Pile driving method and pile driving device for seabed embedded pile

Abstract

The embodiment of the invention provides a pile driving method and device for a seabed embedded pile. The pile driving method comprises the steps that a pile splicing device is fixed to a pile feeding device; the pile supporting frame is used for moving and turning the main pile and hanging the main pile on the broadside of the floating crane ship; moving and pile turning are conducted on the fixed pile splicing device and the fixed pile conveying device, the pile conveying device and the pile splicing device are fixedly connected to a main pile, pile sinking operation is conducted, and after pile sinking is completed, a vibratory hammer is fixed to the pile conveying device; the vibratory hammer is started, and the main pile is driven to the preset depth position of the seabed by adjusting the piling frequency of the vibratory hammer and the hoisting hook falling speed; and finally, the vibratory hammer, the fixedly-connected pile splicing device and the fixedly-connected pile feeding device are recycled to the floating crane ship. According to the piling method disclosed by the embodiment of the invention, the piling operation of the embedded pile can be carried out by using the vibratory hammer, the piling efficiency is obviously improved, the occurrence of pile slipping is effectively avoided, and the pile pulling operation can be carried out under special conditions.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the field of marine engineering technology, and specifically relate to a pile driving method and a pile driving device for a seabed buried pile. Background Art

[0002] CALM (catenary anchor leg mooring) type single point mooring system or other offshore floating structures are usually moored and fixed by anchor piles. In order to increase the mooring force and reduce the impact on the seabed surface, the anchor pile is an embedded pile structure. The existing technical solutions at home and abroad are to use hydraulic impact hammers to drive piles, and arrange large underwater pile support frames on the seabed to position and ensure the verticality of pile driving. When driving piles, the underwater pile support frame is first lifted to the pile driving position, and the position accuracy is determined before fixing. Then, the anchor pile is driven by divers under underwater command, and then the pile driver with a variable diameter is inserted into the upper end of the anchor pile. Finally, the anchor pile is driven into the seabed using a hydraulic impact hammer. The use of hydraulic impact hammers to drive piles cannot effectively prevent pile slippage. When encountering sea areas with large currents or turbid water, the operation period is long and the verticality cannot be effectively monitored.

[0003] Hydraulic vibratory hammers have the advantages of high pile driving efficiency, preventing pile slippage, and being able to pull piles when needed. However, ordinary pile drivers use a variable diameter structure to be inserted into the anchor pile, leaving a certain gap with the inner wall of the anchor pile and unable to transmit vibration loads. In the industry, there is currently no precedent for using hydraulic vibratory hammers for buried pile driving. Summary of the invention

[0004] The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art and provide a pile driving method and a pile driving device for a submarine buried pile.

[0005] In one aspect, an embodiment of the present disclosure provides a method for driving a subsea buried pile, the method comprising:

[0006] Fixing the first end of the pile receiving device along the length direction to the first end of the pile driving device along the length direction;

[0007] The main pile is hoisted and translated to a first predetermined position and the pile is turned over, and the first end of the main pile after the pile is turned over is hung on the pile support frame on the side of the floating crane along its length direction; and the fixed pile connector and the pile driver are hoisted and translated to a second predetermined position and the pile is turned over, and the second end of the pile connector after the pile is turned over along its length direction is inserted into the first end of the main pile, and the first end face of the pile driver is abutted against the first end face of the main pile, and the pile driver is maintained in a hoisted state;

[0008] The pile driver is connected to the main pile through the pile connector;

[0009] Open the limiting structure of the pile support frame, and move the pile driver by hoisting so that the main pile can be sunk under the gravity of the pile driver, the pile receiver and the main pile;

[0010] When the pile driving is completed, the hoisting state of the pile driver is released, and a vibrating hammer is fixed to the second end of the pile driver along the length direction thereof;

[0011] The vibratory hammer is started, and the main pile is driven into the seabed to a preset depth by adjusting the piling frequency of the vibratory hammer and the speed of the hoisting hook;

[0012] The vibrating hammer, the fixedly connected pile receiver and the pile driver are recovered to the floating crane vessel.

