Prefabricated back cover of offshore wind power implantable high pile cap and mounting process

Abstract

The invention relates to the technical field of offshore wind power, and discloses an offshore wind power implantable high-pile bearing platform prefabricated sealing bottom and an installation technology, the offshore wind power implantable high-pile bearing platform prefabricated sealing bottom comprises a bearing platform main body, the upper surface of the bearing platform main body is connected with a pouring plate formed through pouring, and the outer wall of the bearing platform main body is connected with a steel jacket box formed through steel bar pouring; the prefabricated assembly is arranged on the bearing platform pouring plate and used for prefabricating a connecting part in advance; the floating assembly is arranged below the bearing platform main body and used for controlling the floating degree of the bearing platform main body; the shock insulation assembly is connected with the bearing platform body and used for reducing fatigue damage of the structure; the prefabricated assembly comprises an engineering pile. Through cooperation of the first connecting ring, the chains, the second connecting ring and the anchor rod of the internal structure of the prefabricated assembly, impact force generated by shaking of the center foundation ring of the device is transmitted to the connecting piece and the engineering pile through the multiple chains, and the effect of improving the overall stability of the structure is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and in particular to a prefabricated bottom sealing and installation process for an offshore wind power implantable high pile cap. Background Art

[0002] Implanted high pile caps are mainly used in offshore wind power projects with complex geology, large stratum fluctuations, thin local cover layers and scattered boulders. From the perspective of the development of structural forms selected for the same type of geological conditions in offshore wind power projects, the current construction of implanted single pile foundations has encountered difficulties, including the curling of boulders, multiple hole collapses, pile slippage and excessive verticality of the casing, which increase the difficulty of construction technology processing and pose a greater safety risk and construction delay risk. In addition, after the hole collapses, the processing cycle is long and the effect is not obvious.

[0003] Due to the operating characteristics of offshore wind power projects in complex marine environments, the foundation pedestals need to withstand long-term wave, tide and wind loads. These external forces can cause the pedestal foundation to shake and vibrate, especially in deep water areas and complex geological conditions. Traditional high pile foundation structures are prone to uneven settlement, structural deformation and even damage due to stress concentration, dynamic loads and long-term fatigue. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a prefabricated bottom sealing and installation process for an offshore wind power implantable high pile pedestal, which solves the problems of vibration and structural stress concentration on the pedestal foundation caused by complex waves and wind loads in the marine environment, and avoids the problems of structural fatigue and uneven settlement.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a prefabricated bottom sealing and installation process for an offshore wind power implantable high pile foundation, comprising: a foundation body, the upper surface of which is connected to a cast plate, and the outer wall of the foundation body is connected to a steel casing box cast with steel bars; a prefabricated component, which is arranged on the foundation casting plate and is used to prefabricate the connection part in advance; a floating component, which is arranged under the foundation body and is used to control the floating degree of the foundation body; an isolation component, which is connected to the foundation body and is used to reduce fatigue damage of the structure; the prefabricated component includes an engineering pile, the outer wall of the engineering pile is provided with a steel pipe sleeve, the steel pipe sleeve is fixed inside the foundation body, and the top of the engineering pile is fixed with a connecting piece.

[0006] Preferably, a fixing block 1 is fixed to the top of the connecting member, a connecting ring 1 is fixed to the outer wall of the fixing block 1, a chain is arranged inside the connecting ring 1, a connecting ring 2 is arranged at the other end of the chain, the interiors of the connecting ring 1 and the connecting ring 2 are both threadedly connected with anchor rods, the outer walls of the anchor rods are passed through the interiors of the connecting ring 1 and the connecting ring 2, a fixing block 2 is fixed to the outer wall of the connecting ring 2, a base ring is fixed to the outer wall of the fixing block 2, and the lower surface of the base ring is fixed to the upper surface of the base body.

[0007] Preferably, a plurality of arc-shaped plates 1 are fixed to the lower surface of the support body, an arc-shaped plate 2 is fixed inside the arc-shaped plate 1, and a support plate is fixed to the lower surface of the arc-shaped plate 2.

[0008] Preferably, a plurality of high-damping rubbers are fixed to the outer wall of the support plate, and a bottom plate is fixed to the outer wall of the high-damping rubber.

