Adjustable guide cylinder structure of offshore wind power pile sinking guide frame pile stabilizing platform

Abstract

The utility model discloses an adjustable guide cylinder structure of an offshore wind power pile sinking guide frame pile stabilizing platform, which comprises a pile stabilizing platform main body, a plurality of guide cylinder assemblies distributed on the peripheral side of the pile stabilizing platform main body and a plurality of limiting cylinder assemblies, the limiting cylinder assembly and the guide cylinder assembly are vertically communicated and fixed through a detachable locking piece, and the position of the limiting cylinder assembly can be adjusted in the length direction of the guide groove. By means of the design, the guiding precision and stability are effectively improved, it is ensured that the steel pipe pile is accurately installed under the complex sea condition, and the construction efficiency and safety are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of offshore wind power construction, and in particular to an adjustable guide tube structure for an offshore wind power pile driving guide frame stabilization platform. Background Technology

[0002] The pile driving operation for the four-pile jacket foundation of offshore wind power is one of the key steps in the construction of stationary offshore wind power projects. With the rapid development of offshore wind power projects, different sea conditions and engineering requirements have placed higher demands on pile driving equipment. Traditional pile driving methods and technologies exhibit high stability under single working conditions, effectively ensuring the precise positioning and installation of steel pipe piles, thereby guaranteeing the safety and reliability of offshore wind power facilities. However, as the scale of offshore wind power projects continues to expand, the complex and ever-changing marine environment is placing increasingly higher demands on pile driving equipment.

[0003] Currently, in offshore wind power construction, common pile driving guide frames and stabilization platforms mainly feature fixed root opening dimensions. Specifically, these platforms typically use a fixed guide tube spacing, meaning the distance between the centers of adjacent or diagonally opposite guide tubes is not adjustable. To adapt to different working conditions, traditional methods also include using guide tube assemblies of various specifications and meeting different root opening size requirements by replacing different guide tubes. Another common method is to install multiple movable guide tube supports on the platform, achieving a degree of flexibility by adjusting the positions of these supports. While these methods solve some problems to a certain extent, they still have limitations.

[0004] Existing fixed four-pile stabilization platforms, due to their structural characteristics, struggle to handle situations where multiple steel pipe piles of varying sizes exist simultaneously within a single wind farm. This necessitates frequent replacement of guide tubes of different specifications in practical applications, increasing operational complexity and time costs, and potentially impacting construction efficiency and safety. This deficiency is particularly pronounced in large-scale offshore wind power projects, highlighting the urgent need for a solution that allows for flexible adjustment of guide tube spacing without altering the overall structure. Summary of the Invention

[0005] To accommodate different root opening sizes, this application provides an adjustable guide cylinder structure for an offshore wind power pile driving guide frame stabilization platform.

[0006] The adjustable guide cylinder structure of the offshore wind power pile driving guide frame stabilization platform provided in this application adopts the following technical solution:

[0007] An adjustable guide cylinder structure for an offshore wind power pile driving guide frame stabilization platform includes a stabilization platform body, several guide cylinder assemblies distributed around the stabilization platform body, and several limiting cylinder assemblies. Each guide cylinder assembly has a vertically penetrating guide groove through which steel pipe piles can pass. The guide groove extends along the root opening direction of two diagonally opposite steel pipe piles. The limiting cylinder assemblies correspond one-to-one with the guide cylinder assemblies. The limiting cylinder assemblies are vertically connected to their corresponding guide cylinder assemblies, and detachable locking fasteners are provided between the limiting cylinder assemblies and their corresponding guide cylinder assemblies. The limiting cylinder assemblies limit the position of the steel pipe piles, and their positions can be adjusted along the length of the guide groove.

[0008] By adopting the above technical solution, the guide tube assembly can flexibly adjust the position of the limiting tube assembly according to the root opening distance of the steel pipe pile, thereby adapting to pile driving operations with different root opening sizes. The limiting tube assembly at the upper end of the guide tube assembly not only effectively limits the steel pipe pile but also ensures that the steel pipe pile remains vertical and stable during insertion, improving pile driving accuracy and construction efficiency. Simultaneously, detachable locking fasteners are provided between the limiting tube assembly and the corresponding guide tube assembly, allowing the limiting tube assembly to be adjusted in position along the length of the guide groove and then locked. This gives the platform high versatility and flexibility, reducing the cost and time associated with frequent equipment replacements due to different root opening sizes.

