Anti-erosion Installation Mechanism, Installation System and Construction Method for Offshore Wind Power Piles

Abstract

The present invention discloses an anti-erosion installation mechanism, an installation system and a construction method thereof for an offshore wind power pile foundation, which relates to the technical field of offshore wind power. Among them, the anti-erosion installation mechanism for an offshore wind power pile foundation includes an annular hoop and a plurality of pulley groups. The annular hoop forms an accommodating space for accommodating the offshore wind power pile foundation, and the pulley groups are arranged at intervals along the circumferential direction of the annular hoop on the outer side of the annular hoop. When installing the anti-erosion material for the offshore wind power pile foundation by using the anti-erosion installation mechanism of the present invention, the annular hoop is sleeved at the bottom of the offshore wind power pile foundation, and the anti-erosion material is conveyed and installed at the bottom of the offshore wind power pile foundation by means of the pulley groups. Compared with the existing method of all manual installation, the technical solution of the present invention can effectively reduce the construction difficulty of the anti-erosion material, shorten the construction time and improve the construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and particularly relates to an anti-scouring installation mechanism, an installation system and a construction method for an offshore wind power pile foundation. Background Art

[0002] The wind speed in offshore wind farms is high, the wind quality is excellent, the turbulence intensity is small, land resources are saved, and clean, safe and sustainable offshore wind power plays an increasingly important role in the energy strategies of various countries in the world, provides strong support for the development of the global low-carbon economy, becomes an important choice for mankind to cope with future climate change and potential energy crises, and has broad development prospects.

[0003] During the process of the offshore wind power foundation scouring the soil around the foundation, the bearing capacity of the foundation is changing; at the same time, the horizontal bearing capacity of the foundation will decrease as the scouring pit expands. Once the bearing capacity of the foundation is insufficient to support the normal operation of the offshore wind turbine due to the continuous expansion of the scouring pit, accidents such as instability will occur to the entire offshore wind turbine, causing huge economic losses. Therefore, it is of great significance to carry out scouring protection for the wind power pile foundation. At present, anti-scouring materials are usually used to protect the offshore wind power pile foundation. However, currently, all anti-scouring materials are usually installed manually, and due to the influence of sea waves, the construction difficulty is relatively large, the construction time is relatively long, and the construction efficiency is relatively low. Summary of the Invention

[0004] The main object of the present invention is to propose an anti-scouring installation mechanism, an installation system and a construction method for an offshore wind power pile foundation, aiming to reduce the construction difficulty, shorten the construction time and improve the construction efficiency.

[0005] To achieve the above object, an anti-scouring installation mechanism for an offshore wind power pile foundation proposed by the present invention includes:

[0006] An annular clamp, the annular clamp forms a receiving space for receiving an offshore wind power pile foundation; and

[0007] A plurality of pulley groups, the plurality of pulley groups are circumferentially spaced apart on the outer side of the annular clamp.

[0008] In an embodiment, the annular clamp is a circular annular clamp, the circular annular clamp includes a plurality of arc-shaped sub-clamp segments, and the plurality of sub-clamp segments are sequentially connected and enclose to form the receiving space; the pulley group is fixed on the outer side of the sub-clamp segment.

[0009] In one embodiment, both ends of the sub-hoop section are bent outward to form fixing parts, and fixing holes are formed in the fixing parts; the anti-erosion installation mechanism for an offshore wind power pile foundation further includes a plurality of fasteners, and adjacent two sub-hoop sections are fixedly connected through the cooperation of the fixing holes and the fasteners.

[0010] In one embodiment, at least four sub-hoop sections are provided, and at least four pulley groups are provided. One pulley group is correspondingly fixed on the outer side of one sub-hoop section.

[0011] In one embodiment, the pulley group includes a pulley group body and a mounting bracket. The pulley group body is arranged on the mounting bracket, and the mounting bracket is fixed on the outer side of the annular hoop.

[0012] The present invention also provides an anti-erosion installation system for an offshore wind power pile foundation, which is used for installing anti-erosion materials for an offshore wind power pile foundation. The anti-erosion installation system for an offshore wind power pile foundation includes:

[0013] The anti-erosion installation mechanism for an offshore wind power pile foundation as described above, which is used to be sleeved at the bottom of an offshore wind power pile foundation; and

[0014] A conveying system, which cooperates with the anti-erosion installation mechanism to install the anti-erosion materials at the bottom of the offshore wind power pile foundation.

