A device for replacing a pile

Abstract

The application provides a pile-replacing and splicing device, and belongs to the technical field of submarine piling engineering. The device comprises an external connecting mechanism and an internal splicing mechanism. The external connecting mechanism comprises a first ear plate and a second ear plate. The first ear plate is arranged on a replacement pile, and the second ear plate is arranged on an engineering pile. A connecting mechanism is detachably connected between the first ear plate and the second ear plate. The internal splicing mechanism comprises a first joint, a splicing ring and a second joint. In a connected state, the first joint is located inside the replacement pile, the second joint is located inside the engineering pile, and the two sides of the splicing ring abut against the end of the replacement pile and the end of the engineering pile, respectively. The internal splicing mechanism and the external connecting mechanism can stably connect the replacement pile and the engineering pile together without welding and cutting, thereby avoiding the cost increase and safety risks caused by underwater welding and cutting. The device has a simple and stable structure, is convenient to manufacture, has high efficiency in field use, and is suitable for pile hammers and steel piles of various sizes.

Description

Technical Field

[0001] This application relates to the field of submarine piling engineering technology, and more specifically, to a replacement piling device. Background Technology

[0002] In marine engineering, single-point mooring systems primarily serve the positioning of FPSOs (Floating Production Storage and Offloading) and crude oil export terminals. Unlike fixed wharves, their key feature is "point" mooring, allowing large oil tankers to load and unload at points in deep water near the shore.

[0003] For CALM (Controlled Access Loading and Mooring) single-point mooring systems, piling involves both anchor piles and PLEM (Pile Loading and Embedding Monitoring) piles. Six anchor piles are typically arranged symmetrically, while PLEM piles are used to secure the PLEM. Since both need to be driven below the water surface, replacement piles are required as a medium connecting the pile hammer and the pile, and a pile connector is used to connect the replacement piles to the main pile.

[0004] However, existing methods for connecting SPM (Single Point Mooring) anchor piles and PLEM piles require underwater welding and cutting. This process involves hoisting a replacement pile after the steel pile has penetrated the seabed, divers underwater welding the replacement pile to the steel pile, and then driving it to the predetermined depth and cutting and retrieving the replacement pile underwater. This method suffers from long underwater operation times, increased downtime costs for the vessel and equipment, and additional safety risks associated with underwater welding and cutting operations. Summary of the Invention

[0005] This application aims to provide a replacement pile splicing device, which is designed to solve the problems of underwater welding and underwater cutting required in pile driving construction.

[0006] The first aspect of this application provides a replacement pile splicing device, comprising: an external connection mechanism and an internal docking mechanism; the external connection mechanism includes a plurality of ear plate assemblies, the ear plate assembly including a first ear plate and a second ear plate, the first ear plate being disposed on the outer wall of the replacement pile, the second ear plate being disposed on the outer wall of the engineering pile, and a connection mechanism being detachably connected between the first ear plate and the second ear plate, the connection mechanism being used to connect the first ear plate and the second ear plate;

[0007] The internal docking mechanism includes a first connector, a docking ring, and a second connector. The first connector is connected to one side of the docking ring, and the second connector is connected to the side of the docking ring away from the first connector.

[0008] With the replacement pile connected to the engineering pile via the internal docking mechanism, the first joint is located inside the replacement pile, the second joint is located inside the engineering pile, and the two sides of the docking ring abut against the ends of the replacement pile and the engineering pile, respectively.

[0009] Optionally, the connection mechanism includes a first connection component and a second connection component;

[0010] The first connecting component is connected to the second connecting component, and the end of the first connecting component away from the second connecting component is connected to the first ear plate, and the end of the second connecting component away from the first connecting component is connected to the second ear plate;

[0011] The first connecting component has an adjusting member that can adjust the length of the first connecting component.

[0012] Optionally, the second connecting assembly includes a connecting rod, with connecting rings rotatably mounted at both ends of the connecting rod;

[0013] The first ear plate is detachably provided with a first lifting lug, and the second ear plate is detachably provided with a second lifting lug. The first lifting lug is connected to one end of the first connecting assembly, the connecting ring at one end of the connecting rod is connected to the other end of the first connecting assembly, and the connecting ring at the other end of the connecting rod is connected to the second lifting lug.