[0013] Optionally, the pile connector includes a pile connector body, a movable guide, a fixed guide and a driving unit for driving the movable guide to move, the fixed guide and the movable guide are formed with a plurality of pairs of guide grooves with inclined bottoms, each pair of the guide grooves is embedded with a tensioning plate, the tensioning plate is slidably matched with the bottom of the guide groove, and the tensioning plate is provided with a top block;

[0014] The method of connecting the pile driver and the main pile into one body through the pile connector includes:

[0015] The driving unit drives the movable guide to move toward the fixed guide, and the tensioning plate is squeezed by the inclined guide groove bottoms on both sides and moves outward in the guide groove, and the ejecting block is ejected outward to the inner wall of the main pile to connect the pile driver and the main pile into one.

[0016] Optionally, the step of recovering the vibratory hammer, the fixedly connected pile receiver and the pile driver to the floating crane vessel comprises:

[0017] The driving unit drives the movable guide to move in a direction away from the fixed guide, the tensioning plate moves inward in the guide groove, and the top block contracts inward along the radial direction of the pile connector body until it is separated from the inner wall of the main pile;

[0018] The vibrating hammer, the fixedly connected pile receiver and the pile driver are hoisted and recovered to the floating crane vessel.

[0019] Optionally, the pile connector is configured as a hydraulic pile connector.

[0020] Optionally, the limiting structure of the pile support frame includes a frame body provided with a through channel and a support assembly connected to the frame body, and a plurality of ear plates are distributed along the circumference of the outer surface of the first end of the main pile; wherein the through channel of the frame body is used to pass the main pile, and the support assembly is used to support the corresponding ear plates;

[0021] The support assembly includes a plurality of support members and a plurality of telescopic mechanisms corresponding to the plurality of support members, wherein the telescopic mechanisms drive the support members to reciprocate between a first position supporting the ear plate and a second position away from the ear plate.

[0022] Optionally, the hoisting and translating the main pile to the first predetermined position and turning the pile includes:

[0023] The main pile is hoisted and translated to a first predetermined position, the anchor chain is connected, and the main pile is turned over.

[0024] Optionally, central axes of the pile supporting frame, the fixedly connected pile receiver and the pile driver coincide with each other and are perpendicular to the seabed plane.

[0025] Optionally, before hoisting and translating the main pile to the first predetermined position and turning the pile, the piling method further includes:

[0026] The pile support frame is fixed to the side of the floating crane vessel for hanging the main pile.

[0027] On the other hand, an embodiment of the present disclosure provides a pile driving device for a submarine buried pile, the pile driving device comprising a pile receiver, a pile driver and a vibrating hammer, and the pile driving device adopts the pile driving method described above.

[0028] The pile driving method and pile driving device for seabed embedded piles of the embodiments of the present disclosure can avoid the use of an underwater pile support frame, and can also realize embedded pile driving using a vibrating hammer, which significantly improves the pile driving efficiency, effectively avoids the occurrence of pile slippage, and can perform pile pulling operations under special circumstances. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic flowchart of a method for driving a submarine buried pile according to an embodiment of the present disclosure;

[0030] Figure 2 A top view of a pile support frame according to another embodiment of the present disclosure;

[0031] Figure 3 It is an enlarged schematic diagram of a limiting structure of a main pile hung on a pile support frame according to another embodiment of the present disclosure;

[0032] Figure 4 It is a structural schematic diagram of a pile connector according to another embodiment of the present disclosure;

[0033] Figure 5 It is a schematic diagram of the coordination of a vibrating hammer, a pile driver, a pile receiver and a main pile according to another embodiment of the present disclosure;

[0034] Figure 6 This is a schematic diagram of an operation of turning over a main pile according to another embodiment of the present disclosure;

[0035] Figure 7 This is a schematic diagram of an operation of hoisting a fixed pile connector and a pile driver according to another embodiment of the present disclosure;