[0009] Preferably, the floating assembly comprises a fixing plate, an air pump is fixed to the upper surface of the fixing plate, an air guide tube is fixed to the output end of the air pump, and an air bag is fixed to the end of the air guide tube.

[0010] Preferably, the outer wall of the airbag is fixed to the inside of the bottom plate, a plurality of water outlets are opened through the inside of the bottom plate, and a plurality of guide plates are fixed to the lower surface of the bottom plate.

[0011] Preferably, the seismic isolation assembly includes a limiting ring, the outer wall of the limiting ring is arranged on the support plate, a supporting block is fixed to the outer wall of the limiting ring, one end of the damper is fixed to the lower surface of the support block, and the other end of the damper is fixed to the upper surface of the support plate.

[0012] Preferably, the seismic isolation assembly includes a telescopic rod, the top end of the telescopic rod is fixed to the lower surface of the base body, the bottom end of the telescopic rod is fixed with a hinge block 1, a connecting rod 1 is rotated inside the hinge block 1, a hinge block 2 is rotated at the end of the connecting rod 1, a connecting rod 3 is fixed to the bottom end of the hinge block 2, a rotating ring is fixed to the bottom end of the connecting rod 3, and the inner wall of the rotating ring rotates on the outer wall of the limit ring.

[0013] An installation process for prefabricated bottom cover of an offshore wind power implantable high pile foundation, firstly, the engineering pile with a steel pipe sleeve is implanted into the seabed through the positioning and piling equipment of the engineering pile, and at the same time, the connector at the top of the engineering pile is ensured to be accurately aligned with the interface reserved for the foundation body;

[0014] Lifting and positioning of the main body of the cap: The air pump of the floating assembly is used to inject gas into the air bag through the air guide tube. The air bag adjusts the buoyancy of the main body of the cap to make it have adjustable floating capacity. Under the control of appropriate water surface buoyancy, the main body of the cap is hoisted to the predetermined position of the engineering pile, and the impact force is transmitted to the fixing block 2 and the fixing block 1 through the anchor rod by using the cooperation of the foundation ring, the connecting ring 1, the chain, and the connecting ring 2;

[0015] Fixing and bottom sealing of the pedestal: The arc plate 1 and arc plate 2 set on the lower surface of the pedestal body provide stable support, which is fixed to the bottom plate through the cooperation of the support plate and high damping rubber. At the same time, the guide plate guides the water flow to be discharged through the outlet to ensure stability in the dynamic environment of seawater;

[0016] Installation and commissioning of seismic isolation components: The connection between the limit ring and the support plate ensures the coordination between the seismic isolation components and the main body of the platform. The telescopic rod, hinge block 1, hinge block 2, connecting rod 1, and connecting rod 3 ensure that they provide effective shock absorption between the main body of the platform and the foundation. The damper and the support block further reduce vibration transmission to ensure that fatigue damage is reduced under wave impact.

[0017] Dismantling of floating components: After the main body of the pedestal is fixed to the engineering piles by chains and anchors, the gas in the airbag is discharged through the air duct to reduce the buoyancy, complete the sinking of the pedestal and achieve the final docking with the pile foundation.

[0018] Working principle: The main body of the pedestal is fixed on the seabed through a steel casing and prefabricated components. The engineering piles in the prefabricated components are firmly fixed inside the main body of the pedestal through the external steel pipe sleeves. The connecting parts are connected to the engineering piles. The fixed block 1 transmits the impact force generated by the shaking of the central foundation ring of the device to the anchor rod through the connecting ring 1, the chain and the connecting ring. The anchor rod further disperses the impact force to the fixed block 2 and the foundation ring. The foundation ring is fixedly connected to the upper surface of the main body of the pedestal. The overall structure jointly bears the impact force through multiple chains, so that the entire device can effectively disperse stress and avoid structural fatigue and uneven settlement.

[0019] The floating component uses an air pump to transport gas to the airbag through an air guide tube. The airbag is set inside the base plate. The buoyancy of the base is adjusted by adjusting the air pressure of the airbag to ensure that the base body maintains the required buoyancy and stability during the installation process. The water outlet is used to discharge excess water, and the guide plate under the base plate optimizes the flow of water, thereby improving the installation efficiency and stability of the structure.

