Tubular pile pulling-out device

Abstract

The utility model provides a tubular pile pulling-out device which comprises a supporting platform, and the two ends of the supporting platform are fixed to the spaces of the two sides of a target tubular pile correspondingly to form a stable operation base; the inverted brackets are welded to the surface of a target pipe pile, and all the inverted brackets are arranged at the same height higher than the supporting platform; the jack is placed on the supporting platform and used for applying upward jacking force to the target pipe pile; and the pushing steel plate is arranged at the top end of the jack, abuts against the inverted brackets and is used for transmitting the pushing force generated by the jack to the target pipe pile. Through the synergistic effect of the jack and the inverted bracket, a stable jacking force applying mode is provided, and the limitation of a traditional crane and vibration hammer method when the mechanical tonnage is limited is effectively overcome.

Description

Technical Field

[0001] The present disclosure relates to the technical field of construction engineering, and in particular to a pipe pile removal device. Background Art

[0002] In the construction industry, traditional methods for removing PC (prestressed concrete) and CT (concrete tube) piles typically involve the use of cranes and vibratory hammers. However, practical operations often present technical and environmental challenges. Especially on temporary work platforms with limited mechanical load capacity, space and equipment size constraints preclude the deployment of larger cranes and vibratory hammers, significantly limiting the flexibility and efficiency of construction operations.

[0003] Furthermore, inaccurate drilling positioning or grouting leaks can make pile extraction extremely difficult or even impossible. In these situations, construction companies are often forced to resort to underwater cutting as an alternative. However, this approach has significant drawbacks: Firstly, diving operations are expensive; secondly, underwater cutting can cause serious damage to the piles beneath the riverbed. These factors not only increase the project's economic costs but also heighten safety risks. Summary of the Invention

[0004] The present invention aims to provide a pipe pile extraction device, which aims to improve the efficiency and safety of pipe pile extraction while reducing construction costs and risks.

[0005] The present disclosure provides a pipe pile removal device, comprising:

[0006] A support platform, the two ends of which are respectively fixed to the spaces on both sides of the target pipe pile to form a stable operating base;

[0007] A plurality of inverted corbels, each of which is welded to the surface of the target pipe pile and each of which is arranged at the same height above the support platform;

[0008] a jack, placed on the support platform, for applying an upward thrust to the target pipe pile;

[0009] A jacking steel plate is provided at the top end of the jack and contacts the plurality of inverted corbels, and is used for transmitting the jacking force generated by the jack to the target pipe pile.

[0010] In one embodiment of the present disclosure, the support platform comprises:

[0011] Two brackets are respectively fixed on the spaces on both sides of the target pile;

[0012] An H-shaped steel spans and is fixed on the two corbels to form an operating platform for the jack.

[0013] In one embodiment of the present disclosure, adjacent pipe piles are provided on both sides of the target pipe pile, and the target pipe pile and the adjacent pipe piles are arranged in a straight line; the two corbels are respectively fixed to the adjacent pipe piles on both sides.

[0014] In one embodiment of the present disclosure, the number of the multiple inverted corbels is two or four, and they are symmetrically distributed around the target pipe pile to ensure uniform distribution of the jacking force.

[0015] In one embodiment of the present disclosure, the corbel is fixed to the target pipe pile by high-strength bolts or full penetration welding.

[0016] In one embodiment of the present disclosure, the jack is one of a hydraulic jack, a screw jack, a rack jack, a separate jack, a synchronous jack and a self-locking jack.

[0017] In one embodiment of the present disclosure, the jacking steel plate is designed to be thickened, and the thickness is adjusted according to the diameter of the target pipe pile and the required jacking force.

[0018] In one embodiment of the present disclosure, a lifting lug structure is further included; the lifting lug structure is provided on the target pipe pile and is used to cooperate with a crane hook to achieve stable lifting and removal operations of the target pipe pile.

[0019] In one embodiment of the present disclosure, the lifting lug structure of the target pipe pile is designed with anti-slip grooves to increase the friction between the crane hook and the lifting lug structure.

[0020] In one embodiment of the present disclosure, a safety locking mechanism is further included. The safety locking mechanism is provided between the jack and the jacking steel plate and is used to lock the jack during the pile pulling process to prevent the jack from retreating due to unexpected circumstances.