[0009] Preferably, the guide tube assembly includes two connecting tubes distributed vertically, and the limiting tube assembly includes an upper cone tube and a lower cone tube. The upper cone tube and the lower cone tube are detachably connected to the upper part of the two connecting tubes respectively. The steel pipe pile passes through the upper cone tube, the connecting tube above, the lower cone tube and the connecting tube below in sequence from top to bottom to complete the pile driving operation vertically downward.

[0010] By adopting the above technical solution, the upper and lower cone cylinders are detachably connected to the upper parts of the two connecting cylinders, allowing for quick replacement of the appropriate cone cylinder according to different root opening sizes, thus improving construction efficiency. The steel pipe pile passes through the upper cone cylinder, the upper connecting cylinder, the lower cone cylinder, and the lower connecting cylinder sequentially from top to bottom, ensuring precise guidance and positioning of the steel pipe pile during the pile driving process, guaranteeing the pile's verticality and relative position accuracy. The detachable design also simplifies maintenance and upkeep, reduces operating costs, and extends the equipment's service life.

[0011] Preferably, the connecting cylinder includes a proximal semi-circular arc plate, a distal semi-circular arc plate, and two side plates. The proximal semi-circular arc plate and the distal semi-circular arc plate are arranged opposite to each other, and the diameter of the circle containing the proximal semi-circular arc plate is smaller than the diameter of the circle containing the distal semi-circular arc plate. The ends of the proximal semi-circular arc plate and the distal semi-circular arc plate are connected by the side plates. The side plates are tangent to the circles containing the proximal and distal semi-circular arc plates. The proximal semi-circular arc plate, the distal semi-circular arc plate, and the two side plates enclose and form the outline of the guide groove.

[0012] By adopting the above technical solution, the design of the near-end and far-end semi-circular arc plates allows the two ends of the guide groove profile to adapt to steel pipe piles with the smallest and largest pile diameters actually used. The tangential transition between the two side plates and the circles containing the two semi-circular arc plates not only ensures the overall stability and strength of the structure but also allows the guide cylinder assembly to flexibly adapt to steel pipe piles of any diameter from the smallest to the largest without altering the overall structure, thus improving construction flexibility and efficiency. This structural design simplifies the on-site installation and commissioning process and reduces maintenance costs.

[0013] Preferably, a connecting flange is provided at the outer edge of the upper end of the connecting cylinder, the connecting flange extends along the contour direction of the guide groove, and the lower part of both the upper and lower cone cylinders is provided with a detachable variable diameter adjusting flange adapted to the corresponding connecting flange. The detachable locking fastener is a bolt, and the connecting flange and the detachable variable diameter adjusting flange are connected by bolts.

[0014] By adopting the above technical solution, by setting a connecting flange at the outer edge of the upper end of the connecting cylinder, and by setting a detachable variable diameter adjusting flange at the lower part of both the upper and lower cone cylinders that is compatible with the corresponding connecting flange, it is easy to stabilize the limiting cylinder assembly at the corresponding position of the guide cylinder assembly, and to easily disassemble and adjust it, thereby adapting to different construction needs.

[0015] Preferably, the upper and lower conical cylinders have the same inner diameter and are flared structures that are wider at the top and narrower at the bottom.

[0016] By adopting the above technical solution, the flared structure of the upper and lower conical cylinders can effectively guide the steel pipe piles smoothly into the guide groove, reducing possible deviations during pile driving and improving pile driving accuracy. At the same time, this structural design makes it easier to align and insert the steel pipe piles into the guide cylinder assembly, reducing construction difficulty and improving work efficiency.

[0017] Preferably, the outer peripheral wall of the guide cylinder assembly is provided with cylinder stiffeners.

[0018] By adopting the above technical solution, the outer peripheral wall of the guide tube assembly is provided with tube stiffeners, which improves the overall rigidity and stability of the guide tube. During the pile driving process, the guide tube can be effectively prevented from deforming, ensuring the accurate guidance and positioning of the steel pipe pile, thereby improving the construction quality and efficiency.

[0019] Preferably, the outer peripheral wall of the limiting cylinder assembly is provided with a conical rib.

[0020] By adopting the above technical solution, the outer peripheral wall of the limiting cylinder assembly is provided with a conical stiffening plate, which can significantly enhance the structural strength and stability of the limiting cylinder, ensuring that deformation and damage can be effectively prevented in complex marine environments, and improving the safety and reliability of pile driving operations. At the same time, the design of the conical stiffening plate can also improve the overall rigidity of the entire pile stabilization platform, further ensuring the accurate positioning and verticality of the steel pipe piles during the pile driving process.

[0021] Preferably, a connecting steel pipe is provided between the main body of the pile stabilizing platform and the guide tube assembly.

