Pile dismounting equipment

Abstract

The utility model discloses pile dismounting equipment which comprises a dismounting and hoisting platform, a vibratory hammer, a clamping device and a fluid jetting device, the vibratory hammer is connected with the dismounting and hoisting platform, and the output end of the vibratory hammer is connected with the top end of a cylindrical pile; the clamping device is connected with the dismounting and hoisting platform and is used for clamping the cylindrical pile; the fluid jetting device is connected with the dismounting and hoisting platform and movably arranged on the dismounting and hoisting platform in the axial direction of the cylindrical pile, and the fluid jetting device is used for jetting fluid to break through soil around the cylindrical pile. According to the pile disassembling equipment, the vibratory hammer is arranged at the top of the cylindrical pile to vibrate and hit the cylindrical pile, and the fluid jetting device is arranged to impact soil around the cylindrical pile, so that the friction force between a seabed and the cylindrical pile can be reduced, and the cylindrical pile can be conveniently pulled out of the seabed; the dismounting efficiency of the cylindrical pile is improved, the dismounting cost of the cylindrical pile is reduced, and the safety in the dismounting process of the cylindrical pile is improved.

Description

Technical Field

[0001] The utility model relates to the field of offshore building foundation removal, in particular to a pile removal device. Background Art

[0002] The monopile foundation is one of the main structural types of offshore wind turbine foundations. During the operation of an offshore wind farm, if the monopile foundation is damaged or has reached its design deadline, it is necessary to dismantle the monopile foundation.

[0003] The removal of offshore wind turbines is not much different from their installation, and they can be removed one by one through offshore wind turbine installation vessels. However, for offshore wind turbine foundations, since the pile hammer and other devices are used to penetrate the seabed through power during the construction phase, the foundation soil around the foundation may weaken or strengthen (depending on the geological conditions) under the action of long-term cyclic loads, and the pile hammer can only solve the installation problem. How to remove the offshore wind turbine foundation in the future, especially how to remove the part below the seabed, will be an urgent problem to be solved.

[0004] At present, based on the experience of the offshore oil and gas / bridge industries and considering the requirements for navigation, the part below the mud surface is usually cut by cutting the piles. For example, the underwater dredging device first cleans the soil around the piles 3m below the mud surface, and then the divers cut the piles underwater 3m below the mud surface. The whole process is cumbersome and time-consuming, and the divers have a high risk of long-term underwater operations. Therefore, it is urgent to develop an economical and fast offshore wind power single pile foundation removal device. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a vehicle frame that can reduce the friction between the seabed and the cylindrical pile, so that the cylindrical pile can be pulled out from the seabed more conveniently, improve the removal efficiency of the cylindrical pile, reduce the removal cost of the cylindrical pile, and improve the safety during the removal of the cylindrical pile.

[0006] According to the first aspect of the utility model, the pile removal equipment for cylindrical piles includes: a removal and lifting platform; a vibrating hammer, which is connected to the removal and lifting platform, and the output end of the vibrating hammer is connected to the top of the cylindrical pile; a clamping device, which is connected to the removal and lifting platform and is used to clamp the cylindrical pile; a fluid injection device, which is connected to the removal and lifting platform and is movably arranged on the removal and lifting platform along the axial direction of the cylindrical pile, and the fluid injection device is used to inject fluid to break through the soil around the cylindrical pile.

[0007] According to the pile removal equipment of the utility model, by arranging a vibrating hammer at the top of the cylindrical pile to vibrate the cylindrical pile, the torque applied by the vibrating hammer to the cylindrical pile can be larger, so that the cylindrical pile can produce a larger shaking amplitude, the soil around the cylindrical pile can be vibrated and dispersed, the anchoring space of the cylindrical pile on the seabed can be expanded, and the friction between the seabed and the cylindrical pile can be reduced, so that the cylindrical pile can be pulled out of the seabed more conveniently; by arranging a fluid injection device to impact the soil around the cylindrical pile, the contact area between the seabed and the cylindrical pile can be reduced, and the friction between the seabed and the cylindrical pile can be reduced, so that the cylindrical pile can be pulled out of the seabed more conveniently, the removal efficiency of the cylindrical pile can be improved, and the removal cost of the cylindrical pile can be reduced; moreover, the operating personnel do not need to dive into the sea water to cut off the cylindrical pile, which can reduce the working intensity of the operating personnel, reduce the risks to the operating personnel during the removal of the cylindrical pile, and improve the safety during the removal of the cylindrical pile.

