Offshore wind power anchor-pulling pile foundation structure and construction device thereof

Abstract

The application relates to the technical field of offshore pile foundation construction, and discloses an offshore wind power anchor-pulling type pile foundation structure and a construction device thereof, wherein the pile foundation structure comprises a steel pipe column, a tower drum, anchor piles, anchor cables and a clamp, the steel pipe column is vertically embedded and pre-buried in seabed mud, the top end of the steel pipe column extends out of the seabed mud surface, the bottom end of the tower drum is fixedly connected with the top end of the steel pipe column, and a fan is installed at the top end of the tower drum; the pile foundation takes the steel pipe column as a vertical load-bearing matrix to bear the fan self weight and vertical load, a plurality of groups of torpedo anchor piles are uniformly arranged in the annular shape outside the tower drum, a ring-shaped prestressed anchoring system is formed through the clamp and a plurality of inclined anchor cables, the pretightening force of the cable is uniformly regulated by means of a tensioner, multidirectional inclined tension forces offset the lateral thrust and overturning moment generated by the wind on the fan, the tower drum displacement is constrained from three dimensions of vertical pressure bearing, horizontal limiting and overturning resistance, and the alternating load of wind and wave and the uneven settlement of seabed are effectively resisted.

Description

Technical Field

[0001] This invention belongs to the field of offshore pile foundation construction technology, specifically relating to an offshore wind power anchor-type pile foundation structure and its construction device. Background Technology

[0002] With the rapid development of the offshore wind power industry and the continuous expansion of nearshore wind power installed capacity, conventional monopile foundations and jacket foundations have high construction costs, poor seabed adaptability, and significant limitations in application in deep water and soft soil geological areas. Anchored wind power pile foundations have gradually become the preferred form of nearshore wind power foundation due to their advantages of low cost, convenient construction, and reliable anchoring.

[0003] At present, during the construction of offshore pile foundations and the placement of anchor piles, the anchor pile placement process relies heavily on manual operation at sea. In conventional construction, after the anchor piles are transported to the construction site, offshore workers need to wade into the water and dive below the surface to complete procedures such as anchor pile restraint and untying, anchor cable straightening, and anchor body alignment. Due to the complex hydrological environment of the sea area, which is accompanied by wind, waves, currents, and undercurrents all year round, offshore workers face multiple safety hazards such as drowning, collisions, seawater erosion, and underwater foreign object cuts, making the operation safety management difficult. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and reasonably designed pile foundation structure in order to solve the above problems.

[0005] The present invention achieves the above objectives through the following technical solutions: The first aspect of the present invention provides an offshore wind power anchored pile foundation structure, including a steel pipe column, a tower, anchor piles, anchor cables and clamps. The steel pipe column is vertically embedded in the seabed mud layer, and the top of the steel pipe column extends out of the seabed mud surface. The bottom end of the tower is fixedly connected to the top end of the steel pipe column, and a wind turbine is installed at the top end of the tower. The anchor piles are vertically buried deep in the seabed mud layer and are arranged in multiple sets. The multiple sets of anchor piles are evenly spaced around the central axis of the tower. The clamp is fixedly sleeved on the outer wall of the tower. Multiple sets of anchor cables corresponding to the anchor piles are connected to the outer wall of the clamp. Tensioners are installed on the anchor cables. The anchor cables extend downward at an angle from the clamp. The lower end of the anchor cable is connected to the top of the corresponding anchor pile. The multiple sets of anchor cables are inclined and tensioned to limit the tower.

[0006] The second aspect of the present invention provides a construction device for offshore wind power anchored pile foundations, used to deploy anchor piles into the seabed mud layer. The device includes a buoy and multiple sets of rings corresponding to the tail fins of the anchor piles. The multiple sets of rings are spaced apart circumferentially along the buoy. Each set of rings has a connecting rod connected to the side surface near the anchor pile. The end of the connecting rod away from the ring is connected to the corresponding tail fin of the anchor pile through a pin. The surfaces of the multiple sets of rings are connected to a mounting frame. The mounting frame is equipped with a pin-pulling assembly. After the pin-pulling assembly pulls the multiple sets of pins from the tail fins of the anchor piles, the anchor piles sink from the sea surface into the seabed mud layer due to their own weight.

