ring 300;

[0072] By providing the limiting rod 501 , the limiting rod 501 and the slide groove 500 can connect the connecting ring 300 with the connecting platform 100 , and can support the connecting ring 300 .

[0073] As a further solution of the present invention, a limiting groove 502 is provided at the bottom of the connecting ring 300, a limiting frame 503 slidably connected to the limiting groove 502 is connected to the top of the connecting frame 101, and a second spring 504 is connected to the bottom of the positioning frame 301, and the second spring 504 is in contact with the connecting frame 101;

[0074] By setting the second spring 504, during the construction process, the second spring 504 provides the necessary elastic support, so that the limit frame 503 can slide smoothly in the limit groove 502, while maintaining the relative position between the connecting ring 300 and the connecting frame 101, so as to facilitate the subsequent resetting of the connecting platform 100. During the next hammering, the connecting frame 101 can be effectively rotated. During the construction process, after the pile body is embedded in the foundation to a preset depth, concrete or other filling materials are poured to fix the pile body and provide the required bearing capacity.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large pipe pile sinking pile tip structure for dock engineering, characterized in that: include: A connecting platform (100) connected to the pile column; A connecting frame (101) is arranged at the bottom of the connecting platform (100), and the connecting frame (101) is rotatably connected to the bottom of the connecting platform (100); A crushing boss (102) is arranged at the bottom of the connecting frame (101), and a crushing frame (103) is arranged inside the crushing boss (102); A pile tip body (104) is arranged in the connecting frame (101), and the pile tip body (104) is connected to the crushing frame (103); A cavity (105) is provided on the pile tip body (104), wherein liquid is stored in the cavity (105); A plurality of wet openings (106) formed on the top of the crushing frame (103) and communicating with the cavity (105); A rotating component provided between the connecting platform (100) and the connecting frame (101), used for rotating the connecting frame (101), wherein the connecting frame (101) rotates in one direction; a conveying component disposed in the cavity (105), used for conveying the liquid in the cavity (105) to the wet opening (106); The rotating component is capable of rotating the connecting frame (101) when the connecting platform (100) moves toward the connecting frame (101), and the conveying component is capable of conveying liquid into the wet opening (106) in a quantitative manner when the connecting frame (101) rotates; The crushing frame (103) comprises a plurality of crushing blades (200) connected to the outer wall of the pile tip body (104), the crushing blades (200) being connected to the connecting frame (101), and a reinforcing rod (201) being connected between the crushing blades (200) and the pile tip body (104); The conveying component comprises a connection port (400) provided on the reinforcing rod (201) and communicating with the cavity (105); the wet opening (106) is provided on the reinforcing rod (201) and communicating with the connection port (400); a conveying capsule (401) is provided in the cavity (105); a plurality of liquid outlets (402) are provided on the side wall of the conveying capsule (401); and a liquid inlet (403) is provided on the top of the conveying capsule (401); The rotating component comprises a connecting ring (300) rotatably connected to the bottom of the connecting platform (100); the connecting frame (101) is slidably connected to the bottom of the connecting ring (300); a positioning frame (301) is connected inside the connecting ring (300); the top of the pile tip body (104) passes through the connecting frame (101) and is sleeved with the connecting ring (300); a ring body (302) is fixed to the outside of the pile tip body (104); a plurality of wedge blocks (303) are connected to the top of the ring body (302); and a top rod (304) located at the top of the wedge blocks (303) is connected to the top of the connecting ring (300).

2. The large pipe pile sinking pile tip structure for dock engineering according to claim 1 is characterized in that: The connecting ring (300) is internally rotatably connected with a plurality of ratchets (305), a first spring (306) is connected between the ratchets (305) and the connecting ring (300), and the bottom of the connecting platform (100) is connected with a ratchet (307) extending into the connecting ring (300), and the ratchet (307) is meshed with the ratchets (305).

3. The large pipe pile sinking pile tip structure for dock engineering according to claim 1 is characterized in that: The bottom of the cavity (105) is connected to a blocking rod (404), the top of the delivery bag (401) is connected to a connecting rod (405) that passes through the cavity (105) and extends to the top of the pile tip body (104), and the connecting rod (405) is slidably connected to the connecting platform (100).

4. The large pipe pile sinking pile tip structure for dock engineering according to claim 1 is characterized in that: A sliding groove (500) is provided on the side wall of the connecting platform (100), and a limiting rod (501) slidably connected to the sliding groove (500) is connected to the connecting ring (300).

5. The large pipe pile sinking pile tip structure for dock engineering according to claim 1 is characterized in that: A limiting groove (502) is provided at the bottom of the connecting ring (300), a limiting frame (503) slidably connected to the limiting groove (502) is connected to the top of the connecting frame (101), and a second spring (504) is connected to the bottom of the positioning frame (301), and the second spring (504) is in contact with the connecting frame (101).

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