[0020] The seismic isolation assembly connects the pedestal body and the support plate through a telescopic rod. When the device is impacted by waves and tides, the telescopic rod achieves force buffering and transmission through the movement of hinge block 1, connecting rod 1, hinge block 2, connecting rod 3 and rotating ring. The limit ring and the support block jointly limit the movement range of the structure. The high-damping rubber installed on the support plate further absorbs the remaining impact force. The damper absorbs and dissipates energy, thereby reducing fatigue damage and extending the service life of the device.

[0021] The present invention provides a prefabricated bottom sealing and installation process for an offshore wind power implantable high pile cap, which has the following beneficial effects:

[0022] 1. The present invention transmits the impact force generated by the shaking of the central foundation ring of the device to the connecting parts and engineering piles through multiple chains through the cooperation between the connecting ring 1, the chain, the connecting ring 2 and the anchor rod of the internal structure of the prefabricated component, thereby improving the overall stability of the structure, solving the vibration and structural stress concentration problems caused by complex waves and wind loads in the marine environment on the pedestal foundation, and avoiding structural fatigue and uneven settlement.

[0023] 2. The present invention absorbs the impact force generated by the entire device and the impact force of seawater on the device through the cooperation between the seismic isolation component and the high-damping rubber, thereby improving the service life of the device and solving the problems of structural fatigue damage and sealing failure caused by repeated vibration of the device when it is exposed to dynamic loads such as wind, waves and tidal changes for a long time, thereby ensuring its long-term stable operation under severe sea conditions.

[0024] 3. The present invention adjusts the buoyancy of the foundation through the coordination of the internal structure of the floating assembly to assist the installation of the subsequent casting plate and the steel casing, thereby improving the overall construction efficiency of the device, solving the problems of increased difficulty in foundation installation, inaccurate positioning and extended construction period due to the complex offshore construction environment, tidal changes and wind and wave influences, and ensuring accurate construction and the safety and stability of device installation under harsh sea conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the steel casing of the present invention;

[0027] Figure 3 It is a partial structural schematic diagram of the casting plate of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the connecting piece of the present invention;

[0029] Figure 5 It is a schematic diagram of the internal structure of the platform of the present invention;

[0030] Figure 6 It is a partial structural schematic diagram of the limiting ring of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the airbag part of the present invention.

[0032] Among them, 1. Cap body; 2. Casting plate; 3. Steel casing; 4. Prefabricated components; 401. Connectors; 402. Fixed block 1; 403. Connecting ring 1; 404. Chain; 405. Connecting ring 2; 406. Anchor rod; 407. Fixed block 2; 408. Foundation ring; 409. Engineering pile; 5. Support plate; 6. High damping rubber; 7. Floating component; 701. Fixed plate; 702. Air pump; 703, air guide tube; 704, air bag; 8, seismic isolation assembly; 801, limit ring; 802, telescopic rod; 803, hinge block one; 804, connecting rod one; 805, hinge block two; 806, connecting rod three; 807, rotating ring; 808, support block; 809, damper; 9, arc plate one; 10, arc plate two; 11, bottom plate; 12, guide plate; 13, water outlet. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] Please see attached Figure 1 - Attachment Figure 4The embodiment of the present invention provides a prefabricated bottom sealing and installation process of an implantable high pile foundation for offshore wind power, comprising: a foundation body 1, the upper surface of which is connected to a cast plate 2, and the outer wall of the foundation body 1 is connected to a steel casing 3 cast by steel bars; a prefabricated component 4, which is arranged on the foundation casting plate 2 and is used to prefabricate the connection part in advance; a floating component 7, which is arranged under the foundation body 1 and is used to control the floating degree of the foundation body 1; an isolation component 8, which is connected to the foundation body 1 and is used to reduce fatigue damage of the structure; the prefabricated component 4 includes an engineering pile 409, the outer wall of the engineering pile 409 is provided with a steel pipe sleeve, the steel pipe sleeve is fixed inside the foundation body 1, and the engineering pile 409 is provided with a steel pipe sleeve. A connecting piece 401 is fixed to the top of 9, a fixing block 402 is fixed to the top of the connecting piece 401, a connecting ring 403 is fixed to the outer wall of the fixing block 402, a chain 404 is arranged inside the connecting ring 403, a connecting ring 2 405 is arranged at the other end of the chain 404, the insides of the connecting ring 1 403 and the connecting ring 2 405 are both threadedly connected with anchor rods 406, the outer walls of the anchor rods 406 are penetrated inside the connecting ring 1 403 and the connecting ring 2 405, a fixing block 2 407 is fixed to the outer wall of the connecting ring 2 405, a base ring 408 is fixed to the outer wall of the fixing block 2 407, and the lower surface of the base ring 408 is fixed to the upper surface of the base body 1.