[0022] By adopting the above technical solution, the connecting steel pipe can enhance the connection strength and stability between the main body of the pile stabilization platform and the guide tube assembly, ensuring reliability and safety under complex sea conditions. At the same time, the connecting steel pipe can also effectively transfer and disperse the stress generated during pile driving, reduce structural damage caused by excessive local stress, and improve the service life of the entire system.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By combining the guide tube assembly and the limiting tube assembly, the spacing between the guide tubes is adjustable, thereby adapting to steel pipe piles with different root opening sizes and improving the applicability and flexibility of the pile stabilization platform;

[0025] 2. The design of the detachable locking fasteners allows the position of the limit cylinder assembly to be adjusted along the length of the guide groove, further enhancing the platform's adaptability to complex marine environments and improving construction efficiency and safety;

[0026] 3. The upper and lower cones act as limiting devices, which can precisely control the vertical sinking process of the steel pipe piles, ensuring the accuracy and reliability of the pile driving operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an adjustable guide tube structure for an offshore wind power pile driving guide frame stabilization platform according to an embodiment of this application.

[0028] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0029] Figure 3This is a plan view of the connecting cylinder guide groove in the adjustable guide cylinder structure of an adjustable guide cylinder structure of an offshore wind power pile driving guide frame stabilization platform according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Main body of the stabilizing platform; 2. Connecting steel pipe; 3. Guide cylinder assembly; 31. Connecting cylinder; 311. Far-end semi-circular arc plate; 312. Near-end semi-circular arc plate; 313. Side plate; 32. Guide groove; 33. Connecting flange; 4. Cylinder stiffener; 5. Limiting cylinder assembly; 51. Upper cone cylinder; 52. Lower cone cylinder; 6. Cone cylinder stiffener. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses an adjustable guide cylinder structure for an offshore wind power pile driving guide frame stabilization platform, referring to... Figure 1 and Figure 2 The system includes a main pile stabilization platform 1, several guide cylinder assemblies 3 distributed around the main pile stabilization platform 1, and several limiting cylinder assemblies 5. Each guide cylinder assembly 3 has a vertically penetrating guide groove 32 through which steel pipe piles can pass. The guide groove 32 extends along the root opening direction of two diagonally opposite steel pipe piles. Each limiting cylinder assembly 5 corresponds one-to-one with a guide cylinder assembly 3, and the limiting cylinder assembly 5 is vertically connected to its corresponding guide cylinder assembly 3. A detachable locking fastener is installed between the limiting cylinder assembly 5 and its corresponding guide cylinder assembly 3. The limiting cylinder assembly 5 serves to limit the movement of the steel pipe piles, and its position can be adjusted along the length of the guide groove 32. This design allows the platform to adapt to steel pipe piles with different root opening sizes, improving construction flexibility and efficiency.

[0033] In this embodiment, the main body of the pile stabilization platform includes a frame and a working platform detachably connected to the top of the frame. The frame of the main body of the pile stabilization platform is mainly composed of four vertically arranged main legs and several steel pipes. The main legs are steel pipe structures that allow for the insertion of auxiliary piles. The four main legs are located at the four corners of the frame 1, and adjacent main legs are securely connected by steel pipes.

[0034] In this embodiment, there are four guide cylinder assemblies 3, which are respectively installed on the four main legs of the main body of the pile stabilization platform. Each guide cylinder assembly 3 includes two connecting cylinders 31 distributed vertically, and the connecting cylinders 31 are fixed to the main legs by steel pipes. The upper and lower connecting cylinders 31 are also reinforced with steel pipes.

[0035] Reference Figure 2 and Figure 3In this embodiment, the connecting cylinder 31 includes a proximal semi-circular arc plate 312, a distal semi-circular arc plate 311, and two side plates 313. The proximal semi-circular arc plate 312 and the distal semi-circular arc plate 311 are arranged opposite each other, and the diameter of the circle containing the proximal semi-circular arc plate 312 is smaller than the diameter of the circle containing the distal semi-circular arc plate 311. In addition, the proximal semi-circular arc plate 312 is close to the main leg of the pile stabilization platform body, and the distal semi-circular arc plate 311 is far away from the main leg of the pile stabilization platform body. The end of the proximal semi-circular arc plate 312 and the end of the distal semi-circular arc plate 311 are connected by the side plates 313, and the side plates 313 are tangent to the circles containing both the proximal and distal semi-circular arc plates 312 and 311. The proximal semi-circular arc plate 312, the distal semi-circular arc plate 311, and the two side plates 313 enclose and form the outline of the guide groove 32. The design of the near-end semi-circular arc plate 312 and the far-end semi-circular arc plate 311 allows the two ends of the guide groove 32 contour to adapt to steel pipe piles with the smallest and largest pile diameters actually used. The two side plates 313 tangentially transition to the circles containing the two semi-circular arc plates, ensuring not only the overall stability and strength of the structure but also allowing the guide cylinder assembly 3 to flexibly adapt to steel pipe piles of any diameter from the smallest to the largest without altering the overall structure, thus improving construction flexibility and efficiency. This structural design simplifies on-site installation and commissioning, and reduces maintenance costs. In this embodiment, it can accommodate piles with a maximum diameter of 4.0m and a minimum diameter of 3.0m.