[0014] Optionally, the first connecting assembly includes a support rod, which is a hollow structure. The adjusting component includes two lead screws, which are threaded into the interior of the support rod from both ends. Each of the two lead screws is rotatably connected to a lifting ring at one end away from the other. The lifting ring has an opening, and a closed screw is threaded to the position of the opening.

[0015] The two lifting rings are respectively connected to the first lifting lug and the second connecting assembly.

[0016] Optionally, both the first connector and the second connector are hollow inside.

[0017] Optionally, both the first connector and the second connector have multiple reinforcing ribs inside.

[0018] Optionally, both the first joint and the second joint have multiple reinforcing ribs on their outer walls.

[0019] Optionally, the replacement pile device further includes an alignment component, which includes a first alignment plate and a second alignment plate. The first alignment plate is disposed on the outer wall of the replacement pile, and the second alignment plate is disposed on the outer wall of the engineering pile.

[0020] When the replacement pile is connected to the engineering pile, the first alignment plate and the second alignment plate are aligned with each other.

[0021] Optionally, the first alignment plate comprises two parallel plates, and the second alignment plate is located between the two plates of the first alignment plate when the replacement pile is connected to the engineering pile.

[0022] Optionally, each of the two plates has a guide plate at one end near the second alignment plate, and the distance between the two guide plates gradually increases along the direction from the replacement pile to the engineering pile.

[0023] Beneficial effects:

[0024] This application can stably connect the replacement pile and the engineering pile by setting an internal docking mechanism and an external connection mechanism, without the need for welding and cutting, thus avoiding the increased costs and safety risks caused by underwater welding and cutting. In addition, the device has a simple and stable structure, is easy to manufacture, has high efficiency in field use, and is highly adaptable to the size of pile hammers and steel piles. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a pile replacement device for connecting replacement piles and engineering piles according to an embodiment of this application;

[0027] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0028] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0029] Figure 4 This is a partial cross-sectional schematic diagram of a pile replacement device connecting a replacement pile and an engineering pile according to an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of the internal docking mechanism proposed in one embodiment of this application;

[0031] Explanation of reference numerals in the attached drawings: replacement pile 100, engineering pile 101, first ear plate 200, second ear plate 201, first joint 300, butt ring 301, second joint 302, reinforcing rib 303, connecting rod 400, connecting ring 401, first lifting lug 402, second lifting lug 403, bearing rod 404, threaded rod 405, lifting ring 406, closed screw 407, first alignment plate 500, second alignment plate 501, guide plate 502. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The engineering pile 101 is a foundation pile that needs to be driven into the seabed in marine engineering, such as a PLEM pile. When driving the engineering pile 101 into the seabed, the pile head of the engineering pile 101 needs to be driven below the water surface. The replacement pile 100 is a pile that is connected to the upper end of the engineering pile 101 and extends out of the water surface for the pile hammer to strike. The pile hammer strikes the replacement pile 100, and the replacement pile 100 transmits the impact force to the engineering pile 101, so that the engineering pile 101 is driven into the ground. In this way, the pile driving operation of the engineering pile 101 can be carried out indirectly above the water surface, reducing the difficulty of the project. The replacement pile connecting device provided in this application is a device that connects the replacement pile 100 and the engineering pile 101.

[0034] like Figure 1 and Figure 2 As shown in the figure, a replacement pile connection device disclosed in this application embodiment is provided. The replacement pile connection device includes an external connection mechanism and an internal docking mechanism. The external connection mechanism is used to connect the replacement pile 100 and the engineering pile 101 externally, and the internal docking mechanism is used to connect the replacement pile 100 and the engineering pile 101 internally.

[0035] Specifically, the external connection mechanism includes multiple ear plate assemblies, each ear plate assembly including a first ear plate 200 and a second ear plate 201. The first ear plate 200 is disposed on the outer wall of the replacement pile 100, and the second ear plate 201 is disposed on the outer wall of the engineering pile 101. A connection mechanism is detachably connected between the first ear plate 200 and the second ear plate 201, the connection mechanism being used to connect the first ear plate 200 and the second ear plate 201.