[0015] In one embodiment, the conveying system includes:

[0016] An engineering ship, which carries a wave compensation crane, anti-erosion materials and a spreader. The spreader is used to be installed on the cage platform of the target offshore wind power pile foundation;

[0017] Two installation ropes, one end of one installation rope is connected to one end of the anti-erosion material, the other end of the installation rope is connected to the wave compensation crane, one end of the other installation rope is connected to the other end of the anti-erosion material, and the other end of the installation rope passes through the pulley group of the anti-erosion installation mechanism and is connected to the hook of the spreader; and

[0018] A plurality of connecting ropes, which are used to connect adjacent two anti-erosion materials when the anti-erosion materials are installed at the bottom of the target offshore wind power pile foundation.

[0019] In one embodiment, the anti-erosion installation system for an offshore wind power pile foundation further includes a counterweight block, which is used to press on the surface of the anti-erosion material when the anti-erosion material is installed at the bottom of the target offshore wind power pile foundation.

[0020] The present invention also provides a construction method for an anti-erosion installation system for an offshore wind power pile foundation. The construction method includes the following steps:

[0021] Step S1: splice multiple anti-erosion materials, connect an installation rope to each end of each anti-erosion material, and then place the anti-erosion materials connected with the installation ropes, the wave compensation crane, the sling and the connecting rope on the engineering ship for transportation;

[0022] Step S2: when transported to the target offshore wind power pile foundation, select a direction to install the sling on the cage platform of the target offshore wind power pile foundation, and sleeved the installation mechanism on the bottom of the target offshore wind power pile foundation;

[0023] Step S3: pass the end of one installation rope of the first anti-erosion material through the pulley block of the anti-erosion installation mechanism and connect it to the hook of the sling, and connect the end of the other installation rope to the wave compensation crane;

[0024] Step S4: tighten the sling so that the installation ropes at both ends of the anti-erosion material are in a tensioned state, and through the pay-out of the wave compensation machine and the reeling-in of the sling, transport the anti-erosion material to the bottom of the target offshore wind power pile foundation;

[0025] Step S5: repeat the operations of Step S2 to Step S4, transport the second anti-erosion material to the bottom of the target offshore wind power pile foundation, and connect the first anti-erosion material and the second anti-erosion material with a connecting rope;

[0026] Step S6: repeat the operation of Step S5 until all the anti-erosion materials are installed at the bottom of the target offshore wind power pile foundation.

[0027] In an embodiment, Step S1 further includes: placing counterweight blocks on the engineering ship for transportation;

[0028] Before Step S5, it further includes: pressing the counterweight blocks on the surface of the installed anti-erosion materials.

[0029] The technical solution of the present invention, the anti-erosion installation mechanism for offshore wind power pile foundations includes an annular clamp and a plurality of pulley blocks. The annular clamp forms an accommodating space for accommodating the offshore wind power pile foundation, and the pulley blocks are arranged at intervals along the circumference of the annular clamp on the outside of the annular clamp. When installing the anti-erosion materials for offshore wind power pile foundations using the anti-erosion installation mechanism of the present invention, the annular clamp is sleeved on the bottom of the offshore wind power pile foundation, and the anti-erosion materials are transported and installed at the bottom of the offshore wind power pile foundation with the help of the pulley blocks. Compared with the existing method of all manual installation, the technical solution of the present invention can effectively reduce the construction difficulty of the anti-erosion materials, shorten the construction time and improve the construction efficiency. Description of the Drawings

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0031] Figure 1 FIG. 4 is a schematic structural diagram of an anti-erosion installation mechanism for an offshore wind power pile foundation provided by the present invention;

[0032] Figure 2 FIG. Figure 1 FIG. 10 is a schematic structural diagram of the sub-hoop section in the anti-erosion installation mechanism for an offshore wind power pile foundation;

[0033] Figure 3 FIG. Figure 1 FIG. 16 is a partial enlarged view of part A in FIG.

[0034] Figure 4 FIG. Figure 1 FIG. 22 is a partial enlarged view of part B in FIG.

[0035] Figure 5 FIG. 26 is a schematic diagram of an embodiment of the construction process of the installation system provided by the present invention;

[0036] Figure 6 FIG. 30 is a top view schematic diagram of the construction process of the installation system provided by the present invention;

[0037] Figure 7 FIG. Figure 6 FIG. 36 is a partial enlarged view of part C in FIG.