[0036] In this embodiment, the limiting cylinder assembly 5 includes an upper cone cylinder 51 and a lower cone cylinder 52. The upper cone cylinder 51 and the lower cone cylinder 52 are detachably connected to the upper parts of the two connecting cylinders 31. The steel pipe pile passes through the upper cone cylinder 51, the upper connecting cylinder 31, the lower cone cylinder 52, and the lower connecting cylinder 31 sequentially from top to bottom to complete the pile driving operation vertically downwards. This design allows the guide cylinder assembly 3 to be easily disassembled and adjusted, thereby adapting to different construction needs. Specifically, a connecting flange 33 is provided at the upper end of the connecting cylinder 31. The connecting flange 33 extends along the contour direction of the guide groove 32. The upper cone cylinder 51 and the lower cone cylinder 52 have the same inner diameter and are both flared structures with a wider upper end and a narrower lower end. The upper cone cylinder 51 and the lower cone cylinder 52 with the same inner diameter are prefabricated and adapted to the outer diameter of the steel pipe pile. A detachable variable diameter adjusting flange adapted to the connecting flange 33 at the corresponding position in the guide groove 32 is provided at the lower part of the upper cone cylinder 51 and the lower cone cylinder 52. The detachable locking fastener is a bolt. The connecting flange 33 and the detachable variable diameter adjusting flange are connected by bolts, so as to facilitate the fixation of the limiting cylinder assembly 5 in the corresponding position of the guide cylinder assembly 3.

[0037] In this embodiment, the outer peripheral wall of the guide cylinder assembly 3 is provided with a cylinder stiffener 4, the outer peripheral wall of the limiting cylinder assembly 5 is provided with a conical stiffener 6, and a connecting steel pipe 2 is provided between the main body 1 of the pile stabilizing platform and the guide cylinder assembly 3 to improve the structural strength of each component of the guide frame pile stabilizing platform.

[0038] In this embodiment, when the required pile root opening is 30m, the upper cone 51 and the lower cone 52 are fixedly connected to the connecting flange 33 of the connecting cylinder 31 at the 30m root opening position by high-strength bolts, which can accommodate a maximum pile diameter of 4.0m for steel pipe piles; when the root opening is 35m, the upper cone 51 and the lower cone 52 are fixedly connected to the connecting flange 33 of the connecting cylinder 31 at the 35m root opening position by high-strength bolts, which can accommodate a maximum pile diameter of Ф5.0m for steel pipe piles.

[0039] By replacing the cones of different diameters and root openings according to different steel pipe pile diameters, the system can accommodate the introduction, positioning, and driving of steel pipe piles with diameters ranging from 4 to 5 meters. The upper cone 51 and lower cone 52 are easy and quick to disassemble, resulting in low maintenance costs and high construction efficiency. This allows for pile driving operations on steel pipe piles with different root openings and diameters. The cones control the position of the steel pipe piles, ensuring their verticality and relative positional accuracy.

[0040] The implementation principle of the adjustable guide tube structure of the offshore wind power pile driving guide frame stabilization platform in this application embodiment is as follows:

[0041] S2: Lifting and Positioning of the Stabilizing Platform Main Body: The transport vessel carries the main body of the stabilizing platform to the construction area, and then the crane vessel lifts the main body of the stabilizing platform onto the seabed. The overall levelness of the main body of the stabilizing platform is then re-measured using a level or laser theodolite. Next, the auxiliary piles at the main legs at the four corners of the stabilizing platform are driven into place. The measurement points are selected on the crossbeams near the four auxiliary piles of the guide frame. After the measurement work is completed, the auxiliary pile at the highest point is driven first using a vibratory hammer until it meets the design requirements. Then, the diagonal auxiliary pile is driven. This process is repeated until all four auxiliary piles are driven using a vibratory hammer.

[0042] S3: Steel pipe pile driving construction: When the steel pipe pile transport ship arrives at the construction sea area, the crane ship lifts the steel pipe pile. The steel pipe pile passes through the limiting cylinder assembly 5 and the guide cylinder assembly 3 from top to bottom. Then, under the guidance of the limiting cylinder assembly 5 and the guide cylinder assembly 3, the pile driving construction is completed.