[0036] The first ear plate 200 and the second ear plate 201 serve as connection points. The connecting mechanism is used to connect the first ear plate 200 and the second ear plate 201 together, thereby connecting the replacement pile 100 and the engineering pile 101, which are respectively connected to the first ear plate 200 and the second ear plate 201, to achieve external connection between the replacement pile 100 and the engineering pile 101. The connecting mechanism is detachably connected to both the first ear plate 200 and the second ear plate 201. After the complete pile driving operation, the connecting mechanism can be disassembled, so that the replacement pile 100 can be directly recovered without underwater cutting operations to separate the replacement pile 100 and the engineering pile 101, thus reducing the construction difficulty.

[0037] In this embodiment of the application, the connecting mechanism includes a first connecting component and a second connecting component;

[0038] The first connecting component is connected to the second connecting component, and the end of the first connecting component away from the second connecting component is connected to the first ear plate 200, and the end of the second connecting component away from the first connecting component is connected to the second ear plate 201.

[0039] The first connecting component has an adjusting member that can adjust the length of the first connecting component, thereby adjusting the length of the entire connecting mechanism. The connection between the first connecting component and the second connecting component is a mutually movable interlocking connection, allowing the first connecting component and the second connecting component to move relative to each other around the connection point, without being fixed to each other. In this way, the entire connecting mechanism has the function of adjusting the length and changing the direction, thereby adapting to different positions of the first ear plate 200 and the second ear plate 201 during specific construction.

[0040] like Figure 2 As shown, specifically, the second connecting assembly includes a connecting rod 400, with connecting rings 401 rotatably mounted at both ends of the connecting rod 400. The connecting rings 401 at both ends of the second connecting assembly can rotate. The connecting rings 401 can rotate when connected to other components, so that the connecting rings 401 can adapt to different connection situations and facilitate installation and operation.

[0041] The first connecting assembly includes a support rod 404, which is a hollow structure. The adjusting component includes two lead screws 405, which are threaded into the interior of the support rod 404 from both ends. Each of the two lead screws 405 is rotatably connected to a lifting ring 406 at its far end. The lifting ring 406 has an opening, and a closed screw 407 is threadedly connected to the opening.

[0042] The supporting rod 404 supports two lead screws 405. The lead screws 405 can extend or retract based on the supporting rod 404. Since the lead screws 405 and the supporting rod 404 are threadedly connected, and the supporting rod 404 is hollow, when the lead screw 405 is rotated, it can be removed from the supporting rod 404 depending on the direction of rotation, thus separating the lead screw 405 from the supporting rod 404. Alternatively, the lead screw 405 can be rotated to push it into the supporting rod 404. That is, when the lead screw 405 rotates, if it moves inward into the supporting rod 404, the overall length of the supporting rod 404 and the lead screw 405 decreases. To achieve the retraction function, if the lead screw 405 moves outward from the support rod 404, the overall length of the support rod 404 and the lead screw 405 increases, achieving the elongation function, thereby realizing the function of adjusting the length of the first connecting component. The function of the lifting ring 406 is the same as that of the connecting ring 401, both used to connect other components, and it can rotate to adapt to different connection situations and facilitate installation. The difference is that the lifting ring 406 has an opening. During installation, other components are inserted into the lifting ring 406 through the opening, and then the opening of the lifting ring 406 is closed by the closing screw 407, which can restrict the inserted components inside the lifting ring 406 and realize the connection and installation operation.

[0043] Specifically, the first ear plate 200, the first connecting assembly, the second connecting group, and the second ear plate 201 are connected in sequence. The first ear plate 200 is detachably provided with a first lifting lug 402, and the second ear plate 201 is detachably provided with a second lifting lug 403. The first lifting lug 402 and the second lifting lug 403 are both connected to the first ear plate 200 and the second ear plate 201 by screws, thereby realizing the detachability of the first lifting lug 402 and the second lifting lug 403.