[0021] As described above, the pipe pile removal device provided in the embodiments of the present disclosure has at least the following technical effects:

[0022] (1) By combining the synergistic effect of the jack and the inverted bracket, a stable method of applying thrust is provided, which effectively overcomes the limitations of traditional crane and vibratory hammer methods when the mechanical tonnage is limited. It can also remove PC pipe piles and CT pipe piles without adding additional heavy machinery, reducing dependence on large lifting equipment, thereby reducing construction costs and safety risks.

[0023] (2) The design of multiple inverted corbels ensures that the thrust force can be evenly distributed around the target pile, reducing local stress concentration and avoiding damage to the pile caused by uneven force distribution.

[0024] (3) By installing a lifting lug structure on the target pile and combining it with an anti-slip pattern, the connection stability between the crane hook and the pile is enhanced. This effectively prevents accidents caused by sliding or falling off during the lifting process, improves the safety of the lifting operation, and ensures the continuity and reliability of the pile extraction operation.

[0025] (4) The introduction of a safety locking mechanism provides additional safety for pile extraction operations. In the event of an emergency or unexpected force, the mechanism can quickly lock the jack to prevent it from suddenly retreating, thereby protecting construction workers from injury and reducing the risk of equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a pipe pile removal device according to an embodiment of the present disclosure is shown.

[0027] Figure 2 A schematic structural diagram of a pipe pile removal device with adjacent pipe piles according to an embodiment of the present disclosure is shown.

[0028] Figure 3 A schematic diagram showing the structure of a pipe pile removal device used in conjunction with a crane in one embodiment of the present disclosure is shown.

[0029] Component number description

[0030] Support platform 1

[0031] Corbel 11

[0032] H-beam 12

[0033] Inverted Corbel 2

[0034] Jack 3

[0035] Push steel plate 4

[0036] Target pile 5

[0037] Adjacent pipe pile 6 DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0039] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. Therefore, the illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0040] The present invention provides a pipe pile extraction device, which aims to overcome the limitation of mechanical tonnage of traditional crane and vibration hammer methods and improve the efficiency and safety of pipe pile extraction.

[0041] The present disclosure provides a pipe pile extraction device, comprising a support platform 1, a plurality of inverted corbels 2, a jack 3 and a jacking steel plate 4.

[0042] like Figure 1 The above is a schematic structural diagram of the pipe pile extraction device, where both ends of the support platform 1 are respectively fixed to the spaces on both sides of the target pipe pile to form a stable operating base.

[0043] Specifically, the support platform 1 is usually made of a strong material, such as steel, to ensure that it will not be deformed or damaged when it is subjected to the thrust generated by the jack 3. The structural design of the platform needs to take into account the load-bearing capacity, stability and the connection method with the pipe pile. The two ends of the support platform 1 are connected to the two side spaces of the target pipe pile by an appropriate fixing method. This fixation can be achieved by high-strength bolt connection, welding or clamping device, depending on the material of the pipe pile and the specific requirements of the construction site. The fixing method must ensure sufficient friction and tensile strength to withstand the horizontal and vertical forces generated during the pile extraction process.

[0044] The fixed positions at both ends of the support platform 1 need to be accurately measured and positioned to ensure that the platform is level and aligned with the centerline of the piles. This usually involves using measuring tools such as a level and a plumb bob to ensure the accurate installation of the platform.

[0045] In addition, the fixation of the support platform 1 is not limited to vertical stability, but also needs to consider horizontal stability. The platform may be subjected to lateral forces from the jacks 3, so it is necessary to design anti-lateral displacement measures, such as diagonal braces or additional support structures.

[0046] In some embodiments, the support platform 1 includes: two corbels 11, respectively fixed on the spaces on both sides of the target pipe pile; and an H-shaped steel 12 spanning and fixed on the two corbels 11 to form an operating platform for the jack 3.

[0047] Specifically, the supporting platform 1 is composed of two brackets 11 and one H-shaped steel 12 , and these components together form a solid base for placing and operating the jack 3 .

[0048] The corbels 11 are key components of the support platform 1, secured to the spaces on either side of the target pile. Each corbel 11 is appropriately sized and shaped to ensure a secure connection to the side of the pile. Corbels 11 are typically made of high-strength steel to withstand the thrust forces generated during pile extraction.