[0007] As a further optimization of the present invention, the surfaces of multiple sets of ring sleeves are connected to a ring cylinder, the ring cylinder is placed on the outside of the anchor pile, and the surface of the ring cylinder is provided with a reserved slot for placing the anchor cable.

[0008] As a further optimization of the present invention, the pontoon is arranged in a circular shape, each set of rings passes through the central hole of the pontoon and is fixed on the outer side of the pontoon, and the mounting frame includes an upper mounting plate and a lower mounting plate arranged vertically, and the upper mounting plate and the lower mounting plate are coaxially arranged with the pontoon.

[0009] As a further optimization of the present invention, the anchor pile consists of an anchor body and multiple sets of tail wings. The multiple sets of tail wings are circumferentially connected to the surface of the anchor body. Each set of connecting rods has a wing slot on its surface and an insertion port on its surface. The anchor pile tail wings have insertion holes on their surfaces. The anchor pile tail wings are inserted into the corresponding wing slots so that the insertion holes correspond to the insertion ports. The pins are inserted into the corresponding insertion holes and insertion ports. One end of the pins is fixedly connected to the driving end of the pin-pulling assembly.

[0010] As a further optimization of the present invention, the pin-pulling assembly includes a driving component, a driving disk, a transmission disk, and multiple sets of limiting rods. The driving disk is located between the upper mounting plate and the lower mounting plate and is fixedly connected to the driving end of the driving component. One end of the limiting rod is fixedly connected to the surface of the driving disk, and the other end of the limiting rod passes through the lower mounting plate and is connected to the transmission disk. Multiple sets of fixing plates corresponding to the pins are fixedly connected to the surface of the transmission disk away from the limiting rods. The surface of the fixing plate is provided with an inclined groove, and a driving rod is slidably connected in the inclined groove. One end of the pin is fixedly connected to the corresponding driving rod.

[0011] As a further optimization of the present invention, a support frame is connected to the surfaces of multiple sets of rings. A water pump is installed on the support frame, and a water pipe is connected to the pump's pumping end. The anchor pile is hollow inside, with an opening at the upper end. Multiple sets of through holes are opened on the surface of the anchor pile near the lower end. The opening and through holes communicate with the interior of the anchor pile. A pipe seat is installed inside the opening of the anchor pile. The end of the water pipe away from the water pump is connected to the pipe seat. A connecting mechanism is installed on the pipe seat, which is used to connect the pipe seat and the anchor pile.

[0012] As a further optimization of the present invention, the connecting mechanism includes a rotating ring and a driving assembly for driving the rotating ring to rotate. The rotating ring is rotatably connected to the pipe seat. The inner top surface of the anchor pile is connected to the outer insert blocks on both sides of the pipe seat. The inner surface of the pipe seat located inside the anchor pile is connected to the inner insert block, which is correspondingly provided with the outer insert block. The outer insert block and the inner insert block are both provided with a locking strip. The two sides of the outer surface of the rotating ring are fixedly connected to the transmission rod one. The end of the transmission rod one away from the rotating ring is rotatably connected to the transmission rod two. The end of the transmission rod two away from the transmission rod one is rotatably connected to the end of the corresponding locking strip away from the outer insert block.

[0013] As a further optimization of the present invention, the driving assembly includes a second driving component and a vertical rod. A groove is formed on the surface of the tube seat, and the driving assembly drives the vertical rod to slide along the inner wall of the groove. The vertical rod passes through the groove. A spiral groove is formed on the surface of the vertical rod inside the anchor pile. A rotating ring is sleeved on the outside of the vertical rod. A spiral block is fixedly connected to the inner wall of the rotating ring. The spiral block slides along the inner wall of the spiral groove. A sliding plate is fixedly connected to one end of the vertical rod inside the anchor pile. A limiting rod is fixedly connected to one side surface of the tube seat inside the anchor pile. The sliding plate slides along the surface of the limiting rod. A return spring is sleeved on the outside of the vertical rod. The two ends of the return spring are respectively connected to the rotating ring and the sliding plate.

[0014] As a further optimization of the present invention, the second driving component is a pull rope. One end of the pull rope is fixedly connected to the end of the vertical rod located outside the anchor pile, and the other end passes through the central hole of the float and is connected to the support frame. Pulling the pull rope causes the vertical rod to slide along the inner wall of the chute.