[0044] During installation, the first lifting lug 402 is connected to the lifting ring 406 at one end of the first connecting assembly, the connecting ring 401 at one end of the connecting rod 400 is connected to the lifting ring 406 at the other end of the first connecting assembly, and the connecting ring 401 at the other end of the connecting rod 400 is connected to the second lifting lug 403. After the pile driving is completed, the second lifting lug 403 can be disassembled so that the external connection between the replacement pile 100 and the engineering pile 101 disappears, so that no cutting and separation operation is required when the replacement pile 100 is subsequently recovered.

[0045] like Figure 4 and Figure 5As shown, the internal docking mechanism includes a first connector 300, a docking ring 301, and a second connector 302. The first connector 300 is connected to one side of the docking ring 301, and the second connector 302 is connected to the side of the docking ring 301 away from the first connector 300.

[0046] Both the first connector 300 and the second connector 302 are cylindrical. The outer diameter of the first connector 300 is smaller than that of the replacement pile 100, and the outer diameter of the second connector 302 is smaller than that of the engineering pile 101. The outer diameter of the docking ring 301 is larger than that of both the replacement pile 100 and the engineering pile 101. When the replacement pile 100 and the engineering pile 101 are connected via the internal docking mechanism, the first connector 300 is located inside the replacement pile 100, and the second connector 302 is located inside the engineering pile 101. The two sides of the docking ring 301 abut against the ends of the replacement pile 100 and the engineering pile 101, respectively. When the pile hammer strikes the replacement pile 100, the replacement pile 100 transmits the impact force to the docking ring 301, which then transmits the force to the engineering pile 101, causing the engineering pile 101 to be driven into the seabed strata. During piling, the connection between the replacement pile 100 and the main pile 101 is filled by the first joint 300 and the second joint 302. However, due to the influence of seawater flow or the hammer impact point during piling, the force transmitted by the replacement pile 100 may be offset rather than vertically transmitted to the main pile 101. In this case, the first joint 300 and the second joint 302 can counteract this offset force, thereby preventing the replacement pile 100 and the main pile 101 from bending, deforming, or detaching at the connection.

[0047] Furthermore, in order to reduce the weight of the first connector 300 and the second connector 302 and reduce the burden of installation and handling, both the first connector 300 and the second connector 302 are hollow inside.

[0048] Furthermore, in order to increase the strength of the hollow first joint 300 and the second joint 302, multiple reinforcing ribs are provided inside the first joint 300 and the second joint 302. By reinforcing the first joint 300 and the second joint 302, it can be prevented that the first joint 300 and the second joint 302 will deform during the piling process and lose their function of offsetting the offset force.

[0049] Furthermore, to facilitate the insertion and removal of the first connector 300 and the second connector 302 into the replacement pile 100 and the engineering pile 101, a gap is left between the first connector 300 and the inner wall of the replacement pile 100, and a gap is also left between the second connector 302 and the inner wall of the engineering pile 101. At the same time, to ensure that the first connector 300 and the second connector 302 can achieve a filling effect without being in contact with the inner wall of the replacement pile 100 and the engineering pile 101, the outer walls of the first connector 300 and the second connector 302 are provided with multiple reinforcing ribs 303. The reinforcing ribs 303 are used to abut against the inner wall of the replacement pile 100 and the engineering pile 101. In this way, while facilitating the insertion and removal of the first connector 300 and the second connector 302, it is ensured that the first connector 300 and the second connector 302 do not lose their function of counteracting offset forces.

[0050] Furthermore, to simplify different piling situations, such as when different sizes of engineering piles 101 need to be driven, which may require different sizes of piling machinery, and the back-and-forth movement of the piling machinery is very time-consuming and labor-intensive, the first joint 300 can be cut and removed from the docking ring 301, and then replaced with a first joint 300 that matches the on-site piling machinery and the corresponding replacement pile 100. At the same time, the connecting mechanism, which can change direction and adjust length, can also fully adapt to different replacement piles 100 and engineering piles 101, so that the replacement piles 100 and engineering piles 101 can be different sizes during the piling operation.

