Precast pile core structure of prefabricated wharf

Abstract

This utility model relates to the field of precast pile core technology and discloses a precast pile core structure for assembled wharves, including two precast pile core segments. A connector is provided between the two precast pile core segments, and a connecting mechanism is provided on the upper and lower sides of the connector. The connecting mechanism is used to fix the connector to the two precast pile core segments. A protective mechanism is provided on the outside of each of the two precast pile core segments to protect the connection between the two precast pile core segments from erosion. In this utility model, the octagonal positioning blocks on the upper and lower sides of the connector are positioned by cooperating with the octagonal positioning grooves of the precast pile core segments. The tenon and the groove are radially limited, the ear plate and the limiting groove define the vertical position, the pin and the threaded rod are threadedly locked with the tenon, and the spherical sealing head and the spherical sealing groove are sealed. This achieves a stable and sealed connection between the precast pile core segments and the connector, preventing seawater and silt from entering the connection gap and avoiding a decrease in strength due to corrosion.

Description

Technical Field

[0001] This utility model relates to the field of precast pile core technology, and in particular to precast pile core structure for prefabricated wharves. Background Technology

[0002] Precast pile cores are the core component of precast pile structures. They are pile foundation components prefabricated in a factory or prefabrication site and then transported to the construction site for installation. They are made entirely of reinforced concrete and contain an internal steel reinforcement cage or prestressed steel bars to enhance structural strength and load-bearing capacity. Their external shape is designed according to project requirements. In large-scale infrastructure projects such as docks and bridges, precast pile cores are driven or pressed into the foundation. Through friction with the surrounding soil and end bearing capacity, they transfer the load of the superstructure to a deep, stable soil layer. Compared to traditional cast-in-place pile cores, precast pile cores offer advantages such as high production efficiency, controllable quality, and fast construction speed. They reduce on-site wet work and construction time, and minimize the impact of environmental factors on construction quality.

[0003] A search revealed a Chinese patent publication number: CN218405382U, entitled "Prefabricated Pile Core Structure for Prefabricated Wharf." This structure includes a prefabricated pile core structure with grouting channels. The outer wall of the prefabricated pile core structure is connected to ring-shaped reinforcing bars. The prefabricated pile core structure is inserted into the foundation pile, and the gap between the outer wall of the prefabricated pile core structure and the inner wall of the foundation pile forms the grouting zone. This prefabricated pile core structure aims to overcome existing defects by effectively connecting the prefabricated pile core structure and the foundation pile, replacing the current method of cast-in-place concrete pile core construction. This reduces the amount of on-site casting work and improves construction efficiency. However, after the prefabricated pile core structure is installed, seawater and sediment are not static. Under the influence of tides and currents, they can infiltrate through the connection gaps between the pile core sections. Long-term exposure to seawater corrosion and sediment erosion will cause the metal components at the connection points to gradually rust, and the concrete structure will also peel off due to seawater erosion. This leads to a decrease in the strength of the connection points, affecting the overall load-bearing capacity and stability of the pile core, and posing a risk of wharf safety hazards due to structural failure. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a prefabricated pile core structure for assembled wharves, which aims to improve the problem that the connection section of the prefabricated pile core structure is subject to long-term seawater corrosion and silt erosion, resulting in a decrease in the strength of the connection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated pile core structure for a prefabricated wharf, comprising two prefabricated pile core segments, a connector provided between the two prefabricated pile core segments, a connecting mechanism provided on the upper and lower sides of the connector, the connecting mechanism being used to fix the connector to the two prefabricated pile core segments, a protective mechanism being provided on the outside of each of the two prefabricated pile core segments, the protective mechanism being used to protect the connection between the two prefabricated pile core segments from erosion, and grouting holes being opened on the front side of each of the two prefabricated pile core segments;

[0006] The connecting mechanism includes two octagonal positioning blocks, which are fixedly connected to the upper and lower sides of the connector respectively. The outer sides of the two octagonal positioning blocks are fixedly connected with tenons. The upper and lower ends of the two precast pile core segments are provided with octagonal positioning grooves. The inner sides of the multiple octagonal positioning grooves are provided with grooves. Multiple ear plates are fixedly connected at equal intervals to the outer top and outer bottom of the connector. Multiple limiting grooves are provided at equal intervals to the upper and lower outer sides of the precast pile core segments. A locking component passes through the outer side of the connector.