[0015] The beneficial effects of this invention are as follows: The pile foundation of this invention uses steel pipe columns as the vertical load-bearing base to bear the self-weight and vertical load of the wind turbine. Multiple sets of torpedo anchor piles are evenly arranged in a ring on the outside of the tower. A ring-shaped prestressed anchoring system is formed by clamps and multiple oblique anchor cables. The pretension of the cables is uniformly controlled by the tensioner. The oblique tension in multiple directions offsets the lateral thrust and overturning moment generated by the wind on the wind turbine. The tower displacement is constrained from three dimensions: vertical bearing, horizontal limiting, and anti-overturning. It effectively resists the alternating load of wind and waves and uneven settlement of the seabed, and greatly improves the overall stability of the wind power foundation. The construction device of this invention uses an annular buoy to achieve floating operation on the sea surface. The buoy, the ring sleeve, and the ring cylinder form an integrated anchor pile transport tool. No personnel need to go into the sea to operate throughout the process. The ring cylinder surrounds the outside of the torpedo anchor, and the reserved gap allows the anchor cable to pass through. During the transfer and sinking stages, the anchor pile is prevented from shaking due to the impact of waves and the steel cable from getting tangled and bumped, ensuring the stability of the anchor pile's deployment posture. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the location of the water pump of the present invention; Figure 3 This is a schematic diagram of the connecting rod of the present invention; Figure 4 This is a schematic diagram of the structure of the pin-pulling assembly of the present invention; Figure 5 This is a schematic diagram of the wing slot structure of the present invention; Figure 6 This is a schematic diagram showing the position of the tube seat of the present invention; Figure 7 This is a schematic diagram showing the position of the external insertion block of the present invention; Figure 8 This is a schematic diagram of the structure of transmission rod one and transmission rod two of the present invention; Figure 9 This is a schematic diagram of the vertical rod of the present invention; Figure 10 This is a schematic diagram of the spiral block of the present invention.

[0017] In the diagram: 1. Steel pipe column; 2. Tower; 3. Wind turbine; 4. Anchor pile; 5. Anchor cable; 6. Clamp; 7. Tensioner; 8. Pin assembly; 81. Drive component one; 82. Drive disc; 83. Transmission disc; 84. Limiting rod; 85. Fixing plate; 86. Inclined groove; 87. Drive rod; 9. Drive assembly; 91. Vertical rod; 92. Slide groove; 93. Spiral groove; 94. Spiral block; 95. Sliding plate; 96. Limiting rod; 97. Return spring; 98. Drive Component 2; 10. Float; 11. Ring sleeve; 12. Connecting rod; 121. Wing slot; 13. Pin; 14. Mounting bracket; 141. Upper mounting plate; 142. Lower mounting plate; 15. Ring cylinder; 16. Reserved slot; 17. Support frame; 18. Water pump; 19. Water pipe; 20. Opening; 21. Through hole; 22. Pipe seat; 23. Rotating ring; 24. Outer insert block; 25. Inner insert block; 26. Locking strip; 27. Transmission rod one; 28. Transmission rod two; 29. ​​Clamping block. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1; refer to Figure 1The structure shown is an offshore wind power anchored pile foundation structure, including a steel pipe column 1, a tower 2, an anchor pile 4, an anchor cable 5, and a clamp 6. The steel pipe column 1 is vertically embedded in the seabed mud layer, and the top of the steel pipe column 1 extends out of the seabed mud surface. The bottom end of the tower 2 is fixedly connected to the top end of the steel pipe column 1, and a wind turbine 3 is installed at the top end of the tower 2. Anchor piles 4 are vertically buried deep in the seabed mud layer and multiple sets are set. Multiple sets of anchor piles 4 are evenly spaced around the central axis of tower 2. Clamps 6 are fixedly sleeved on the outer wall of tower 2. Multiple sets of anchor cables 5 corresponding to anchor piles 4 are connected to the outer wall of clamps 6. Tensioners 7 are installed on anchor cables 5. Anchor cables 5 extend downward at an angle from clamps 6. The lower end of anchor cables 5 is connected to the top of the corresponding anchor pile 4. Multiple sets of anchor cables 5 are inclined and tensioned to limit tower 2.