[0036] Specifically, the outer wall of the cap body 1 is formed into a steel casing 3 by casting steel bars to enhance the structural strength and durability of the cap, especially in the contact area between the cap and the seabed pile foundation, to ensure the stability of long-term operation in the marine environment. The prefabricated components 4 are located on the cap casting plate 2, and are used to prefabricate the connection parts in advance, reducing the need for adjustment to adapt to the complex offshore construction environment during the subsequent installation process, thereby speeding up the construction progress.

[0037] The floating assembly 7 is arranged below the main body 1 of the pedestal, and is mainly used to adjust and control the buoyancy of the main body 1 of the pedestal during the construction process. By reasonably controlling the floating degree, it is ensured that the pedestal can be accurately positioned and stably installed in a complex ocean tide and wave environment, thereby reducing construction errors. The seismic isolation assembly 8 is connected to the main body 1 of the pedestal, and its function is to reduce the fatigue damage to the structure in a long-term marine environment. Through the shock absorption and impact resistance design, the pedestal has a higher vibration resistance under the action of wind and wave loads, effectively extending the service life of the overall structure.

[0038] The prefabricated component 4 includes an engineering pile 409, the outer wall of which is covered with a steel pipe sleeve, which is embedded in the interior of the platform body 1, thereby enhancing the connection strength between the platform and the pile foundation, ensuring the firmness and bearing capacity of the pile foundation on the seabed, and the top of the engineering pile 409 is connected to the fixing block 1 402 through a connector 401, and the fixing block 1 402 is connected to the chain 404 through an external connecting ring 1 403 to enhance the transmission and dispersion of force. The other end of the chain 404 is connected to the connecting ring 2 405, and the two connecting rings are both connected to the anchor rod 406 through a threaded connection. The anchor rod 406 plays a role in effectively transmitting the central shaking force of the device to the foundation structure through the chain 404 system, further improving the impact resistance and stability of the overall structure. The outer wall of the connecting ring 2 405 is connected to the foundation ring 408 through the fixing block 2 407, and the foundation ring 408 is fixed to the upper surface of the platform body 1 through the lower surface, realizing a stable foundation structure and avoiding structural stress concentration and uneven settlement.

[0039] Please see attached Figure 5 - Attachment Figure 7 A plurality of arc plates 19 are fixed to the lower surface of the supporting platform body 1, an arc plate 2 10 is fixed inside the arc plate 19, a support plate 5 is fixed to the lower surface of the arc plate 2 10, a plurality of high damping rubbers 6 are fixed to the outer wall of the support plate 5, a bottom plate 11 is fixed to the outer wall of the high damping rubber 6, a floating component 7 includes a fixed plate 701, an air pump 702 is fixed to the upper surface of the fixed plate 701, an air guide tube 703 is fixed to the output end of the air pump 702, an air bag 704 is fixed to the end of the air guide tube 703, an outer wall of the air bag 704 is fixed to the inside of the bottom plate 11, a plurality of water outlets 13 are opened through the inside of the bottom plate 11, and a plurality of guide plates 12 are fixed to the lower surface of the bottom plate 11.