[0007] The above technical solution achieves a stable and sealed connection between the precast pile core segment and the connector by using octagonal positioning blocks on the upper and lower sides of the connector to cooperate with the octagonal positioning groove of the precast pile core segment for positioning, radial positioning of the tenon and groove, vertical positioning of the ear plate and positioning groove, threaded locking of the pin and tenon, and sealing of the spherical sealing head and spherical sealing groove. This ensures that the pile core structure can stably bear load in the wharf project, prevents seawater and silt from intruding into the connection gap, avoids the connection mechanism from decreasing in strength due to corrosion, and extends the service life of the pile core structure.

[0008] As a further description of the above technical solution:

[0009] The protective mechanism includes two threaded walls, which are respectively fixedly connected to the upper outer part of the two precast pile core segments. Threaded sleeves are threadedly connected to the outside of both threaded walls. Fixing rings are fixedly connected to the lower outer part of the two precast pile core segments. Sealing rings are fixedly connected to the bottom of both fixing rings.

[0010] The above technical solution involves screwing the thread on the outer surface of the threaded wall with the inner thread of the threaded sleeve, causing the threaded sleeve to move upward and cover the connection of the precast pile core segment. At the same time, the sealing ring at the bottom of the fixing ring fits against the top of the threaded sleeve and makes close contact with the wharf foundation. This achieves the anti-erosion and sealing effect at the connection of the precast pile core segment. The threaded connection structure provides a stable protective component, and the sealing ring prevents seawater and silt from intruding, improving the durability of the pile core structure in the marine environment, reducing the risk of damage to the connection due to erosion, and ensuring the long-term safe operation of the wharf project.

[0011] As a further description of the above technical solution:

[0012] The locking assembly includes multiple lead pins, which pass through the top and bottom periphery of the outer side of the connector. The middle portions of the multiple lead pins pass through the adjacent outer ends of two precast pile core sections. The ends of the multiple lead pins are threaded to the outer periphery of two tenons. A spherical sealing head is fixedly connected to the outer end of each of the multiple lead pins. Spherical sealing grooves are provided on the top and bottom periphery of the outer side of the connector.

[0013] The above technical solution involves a combination of a threaded pin, a tenon, a spherical sealing head, and a spherical sealing groove. The threaded pin passes through the connector and the precast pile core section before being threaded onto the tenon. The outer end of the spherical sealing head is embedded in the spherical sealing groove, generating axial tensile force to secure the connection and form a sealing structure. This achieves a firm connection and corrosion-resistant sealing effect between the precast pile core section and the connector, ensuring the stability of the pile core structure and resisting seawater erosion.

[0014] As a further description of the above technical solution:

[0015] Both of the grouting holes are equipped with sealing plugs inside, and both sealing plugs are fixedly connected to a straight handle on the outside.

[0016] The above technical solution involves injecting grout into the injection hole to fill the gap. After grouting, a single-handle pulls the sealing plug into the grouting hole for sealing, thus achieving secondary reinforcement of the pile core structure and sealing of the grouting hole, enhancing the overall integrity and waterproofness, and preventing grout leakage and impurities from entering.

[0017] As a further description of the above technical solution:

[0018] Hidden grooves are provided on the left and right sides of both precast pile core segments, and lifting rings are fixedly connected inside the multiple hidden grooves.

[0019] The above technical solution involves fixing the lifting ring in a hidden groove. During transportation and installation, it connects to the lifting equipment, and when not in use, it is hidden in the groove. This achieves convenient lifting of the precast pile core segment and protection of the lifting ring, avoiding damage to the lifting ring and not affecting the appearance and installation compatibility of the pile core.

[0020] As a further description of the above technical solution:

[0021] Both of the precast pile core segments are internally fixedly connected with multiple vertical reinforcing bars, and the multiple vertical reinforcing bars are all designed symmetrically.

[0022] The above technical solution involves fixing vertical reinforcing ribs inside the precast pile core segment in a symmetrical distribution, thereby improving the structural strength and bearing capacity of the pile core and enhancing its load-bearing performance and structural stability in wharf engineering.

[0023] As a further description of the above technical solution:

[0024] Each of the multiple vertical reinforcing ribs has a collar fixedly connected to its upper and lower outer sides, and an X-shaped bracket is fixedly connected between each of the multiple collars.