[0020] Among them, steel pipe column 1 serves as the main vertical foundation of tower 2, deeply buried inside the seabed mud layer, bearing the vertical self-weight and downward pressure load of wind turbine 3, and restraining the vertical settlement of tower 2. It is the vertical load-bearing base of the entire wind power foundation. Tower 2 serves as the supporting carrier of wind turbine 3, transmitting the wind load and self-weight load of wind turbine 3 to the lower steel pipe column 1 and the external anchoring components (including anchor piles 4, anchor cables 5, and clamps 6). During the operation of wind turbine 3, it is subjected to the lateral thrust and overturning moment of sea wind, which are the main sources of external loads on the structure. Clamps 6 are tightly fixed to the outer wall of tower 2, serving as the centralized connection point for multiple sets of anchor cables 5. The tensile stress of multiple anchor cables 5 is dispersed to avoid local stress concentration and deformation or damage to the tower 2; the anchor pile 4 adopts a torpedo anchor structure, which provides anchoring reaction force by relying on its own interlocking friction and soil gripping force with the surrounding seabed (seabed mud layer) after sinking into the seabed mud layer; the anchor cables 5 are made of high-strength anti-corrosion steel wire rope / anchor chain material and are arranged in an oblique tensioning manner to transfer the lateral wind pressure and overturning tension on the tower 2 to the multiple sets of deeply buried anchor piles 4 in the outer perimeter; the tensioner 7 is used to tighten the anchor cables 5 in the later stage, accurately control the pre-tightening tension of each anchor cable 5, so that multiple sets of oblique cables can synchronously form a ring prestressed constraint system.

[0021] In actual use, the wind turbine 3 will generate horizontal lateral thrust and overturning moment under the action of sea wind. The load is transmitted downward through the tower 2 to the steel pipe column 1 and the clamp 6. The steel pipe column 1 bears the vertical load by being embedded in the seabed. Multiple sets of anchor piles 4 arranged in a ring and evenly distributed rely on the anchoring effect of the seabed soil. The tower 2 is pulled in the opposite direction by the anchor cable 5. The symmetrical oblique tension in multiple directions cancels the lateral displacement trend of the tower 2. The prestress formed by the tensioner 7 can counteract the structural loosening caused by the alternating load of wind and waves. The position of the tower 2 is locked from three dimensions: vertical, horizontal and anti-overturning, which greatly improves the ability of offshore wind power foundation to resist wind and waves and uneven settlement of the seabed.

[0022] Example 2; refer to Figure 2 and Figure 3The structure shown is a construction device for offshore wind power anchor-type pile foundations, used to deploy anchor piles 4 into the seabed mud layer. The construction device includes a buoy 10 and multiple sets of rings 11 corresponding to the tail fins of the anchor piles 4. The multiple sets of rings 11 are spaced apart around the circumference of the buoy 10. Each set of rings 11 has a connecting rod 12 connected to the side of the surface near the anchor pile 4. The end of the connecting rod 12 away from the ring 11 is connected to the tail fin of the corresponding anchor pile 4 through a pin 13. The surfaces of the multiple sets of rings 11 are connected to a mounting frame 14. The mounting frame 14 is equipped with a pin-pulling assembly 8. After the pin-pulling assembly 8 pulls the multiple sets of pins 13 out of the tail fins of the anchor piles 4, the anchor piles 4 sink from the sea surface into the seabed mud layer due to their own weight.

[0023] In this embodiment, the anchor pile 4 is a torpedo anchor. The anchor pile 4 includes an anchor body and multiple sets of tail fins evenly distributed along the circumference of the anchor body (at least three sets are provided). The lower end of the anchor body is cone-shaped, and the multiple sets of tail fins are fixedly connected to the surface of the anchor body near the upper end.

[0024] Furthermore, the surfaces of multiple sets of ring sleeves 11 are connected to a ring cylinder 15, which covers the outside of the anchor pile 4. The surface of the ring cylinder 15 is provided with a reserved slot 16 for placing the anchor cable 5.