[0040] Specifically, a plurality of arc plates 19 are fixed to the lower surface of the pedestal body 1. The existence of the arc plates 19 enables the entire pedestal structure to have better compression resistance and support performance, and at the same time, the force distribution is more uniform, effectively reducing the problem of local stress concentration between the pedestal and the pile foundation. An arc plate 2 10 is also fixed inside the arc plate 1 9, which further enhances the stability and rigidity of the pedestal structure. Through the layered coordination design of these two arc plates, when the pedestal is subjected to dynamic loads such as waves and tides in the marine environment, it can buffer external impact forces through reasonable structural deformation. A support plate 5 is fixed to the lower surface of the arc plate 2 10. The support plate 5 not only supports the entire pedestal body 1, but also effectively transfers the load borne by the pedestal to the pile foundation system through its rigid structure. The outer wall of the support plate 5 is fixed with a plurality of high-damping rubbers 6, which can effectively absorb the impact of waves and wind in the marine environment and reduce fatigue damage to the pedestal structure. Especially under long-term operation, the high-damping rubbers 6 can reduce structural fatigue caused by vibration and extend the service life of the overall system. The outer wall of the high-damping rubber 6 is fixed with a bottom plate 11, which provides basic support for the entire pedestal and has a plurality of water outlets 13 therein. The design of the water outlets 13 can quickly drain accumulated water during construction and operation, thereby avoiding buoyancy problems caused by accumulated water at the bottom of the pedestal.

[0041] Please see attached Figure 5 - Attachment Figure 7 The seismic isolation component 8 includes a limit ring 801, the outer wall of the limit ring 801 is arranged on the support plate 5, the outer wall of the limit ring 801 is fixed with a support block 808, the lower surface of the support block 808 is fixed with one end of a damper 809, and the other end of the damper 809 is fixed to the upper surface of the support plate 5, the seismic isolation component 8 includes a telescopic rod 802, the top of the telescopic rod 802 is fixed to the lower surface of the base body 1, the bottom end of the telescopic rod 802 is fixed with a hinge block 1 803, the inside of the hinge block 1 803 is rotated with a connecting rod 1 804, the end of the connecting rod 1 804 is rotated with a hinge block 2 805, the bottom end of the hinge block 2 805 is fixed with a connecting rod 3 806, the bottom end of the connecting rod 3 806 is fixed with a rotating ring 807, and the inner wall of the rotating ring 807 rotates on the outer wall of the limit ring 801.

[0042] Specifically, the seismic isolation component 8 is first installed on the outer wall of the support plate 5 through the limit ring 801. The limit ring 801 not only constrains the overall movement of the system, but is also connected to the support block 808. By fixing the support block 808 on the lower surface of the support plate 5, a stable foundation can be provided for the entire seismic isolation system. The support block 808 is connected to one end of the damper 809, and the other end of the damper 809 is fixed on the upper surface of the support plate 5. The damper 809 plays a key role in the entire seismic isolation process. Through the high-damping material inside it, it can effectively absorb the vibration energy generated by the platform when it is subjected to dynamic loads such as waves, tides, and wind, thereby reducing the amplitude of vibration transmitted to the platform body 1 and improving the overall anti-fatigue performance.

[0043] The seismic isolation assembly 8 also includes a telescopic rod 802, the top of which is fixedly connected to the lower surface of the pedestal body 1, and the bottom end of the telescopic rod 802 is connected to an articulated block 803. A connecting rod 804 can be rotated inside the articulated block 803, and the other end of the connecting rod 804 is connected through an articulated block 805. This design allows the structure to achieve a certain buffering and absorption force transmission through the flexible rotation of the articulated block when it is subjected to external impact. The bottom end of the articulated block 805 is connected to a connecting rod 3 806, and a rotating ring 807 is fixed to the other end of the connecting rod 3 806. The rotating ring 807 is embedded in the outer wall of the limiting ring 801 and can rotate freely. The design of the rotating ring 807 allows the entire seismic isolation system to have a certain degree of flexibility under the action of external forces such as wind and waves. When the pedestal body 1 is subjected to irregular external impact, the rotating ring 807 can ensure the dispersion and absorption of force by rotation and displacement. The existence of the limiting ring 801 limits the movement range of the rotating ring 807 to prevent excessive displacement from causing structural instability.