[0038] Explanation of the reference numerals in the drawings:

[0039] 100 - anti-erosion installation mechanism; 10 - annular hoop; 11 - sub-hoop section; 12 - fixing part; 13 - fastener; 20 - pulley block; 21 - pulley block body; 22 - installation bracket; 200 - anti-erosion material; 300 - engineering ship; 400 - wave compensation crane; 500 - sling; 600 - installation rope; 700 - offshore wind power pile foundation; 710 - cage platform.

[0040] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. Detailed Embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0042] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0043] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] Aiming at the technical problem that all the current installation of anti-erosion materials is manual, which is difficult to construct, takes a long construction time, and has low construction efficiency due to the influence of sea waves, the present invention provides an anti-erosion installation mechanism 100 for an offshore wind power pile foundation 700, aiming to reduce the construction difficulty, shorten the construction time, and improve the construction efficiency.

[0045] Please refer to Figure 1 , in an embodiment of the present invention, the anti-erosion installation mechanism 100 for the offshore wind power pile foundation 700 includes an annular hoop 10 and a plurality of pulley groups 20. The annular hoop 10 forms an accommodating space for accommodating the offshore wind power pile foundation 700, and the pulley groups 20 are arranged at intervals along the circumferential direction of the annular hoop 10 on the outer side of the annular hoop 10.

[0046] The annular hoop 10 is of an annular structure, with an accommodation space (not labeled) formed inside. The radial dimension of the accommodation space is adapted to the outer diameter of the target offshore wind power pile foundation 700. During installation, the annular hoop 10 is sleeved and fixed at the bottom of the target offshore wind power pile foundation 700. A pulley block 20 is evenly arranged at intervals on the outer side of the annular hoop 10. When installing the anti-scouring material 200, the pulley block 20 cooperates with the conveying system of the installation system to install the anti-scouring material 200 at the bottom of the target offshore wind power pile foundation.

[0047] It should be noted that the target offshore wind power pile foundation 700 of the present invention is an offshore wind power single pile foundation, and the type of the anti-scouring material 200 to be laid is not limited. When laying the anti-scouring material 20, the anti-scouring material 20 is laid in sequence according to the four directions of east, west, south, and north of the target offshore wind power pile foundation 700, and the adjacent two laid anti-scouring materials 20 are connected together. In this way, after the anti-scouring material 20 is installed, the anti-scouring materials 20 in the four directions are connected into a whole and are looped outside the target offshore wind power pile foundation 700, and it is not easy to move due to the impact of sea surges or undercurrents, and there is no need to additionally fix the anti-scouring material 20.

[0048] When using the anti-scouring installation mechanism 100 of the present invention to install the anti-scouring material 200 for the offshore wind power pile foundation 700, the annular hoop 10 is sleeved at the bottom of the offshore wind power pile foundation 700, and the anti-scouring material 200 is conveyed and installed at the bottom of the offshore wind power pile foundation 700 by means of the pulley block 20. Compared with the existing method of all manual installation, the technical solution of the present invention can effectively reduce the construction difficulty of the anti-scouring material 200, shorten the construction time, and improve the construction efficiency.

[0049] As Figure 1 and Figure 2 shown, in some specific embodiments of the present invention, the annular hoop 10 is a circular annular hoop 10. The circular annular hoop 10 includes a plurality of arc-shaped sub-hoop segments 11, and the plurality of sub-hoop segments 11 are connected in sequence and enclose to form an accommodation space; the pulley block 20 is fixed on the outer side of the sub-hoop segment 11.

[0050] In this embodiment, the annular hoop 10 adopts a split structure, which is convenient for its transportation and installation operation. Moreover, the number of sub-hoop segments 11 can be adjusted according to the size of the offshore wind power pile foundation 700 to obtain annular hoops 10 with different inner diameters, so as to be applicable to offshore wind power pile foundations 700 of different sizes.

[0051] As Figure 2 and Figure 3As shown, in some specific embodiments of the present invention, both ends of the sub-hoop section 11 are bent outward to form fixing parts 12, and fixing holes (not labeled) are provided in the fixing parts 12; the anti-erosion installation mechanism 100 for the offshore wind power pile foundation 700 further includes a plurality of fasteners 13, and adjacent two sub-hoop sections 11 are fixedly connected through the cooperation of the fixing holes and the fasteners 13.