[0025] It should be noted that the ring cylinder 15 is wrapped around the anchor pile 4 to prevent the anchor pile 4 from shaking or bumping during the sea transfer. The reserved gap 16 provides space for the anchor cable 5 to pass through. When the anchor pile 4 sinks, the anchor cable 5 can be freely lowered along the reserved gap 16 to avoid the anchor cable 5 getting stuck or tangled.

[0026] refer to Figure 4 As shown in the partial structure, the float 10 is arranged in a circular shape. Each set of ring sleeves 11 passes through the central hole of the float 10 and is fixedly arranged on the outer side of the float 10. The mounting frame 14 includes an upper mounting plate 141 and a lower mounting plate 142 arranged at the top and bottom. The upper mounting plate 141 and the lower mounting plate 142 are both fixedly connected to the ring sleeves 11 and are coaxial with the float.

[0027] The float 10 is shaped like a swimming ring, and its interior is hollow and filled with gas, allowing it to float on the sea surface.

[0028] refer to Figure 5 As shown in the partial structure, each set of connecting rods 12 has a wing slot 121 on its surface, a socket on its surface, and a hole on its surface. The tail wing of the anchor pile 4 is inserted into the corresponding wing slot 121 so that the socket corresponds to the socket. The pin 13 passes through the corresponding socket and socket, and one end of the pin 13 is fixedly connected to the drive end of the pin pulling assembly 8.

[0029] refer to Figure 4 and Figure 5The structure shown includes a drive component 81, a drive disk 82, a transmission disk 83, and multiple sets of limiting rods 84. The drive disk 82 is located between the upper mounting plate 141 and the lower mounting plate 142 and is fixedly connected to the drive end of the drive component 81. One end of the limiting rod 84 is fixedly connected to the surface of the drive disk 82, and the other end of the limiting rod 84 passes through the lower mounting plate 142 and is connected to the transmission disk 83. Multiple sets of fixing plates 85 corresponding to the pins 13 are fixedly connected to the surface of the transmission disk 83 away from the limiting rods 84. The surface of the fixing plate 85 is provided with a groove 86, and a drive rod 87 is slidably connected in the groove 86. One end of the pin 13 is fixedly connected to the corresponding drive rod 87.

[0030] Specifically, a locking block 29 is connected to the surface of the pin 13 away from the drive rod 87. The tensile breaking load of the locking block 29 is less than the pull-out force of the pin 13. The locking block 29 can be inserted into the pin 13 or welded to the pin 13. When the pin pulling assembly 8 pulls out the pin 13, the locking block 29 will break first, and then the pin 13 will be pulled off the tail wing of the anchor pile 4.

[0031] Among them, drive component 81 is an electric push rod, hydraulic cylinder, pneumatic cylinder, etc. with waterproof and corrosion-resistant properties.

[0032] In actual use, after the movable anchor pile 4 reaches the preset position, the drive component 81 is activated. The drive component 81 drives the drive disc 82 to move down. The drive disc 82 drives the transmission disc 83 to move down through the limit rod 84. The transmission disc 83 drives the fixed plate 85 to move down. With the cooperation of the inclined groove 86 and the drive rod 87, the drive rod 87 drives the pin 13 to disengage from the insertion hole of the tail wing of the anchor pile 4.

[0033] It should be noted that multiple sets of drive rods 87 pull the pins 13 simultaneously, causing multiple sets of pins 13 to disengage from the insertion holes of the tail wing of the anchor pile 4 simultaneously, ensuring that the anchor pile 4 sinks vertically.

[0034] refer to Figure 3 and Figure 6 As shown in the partial structure, multiple sets of rings 11 are connected to a support frame 17. A water pump 18 is installed on the support frame 17. The pumping end of the water pump 18 is connected to a water pipe 19. The anchor pile 4 is hollow inside. An opening 20 is opened at the upper end of the anchor pile 4. Multiple through holes 21 are opened on the surface of the anchor pile 4 near the lower end. Both the opening 20 and the through holes 21 are connected to the inside of the anchor pile 4. A pipe seat 22 is installed in the opening 20 of the anchor pile 4. The end of the water pipe 19 away from the water pump 18 is connected to the pipe seat 22. The pipe seat 22 is provided with an unlockable and lockable connection mechanism. When the connection mechanism is locked, it connects the pipe seat 22 and the anchor pile 4. After the anchor pile 4 is inserted into the seabed mud layer, the connection mechanism is unlocked to disconnect the connection between the pipe seat 22 and the anchor pile 4.