[0044] Embodiment 2:

[0045] Please see attached Figure 1 - Attachment Figure 7 The embodiment of the present invention provides an installation process for a prefabricated bottom cover of an offshore wind power implantable high pile foundation, which is characterized in that, firstly, the engineering pile 409 with a steel pipe sleeve is implanted into the seabed through the positioning and piling equipment of the engineering pile 409, while ensuring that the connector 401 at the top of the engineering pile 409 is accurately aligned with the interface reserved for the foundation body 1;

[0046] Hoisting and positioning of the platform body 1: The air pump 702 of the floating assembly 7 is used to inject gas into the air bag 704 through the air guide tube 703. The air bag 704 adjusts the buoyancy of the platform body 1 to make it have adjustable floating ability. Under the control of appropriate water surface buoyancy, the platform body 1 is hoisted to the predetermined position of the engineering pile 409, and the impact force is transmitted to the fixing block 2 407 and the fixing block 1 402 through the anchor rod 406 by using the cooperation of the foundation ring 408, the connecting ring 1 403, the chain 404, and the connecting ring 2 405;

[0047] Fixing and bottom sealing of the platform: The arc plate 1 9 and the arc plate 2 10 arranged on the lower surface of the platform body 1 provide stable support, and are fixed on the bottom plate 11 through the cooperation of the support plate 5 and the high damping rubber 6. At the same time, the guide plate 12 guides the water flow to be discharged through the outlet 13 to ensure stability in the dynamic environment of seawater;

[0048] Installation and commissioning of the seismic isolation assembly 8: The connection between the limit ring 801 and the support plate 5 ensures the coordination between the seismic isolation assembly 8 and the platform body 1. The telescopic rod 802, the hinge block 1 803, the hinge block 2 805, the connecting rod 1 804, and the connecting rod 3 806 ensure that they provide effective shock absorption between the platform body 1 and the foundation. The damper 809 and the support block 808 further reduce vibration transmission to ensure that fatigue damage is reduced under wave impact.

[0049] Dismantling of floating assembly 7: After the foundation body 1 is fixed to the engineering pile 409 through the chain 404 and the anchor rod 406, the gas in the airbag 704 is discharged through the air guide tube 703 to reduce the buoyancy, complete the sinking of the foundation and achieve the final docking with the pile foundation.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A prefabricated bottom cover for an offshore wind power implantable high pile cap, characterized in that: include: A cap body (1), the upper surface of which is connected to a cast plate (2), and the outer wall of the cap body (1) is connected to a steel casing (3) cast with steel bars; A prefabricated component (4) is arranged on the cap casting plate (2) and is used to prefabricate the connection parts in advance; A floating assembly (7), which is arranged under the support platform body (1) and is used to control the floating degree of the support platform body (1); A seismic isolation assembly (8), which is connected to the platform body (1) and is used to reduce fatigue damage to the structure; The prefabricated component (4) comprises an engineering pile (409), the outer wall of the engineering pile (409) is provided with a steel pipe sleeve, the steel pipe sleeve is fixed inside the foundation body (1), and the top of the engineering pile (409) is fixed with a connecting piece (401).

2. The prefabricated bottom cover of the offshore wind power implantable high pile cap according to claim 1 is characterized in that: A fixing block 1 (402) is fixed to the top of the connecting member (401), a connecting ring 1 (403) is fixed to the outer wall of the fixing block 1 (402), a chain (404) is arranged inside the connecting ring 1 (403), a connecting ring 2 (405) is arranged at the other end of the chain (404), the interiors of the connecting ring 1 (403) and the connecting ring 2 (405) are both threadedly connected with anchor rods (406), the outer walls of the anchor rods (406) are penetrated inside the connecting ring 1 (403) and the connecting ring 2 (405), a fixing block 2 (407) is fixed to the outer wall of the connecting ring 2 (405), a base ring (408) is fixed to the outer wall of the fixing block 2 (407), the lower surface of the base ring (408) is fixed to the upper surface of the support body (1).

3. The prefabricated bottom cover of the offshore wind power implantable high pile cap according to claim 1 is characterized in that: A plurality of arc-shaped plates (9) are fixed to the lower surface of the support platform body (1), an arc-shaped plate (10) is fixed inside the arc-shaped plate (9), and a support plate (5) is fixed to the lower surface of the arc-shaped plate (10).

4. The prefabricated bottom cover of the offshore wind power implantable high pile cap according to claim 3 is characterized in that: A plurality of high-damping rubbers (6) are fixed to the outer wall of the support plate (5), and a bottom plate (11) is fixed to the outer wall of the high-damping rubber (6).