[0049] Connecting the two corbels 11 is an H-shaped steel bar 12, which spans and is fixed to the two corbels 11. The H-shaped steel bar 12, named for its cross-sectional shape, offers excellent bending resistance and high load-bearing capacity, making it an ideal material for constructing the support platform 1. The ends of the H-shaped steel bar 12 can be connected to the corbels 11 through welding, bolting, or other mechanical connection methods. These connection methods must ensure sufficient strength and durability to withstand the various stresses that may occur during pile extraction operations.

[0050] Further, such as Figure 2 As shown, in some embodiments, adjacent pipe piles 6 are provided on both sides of the target pipe pile, and the target pipe pile and the adjacent pipe piles 6 are arranged in a straight line; the two corbels 11 are respectively fixed on the adjacent pipe piles 6 on both sides.

[0051] Specifically, in a particular embodiment of the pipe pile extraction device, the design of the device takes into account the specific layout of the construction site, especially the configuration when there are adjacent pipe piles 6 on both sides of the target pipe pile.

[0052] In this embodiment, the stability of the support platform 1 is achieved by securing the corbels 11 to adjacent tubular piles 6. Specifically, each corbel 11 is designed to adapt to the size and shape of an adjacent tubular pile 6 and securely connect thereto. This connection can be achieved by welding, high-strength bolts, or other mechanical means to ensure that the corbels 11 do not shift or loosen when a jacking force is applied.

[0053] By securing the corbels 11 to adjacent piles 6, the construction of the support platform 1 not only utilizes existing structures but also increases the stability of the entire extraction device. This design allows the operating platform of the jack 3 to span the target pile while evenly distributing the force on the adjacent piles 6 on either side, reducing the load on the target pile itself and the risk of damage caused by applying force solely to the target pile.

[0054] In addition, this embodiment also takes into account the space limitations of the construction site. By using adjacent pipe piles 6 as support points, the space occupied by the support platform 1 can be reduced, so that the removal operation can be carried out in a limited space, which is particularly suitable for urban construction sites or environments with limited space.

[0055] A plurality of inverted corbels 2 are welded to the surface of the target pipe pile, and each of the inverted corbels 2 is arranged at the same height above the support platform 1 .

[0056] Specifically, in the design of the pipe pile extraction device, the inverted corbels 2 function to transmit the thrust generated by the jacks 3 to the target pipe pile. Each inverted corbel 2 is positioned at the same height above the support platform 1. This design allows the thrust steel plates 4 to contact all inverted corbels 2 evenly, ensuring that the thrust force is evenly distributed across the entire circumference of the pipe pile. This avoids localized stress concentration caused by uneven force distribution, thereby reducing the risk of damage to the pipe pile and improving the safety of the pile extraction operation.

[0057] The number and layout of the inverted corbels 2 are also carefully designed. They are typically symmetrically distributed around the pile to ensure even distribution of the jacking force. This symmetrical layout helps maintain the pile's balance during removal, preventing tilting or deviation caused by asymmetric forces.

[0058] In some embodiments, the number of the multiple inverted corbels 2 is two or four, and they are symmetrically distributed around the target pile to ensure uniform distribution of the jacking force.

[0059] Specifically, the number of inverted corbels 2 is designed to be two or four, a choice based on mechanical principles and practical construction requirements. The use of two or four inverted corbels 2 allows the jacking force to be evenly distributed around the pile, thereby reducing damage to the pile due to concentrated force. Secondly, when two or four inverted corbels 2 are symmetrically distributed around the target pile, they provide multiple contact points that can more evenly withstand the jacking force from the jacks 3. This distribution helps improve the structural strength and reliability of the entire system, especially when dealing with larger diameter or deeper piles.

[0060] Furthermore, the corbel 11 is fixed to the target pipe pile by high-strength bolts or full penetration welding.

[0061] Specifically, high-strength bolting is a widely used fixing method that provides a removable and adjustable connection. Using high-strength bolts ensures sufficient clamping force between the corbel 11 and the pile, while allowing for fine-tuning during installation to ensure precise alignment and leveling. The advantage of this connection method lies in its reversibility, facilitating the removal and reinstallation of the corbel 11 when needed, which is very useful for maintenance and component replacement. Furthermore, high-strength bolts can withstand significant preload, which helps resist the shear and tensile forces that may occur during pile extraction.