[0051] like Figure 3 As shown, further, in order to connect the replacement pile 100 and the engineering pile 101 at a predetermined angle during installation, the replacement pile connection device also includes an alignment component. The alignment component includes a first alignment plate 500 and a second alignment plate 501. The first alignment plate 500 is disposed on the outer wall of the replacement pile 100, and the second alignment plate 501 is disposed on the outer wall of the engineering pile 101.

[0052] When the replacement pile 100 is connected to the engineering pile 101, the first alignment plate 500 and the second alignment plate 501 are aligned with each other, so that it can be determined that the replacement pile 100 and the engineering pile 101 are connected at a predetermined angle.

[0053] Furthermore, to prevent relative rotation between the substitute pile 100 and the engineering pile 101 during the pile driving process, which could affect the pile driving effect or damage the connection mechanism, the first alignment plate 500 includes two parallel plates. When the substitute pile 100 and the engineering pile 101 are connected, the second alignment plate 501 is located between the two plates of the first alignment plate 500. Thus, when the second alignment plate 501 is located between the two plates of the first alignment plate 500, the two plates of the first alignment plate 500 can restrict the second alignment plate 501, thereby limiting the relative rotation between the substitute pile 100 and the engineering pile 101 connected to the first alignment plate 500 and the second alignment plate 501.

[0054] Furthermore, to facilitate the installation and connection of the replacement pile 100 and the engineering pile 101, the second alignment plate 501 is more easily placed between the two plates of the first alignment plate 500. Each of the two plates is provided with a guide plate 502 at one end near the second alignment plate 501, and the distance between the two guide plates 502 gradually increases along the direction from the replacement pile 100 to the engineering pile 101. This increases the entrance of the two plates of the first alignment plate 500, making it easier to place the second alignment plate 501.

[0055] Specifically, during installation, the replacement pile 100 and the engineering pile 101 are first hoisted and aligned. Then, the internal docking mechanism is placed between the replacement pile 100 and the engineering pile 101. The replacement pile 100 and the engineering pile 101 are moved closer to each other, so that the first joint 300 of the internal docking mechanism enters the interior of the replacement pile 100, and the second joint 302 of the internal docking mechanism enters the interior of the engineering pile 101. The ends of the replacement pile 100 and the engineering pile 101 abut against the docking ring 301 respectively. During the process of moving the replacement pile 100 and the engineering pile 101 closer to each other, the positions of the first alignment plate 500 and the second alignment plate 501 are observed, and the angles of the replacement pile 100 and the engineering pile 101 are adjusted so that the second alignment plate 501 enters between the two plates of the first alignment plate 500, ensuring that the connection angle of the replacement pile 100 and the engineering pile 101 is correct.

[0056] After the internal docking mechanism is installed, the external connecting mechanism is connected. First, the first lug 402 is installed on the first ear plate 200 with screws. Then, one of the lifting rings 406 of the first connecting assembly is fastened to the first lug 402, and the lifting ring 406 is closed with the closing screw 407, so that the first lug 402 and the lifting ring 406 are connected.

[0057] Then, another lifting ring 406 of the first connecting assembly is engaged with a connecting ring 401 of the second connecting assembly, and the lifting ring 406 is closed by the closing screw 407, so that the lifting ring 406 is connected to the connecting ring 401.

[0058] Then, the other connecting ring 401 of the second connecting assembly is fastened to the second lifting lug 403, and finally the second lifting lug 403 fastened to the connecting ring 401 is installed on the second ear plate 201 by screws, thus completing the installation of the external connecting mechanism and connecting the replacement pile 100 and the engineering pile 101.

[0059] During the installation of the external connecting mechanism, the length of the first connecting component can be adjusted by rotating the lead screw 405 of the first connecting component to adapt to different installation situations. At the same time, the first lifting lug 402 is connected to the lifting ring 406, the lifting ring 406 is connected to the connecting ring 401, and the first lifting lug 402 is connected to the lifting ring 406. This allows relative movement between the first lifting lug 402, the first connecting component, the second connecting component, and the second lifting lug 403. This enables the first connecting component and the second connecting component to be rotated or moved as needed during the installation of the external connecting mechanism, facilitating the installation operation.