[0025] Through the above technical solution, the collar is fixed to the outside of the vertical reinforcing rib, and the X-shaped bracket connects the collar, which enhances the overall stability of the pile core, disperses stress, improves the pile core's resistance to deformation, and adapts to the complex stress conditions in the marine environment.

[0026] As a further description of the above technical solution:

[0027] Each of the vertical reinforcing ribs has a second collar fixedly connected to its outer top and outer bottom. Each of the second collars has a connecting column fixedly connected to its outer side. The outer ends of the connecting columns are respectively fixedly connected to the inner sides of the two precast pile core sections.

[0028] Through the above technical solution: the second collar is fixed at the top and bottom of the vertical reinforcing bar, and the outer end of the connecting column is fixed to the inner perimeter of the precast pile core section, realizing the overall connection effect of multiple vertical reinforcing bars, forming a frame structure, further improving the integrity and impact resistance of the pile core structure, and ensuring long-term reliable operation.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the octagonal positioning blocks on the upper and lower sides of the connector are positioned in conjunction with the octagonal positioning groove of the precast pile core section. The tenon and the groove are radially limited, the ear plate and the limiting groove limit the vertical position, the pin and the threaded rod are threadedly locked with the tenon, and the spherical sealing head and the spherical sealing groove are sealed. This achieves a stable and sealed connection between the precast pile core section and the connector, ensuring that the pile core structure can stably bear load in the wharf project, preventing seawater and silt from intruding into the connection gap, avoiding the decrease in the strength of the connection mechanism due to corrosion, and extending the service life of the pile core structure.

[0031] 2. In this utility model, the thread on the outer surface of the threaded wall engages with the inner thread of the threaded sleeve, causing the threaded sleeve to move upward and cover the connection of the precast pile core segment. At the same time, the sealing ring at the bottom of the fixing ring fits against the top of the threaded sleeve and makes close contact with the wharf foundation, achieving the anti-erosion and sealing effect at the connection of the precast pile core segment. The threaded connection structure provides a stable protective component, and the sealing ring prevents seawater and silt from intruding, improving the durability of the pile core structure in the marine environment, reducing the risk of damage to the connection part due to erosion, and ensuring the long-term safe operation of the wharf project. Attached Figure Description

[0032] Figure 1 This is a front view of the prefabricated pile core structure of the assembled wharf proposed in this utility model;

[0033] Figure 2 This is a schematic diagram of the connecting parts in the prefabricated pile core structure of the assembled wharf proposed in this utility model;

[0034] Figure 3 This is a structural exploded view of the connector in the prefabricated pile core structure of the assembled wharf proposed in this utility model;

[0035] Figure 4 This is a cross-sectional view of the protective mechanism in the prefabricated pile core structure of the assembled wharf proposed in this utility model.

[0036] Figure 5 This is a cross-sectional view of the precast pile core section in the prefabricated pile core structure of the assembled wharf proposed in this utility model.

[0037] Legend:

[0038] 1. Precast pile core segment; 2. Connector; 3. Connecting mechanism; 301. Octagonal positioning block; 302. Tenon; 303. Octagonal positioning groove; 304. Groove; 305. Ear plate; 306. Limiting groove; 307. Locking assembly; 3071. Pin screw; 3072. Spherical sealing head; 3073. Spherical sealing groove; 4. Protective mechanism; 401. Threaded wall; 402. Threaded sleeve; 403. Fixing ring; 404. Sealing ring; 5. Grouting hole; 6. Sealing plug; 7. Straight handle; 8. Hidden groove; 9. Lifting ring; 10. Vertical reinforcing rib; 11. Collar ring one; 12. X-shaped bracket; 13. Collar ring two; 14. Connecting column. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0040] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides: a prefabricated pile core structure for a prefabricated wharf, including two prefabricated pile core segments 1, a connector 2 between the two prefabricated pile core segments 1, a connecting mechanism 3 on the upper and lower sides of the connector 2, the connecting mechanism 3 being used to fix the connector 2 to the two prefabricated pile core segments 1, a protective mechanism 4 being provided on the outside of each of the two prefabricated pile core segments 1, the protective mechanism 4 being used to protect the connection between the two prefabricated pile core segments 1 from erosion, and a grouting hole 5 being opened on the front side of each of the two prefabricated pile core segments 1;