[0035] The end of the water pipe 19 away from the water pump 18 passes through the central hole of the float 10.

[0036] Specifically, the support frame 17 has multiple sets of circumferentially arranged ear plates fixedly connected to the side surface (i.e., the upper surface) away from the ring 11. The ear plates can be connected to the tugboat by a hoisting rope. In actual use, the entire construction device can be moved to the preset position of the anchor pile 4 on the outer side of the tower 2 by the tugboat.

[0037] It should be noted that when anchor pile 4 falls into the seabed mud layer due to its own weight, it may not be inserted into the preset depth of the mud layer. At this time, the following two situations may occur: First, the anchor pile 4 is not inserted deep enough, that is, only the lower end of the anchor body is inserted into the mud layer, and part of it is exposed above the mud layer, which does not reach the preset depth; Second, the anchor pile 4 sinks too much and is inserted too deep into the mud layer, that is, the anchor pile 4 continues to sink beyond the preset depth.

[0038] In actual use, during the sinking process of anchor pile 4, seawater will enter the interior of anchor pile 4 through through hole 21. If the first situation occurs, water pump 18 is started, and water pump 18 pumps the seawater out of the interior of anchor pile 4 through water pipe 19. At this time, the mud near the lower end of anchor pile 4 in the seabed mud layer will enter the interior of anchor pile 4 through through hole 21, so that anchor pile 4 can continue to sink until anchor pile 4 reaches the preset depth of the preset point. At this time, the connecting mechanism is activated to separate pipe seat 22 from anchor pile 4, so as to retrieve water pipe 19 and pipe seat 22. If the second situation occurs, the connecting mechanism can also separate pipe seat 22 from anchor pile 4 in time, thereby preventing water pipe 19 from being damaged.

[0039] refer to Figure 7 and Figure 8 The structure shown includes a rotating ring 23 and a drive assembly 9 for driving the rotating ring 23 to rotate. The rotating ring 23 is rotatably connected to the pipe seat 22. The inner top surface of the anchor pile 4 is connected to the two sides of the pipe seat 22 with external insertion blocks 24. The inner surface of the pipe seat 22 located inside the anchor pile 4 is connected to an inner insertion block 25 corresponding to the external insertion block 24. The external insertion block 24 and the inner insertion block 25 are both provided with a locking strip 26. The two sides of the outer surface of the rotating ring 23 are fixedly connected with a transmission rod 27. The end of the transmission rod 27 away from the rotating ring 23 is rotatably connected to a transmission rod 28. The end of the transmission rod 28 away from the transmission rod 27 is rotatably connected to the end of the corresponding locking strip 26 away from the external insertion block 24.

[0040] refer to Figure 8 and Figure 9The structure shown includes a drive assembly 9 comprising a drive component 98 and a vertical rod 91. A groove 92 is formed on the surface of the tube seat 22. The drive assembly 9 drives the vertical rod 91 to slide along the inner wall of the groove 92. The vertical rod 91 passes through the groove 92. A spiral groove 93 is formed on the surface of the vertical rod 91 inside the anchor pile 4. A rotating ring 23 is sleeved on the outside of the vertical rod 91. A spiral block 94 is fixedly connected to the inner wall of the rotating ring 23. The spiral block 94 slides along the inner wall of the spiral groove 93. A sliding plate 95 is fixedly connected to one end of the vertical rod 91 inside the anchor pile 4. A limiting rod 96 is fixedly connected to one side of the tube seat 22 inside the anchor pile 4. The sliding plate 95 slides along the surface of the limiting rod 96. A return spring 97 is sleeved on the outside of the vertical rod 91. The two ends of the return spring 97 are connected to the rotating ring 23 and the sliding plate 95, respectively.

[0041] Furthermore, the driving component 2 98 is a pull rope. One end of the pull rope is fixedly connected to the end of the vertical rod 91 located outside the anchor pile 4, and the other end passes through the central hole of the float 10 and is connected to the support frame 17. Pulling the pull rope causes the vertical rod to slide along the inner wall of the chute.