[0008] According to some embodiments of the utility model, the fluid injection device includes a flow guide tube and a retaining frame, and the injection end of the flow guide tube is fixed on the retaining frame; the retaining frame is sleeved on the radial outer side of the cylindrical pile to fix the injection end of the flow guide tube relative to the cylindrical pile in the radial direction of the cylindrical pile; or, the retaining frame is embedded in the inner side of the cylindrical pile to fix the injection end of the flow guide tube relative to the cylindrical pile in the radial direction of the cylindrical pile.

[0009] In some embodiments of the present invention, the spraying direction of the guide pipe is inclined toward the cylindrical pile.

[0010] In some embodiments of the utility model, the retaining frame includes a diverter, the diverter defines a diverter channel, a plurality of injection holes are formed on the diverter, each injection hole is connected to the diverter channel, and the opening direction of the injection hole is toward the cylindrical pile, and the guide pipe is connected to and connected to the diverter.

[0011] In some embodiments of the present invention, a plurality of the flow guide tubes are connected to each of the retaining frames.

[0012] In some embodiments of the present invention, the retaining frame is embedded in the inner side of the cylindrical pile, the retaining frame includes a frame body and an anti-dumping portion, the guide tube is connected to the frame body, the outer diameter of the frame body is smaller than the inner diameter of the cylindrical pile, the anti-dumping portion extends along the axial direction of the frame body, and one end of the anti-dumping portion is connected to the frame body, and the other end of the anti-dumping portion is used to stop against the inner wall of the cylindrical pile to relatively fix the injection end of the guide tube relative to the cylindrical pile in the radial direction of the cylindrical pile.

[0013] According to some specific embodiments of the present invention, the frame body is ring-shaped.

[0014] According to some specific embodiments of the present invention, the outer diameter of the anti-dumping part is equal to the outer diameter of the frame body, and the ratio of the axial height of the anti-dumping part to the diameter of the anti-dumping part is not less than 0.3 and not greater than 2; or, the anti-dumping part can be rod-shaped, the anti-dumping part is connected to the radial outer edge of the frame body, and the ratio of the axial height of the anti-dumping part to the outer diameter of the frame body is not less than 0.3 and not greater than 2.

[0015] According to some optional embodiments of the present invention, the clamping device is connected to the output end of the vibration hammer.

[0016] According to some optional embodiments of the utility model, the removal and lifting platform is provided with a lifting lug, and the pile removal equipment further comprises: a crane, and a lifting rope of the crane is connected to the lifting lug to lift the cylindrical pile out of the seabed.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a pile removal device according to some embodiments of the utility model when removing a cylindrical pile;

[0020] Figure 2 yes Figure 1 A schematic diagram of a partial structure of a pile removal device;

[0021] Figure 3 yes Figure 1 A schematic diagram of the structure of two fluid injection devices;

[0022] Figure 4 yes Figure 1 Schematic diagram of the pile removal equipment performing preliminary destruction of the soil around the cylindrical pile;

[0023] Figure 5 yes Figure 1 Schematic diagram of the pile removal equipment when the soil around the cylindrical pile is destroyed to half;

[0024] Figure 6 yes Figure 1 Schematic diagram of the pile removal equipment completely destroying the soil around the cylindrical pile.