[0036] Figure 8 It is a schematic diagram of the coordination of a pile driver, a pile connector and a main pile after hoisting according to another embodiment of the present disclosure;

[0037] Fig. 9 It is a schematic diagram of piling in cooperation with a hoisted vibrating hammer, a pile driver, a pile connector and a main pile according to another embodiment of the present disclosure;

[0038] Fig.10 This is a schematic diagram of the structure after piling is completed according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] like Figure 1 As shown, a method for driving a seabed buried pile comprises: S1, fixing a pile support frame to the side of a floating crane vessel for hanging a main pile.

[0041] Specifically, refer to Figure 2 and Figure 3 First, the pile support frame 100 is fixed to the side of the floating crane 200, and the pile support frame fixed to the side of the floating crane 200 is used to hang the main pile 300. When the main pile 300 is hung on the pile support frame 100, the pile support frame 100 can provide fixing and guiding functions for the main pile 300, which is convenient for subsequent piling operations.

[0042] It should be noted that the pile support frame 100 includes a limiting structure, which includes a frame body 110 provided with a through passage and a support assembly 120 connected to the frame body 110, and a plurality of ear plates 310 are distributed along the circumference of the outer surface of the first end of the main pile 300. The through passage of the frame body 110 is used to penetrate the main pile 300, and the support assembly 120 is used to support the corresponding ear plates 310. The support assembly 120 includes a plurality of support members and a plurality of telescopic mechanisms (not shown in the figure) corresponding to the plurality of support members, and the telescopic mechanisms drive the support members to reciprocate between a first position supporting the ear plates 310 and a second position away from the ear plates 310.

[0043] As a specific example, Figure 3As shown, two ear plates 310 are symmetrically arranged at the top of the main pile 300 along the circumferential direction, and corresponding support members are respectively arranged on the frame body 110 on both sides of the through-channel. When the pile support frame 100 is required to limit the position of the main pile 300, the telescopic mechanism drives the support member to the first position, and the support member can be supported on the ear plate 310, so that the main pile 300 is erected on the pile support frame 100. When the pile support frame 100 completes the task of limiting the position of the main pile 300, the telescopic mechanism drives the support member to the second position, and the support member is away from the ear plate 310, so that the main pile 300 is no longer supported on the pile support frame 100. As a specific example, the telescopic mechanism can be set as a hydraulic jack.

[0044] S2, fixing the first end of the pile receiver along the length direction to the first end of the pile driver along the length direction.

[0045] Specifically, refer to Figure 4 and Figure 5 , the pile receiving device 400 is fixedly connected with the pile driving device 500. Figure 4 As shown, the pile connector 400 includes a pile connector body 410, a movable guide (not shown in the figure), a fixed guide (not shown in the figure) and a driving unit 420 for driving the movable guide to move. The fixed guide and the movable guide are formed with a plurality of pairs of guide grooves with inclined bottoms, and each pair of the guide grooves is embedded with a tensioning plate 430, which is slidably matched with the bottom of the guide groove, and the tensioning plate 430 is provided with a top block 431. Figure 5 As shown, the top of the pile receiver 400 is connected to the bottom of the pile driver 500. It is easy to understand that the driving unit 420 at the top of the pile receiver 400 is inserted into the bottom of the pile driver 500, and the pile receiver 400 is connected to the pile driver 500 through a clamp 440 provided at the first end along the length direction thereof. The clamp 440 and the pile driver 500 can be specifically connected by bolts.

[0046] S3, hoisting and translating the main pile to the first predetermined position and turning the pile, and hanging the first end of the main pile after turning the pile along its length direction on the pile support frame on the side of the floating crane. And hoisting and translating the fixed pile receiving device and the pile driver to the second predetermined position and turning the pile, and inserting the second end of the pile receiving device along its length direction after turning the pile into the first end of the main pile, and making the first end face of the pile driver abut against the first end face of the main pile, and keeping the pile driver in the hoisting state.