[0041] The connecting mechanism 3 includes two octagonal positioning blocks 301, which are fixedly connected to the upper and lower sides of the connector 2, respectively. Each of the two octagonal positioning blocks 301 has a tenon 302 fixedly connected to its exterior. Octagonal positioning grooves 303 are provided at the upper and lower ends of the two precast pile core segments 1, and grooves 304 are provided on the inner sides of the multiple octagonal positioning grooves 303. Multiple ear plates 305 are fixedly connected at equal intervals to the outer top and bottom of the connector 2. Multiple limiting grooves 306 are provided at equal intervals at the upper and lower outer ends of the outer side of the precast pile core segment 1. A locking assembly passes through the exterior of the connector 2. Component 307, the locking assembly 307 includes multiple pin screws 3071, the multiple pin screws 3071 respectively pass through the top and bottom periphery of the outer side of the connector 2, the middle part of the multiple pin screws 3071 respectively passes through the adjacent outer side of the two precast pile core sections 1, the ends of the multiple pin screws 3071 are respectively threaded to the outer periphery of the two protruding tenons 302, the outer ends of the multiple pin screws 3071 are all fixedly connected with spherical sealing heads 3072, and spherical sealing grooves 3073 are opened on the top and bottom periphery of the outer side of the connector 2.

[0042] Specifically, in the connecting mechanism 3, the octagonal positioning blocks 301 on the upper and lower sides of the connector 2 cooperate with the octagonal positioning grooves 303 at the upper and lower ends of the precast pile core segment 1 to form initial positioning. The protruding tenons 302 on the outside of the octagonal positioning blocks 301 are embedded in the grooves 304 of the precast pile core segment 1 to provide radial limiting and prevent horizontal displacement between the connector 2 and the precast pile core segment 1. The ear plates 305 on the top and bottom outer sides of the connector 2 correspond to the limiting grooves 306 on the outer side of the precast pile core segment 1. When the connector 2 is inserted between the two precast pile core segments 1, the ear plates 305 are engaged in the limiting grooves 306 to further limit the vertical position of the connector 2. The pin screw 3071 of the locking assembly 307 passes through the top outer side of the connector 2. The connector 2 is fastened to the precast pile core section 1 by rotating the pin screw 3071 around the bottom and around the perimeter, and passing through the outer side of the adjacent end of the precast pile core section 1. The end of the pin screw 3071 is threaded to the outer side of the tenon 302. By rotating the pin screw 3071, its end is tightly engaged with the tenon 302, generating axial tension, which fastens the connector 2 to the precast pile core section 1. The spherical sealing head 3072 at the outer end of the pin screw 3071 is embedded in the spherical sealing groove 3073 of the connector 2 to form a sealing structure, preventing seawater and silt from entering the connection gap. The octagonal positioning block 301 and the octagonal positioning groove 303 are used for positioning, the tenon 302 and the groove 304 are used for radial limiting, the pin screw 3071 and the tenon 302 are threadedly locked, and the spherical sealing head 3072 and the spherical sealing groove 3073 are used for sealing. The sealing fit of the 3073 sealing groove achieves a multi-dimensional and stable connection between the precast pile core segment 1 and the connector 2, ensuring the load-bearing stability of the pile core structure in the wharf project. The protective mechanism 4 covers the outside of the connection between the two precast pile core segments 1, blocking the erosion of the connection area by seawater, tides, and silt through its wrapping structure. The protective mechanism 4 is made of corrosion-resistant material, and its inner side is tightly fitted to the surface of the precast pile core segment 1 and the connector 2, forming a physical barrier to reduce the direct impact of water flow on the connection gap. When the wharf precast pile core structure is sunk to the seabed or exposed to the intertidal zone, the protective mechanism 4 effectively isolates external corrosive media, preventing the connection mechanism 3 from being damaged by seawater over a long period of time. Corrosion leads to a decrease in strength and extends the service life of the pile core structure. The grouting hole 5 is opened on the front side of the precast pile core section 1. After the pile core section is installed, grout is filled into the pile core through the grouting hole 5 to ensure the reliable operation of the pile core in the marine environment. The connecting mechanism 3, through the cooperation of the multi-level positioning and locking components 307, ensures the precise docking and firm connection between the precast pile core section 1 and the connector 2. The protective mechanism 4 provides durable protection against erosion. The grouting hole 5 realizes the filling of the filler. Through multiple mechanisms such as mechanical positioning, threaded locking, physical protection and grout filling, all components jointly ensure the ease of installation, load-bearing reliability and environmental durability of the precast pile core structure of the prefabricated wharf.