[0025] Reference numerals:

[0026] 100. Pile removal equipment;

[0027] 1. Crane; 11. Lifting rope;

[0028] 2. Vibratory hammer;

[0029] 3. Clamping device; 31. Clamping arm;

[0030] 4. Fluid injection device; 41. Guide tube; 42. Retaining frame; 421. Diverter; 4211. Injection hole; 422. Frame body;

[0031] 600, cylindrical pile;

[0032] 700. Ships;

[0033] 800. Seabed. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] The following describes a pile removal device 100 for a cylindrical pile 600 according to an embodiment of the present invention with reference to the accompanying drawings.

[0036] Reference Figure 1-Figure 6 According to the pile removal device 100 of the cylindrical pile 600 of the first embodiment of the utility model, the cylindrical pile 600 is cylindrical, and the cylindrical pile 600 is inserted into the seabed 800, that is, the cylindrical pile 600 is anchored in the seabed 800 by the friction between itself and the seabed 800. For example, the cylindrical pile 600 can be used as the building foundation of an offshore building; specifically, the cylindrical pile 600 can be used as the building foundation of an offshore wind power system; the cylindrical pile 600 can also be used as the building foundation of an offshore oil well production system.

[0037] The pile removal equipment 100 includes: a removal and lifting platform, a vibrating hammer 2, a clamping device 3 and a fluid injection device 4. The vibrating hammer 2 is connected to the removal and lifting platform, and the output end of the vibrating hammer 2 is connected to the top of the cylindrical pile 600; for example, the vibrating hammer 2 can be a hydraulic vibrating hammer 2, the vibrating hammer 2 can also be a cycloidal vibrating hammer, the vibrating hammer 2 can also be a hammer vibrating hammer, and the vibrating hammer 2 can be a rotor vibrating hammer. For example, a lifting lug is provided on the removal and lifting platform, and the pile removal equipment 100 also includes: a crane 1, and a lifting rope 11 of the crane 1 is connected to the lifting lug to lift the cylindrical pile 600 out of the seabed 800. For example, the crane 1 can be provided on a ship 700.

[0038] The clamping device 3 is connected to the dismantling and lifting platform, and the clamping device 3 is used to clamp the cylindrical pile 600; for example, the clamping device 3 may include a clamping platform, a plurality of clamping arms 31, and a clamping arm 31 driving member, each clamping arm 31 can be movably arranged on the clamping platform, and a clamping space is defined between the plurality of clamping arms 31, and the output end of the clamping arm 31 driving member is connected to the clamping arm 31 to drive the plurality of clamping arms 31 to move to reduce the clamping space to clamp the cylindrical pile 600. Specifically, the clamping arm 31 driving member may be a motor, a cylinder, or an oil cylinder. Specifically, the clamping space may be annular, a portion of the plurality of clamping arms 31 is arranged outside the cylindrical pile 600, and a portion of the plurality of clamping arms 31 is arranged inside the cylindrical pile 600; the clamping space may also be circular, and all the clamping arms 31 are arranged radially outside the cylindrical pile 600.

[0039] The fluid injection device 4 is connected to the dismantling and lifting platform, and the fluid injection device 4 is movably arranged on the dismantling and lifting platform along the axial direction of the cylindrical pile 600. The fluid injection device 4 is used to inject fluid to break the soil around the cylindrical pile 600. For example, the fluid injection device can destroy the soil around the cylindrical pile 600 by injecting gas, and the fluid injection device 4 can also destroy the soil around the cylindrical pile 600 by injecting liquid.

[0040] When it is necessary to dismantle the cylindrical pile 600, the clamping device 3 can be used to clamp the cylindrical pile 600 first, and the cylindrical pile 600 can be connected and fixed to the dismantling and lifting platform. The output end of the vibrating hammer 2 is connected to the top of the cylindrical pile 600, and the injection end of the fluid injection device 4 is sunk into the sea water. The injection end of the fluid injection device 4 is placed at the cement junction of the cylindrical pile 600. Then, the vibrating hammer 2 is started to vibrate the cylindrical pile 600, and the fluid injection device 4 is started to destroy the soil around the cylindrical pile 600, and the dismantling and lifting platform is lifted upward at the same time until the cylindrical pile 600 is pulled out of the seabed 800.