[0047] Specifically, refer to Figure 3 and Figure 6, the main pile 300 is first hoisted and translated to the first predetermined position by the hoisting equipment, and then the main pile 300 is turned over. That is, the main pile 300 after the pile turning is hung on the pile support frame 100 on the side of the floating crane 200 by the hoisting equipment. It should be noted that after the main pile 300 is hoisted and translated to the first predetermined position, the main pile 300 and the floating crane 200 can also be connected together by the anchor chain 210 to fix the main pile 300 to a certain extent, and then the main pile 300 is turned over to perform the pile turning operation, avoiding the need to rely on divers to go into the water and connect the anchor chain underwater in the later stage.

[0048] like Figures 5 to 8 As shown, after the main pile 300 is hung, the hoisting equipment is continued to be used to hoist the already fixedly connected pile connector 400 and pile driver 500. First, the fixed pile connector 400 and pile driver 500 are hoisted and translated to the second predetermined position, and then the pile turning operation is performed on the two. After the pile turning, the bottom of the fixed pile connector 400 is inserted into the top of the main pile 300, and the bottom end face of the fixed pile driver 500 is abutted against the top end face of the main pile 300, ensuring that there is no gap between the bottom end face of the pile driver 500 and the top end face of the main pile 300. It should be noted that, as Figure 6 and Figure 7 As shown, the hook 220 is a part of the lifting equipment, and the main pile 300, the fixedly connected pile receiver 400 and the pile driver 500 are all lifted and moved by the hook 220 of the lifting equipment.

[0049] S4, connecting the pile driver and the main pile into one through the pile connector.

[0050] Specifically, refer to Figure 4 , Figure 5 and Figure 8 After the pile driver 500, the pile connector 400 and the main pile 300 are hoisted, the pile connector 400 is started, and the pile driver 500 and the main pile 300 are connected into one body through the pile connector 400. Among them, the driving unit 420 in the pile connector 400 drives the movable guide to move in the direction close to the fixed guide, and the tensioning plate 430 is squeezed outward by the bottom of the guide groove inclined on both sides in the guide groove, and the top block 431 is pushed outward to the inner wall of the main pile 300 to connect the pile driver 500 with the main pile 300 into one body. It is not difficult to understand that when the top block 431 is pushed outward to the inner wall of the main pile 300, the radial force provided by the top block 431 to the main pile 300 is converted into an axial force to fix the main pile 300 and the pile driver 500. Connecting the main pile 300 and the pile driver 500 into one body can improve the force transmission effect during subsequent piling, and can also effectively prevent the pile from slipping. As an example, the pile connector 400 may be specifically configured as a hydraulic pile connector, and the top block 431 moves under the driving action of the hydraulic driving unit 420 .

[0051] S5, opening the limiting structure of the pile supporting frame, and moving the pile driver by hoisting so that the main pile can be sunk under the gravity of the pile driver, the pile receiving device and the main pile.

[0052] Specifically, refer to Figures 3 to 5 , Figure 8 and Fig. 9 , keep the pile driver 500 always in the hoisting state, when the pile driver 500 is connected to the main pile 300 as a whole, open the limit structure of the pile support frame 100, and lower the pile driver 500, the pile connector 400 and the main pile 300 as a whole through the hoisting equipment to carry out the pile sinking operation. Relying on the dead weight of the pile driver 500, the pile connector 400 and the main pile 300, the main pile 300 can be partially sunk below the seabed mud surface. In this process, the angle measuring device set on the main pile 300 is used to measure whether the verticality of the main pile 300 during the pile sinking operation meets the design requirements. If it does not meet the requirements, the pile is pulled out and the pile sinking operation is carried out again. If it meets the requirements, the vibration hammer described below is placed on the pile driver after the pile sinking operation is completed. As a specific example, the angle measuring device can be set as a level ruler. Of course, the angle measuring device can also be set as other devices other than the level ruler. This embodiment does not make specific restrictions on this.