[0062] Secondly, full penetration welding is a permanent connection method that achieves a strong connection by completely melting and fusing the contact surfaces of the bracket 11 and the pile. This welding technique ensures that there is no gap between the bracket 11 and the pile, providing extremely high structural strength and stability. Full penetration welding is suitable for applications requiring extremely high connection strength, as it ensures that the connection will not break or loosen under heavy loads. In addition, appropriate post-weld treatment of the connection, such as polishing and anti-corrosion treatment, can further enhance the durability and corrosion resistance of the connection.

[0063] Whether using high-strength bolts or full-penetration welding, both methods ensure that the corbel 11 is securely fixed to the target pile, providing stable support for the pile extraction device. The choice of connection method depends on specific construction requirements, cost budget, and the desired connection strength and durability. In some cases, a combination of these two methods may be used to leverage their respective advantages, ensuring a secure and reliable connection between the corbel 11 and the pile.

[0064] The jack 3 is placed on the support platform 1 and is used to apply an upward thrust to the target pipe pile.

[0065] In some embodiments, the jack 3 is one of a hydraulic jack, a screw jack, a rack jack, a separate jack, a synchronous jack, and a self-locking jack.

[0066] Specifically, in the pipe pile extraction device, the main function of the jack 3 is to generate a strong upward thrust to overcome the friction and adhesion of the soil on the pipe pile, thereby achieving effective extraction of the pipe pile. The selection of the jack 3 is crucial depending on the different construction environments and requirements. The following are several types of jacks 3 commonly used in pipe pile extraction devices:

[0067] Hydraulic jacks are popular for their ease of operation and high thrust. By transmitting pressure through a hydraulic system, hydraulic jacks can precisely control the thrust, making them suitable for applications requiring precise operation and high thrust. Furthermore, the hydraulic jack's thrust speed can be controlled by adjusting the hydraulic flow, which helps protect the pile from sudden forces.

[0068] Screw jacks, also known as mechanical jacks, use a rotating screw to achieve thrust. The advantages of this type of jack are its simple structure, ease of maintenance, and ability to provide a stable and continuous thrust. Screw jacks are ideal for applications where space is limited or where slow and even thrusting is required.

[0069] Rack jacks use the mechanical advantage of a rack and pinion to amplify force output, making them suitable for applications requiring fast and powerful thrust. Both the thrust and speed of this type of jack can be adjusted by adjusting the gear ratio, making it very useful in certain specific applications.

[0070] The characteristic of the split jack is that its power source (such as a hydraulic pump) and the pushing part can be separated, which makes it possible to operate in confined or difficult-to-access areas. The split design also makes it easy to maintain and replace the various parts of the jack.

[0071] Synchronous jacks enable the simultaneous operation of multiple jacks, which is crucial for applications requiring uniform loading. By precisely controlling the force and speed of each jack, synchronized jacks ensure smooth load movement, avoiding damage caused by uneven force distribution.

[0072] Self-locking jacks have the ability to automatically lock during the jacking process. This is very useful in situations where the jacking force needs to be maintained for a long time or where loosening may occur during the jacking process. The self-locking function ensures the continuous and stable jacking force, improving the safety of the operation.

[0073] Each type of jack has its unique advantages and applicable scenarios. Construction units can choose the most suitable type of jack according to specific construction requirements and conditions to ensure the efficiency and safety of pile pulling operations.

[0074] In order to improve the safety of the pile pulling device, a safety locking mechanism is specially designed in some embodiments. The safety locking mechanism is arranged between the jack 3 and the push steel plate 4, and is used to lock the jack 3 during the pile pulling process to prevent the jack 3 from retreating due to unexpected circumstances.

[0075] Specifically, the primary function of the safety locking mechanism is to lock the jack 3 during the pile extraction process, preventing it from retracting due to unexpected circumstances, such as a sudden release of force or equipment failure. Such retraction could disrupt construction, damage equipment, and even threaten the safety of construction workers. Therefore, the design of the safety locking mechanism is crucial, providing an additional layer of protection to ensure that the jack 3 remains in its operating position even during a sudden drop in pressure or other adverse conditions.