[0041] By setting the vibrating hammer 2 at the top of the cylindrical pile 600 to vibrate the cylindrical pile 600, the torque applied by the vibrating hammer 2 to the cylindrical pile 600 can be larger, so that the cylindrical pile 600 can produce a larger shaking amplitude, and the soil around the cylindrical pile 600 can be vibrated and dispersed, and the anchoring space of the seabed 800 for anchoring the cylindrical pile 600 is expanded, and the friction between the seabed 800 and the cylindrical pile 600 is reduced, so that the cylindrical pile 600 can be pulled out of the seabed 800 more conveniently.

[0042] By providing a fluid injection device 4 to impact the soil around the cylindrical pile 600, the contact area between the seabed 800 and the cylindrical pile 600 can be reduced, and the friction between the seabed 800 and the cylindrical pile 600 can be reduced, so that the cylindrical pile 600 can be pulled out of the seabed 800 more conveniently, thereby improving the removal efficiency of the cylindrical pile 600 and reducing the removal cost of the cylindrical pile 600.

[0043] Moreover, the operators do not need to dive into the sea water to cut off the cylindrical pile 600, which can reduce the working intensity of the operators, reduce the risks to the operators during the removal of the cylindrical pile 600, and improve the safety during the removal of the cylindrical pile 600.

[0044] For example, during the process of dismantling the cylindrical pile 600 , the fluid injection device 4 can be driven to move downward at a certain speed, so that the fluid injection device 4 can cause greater damage to the soil around the cylindrical pile 600 .

[0045] Reference Figure 1-Figure 6 According to some embodiments of the present invention, the fluid injection device 4 includes a flow guide tube 41 and a holder 42, and the injection end of the flow guide tube 41 is fixed on the holder 42; for example, the fluid injection device 4 may also include a fluid pressurizing member, which is connected to the flow guide tube 41 and is used to deliver high-pressure gas into the flow guide tube 41. Specifically, the fluid pressurizing member may be a pneumatic pump, or a hydraulic pump.

[0046] The retaining frame 42 is sleeved on the radial outer side of the cylindrical pile 600 to fix the injection end of the guide tube 41 relative to the cylindrical pile 600 in the radial direction of the cylindrical pile 600; or, the retaining frame 42 is embedded in the inner side of the cylindrical pile 600 to fix the injection end of the guide tube 41 relative to the cylindrical pile 600 in the radial direction of the cylindrical pile 600.

[0047] By setting a retaining frame 42 to fix the injection end of the guide tube 41 relative to the cylindrical pile 600, the injection end of the guide tube 41 can be prevented from moving in a direction away from the cylindrical pile 600 under the reaction of the fluid, so that the gas ejected by the fluid injection device 4 can reliably rush toward the soil near the cylindrical pile 600, so that the fluid injection device 4 can reliably destroy the soil near the cylindrical pile 600, thereby improving the reliability of the pile removal equipment 100.

[0048] For example, there may be two fluid injection devices 4, one fluid injection device 4 is arranged on the radially outer side of the cylindrical pile 600, and the other fluid injection device 4 is arranged in the cavity of the cylindrical pile 600; the fluid injection device 4 arranged on the radially outer side of the cylindrical pile 600 is a first fluid injection device, and the retaining frame 42 of the first fluid injection device may be annular; the fluid injection device 4 arranged in the cavity of the cylindrical pile 600 is a second fluid injection device, and the retaining frame 42 of the second fluid injection device may be annular, or the retaining frame 42 of the second fluid injection device may also be disc-shaped. The two fluid injection devices 4 cooperate with each other, so that the pile removal equipment 100 can better remove the soil on both sides of the cylindrical pile 600, better reduce the friction between the cylindrical pile 600 and the seabed 800, and improve the removal efficiency of the pile removal equipment 100.