[0042] The pull rope can be a high-strength, corrosion-resistant steel wire rope. It is a fixed-length limiting rope that relies on the relative travel caused by the sinking of the anchor pile to achieve pulling, eliminating the need for manual pulling. In actual use, regardless of whether the sinking of the anchor pile 4 occurs in the first or second scenario, when the anchor pile 4 is about to reach the preset depth at the preset point, the pull rope moves upward relative to the sinking of the anchor pile 4. This upward movement of the pull rope will cause the vertical rod 91 to move upward. With the cooperation of the spiral groove 93 and the spiral block 94, the rotating ring 23 will rotate. The rotating ring 23 drives the second transmission rod 28 to move via the first transmission rod 27, thereby causing the locking bar 26 to slide along the inner wall of the inner insert block 25. When the locking bar 26 slides from the inner wall of the outer insert block 24... After exiting, the tube seat 22 will disengage from the opening 20, which is the unlocked state of the connecting mechanism. When it is necessary to connect the tube seat 22 and the anchor pile 4, first pull it upward to unlock the connecting mechanism, then insert the tube seat 22 into the opening 20, and then release the pull rope. Under the action of the return spring 97, the return spring 97 drives the sliding plate 95 to slide downward along the surface of the limiting rod 96 (at least two sets are provided). The sliding plate 95 drives the vertical rod 91 to move downward. With the cooperation of the spiral groove 93 and the spiral block 94, the rotating ring 23 will rotate in the opposite direction, so that the locking bar 26 slides along the inner wall of the inner insert block 25 to insert into the outer insert block 24. At this time, the connecting mechanism is locked.

[0043] It should be noted that this connection mechanism ensures that even in the second situation when the anchor pile 4 sinks, the pipe seat 22 can be disengaged from the anchor pile 4 in time, and the water pipe 19 will not be damaged due to excessive sinking of the anchor pile 4.

[0044] It should be further explained that the upper mounting plate 141, the lower mounting plate 142, the drive disc 82, and the transmission disc 83 are all in the shape of a ring, and the water pipe 19 and the pull rope can pass through the middle of the upper mounting plate 141, the lower mounting plate 142, the drive disc 82, and the transmission disc 83.

[0045] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A type of anchored pile foundation structure for offshore wind power, characterized in that, It includes steel pipe columns, towers, anchor piles, anchor cables, and clamps. The steel pipe columns are vertically embedded in the seabed mud layer, with the top of the steel pipe columns extending out of the seabed mud surface. The bottom of the tower is fixedly connected to the top of the steel pipe columns, and a fan is installed at the top of the tower. The anchor piles are vertically buried deep in the seabed mud layer and are arranged in multiple sets. The multiple sets of anchor piles are evenly spaced around the central axis of the tower. The clamp is fixedly sleeved on the outer wall of the tower. Multiple sets of anchor cables corresponding to the anchor piles are connected to the outer wall of the clamp. Tensioners are installed on the anchor cables. The anchor cables extend downward at an angle from the clamp. The lower end of the anchor cable is connected to the top of the corresponding anchor pile. The multiple sets of anchor cables are inclined and tensioned to limit the tower.

2. A construction device for offshore wind power anchored pile foundations, used in the offshore wind power anchored pile foundation structure described in claim 1, characterized in that, The system includes a buoy and multiple sets of rings corresponding to the tail fins of the anchor pile. The multiple sets of rings are spaced apart around the circumference of the buoy. Each set of rings has a connecting rod connected to the side of the surface near the anchor pile. The end of the connecting rod away from the ring is connected to the corresponding tail fin of the anchor pile via a pin. The surfaces of the multiple sets of rings are connected to a mounting frame. The mounting frame is equipped with a pin-pulling assembly. After the pin-pulling assembly pulls the multiple sets of pins out of the tail fin of the anchor pile, the anchor pile sinks from the sea surface into the seabed mud layer due to its own weight.

3. The offshore wind power anchored pile foundation construction device according to claim 2, characterized in that: Multiple sets of ring sleeves are connected to a common ring cylinder, which is placed on the outside of the anchor pile. The surface of the ring cylinder is provided with a reserved slot for placing the anchor cable.