[0053] It should be noted that if Figure 8 As shown, the central axis of the pile support frame 100 is set perpendicular to the seabed plane, and the central axis of the pile support frame 100 coincides with the central axes of the pile driver 500, the pile receiver 400 and the main pile 300 after the lifting is completed. In this way, the verticality of the main pile 300 can be ensured in the subsequent piling process, so that the main pile 300 can be driven into the seabed mud perpendicular to the seabed plane.

[0054] S6. After the pile driving is completed, the hoisting state of the pile driver is released, and a vibrating hammer is fixed to the second end of the pile driver along the length direction thereof.

[0055] Specifically, refer to Figure 5 and Fig. 9After the hoisting is completed, the vibrating hammer 600 is located at the top of the pile driver 500, the pile driver 500 is located at the top of the pile receiver 400, and the pile receiver 400 is located at the top of the main pile 300. At this time, the hoisting equipment has no force, and relying on the deadweight of the vibrating hammer 600, the pile driver 500, the pile receiver 400 and the main pile 300, the main pile 300 can continue to sink under the seabed mud surface to perform the pile sinking operation again. When the pile sinking operation is completed, the angle measuring device set on the main pile 300 is used to measure whether the verticality of the main pile 300 after the pile sinking operation meets the design requirements. If not, the pile is pulled out and the pile sinking operation is performed again. If it meets the requirements, the vibrating hammer 600 is used to perform vibration piling after the pile sinking operation is completed.

[0056] It should be noted that the vibrating hammer 600 is designed using the resonance theory. When the forced vibration frequency of the main pile is consistent with the vibration frequency of the soil particles, the soil particles resonate. At this time, the soil particles have a large amplitude, and sufficient vibration speed and acceleration can quickly destroy the adhesion between the main pile and the soil, so that the pile body and the soil transition from a compacted state to an instantaneous separation state, and the pile sinking resistance, especially its side resistance, is rapidly reduced, and the pile sinks under the action of its own weight. Since the vibrating hammer achieves the purpose of pile sinking by reducing the friction between the pile and the soil, when the friction between the pile and the soil is reduced, the pile can also be pulled up with a force slightly greater than the pile and the pile body. Therefore, the vibrating hammer is not only suitable for pile sinking, but also for pile pulling. The efficiency of pile sinking and pile pulling is very high.

[0057] S7, starting the vibratory hammer, and driving the main pile into the seabed to a preset depth by adjusting the piling frequency of the vibratory hammer and the speed of the hoisting hook.

[0058] Specifically, refer to Figure 5 , Fig. 9 and Fig.10After the pile sinking operation is completed, the vibrating hammer 600 is started, and the vibrating hammer 600 vibrates and beats the pile driver 500, and the pile driver 500 transmits the force of the vibration and beating to the main pile 300 through the pile connector 400, so that the main pile 300 can remain perpendicular to the seabed plane and move downward. During this period, the hook 220 of the hoisting equipment is adjusted to keep descending at the same speed as the main pile 300 to ensure that the vibrating hammer 600 can always transmit the force to the main pile 300 to drive the main pile 300 to move downward. Under the action of the vibrating hammer 600, the main pile 300 has a forced vibration frequency consistent with the vibration frequency of the seabed soil particles, and the main pile can continue to descend under the seabed mud surface. In the specific operation process, the specific descending depth of the main pile 300 can be controlled according to actual needs, so that the main pile 300 can be driven into the preset depth position of the seabed. As a specific example, the specific pile driving depth can be determined by the real-time water depth, the height of the waves and the position of the scale on the pile driver 500 on the sea surface. The embodiments of the present disclosure can set the piling depth to be such that the main pile is completely driven into a preset depth position below the seabed mud surface. Of course, if there are other design requirements for the piling depth in the actual project, such as requiring a portion of the main pile to be exposed from the seabed mud surface, the piling depth can also be designed according to the design requirements, and the present embodiment does not impose any specific restrictions on this.