[0043] Reference Figure 1 , Figure 2 and Figure 4The protective mechanism 4 includes two threaded walls 401, which are respectively fixedly connected to the upper and middle parts of the outer side of the two precast pile core sections 1. Threaded sleeves 402 are threadedly connected to the outer side of the two threaded walls 401. Fixing rings 403 are fixedly connected to the lower and middle parts of the outer side of the two precast pile core sections 1. Sealing rings 404 are fixedly connected to the bottom of the two fixing rings 403.

[0044] Specifically, in the protective mechanism 4, two threaded walls 401 are welded to the upper outer sides of the two precast pile core sections 1, respectively. The outer surfaces of these walls are threaded. The inner surface of the threaded sleeve 402 has threads that match those of the threaded walls 401. By rotating the threaded sleeve 402, it engages with the threaded walls 401. During this engagement, the threaded sleeve 402 gradually moves upward until it covers the connection point of the two precast pile core sections 1. A fixing ring 403 is fixedly connected to the lower outer sides of the two precast pile core sections 1, providing a stable support structure for the entire protective mechanism 4. A sealing ring 404 is fixedly connected to the bottom of the fixing ring 403. When the threaded sleeve 402 rotates to the top, its top will fit against the sealing ring 404. After the protective mechanism 4 is installed, the precast pile core section 1 is tightly attached to the wharf foundation or other adjacent structures. When the precast pile core segment 1 is installed in the wharf foundation, the threaded sleeve 402 is rotated to engage with the threaded wall 401, thus achieving initial protection of the connection point of the precast pile core segment 1. At the same time, the cooperation of the fixing ring 403 and the sealing ring 404 ensures the sealing effect between the protective mechanism 4 and the wharf foundation or other adjacent structures, preventing seawater and silt from entering the connection point of the precast pile core segment 1, thereby achieving effective protection of the connection point of the precast pile core segment 1. Through the threaded connection between the threaded wall 401 and the threaded sleeve 402, and the cooperation between the fixing ring 403 and the sealing ring 404, the protective mechanism 4 achieves a stable protection and sealing effect for the connection point of the precast pile core segment 1. It can not only effectively prevent external factors from eroding the connection point of the precast pile core segment 1, but also improve the overall stability and durability of the precast pile core segment 1.

[0045] Reference Figure 1 and Figure 5Each of the two grouting holes 5 is equipped with a sealing plug 6, and a straight handle 7 is fixedly connected to the outside of each of the two sealing plugs 6; each of the two precast pile core segments 1 has a hidden groove 8 on its left and right sides, and a lifting ring 9 is fixedly connected inside the hidden groove 8; each of the two precast pile core segments 1 has a number of vertical reinforcing ribs 10 fixedly connected inside, and the number of vertical reinforcing ribs 10 adopts a symmetrical design; each of the upper and lower outer sides of the number of vertical reinforcing ribs 10 has a collar 11 fixedly connected, and an X-shaped bracket 12 is fixedly connected between the number of collars 11; each of the upper and lower outer sides of the number of vertical reinforcing ribs 10 has a collar 2 13 fixedly connected, and a connecting column 14 is fixedly connected to the outside of the number of collars 2 13, and the outer ends of the number of connecting columns 14 are respectively fixedly connected to the inner sides of the two precast pile core segments 1.