[0049] Reference Figure 1-Figure 6In some embodiments of the utility model, the spraying direction of the flow guide pipe 41 is inclined toward the cylindrical pile 600. When the fluid is sprayed out from the flow guide pipe 41, the fluid can first blow onto the cylindrical pile 600, and then flow downward along the cylindrical pile 600, thereby impacting the junction between the cylindrical pile 600 and the seabed 800. Under the action of the vibrating hammer 2, the soil near the cylindrical pile 600 is relatively loose, and a certain gap can be generated at the junction between the cylindrical pile 600 and the seabed 800, so that the fluid can easily flush the soil around the cylindrical pile 600, flush the soil around the cylindrical pile 600 away from the cylindrical pile 600, reduce the soil in contact with the cylindrical pile 600, and reduce the friction between the cylindrical pile 600 and the seabed 800.

[0050] Reference Figure 3 In some embodiments of the utility model, the retaining frame 42 includes a diverter 421, which defines a diverter channel. A plurality of injection holes 4211 are formed on the diverter 421, each of which is connected to the diverter channel, and the opening direction of the injection hole 4211 is toward the cylindrical pile 600, and the guide pipe 41 is connected and connected to the diverter 421.

[0051] It needs to be explained that the “plurality” mentioned in the present invention means “two” or “more than two”.

[0052] In this way, the soil around the cylindrical pile 600 can be removed more evenly, and there is no need to move the guide tube 41 around the cylindrical pile 600 to evenly remove the soil around the cylindrical pile 600. The efficiency of the fluid injection device 4 in destroying the soil around the cylindrical pile 600 can be improved, and the demolition efficiency of the pile removal equipment 100 can be improved.

[0053] Reference Figure 1 , Figure 2 , Figure 4-Figure 6 In some embodiments of the present invention, a plurality of guide tubes 41 are connected to the retaining frame 42. In this way, the soil around the cylindrical pile 600 can be removed more evenly, and the guide tube 41 does not need to be moved around the circumference of the cylindrical pile 600 to evenly remove the soil around the cylindrical pile 600. The efficiency of the fluid injection device 4 in destroying the soil around the cylindrical pile 600 can be improved, and the removal efficiency of the pile removal device 100 can be improved.

[0054] For example, refer to Figure 2-Figure 6In some specific embodiments of the utility model, the retainer 42 includes a flow divider 421, the flow divider 421 defines a flow divider channel, a plurality of injection holes 4211 are formed on the flow divider 421, each injection hole 4211 is connected to the flow divider channel, and the opening direction of the injection hole 4211 is toward the cylindrical pile 600, the guide tube 41 is connected and connected to the flow divider 421, and a plurality of guide tubes 41 are connected to the retainer 42, and each guide tube 41 is connected to the flow divider channel. In this way, the pressure of the fluid ejected from the injection hole 4211 can be increased, so that the fluid ejected from the injection hole 4211 can more reliably destroy the soil around the cylindrical pile 600, thereby improving the reliability of the fluid ejection device 4.

[0055] Reference Figure 4-Figure 6 In some embodiments of the utility model, the retaining frame 42 is embedded in the inner side of the cylindrical pile 600, and the retaining frame 42 includes a frame body 422 and an anti-dumping portion. The guide tube 41 is connected to the frame body 422. The outer diameter of the frame body 422 is smaller than the inner diameter of the cylindrical pile 600. The anti-dumping portion extends along the axial direction of the frame body 422, and one end of the anti-dumping portion is connected to the frame body 422, and the other end of the anti-dumping portion is used to stop the inner wall of the cylindrical pile 600, so as to fix the injection end of the guide tube 41 relative to the cylindrical pile 600 in the radial direction of the cylindrical pile 600.