[0076] This mechanism can be designed in a variety of ways, including but not limited to a mechanical locking device, a hydraulic or pneumatic locking system. A mechanical locking device may include a locking pin or buckle that can be automatically or manually triggered upon detecting an abnormal situation, quickly locking the jack 3. A hydraulic or pneumatic locking system may utilize additional pressure to maintain the position of the jack 3, preventing it from retracting even if the main pressure source fails.

[0077] In practice, the safety locking mechanism should be simple and intuitive to operate so that construction workers can quickly and accurately operate it in an emergency. In addition, the mechanism should be designed with its inherent strength and durability in mind to ensure reliability over long periods of use.

[0078] The jacking steel plate 4 is provided at the top end of the jack 3 and contacts the plurality of inverted corbels 2 , and is used to transmit the jacking force generated by the jack 3 to the target pipe pile.

[0079] In some embodiments, the jacking steel plate 4 is of thickened design, and the thickness is adjusted according to the diameter of the target pipe pile and the required jacking force.

[0080] Specifically, the jacking steel plate 4 is a key component in the pipe pile extraction device for transmitting the jacking force. It is located at the top of the jack 3 and is in direct contact with the multiple inverted corbels 2. This design allows the jacking steel plate 4 to withstand and transmit the entire jacking force generated by the jack 3 to the target pipe pile during the extraction process, thereby achieving an efficient extraction operation.

[0081] The jacking steel plate 4 is designed to be thickened, which takes into account the diameter of the target pile and the required jacking force. The thickened jacking steel plate 4 provides a larger contact area and a stronger load-bearing capacity, and can withstand greater pressure without deformation or damage.

[0082] The thickness of the jacking steel plate 4 is adjusted based on precise calculations of the target pile diameter and the required jacking force. For larger pile diameters or when greater jacking force is required, the thickness of the jacking steel plate 4 is increased accordingly to ensure structural strength and rigidity. This customized design allows the jacking steel plate 4 to adapt to different construction conditions, enhancing its applicability and flexibility.

[0083] In some complex construction scenarios, the thrust generated by the jack 3 alone may not be sufficient to remove deeply buried or difficult-to-move pipe piles. Figure 3 As shown, in some embodiments, the design of the pipe pile extraction device includes a lifting lug structure to assist the crane in pile extraction operations. The lifting lug structure is provided on the target pipe pile and is used to cooperate with the crane hook to achieve stable lifting and extraction operations of the target pipe pile.

[0084] Specifically, a lifting lug structure is designed and installed on the target pile to mate with the crane's hook. This structure is typically constructed from high-strength steel to ensure it can withstand the tensile and compressive forces generated during the lifting process. The lug's precise positioning and design ensure the pile's stability and balance during the lifting process, preventing rotation or displacement during the lift.

[0085] Furthermore, the lifting lug structure of the target pipe pile is designed with anti-slip grooves to increase the friction between the crane hook and the lifting lug structure.

[0086] Specifically, these grooves increase friction between the crane hook and the lifting lug structure, thereby reducing the risk of the hook slipping or accidental unhooking during lifting. The anti-slip groove design takes into account different surface textures and depths to provide sufficient friction while ensuring that it does not cause excessive wear to the hook.

[0087] In order to better illustrate the pipe pile extraction device of the present application, a complete example of the operation of the device is listed below.

[0088] During the installation phase, two brackets are secured to the spaces on either side of the target pile. If there are adjacent piles on either side of the target pile, the brackets are fixed to the adjacent piles. The brackets are secured with high-strength bolts or full-penetration welding to ensure a stable connection. An H-shaped steel bar is placed across and secured between the two brackets to form the operating platform for the jack, also known as the support platform. The jack is placed on the support platform, ensuring that it is positioned correctly so that the thrust is applied vertically upward to the target pile.