[0046] Specifically, two grouting holes 5 are used to inject filling grout after the precast pile core segment 1 is installed, to enhance the integrity and waterproof sealing performance of the pile core structure. After grouting, the sealing plug 6 is inserted into the grouting hole 5. The single-handle 7 facilitates the insertion and removal of the sealing plug 6 by the operator, achieving the sealing effect of the grouting hole 5 and preventing grout leakage and the entry of external impurities. The lifting rings 9 are fixedly connected in the hidden grooves 8 on the left and right sides of the precast pile core segment 1. During the transportation and installation of the precast pile core segment 1, they are used to connect the lifting equipment for easy lifting and positioning. The design of the hidden grooves 8 can protect the lifting rings 9 from damage when not in use, and also does not affect the appearance of the precast pile core segment 1. The multiple vertical reinforcing ribs 10 inside the precast pile core segment 1 adopt a symmetrical design, which enhances the structural strength of the pile core and The load-bearing capacity is enhanced by the collar 11 fixedly connected to the upper and lower outer sides of the vertical reinforcing rib 10, and the X-shaped bracket 12 fixedly connected between the collars 11, which further enhances the overall stability of the pile core. The design of the X-shaped bracket 12 can effectively disperse stress and improve the deformation resistance of the pile core. The collar 2 13 fixedly connected to the top and bottom outer sides of the vertical reinforcing rib 10, and the connecting column 14 fixedly connected to the outside of the collar 2 13, connect multiple vertical reinforcing ribs 10 together to form an integral frame structure. The outer ends of the connecting column 14 are fixedly connected to the inner sides of the two precast pile core sections 1, which further enhances the integrity and stability of the pile core structure and ensures the reliable operation of the precast pile core structure of the prefabricated wharf in a complex marine environment.

[0047] Working principle: Before the precast pile core segment 1 is installed, the hoisting equipment is connected through the hoisting ring 9 fixed in the hidden groove 8 to facilitate the transportation and hoisting positioning of the precast pile core segment 1. The hoisting ring 9 is hidden in the hidden groove 8, which can avoid collision damage when not in use, and does not affect the appearance and installation compatibility of the precast pile core segment 1. When splicing the precast pile core segment 1, the connector 2 is placed between the two precast pile core segments 1, and the connecting mechanism 3 plays its role. The octagonal positioning blocks 301 on the upper and lower sides of the connector 2 are embedded into the octagonal positioning grooves 303 at the upper and lower ends of the precast pile core segment 1 to complete the initial positioning and determine the relative position of the connector 2 and the precast pile core segment 1.The tenon 302 on the outside of the octagonal positioning block 301 is inserted into the groove 304 of the precast pile core segment 1, limiting the horizontal displacement of the connector 2 and the precast pile core segment 1 and providing radial limiting. At the same time, the ear plates 305 on the top and bottom outer sides of the connector 2 are engaged with the limiting grooves 306 at the upper and lower outer ends of the precast pile core segment 1, further limiting the vertical movement of the connector 2. After positioning, the locking assembly 307 is used for fastening. Multiple pins 3071 pass through the top and bottom of the connector 2 and through the adjacent end of the precast pile core segment 1. The ends are threaded to the outside of the tenon 302. Simply rotate the pins 3071 to make its end tightly engage with the tenon 302, creating an axial connection. A tensile force is applied to firmly connect the connector 2 to the precast pile core section 1. The spherical sealing head 3072 at the outer end of the pin screw 3071 is embedded in the spherical sealing groove 3073 of the connector 2, forming a sealing structure to prevent seawater and silt from intruding into the connection gap. Through multiple positioning and locking steps, a stable and sealed connection between the precast pile core section 1 and the connector 2 is achieved, ensuring the load-bearing stability of the pile core structure in the wharf project. After the connection is completed, the two threaded walls 401 in the installation protection mechanism 4 are pre-fixed to the upper middle part of the outer side of the precast pile core section 1. Their outer surfaces are threaded. The threaded sleeve 402 is screwed into the threaded wall 401. As the threaded sleeve 402 rotates, it moves along the threaded wall. 401 moves upward until it covers the connection between the two precast pile core segments 1. The fixing ring 403 fixed on the lower middle part of the outer side of the precast pile core segment 1 provides support for the protective mechanism 4. The sealing ring 404 at the bottom of the fixing ring 403 fits tightly with it when the threaded sleeve 402 is screwed to the top, effectively blocking the erosion of the connection part by seawater, tides and silt, isolating external corrosive media, avoiding the decrease in the strength of the connection mechanism 3 due to seawater corrosion, and extending the service life of the pile core structure. Then, the filling grout is injected through the grouting hole 5 on the front side of the precast pile core segment 1. The grout fills the inside of the pile core and the connection gap, further enhancing the integrity and waterproof sealing performance of the pile core structure. After the grouting is completed, the sealing plug 6 is installed. Inserted into the grouting hole 5, the sealing plug 6 has a single-handle 7 on its outside for easy operation, achieving a seal in the grouting hole 5 and preventing grout leakage and the entry of external impurities. Inside the precast pile core segment 1, multiple vertical reinforcing ribs 10 are symmetrically distributed to enhance the strength and bearing capacity of the pile core structure. The X-shaped brackets 12 fixed between the upper and lower collars 11 on the outer side of the vertical reinforcing ribs 10 disperse stress and improve the pile core's resistance to deformation. The collars 13 at the top and bottom on the outer side of the vertical reinforcing ribs 10 are fixedly connected to the inner perimeter of the precast pile core segment 1 via connecting columns 14, connecting multiple vertical reinforcing ribs 10 into an integral frame structure, further enhancing the integrity and stability of the pile core structure.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated wharf pile core structure comprising two prefabricated pile core segments (1), characterized in that: A connector (2) is provided between the two precast pile core segments (1). A connecting mechanism (3) is provided on the upper and lower sides of the connector (2). The connecting mechanism (3) is used to fix the connector (2) to the two precast pile core segments (1). A protective mechanism (4) is provided on the outside of the two precast pile core segments (1). The protective mechanism (4) is used to protect the connection between the two precast pile core segments (1) from erosion. A grouting hole (5) is opened on the front side of the two precast pile core segments (1). The connecting mechanism (3) includes two octagonal positioning blocks (301), which are fixedly connected to the upper and lower sides of the connector (2). The two octagonal positioning blocks (301) are fixedly connected to the outside of each of the two octagonal positioning blocks (302). The upper and lower ends of the two precast pile core segments (1) are provided with octagonal positioning grooves (303). The inner sides of the multiple octagonal positioning grooves (303) are provided with grooves (304). The outer top and outer bottom of the connector (2) are fixedly connected with multiple ear plates (305) at equal intervals. The upper and lower ends of the outer side of the precast pile core segment (1) are provided with multiple limiting grooves (306) at equal intervals. The outer side of the connector (2) is penetrated by a locking component (307).