[0056] By providing an anti-dumping portion, when the fluid is ejected from the guide tube 41 from the injection end, the force acting on the guide tube 41 can be transmitted to the finger frame body 422, and the frame body 422 tends to flip due to the force. The anti-dumping portion can prevent the frame body 422 from flipping by stopping the cylindrical pile 600, so that the frame body 422 can be reliably positioned with the cylindrical pile 600 in the axial direction, so that the injection direction of the guide tube 41 and the axial direction of the cylindrical pile 600 remain stable, so that the fluid ejected from the guide tube 41 can be reliably blown to the soil around the cylindrical pile 600, thereby improving the reliability of the fluid injection device 4.

[0057] Reference Figure 1-Figure 6 According to some specific embodiments of the present invention, the frame body 422 is annular. When the soil inside the cylindrical pile 600 is destroyed, the destroyed soil can be discharged into the upper space of the fluid injection device 4 through the annular opening of the frame body 422 and discharged from the top of the cylindrical pile 600, preventing the destroyed soil from being deposited around the cylindrical pile 600, so that the fluid injection device 4 can reliably remove the soil around the cylindrical pile 600 and reduce the friction between the cylindrical pile 600 and the seabed 800.

[0058] According to some specific embodiments of the present invention, the outer diameter of the anti-dumping portion is equal to the outer diameter of the frame body 422, and the ratio of the axial height of the anti-dumping portion to the diameter of the anti-dumping portion is not less than 0.3 and not more than 2. For example, the ratio of the axial height of the anti-dumping portion to the diameter of the anti-dumping portion can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, or 2.0.

[0059] The outer diameter of the anti-dumping part is equal to the outer diameter of the frame body 422, and the anti-dumping part can be a hollow cylinder or a solid column. In this way, the anti-dumping part can prevent the frame body 422 from turning over in all directions, thereby improving the reliability of the fluid injection device 4.

[0060] The smaller the ratio of the axial height of the anti-dumping part to the diameter of the anti-dumping part, the lower the height of the anti-dumping part, the less material used for the anti-dumping part, and the lower the production cost of the anti-dumping part; the larger the ratio of the axial height of the anti-dumping part to the diameter of the anti-dumping part, the better the anti-flipping effect of the anti-dumping part on the main body. By setting the ratio of the axial height of the anti-dumping part to the diameter of the anti-dumping part to be not less than 0.3 and not more than 2, the production cost and the anti-flipping effect of the anti-dumping part can be taken into account, and the overall performance of the retainer 42 can be improved.

[0061] According to some specific embodiments of the utility model, the anti-dumping part can be rod-shaped, and the anti-dumping part is connected to the radial outer edge of the frame body 422; this can reduce the production cost of the anti-dumping part, reduce the production cost of the retaining frame 42, and reduce the production cost of the fluid injection device 4.

[0062] For example, the anti-dumping portions may be multiple and spaced apart along the radial outer edge of the frame body 422 , so that the retaining frame 42 can have a better anti-flipping effect at multiple angles.

[0063] The ratio of the axial height of the anti-dumping portion to the outer diameter of the frame body 422 is not less than 0.3 and not more than 2. For example, the ratio of the axial height of the anti-dumping portion to the outer diameter of the frame body 422 can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0.

[0064] The smaller the ratio of the axial height of the anti-dumping part to the diameter of the anti-dumping part, the lower the height of the anti-dumping part, the less material used for the anti-dumping part, and the lower the production cost of the anti-dumping part; the larger the ratio of the axial height of the anti-dumping part to the diameter of the anti-dumping part, the better the anti-flipping effect of the anti-dumping part on the main body. By setting the ratio of the axial height of the anti-dumping part to the diameter of the anti-dumping part to be not less than 0.3 and not more than 2, the production cost and the anti-flipping effect of the anti-dumping part can be taken into account, and the overall performance of the retainer 42 can be improved.

[0065] Reference Figure 1 , Figure 2 , Figure 4-Figure 6 According to some optional embodiments of the present invention, the clamping device 3 is connected to the output end of the vibrating hammer 2. In this way, it is not necessary to set up an additional structure for connecting the vibrating hammer 2 and the cylindrical pile 600, so that the overall structure of the pile removal device 100 is relatively simple and compact, and the disassembly and assembly of the pile removal device 100 and the cylindrical pile 600 is relatively simple, thereby improving the removal efficiency of the pile removal device 100.