[0060] After installation, the replacement pile 100 and the engineering pile 101 can be lifted to the pile driving position for pile driving. After pile driving is completed, the second lifting lug 403 can be disassembled, and then the replacement pile 100 along with the external connecting mechanism can be recycled. At the same time, after the replacement pile 100 and the engineering pile 101 are separated, the internal docking mechanism can also be recycled.

[0061] By setting up an internal docking mechanism and an external connection mechanism, the replacement pile 100 and the engineering pile 101 can be stably connected together without welding or cutting, avoiding the increased costs and safety risks caused by underwater welding and cutting. In addition, the device has a simple and stable structure, is easy to manufacture, has high efficiency in field use, and is highly adaptable to the size of pile hammers and steel piles.

[0062] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0063] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. In the absence of further restrictions, an element defined by the phrase "includes a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0064] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application, and the content of this specification should not be construed as a limitation of this application. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all implementation methods here, and obvious changes or modifications derived therefrom are still within the protection scope of this application.

Claims

1. A pile replacement device, characterized in that, include: An external connection mechanism and an internal docking mechanism; the external connection mechanism includes multiple ear plate assemblies, each ear plate assembly including a first ear plate and a second ear plate, the first ear plate being disposed on the outer wall of the replacement pile, the second ear plate being disposed on the outer wall of the engineering pile, and a connection mechanism being detachably connected between the first ear plate and the second ear plate, the connection mechanism being used to connect the first ear plate and the second ear plate; The internal docking mechanism includes a first connector, a docking ring, and a second connector. The first connector is connected to one side of the docking ring, and the second connector is connected to the side of the docking ring away from the first connector. With the replacement pile and the engineering pile connected by the internal docking mechanism, the first joint is located inside the replacement pile, the second joint is located inside the engineering pile, and the two sides of the docking ring abut against the ends of the replacement pile and the ends of the engineering pile, respectively. The connecting mechanism includes a first connecting component and a second connecting component; The first connecting component is connected to the second connecting component, and the end of the first connecting component away from the second connecting component is connected to the first ear plate, and the end of the second connecting component away from the first connecting component is connected to the second ear plate; The first connecting component has an adjusting member, which can adjust the length of the first connecting component; The second connecting component includes a connecting rod, with connecting rings rotatably mounted at both ends of the connecting rod; The first ear plate is detachably provided with a first lifting lug, and the second ear plate is detachably provided with a second lifting lug. The first lifting lug is connected to one end of the first connecting assembly, the connecting ring at one end of the connecting rod is connected to the other end of the first connecting assembly, and the connecting ring at the other end of the connecting rod is connected to the second lifting lug. The first connecting component includes a support rod, which is a hollow structure. The adjusting component includes two lead screws, which are threaded into the interior of the support rod from both ends. Each of the two lead screws is rotatably connected to a lifting ring at one end away from the other. The lifting ring has an opening, and a closed screw is threaded to the opening. The two lifting rings are respectively connected to the first lifting lug and the second connecting assembly; Both the first joint and the second joint have multiple reinforcing ribs on their outer walls; The replacement pile device further includes an alignment component, which includes a first alignment plate and a second alignment plate. The first alignment plate is disposed on the outer wall of the replacement pile, and the second alignment plate is disposed on the outer wall of the engineering pile. When the replacement pile is connected to the engineering pile, the first alignment plate and the second alignment plate are aligned with each other. The first alignment plate comprises two parallel plates, and the second alignment plate is located between the two plates of the first alignment plate when the replacement pile is connected to the engineering pile.

2. The pile replacement device according to claim 1, characterized in that: Both the first connector and the second connector are hollow inside.

3. The pile replacement device according to claim 2, characterized in that: Both the first connector and the second connector have multiple reinforcing ribs inside.

4. The pile replacement device according to claim 1, characterized in that: Each of the two plates has a guide plate at one end near the second alignment plate, and the distance between the two guide plates gradually increases along the direction from the replacement pile to the engineering pile.

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