2. The prefabricated pile core structure of the assembled wharf according to claim 1, characterized in that: The protective mechanism (4) includes two threaded walls (401), which are respectively fixedly connected to the upper outer part of the two precast pile core sections (1). The outer parts of the two threaded walls (401) are threaded with threaded sleeves (402), and the lower outer parts of the two precast pile core sections (1) are fixedly connected with fixing rings (403). The bottom of the two fixing rings (403) is fixedly connected with sealing rings (404).

3. The prefabricated pile core structure of the assembled wharf according to claim 1, characterized in that: The locking assembly (307) includes multiple lead pins (3071), which pass through the top and bottom peripheries of the outer side of the connector (2). The middle portions of the multiple lead pins (3071) pass through the adjacent outer ends of the two precast pile core sections (1). The ends of the multiple lead pins (3071) are threaded to the outer peripheries of the two tenons (302). The outer ends of the multiple lead pins (3071) are all fixedly connected with spherical sealing heads (3072). The top and bottom peripheries of the outer side of the connector (2) are provided with spherical sealing grooves (3073).

4. The prefabricated pile core structure of the assembled wharf according to claim 1, characterized in that: Both of the grouting holes (5) are provided with sealing plugs (6), and both of the sealing plugs (6) are fixedly connected to a straight handle (7).

5. The prefabricated pile core structure for prefabricated wharf as described in claim 1, characterized in that: Hidden grooves (8) are provided on the left and right sides of the two precast pile core segments (1), and lifting rings (9) are fixedly connected inside the multiple hidden grooves (8).

6. The prefabricated pile core structure for prefabricated wharf as described in claim 1, characterized in that: Both of the precast pile core segments (1) are fixedly connected with multiple vertical reinforcing bars (10), and the multiple vertical reinforcing bars (10) are all designed symmetrically.

7. The prefabricated pile core structure for prefabricated wharf as described in claim 6, characterized in that: Each of the upper and lower outer sides of the multiple vertical reinforcing ribs (10) is fixedly connected with a collar (11), and each of the multiple collars (11) is fixedly connected with an X-shaped bracket (12).

8. The prefabricated pile core structure for assembled wharf according to claim 6, characterized in that: The outer top and outer bottom of the multiple vertical reinforcing bars (10) are fixedly connected with collars (13), and the outer sides of the multiple collars (13) are fixedly connected with connecting columns (14). The outer ends of the multiple connecting columns (14) are respectively fixedly connected to the inner sides of the two precast pile core sections (1).

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