[0059] It should be noted that if the main pile cannot be driven into the preset depth position of the seabed by using a vibrating hammer, an impact hammer can be used to continue piling until the main pile is driven into the preset depth position of the seabed. In the process of piling with an impact hammer, the verticality of the main pile 300 is measured by an angle measuring device set on the main pile 300 to determine whether it meets the design requirements. If it does not meet the requirements, the pile is pulled out and piling is carried out again. If it meets the requirements, the piling is continued to ensure that the verticality of the main pile 300 during piling meets the design requirements. It should be further noted that, since the embodiment of the present disclosure uses a hoisting device to hoist the vibrating hammer for piling, the vibrating hammer can always transmit a vibration force perpendicular to the seabed plane to the main pile, thereby ensuring the verticality of the main pile relative to the seabed plane during piling. And, using a hoisting device to hoist the vibrating hammer for piling can effectively prevent the occurrence of slipping piles. And, using a vibrating hammer for piling can timely and conveniently pull out the pile when the verticality of the main pile exceeds the design requirements.

[0060] The method for driving buried piles on the seabed of the disclosed embodiment uses a hoisting device to hang the main pile on the pile support frame on the side of the floating crane, so that the central axis of the main pile is perpendicular to the seabed plane. Then, by hoisting a vibrating hammer, a pile driver and a pile connector, the main pile can be driven into the mud to meet the design requirement while ensuring its verticality and preventing the pile from slipping. The use of a vibrating hammer for driving buried piles is realized, which significantly improves the efficiency of piling, effectively avoids the occurrence of pile slipping, and allows pile pulling operations under special circumstances. It has the advantages of simple operation, no need for underwater observation and underwater operation, etc., which improves construction efficiency and reduces operation risks and construction costs.

[0061] S8, recovering the vibrating hammer, the fixedly connected pile receiver and the pile driver to the floating crane vessel.

[0062] Specifically, refer to Fig.10 After the main pile is driven to a predetermined depth, when it is necessary to recover the vibrating hammer 600, the fixedly connected pile connector 400 and the pile driver 500, the vibrating hammer 600 can be first recovered to the floating crane 200 by means of a hoisting device, and then the driving unit 420 of the pile connector 400 drives the movable guide to move in a direction away from the fixed guide, the tensioning plate 430 moves inward in the guide groove, and the top block 431 contracts radially inwardly along the pile connector body 410 until it is separated from the inner wall of the main pile 300. At this time, the pile driver 500 is disconnected from the main pile 300 and is integrated into one body. The pile driver 500 and the pile connector 400 are recovered to the floating crane 200 by means of a hoisting device.

[0063] The method for driving a submarine buried pile according to the embodiment of the present disclosure can conveniently recover the vibrating hammer, the fixedly connected pile connector and the pile driver after the pile driving is completed.

[0064] On the other hand, an embodiment of the present disclosure provides a pile driving device for a submarine buried pile, the pile driving device comprising a pile receiving device, a pile delivery device and a vibrating hammer, and the pile driving device adopts the pile driving method described above. The pile driving device for submarine buried piles of this embodiment can achieve the design requirement of driving the pile body until it is completely buried in the mud while ensuring that the pile body does not slip and the verticality requirement is met, and the pile driving operation of the buried pile is achieved using a vibrating hammer, which significantly improves the pile driving efficiency, effectively avoids the occurrence of pile slipping, and can perform pile pulling operations under special circumstances, and has the advantages of simple operation, no need for underwater observation and underwater operation, etc., which improves construction efficiency and reduces operation risks and construction costs.