4. The offshore wind power anchored pile foundation construction device according to claim 3, characterized in that: The pontoon is arranged in a ring shape, and each set of rings passes through the central hole of the pontoon and is fixed on the outer side of the pontoon. The mounting frame includes an upper mounting plate and a lower mounting plate arranged vertically, and the upper mounting plate and the lower mounting plate are coaxial with the pontoon.

5. The offshore wind power anchored pile foundation construction device according to claim 3, characterized in that: The anchor pile consists of an anchor body and multiple sets of tail wings. The multiple sets of tail wings are circumferentially connected to the surface of the anchor body. Each set of connecting rods has a wing slot on its surface and an insertion port on its surface. The anchor pile tail wings have insertion holes on their surfaces. The anchor pile tail wings are inserted into the corresponding wing slots so that the insertion holes correspond to the insertion ports. The pins are inserted into the corresponding insertion holes and insertion ports. One end of the pins is fixedly connected to the drive end of the pin-pulling assembly.

6. The offshore wind power anchored pile foundation construction device according to claim 3, characterized in that: The pin-pulling assembly includes a drive component, a drive disk, a transmission disk, and multiple sets of limiting rods. The drive disk is located between the upper mounting plate and the lower mounting plate and is fixedly connected to the drive end of the drive component. One end of the limiting rod is fixedly connected to the surface of the drive disk, and the other end of the limiting rod passes through the lower mounting plate and is connected to the transmission disk. Multiple sets of fixing plates corresponding to the pins are fixedly connected to the surface of the transmission disk away from the limiting rods. The surface of the fixing plate is provided with an inclined groove, and a drive rod is slidably connected in the inclined groove. One end of the pin is fixedly connected to the corresponding drive rod.

7. The offshore wind power anchored pile foundation construction device according to claim 2, characterized in that: The surfaces of multiple sets of rings are connected to a support frame, on which a water pump is installed. The pumping end of the water pump is connected to a water pipe. The anchor pile is hollow inside, with an opening at the upper end. Multiple sets of through holes are opened on the surface of the anchor pile near the lower end. The opening and through holes communicate with the interior of the anchor pile. A pipe seat is installed in the opening of the anchor pile. The end of the water pipe away from the water pump is connected to the pipe seat. A connecting mechanism is installed on the pipe seat to connect the pipe seat and the anchor pile.

8. The offshore wind power anchored pile foundation construction device according to claim 7, characterized in that: The connecting mechanism includes a rotating ring and a driving assembly for driving the rotating ring to rotate. The rotating ring is rotatably connected to the pipe seat. The inner top surface of the anchor pile is connected to the outer insert blocks on both sides of the pipe seat. The inner surface of the pipe seat located inside the anchor pile is connected to the inner insert block, which is correspondingly arranged with the outer insert block. The outer insert block and the inner insert block are both provided with a locking strip. The two sides of the outer surface of the rotating ring are fixedly connected to the transmission rod one. The end of the transmission rod one away from the rotating ring is rotatably connected to the transmission rod two. The end of the transmission rod two away from the transmission rod one is rotatably connected to the end of the corresponding locking strip away from the outer insert block.

9. The offshore wind power anchored pile foundation construction device according to claim 8, characterized in that: The driving assembly includes a second driving component and a vertical rod. A groove is formed on the surface of the tube base. The driving assembly drives the vertical rod to slide along the inner wall of the groove. The vertical rod passes through the groove. A spiral groove is formed on the surface of the vertical rod inside the anchor pile. A rotating ring is sleeved on the outside of the vertical rod. A spiral block is fixedly connected to the inner wall of the rotating ring. The spiral block slides along the inner wall of the spiral groove. A sliding plate is fixedly connected to one end of the vertical rod inside the anchor pile. A limiting rod is fixedly connected to one side surface of the tube base inside the anchor pile. The sliding plate slides along the surface of the limiting rod. A return spring is sleeved on the outside of the vertical rod. The two ends of the return spring are respectively connected to the rotating ring and the sliding plate.

10. A construction device for offshore wind power anchored pile foundations according to claim 9, characterized in that: The second driving component is a pull rope. One end of the pull rope is fixedly connected to the end of the vertical rod located outside the anchor pile, and the other end passes through the central hole of the buoy and is connected to the support frame. Pulling the pull rope causes the vertical rod to slide along the inner wall of the chute.

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