[0043] S4: Construction of lifting off the main body of the pile stabilization platform: After all the steel pipe piles around the main body of the pile stabilization platform have been driven, the auxiliary piles and the main body of the pile stabilization platform are lifted off the steel pipe piles in sequence so that the main body of the pile stabilization platform can be used for the next set of steel pipe pile driving construction.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable guide cylinder structure of a pile guide frame of a pile stabilizing platform of an offshore wind power pile sinking, characterized in that: The utility model provides a kind of steel pipe pile sinking device, including steady pile platform main body (1), several guide cylinder assemblies (3) distributed in the steady pile platform main body (1) side and several limiting cylinder assemblies (5), the guide cylinder assembly (3) vertically penetrates the guide slot (32) that can be passed through by steel pipe pile, the guide slot (32) extends along the root opening direction of diagonal two steel pipe piles, several limiting cylinder assemblies (5) correspond to several guide cylinder assemblies (3), the limiting cylinder assembly (5) is communicated with the corresponding guide cylinder assembly (3) up and down, and the limiting cylinder assembly (5) and the corresponding guide cylinder assembly (3) between it is provided with detachable locking piece, the limiting cylinder assembly (5) is limited to steel pipe pile, the limiting cylinder assembly (5) can be adjusted position in the length direction of guide slot (32).

2. An adjustable guide cylinder structure for a pile guiding platform of a pile guiding frame for offshore wind power, according to claim 1, characterized in that: The guide cylinder assembly (3) includes two upper and lower connection cylinders (31), the limiting cylinder assembly (5) includes upper cone cylinder (51) and lower cone cylinder (52), the upper cone cylinder (51) and the lower cone cylinder (52) are detachably connected to the upper portions of the two connection cylinders (31), and the steel pipe pile passes through the upper cone cylinder (51), the upper connection cylinder (31), the lower cone cylinder (52) and the lower connection cylinder (31) in turn from top to bottom to complete the pile sinking operation vertically downward.

3. An adjustable guide cylinder structure for a pile guiding platform of a pile guiding frame for offshore wind power, according to claim 2, characterized in that: The connection cylinder (31) includes a proximal end semicircular arc plate (312), a distal end semicircular arc plate (311) and two side plates (313), the proximal end semicircular arc plate (312) is arranged opposite to the distal end semicircular arc plate (311), the diameter of the circle on which the proximal end semicircular arc plate (312) is located is smaller than the diameter of the circle on which the distal end semicircular arc plate (311) is located, the end portion of the proximal end semicircular arc plate (312) is connected to the end portion of the distal end semicircular arc plate (311) through the side plate (313), the side plate (313) is tangent to the circle on which the proximal end semicircular arc plate (312) is located and the circle on which the distal end semicircular arc plate (311) is located, and the proximal end semicircular arc plate (312), the distal end semicircular arc plate (311) and the two side plates (313) enclose the profile of the guide slot (32).

4. An adjustable guide cylinder structure for a pile guiding platform of a jacket foundation of an offshore wind turbine according to claim 3, characterized in that: A connecting flange (33) is arranged at the outer edge of the upper end of the connection cylinder (31), the connecting flange (33) extends along the profile direction of the guide slot (32), the lower portions of the upper cone cylinder (51) and the lower cone cylinder (52) are each provided with a detachable variable-diameter adjusting flange that is adapted to the corresponding connecting flange (33), and the detachable locking piece is a bolt.

5. The adjustable guide cylinder structure of the offshore wind power pile driving guide frame pile stabilizing platform according to claim 3, characterized in that: The upper cone cylinder (51) and the lower cone cylinder (52) have the same inner diameter and have a trumpet structure with a wide upper end and a narrow lower end.

6. The adjustable guide cylinder structure of the offshore wind power pile driving guide frame pile stabilizing platform according to claim 1, characterized in that: The outer peripheral wall of the guide cylinder assembly (3) is provided with a cylinder body rib plate (4).

7. The adjustable guide cylinder structure of the offshore wind power pile driving guide frame pile stabilizing platform according to claim 1, characterized in that: The outer peripheral wall of the limiting cylinder assembly (5) is provided with a cone cylinder rib plate (6).

8. The adjustable guide cylinder structure of the offshore wind power pile driving guide frame pile stabilizing platform according to claim 1, characterized in that: The connecting steel pipe (2) is arranged between the steady pile platform main body (1) and the guide cylinder assembly (3).

Images