[0065] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A method for driving a submarine buried pile, characterized in that: The piling method comprises: Fixing the first end of the pile receiving device along the length direction to the first end of the pile driving device along the length direction; The main pile is hoisted and translated to a first predetermined position and the pile is turned over, and the first end of the main pile after the pile is turned over is hung on the pile support frame on the side of the floating crane along its length direction; and the fixed pile connector and the pile driver are hoisted and translated to a second predetermined position and the pile is turned over, and the second end of the pile connector after the pile is turned over along its length direction is inserted into the first end of the main pile, and the first end face of the pile driver is abutted against the first end face of the main pile, and the pile driver is maintained in a hoisted state; The pile driver is connected to the main pile through the pile connector; Open the limiting structure of the pile support frame, and move the pile driver by hoisting so that the main pile can be sunk under the gravity of the pile driver, the pile receiver and the main pile; When the pile driving is completed, the hoisting state of the pile driver is released, and a vibrating hammer is fixed to the second end of the pile driver along the length direction thereof; The vibratory hammer is started, and the main pile is driven into the seabed to a preset depth by adjusting the piling frequency of the vibratory hammer and the speed of the hoisting hook; The vibrating hammer, the fixedly connected pile receiver and the pile driver are recovered to the floating crane vessel.

2. The method for driving a subsea buried pile according to claim 1, characterized in that: The pile connector includes a pile connector body, a movable guide, a fixed guide and a driving unit for driving the movable guide to move. The fixed guide and the movable guide are formed with a plurality of pairs of guide grooves with inclined bottoms, and each pair of the guide grooves is embedded with a tensioning plate, and the tensioning plate is slidably matched with the bottom of the guide groove, and the tensioning plate is provided with a top block; The method of connecting the pile driver and the main pile into one body through the pile connector includes: The driving unit drives the movable guide to move toward the fixed guide, and the tensioning plate is squeezed by the inclined guide groove bottoms on both sides and moves outward in the guide groove, and the ejecting block is ejected outward to the inner wall of the main pile to connect the pile driver and the main pile into one.

3. The method for driving a seabed buried pile according to claim 2, characterized in that: The step of recovering the vibrating hammer, the fixedly connected pile receiver and the pile driver to the floating crane vessel comprises: The driving unit drives the movable guide to move in a direction away from the fixed guide, the tensioning plate moves inward in the guide groove, and the top block contracts inward along the radial direction of the pile connector body until it is separated from the inner wall of the main pile; The vibrating hammer, the fixedly connected pile receiver and the pile driver are hoisted and recovered to the floating crane vessel.

4. The method for driving a seabed buried pile according to any one of claims 1 to 3, characterized in that: The pile connector is configured as a hydraulic pile connector.

5. The method for driving a seabed buried pile according to any one of claims 1 to 3, characterized in that: The position-limiting structure of the pile support frame comprises a frame body provided with a through passage and a support assembly connected to the frame body, and a plurality of lug plates are distributed along the circumference of the outer surface of the first end of the main pile; wherein the through passage of the frame body is used to pass the main pile, and the support assembly is used to support the corresponding lug plates; The support assembly includes a plurality of support members and a plurality of telescopic mechanisms corresponding to the plurality of support members, wherein the telescopic mechanisms drive the support members to reciprocate between a first position supporting the ear plate and a second position away from the ear plate.

6. The method for driving a seabed buried pile according to any one of claims 1 to 3, characterized in that: The method of lifting and translating the main pile to the first predetermined position and turning the pile comprises: The main pile is hoisted and translated to a first predetermined position, the anchor chain is connected, and the main pile is turned over.

7. The method for driving a seabed buried pile according to any one of claims 1 to 3, characterized in that: The central axes of the pile support frame, the fixedly connected pile receiver and the pile driver coincide with each other and are perpendicular to the seabed plane.

8. The method for driving a seabed buried pile according to any one of claims 1 to 3, characterized in that: Before the main pile is hoisted and translated to the first predetermined position and the pile is turned over, the piling method further comprises: The pile support frame is fixed to the side of the floating crane vessel for hanging the main pile.

9. A pile driving device for a subsea buried pile, characterized in that: The piling device comprises a pile connector, a pile driver and a vibrating hammer, and the piling device adopts the piling method according to any one of claims 1 to 8.

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