[0089] After installation, the extraction phase begins. Multiple inverted corbels are welded to the surface of the target pile. Each inverted corbel is set at the same height above the support platform, and there are two or four of them, symmetrically distributed around the target pile to ensure uniform distribution of the jacking force. A jacking steel plate is placed on the top of the jack so that it contacts the inverted corbel, preparing to transfer the jacking force generated by the jack to the target pile. Operate the jack so that it applies an upward force to the jacking steel plate. This force is transmitted to the inverted corbel through the jacking steel plate and then evenly distributed on the target pile, achieving an upward jacking force. As the jacking force of the jack gradually increases, the target pile will gradually be pulled out of the soil.

[0090] In some cases, it may not be possible to completely remove a pile using a jack alone, especially when the pile is deeply buried or in particularly hard soil conditions. In such cases, a pile extraction device can be used in conjunction with a crane. Install a lifting lug structure on the target pile, operate the crane, and connect the hook to the lifting lug structure on the pile. Ensure that the connection is secure enough to withstand the tensile forces during extraction. While the jack applies thrust, operate the crane to slowly lift the pile to assist the jack's thrust. This is done until the pile is completely free of the soil and can be safely placed on the ground.

[0091] In summary, the disclosed embodiment provides a pipe pile extraction device, which includes a stable support platform, which is fixed to the space on both sides of the target pipe pile by two bull legs to form an operating base. A jack is installed above the platform, and the jacking force is evenly transmitted to the target pipe pile through a jacking steel plate that contacts a plurality of inverted bull legs. The jacking steel plate adopts a thickened design, and its thickness is adjusted according to the diameter of the pipe pile and the required jacking force to improve the load-bearing capacity. In addition, the device also includes a lifting ear structure, which cooperates with the crane hook to enhance the lifting stability. The lifting ear structure is designed with anti-slip grooves to increase friction. In order to prevent the jack from retreating due to unexpected circumstances, the device is also provided with a safety locking mechanism. This technical solution achieves safe and efficient extraction of pipe piles through carefully designed components and structures.

[0092] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed herein shall be covered by the claims of this disclosure.

Claims

1. A pipe pile removal device, characterized in that: include: A support platform, the two ends of which are respectively fixed to the spaces on both sides of the target pipe pile to form a stable operating base; A plurality of inverted corbels, each of which is welded to the surface of the target pipe pile and each of which is arranged at the same height above the support platform; a jack, placed on the support platform, for applying an upward thrust to the target pipe pile; A jacking steel plate is provided at the top end of the jack and contacts the plurality of inverted corbels, and is used for transmitting the jacking force generated by the jack to the target pipe pile.

2. The pipe pile removal device according to claim 1, characterized in that: The support platform comprises: Two brackets are respectively fixed on the spaces on both sides of the target pile; An H-shaped steel spans and is fixed on the two corbels to form an operating platform for the jack.

3. The pipe pile removal device according to claim 2, characterized in that: Adjacent pipe piles are arranged on both sides of the target pipe pile, and the target pipe pile and the adjacent pipe piles are arranged in a straight line; the two corbels are respectively fixed on the adjacent pipe piles on both sides.

4. The pipe pile removal device according to claim 1, characterized in that: The number of the multiple inverted corbels is two or four, and they are symmetrically distributed around the target pipe pile to ensure uniform distribution of the jacking force.

5. The pipe pile removal device according to claim 1, characterized in that: The bracket is fixed to the target pipe pile by high-strength bolts or full-penetration welding.

6. The pipe pile removal device according to claim 1, characterized in that: The jack is one of a hydraulic jack, a screw jack, a rack jack, a separate jack, a synchronous jack and a self-locking jack.

7. The pipe pile removal device according to claim 1, characterized in that: The jacking steel plate is designed to be thickened, and the thickness is adjusted according to the diameter of the target pipe pile and the required jacking force.

8. The pipe pile removal device according to claim 1, characterized in that: Also includes a lug structure; The lifting lug structure is provided on the target pipe pile and is used to cooperate with a crane hook to achieve stable lifting and removal operations of the target pipe pile.

9. The pipe pile removal device according to claim 8, characterized in that: The lifting lug structure of the target pipe pile is designed with anti-slip grooves to increase the friction between the crane hook and the lifting lug structure.

10. The pipe pile removal device according to claim 1, characterized in that: It also includes a safety locking mechanism, which is arranged between the jack and the push steel plate and is used to lock the jack during the pile pulling process to prevent the jack from retreating due to unexpected circumstances.

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