5. The prefabricated bottom cover of the offshore wind power implantable high pile cap according to claim 1 is characterized in that: The floating assembly (7) comprises a fixing plate (701), an air pump (702) is fixed on the upper surface of the fixing plate (701), an air guide tube (703) is fixed at the output end of the air pump (702), and an air bag (704) is fixed at the end of the air guide tube (703).

6. The prefabricated bottom cover of the offshore wind power implantable high pile cap according to claim 5 is characterized in that: The outer wall of the air bag (704) is fixed inside the bottom plate (11), a plurality of water outlets (13) are provided through the inside of the bottom plate (11), and a plurality of guide plates (12) are fixed on the lower surface of the bottom plate (11).

7. The prefabricated bottom cover of the offshore wind power implantable high pile cap according to claim 1 is characterized in that: The seismic isolation assembly (8) comprises a limiting ring (801), the outer wall of the limiting ring (801) is arranged on the support plate (5), a support block (808) is fixed to the outer wall of the limiting ring (801), one end of a damper (809) is fixed to the lower surface of the support block (808), and the other end of the damper (809) is fixed to the upper surface of the support plate (5).

8. The prefabricated bottom cover of the offshore wind power implantable high pile cap according to claim 1 is characterized in that: The seismic isolation assembly (8) comprises a telescopic rod (802), the top end of the telescopic rod (802) is fixed to the lower surface of the supporting platform body (1), the bottom end of the telescopic rod (802) is fixed with a hinge block 1 (803), a connecting rod 1 (804) is rotated inside the hinge block 1 (803), the end of the connecting rod 1 (804) is rotated with a hinge block 2 (805), the bottom end of the hinge block 2 (805) is fixed with a connecting rod 3 (806), the bottom end of the connecting rod 3 (806) is fixed with a rotating ring (807), and the inner wall of the rotating ring (807) is rotated on the outer wall of the limit ring (801).

9. An installation process for a prefabricated bottom seal of an offshore wind power implantable high pile cap, according to the prefabricated bottom seal of an offshore wind power implantable high pile cap according to claims 1-8, characterized in that: First, the engineering pile (409) with the steel pipe sleeve is implanted into the seabed by positioning the engineering pile (409) and using the piling equipment, while ensuring that the connector (401) at the top of the engineering pile (409) is accurately aligned with the interface reserved on the foundation body (1); Lifting and positioning of the foundation body (1): using the air pump (702) of the floating assembly (7) to inject gas into the air bag (704) through the air guide tube (703), the air bag (704) adjusts the buoyancy of the foundation body (1) so that it has adjustable floating ability. Under the control of appropriate water surface buoyancy, the foundation body (1) is hoisted to a predetermined position of the engineering pile (409), and the impact force is transmitted to the fixing block 2 (407) and the fixing block 1 (402) through the anchor rod (406) by using the cooperation of the foundation ring (408) and the connecting ring 1 (403), the chain (404) and the connecting ring 2 (405); Fixing and bottom sealing construction of the pedestal: The arc-shaped plate 1 (9) and the arc-shaped plate 2 (10) arranged on the lower surface of the pedestal body (1) provide stable support, and are fixed on the bottom plate (11) through the cooperation of the support plate (5) and the high damping rubber (6). At the same time, the guide plate (12) guides the water flow to be discharged through the water outlet (13), thereby ensuring stability in the dynamic environment of seawater; Installation and commissioning of the seismic isolation assembly (8): The connection between the limiting ring (801) and the supporting plate (5) ensures the coordination between the seismic isolation assembly (8) and the supporting platform body (1); the telescopic rod (802) and the hinge block 1 (803), the hinge block 2 (805) and the connecting rod 1 (804) and the connecting rod 3 (806) ensure that they provide effective shock absorption between the supporting platform body (1) and the foundation; the damper (809) and the supporting block (808) further reduce vibration transmission, ensuring that fatigue damage is reduced under wave impact; Dismantling of the floating assembly (7): After the foundation body (1) is fixed to the engineering pile (409) through the chain (404) and the anchor rod (406), the gas in the air bag (704) is discharged through the air guide tube (703), reducing the buoyancy, completing the sinking of the foundation and achieving the final docking with the pile foundation.

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