[0066] Specifically, refer to Figure 1 , Figure 2 , Figure 4-Figure 6 The lifting lug can be connected to a surface of the vibrating hammer 2 away from the output end thereof, that is, the vibrating hammer 2 can serve as a lifting platform for the pile removing device 100, which makes the overall structure of the pile removing device 100 simpler and more compact, and reduces the production cost of the pile removing device 100.

[0067] In the description of the present utility model, it is to be understood that relational terms such as "first" and "second" are merely 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. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pile removal device for cylindrical piles, characterized in that: include: Dismantle the lifting platform; A vibrating hammer, wherein the vibrating hammer is connected to the dismantling and hanging platform, and an output end of the vibrating hammer is connected to the top end of the cylindrical pile; A clamping device connected to the dismantling and lifting platform and used for clamping the cylindrical pile; A fluid injection device is connected to the dismantling and lifting platform and is movably arranged on the dismantling and lifting platform along the axial direction of the cylindrical pile. The fluid injection device is used for injecting fluid to break the soil around the cylindrical pile.

2. The cylindrical pile removal equipment according to claim 1, characterized in that: The fluid injection device comprises a guide tube and a retaining frame, and the injection end of the guide tube is fixed on the retaining frame; The retaining frame is sleeved on the radial outer side of the cylindrical pile to fix the injection end of the guide tube relative to the cylindrical pile in the radial direction of the cylindrical pile; or, the retaining frame is embedded in the inner side of the cylindrical pile to fix the injection end of the guide tube relative to the cylindrical pile in the radial direction of the cylindrical pile.

3. The cylindrical pile removal equipment according to claim 2, characterized in that: The spraying direction of the guide pipe is inclined toward the cylindrical pile.

4. The pile removal equipment for cylindrical piles according to claim 2, characterized in that: The retaining frame includes a flow divider, which defines a flow divider channel. A plurality of injection holes are formed on the flow divider, each of which is connected to the flow divider channel, and the opening direction of the injection holes faces the cylindrical pile. The guide pipe is connected to and communicates with the flow divider.

5. The cylindrical pile removal equipment according to claim 2, characterized in that: A plurality of flow guide pipes are connected to each of the retaining frames.

6. The cylindrical pile removal equipment according to claim 2, characterized in that: The retaining frame is embedded in the inner side of the cylindrical pile, and the retaining frame includes a frame body and an anti-dumping portion. The guide tube is connected to the frame body. The outer diameter of the frame body is smaller than the inner diameter of the cylindrical pile. The anti-dumping portion extends along the axial direction of the frame body, and one end of the anti-dumping portion is connected to the frame body, and the other end of the anti-dumping portion is used to stop against the inner wall of the cylindrical pile to relatively fix the injection end of the guide tube relative to the cylindrical pile in the radial direction of the cylindrical pile.

7. The cylindrical pile removal equipment according to claim 6, characterized in that: The frame body is annular.

8. The pile removal equipment for cylindrical piles according to claim 6, characterized in that: The outer diameter of the anti-dumping portion is equal to the outer diameter of the frame body, and the ratio of the axial height of the anti-dumping portion to the diameter of the anti-dumping portion is not less than 0.3 and not more than 2; Alternatively, the anti-dumping portion may be rod-shaped, connected to the radial outer edge of the frame body, and the ratio of the axial height of the anti-dumping portion to the outer diameter of the frame body is not less than 0.3 and not more than 2.

9. The cylindrical pile removal equipment according to any one of claims 1 to 8, characterized in that: The clamping device is connected to the output end of the vibration hammer.

10. The cylindrical pile removal equipment according to any one of claims 1 to 8, characterized in that: The removal and lifting platform is provided with a lifting lug, and the pile removal equipment further comprises a crane, wherein a lifting rope of the crane is connected to the lifting lug to lift the cylindrical pile out of the seabed.

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