[0052] In this embodiment, the fixing part 12 extends radially outward along the annular hoop 10. During assembly, the fixing parts 12 of adjacent two sub-hoop sections 11 are attached to each other, and the adjacent two sub-hoop sections 11 can be connected by inserting the fasteners 13 into the fixing holes of the two fixing parts 12. Optionally, the fasteners 13 are bolts and nuts. After the bolts are inserted into the fixing holes of the two fixing parts 12, they are tightened by nuts, so that the connection of the adjacent two sub-hoop sections 11 can be completed. Optionally, two fixing holes are arranged at intervals on each fixing part 12, and two corresponding fasteners 13 are provided. The fasteners 13 are correspondingly inserted and fixed in the fixing holes of the two fixing parts 12, so as to strengthen the connection firmness of the adjacent two sub-hoop sections 11.

[0053] In some embodiments of the present invention, at least four sub-hoop sections 11 are provided, and at least four pulley groups 20 are provided. One pulley group 20 is correspondingly fixed on the outer side of one sub-hoop section 11. Such a setting can facilitate the installation operation of the anti-erosion materials 200 in four directions of the offshore wind power pile foundation 700. Of course, if there are more than four anti-erosion materials 200, more than four pulley groups 20 are correspondingly provided, and each pulley group 20 cooperates with the conveying system to install the anti-erosion materials 200 in the corresponding direction.

[0054] As Figure 1 and Figure 4 As shown, in some embodiments of the present invention, the pulley group 20 includes a pulley group body 21 and a mounting bracket 22. The pulley group body 21 is arranged on the mounting bracket 22, and the mounting bracket 22 is fixed on the outer side of the annular hoop 10.

[0055] In this embodiment, the specific structure of the mounting bracket 22 is not limited as long as it can realize the installation of the pulley group 20. The mounting bracket 22 can be optionally fixed on the outer side of the sub-hoop section 11 by screws or welding. The pulley group body 21 is composed of a fixed pulley and a movable pulley group 20, and the specific structure setting is not limited as long as it can realize labor-saving conveying, and it is within the protection scope of the present invention.

[0056] The present invention also provides an anti-erosion installation system for an offshore wind power pile foundation 700. The anti-erosion installation system for the offshore wind power pile foundation 700 includes an anti-erosion installation mechanism 100 for the offshore wind power pile foundation 700 and a conveying system. The specific structure of the anti-erosion installation mechanism 100 for the offshore wind power pile foundation 700 refers to the above-mentioned embodiments. Since the anti-erosion installation system for the offshore wind power pile foundation 700 adopts all the technical solutions of the above-mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated herein one by one. Among them, the anti-erosion installation system for the offshore wind power pile foundation 700 is used to install the anti-erosion material 200 for the offshore wind power pile foundation 700. The anti-erosion installation mechanism 100 is used to be sleeved at the bottom of the offshore wind power pile foundation 700. The conveying system cooperates with the anti-erosion installation mechanism 100 to install the anti-erosion material 200 at the bottom of the offshore wind power pile foundation 700.

[0057] When using the anti-erosion installation system for the offshore wind power pile foundation 700 of the present invention to install the anti-erosion material 200 for the offshore wind power pile foundation 700, the annular clamp 10 is sleeved at the bottom of the offshore wind power pile foundation 700, and with the help of the pulley block 20 of the conveying system and the anti-erosion installation mechanism 100, the anti-erosion material 200 is conveyed and installed at the bottom of the offshore wind power pile foundation 700. In this way, the construction difficulty of the anti-erosion material 200 can be effectively reduced, the construction time can be shortened, and the construction efficiency can be improved.

[0058] As Figures 5 to 7 shown, in some embodiments of the present invention, the conveying system includes an engineering ship 300, two installation ropes 600 and a plurality of connecting ropes. The engineering ship 300 is equipped with a wave compensation crane 400, an anti-erosion material 200 and a lifting tool 500, which are used to be installed on the cage platform 710 of the target offshore wind power pile foundation 700. One end of one installation rope 600 is connected to one end of the anti-erosion material 200, and the other end of the installation rope 600 is connected to the wave compensation crane 400. One end of the other installation rope 600 is connected to the other end of the anti-erosion material 200, and the other end of the installation rope 600 passes through the pulley block 20 of the anti-erosion installation mechanism 100 and is connected to the hook of the lifting tool 500. The connecting ropes are used to connect two adjacent anti-erosion materials 200 when the anti-erosion material 200 is installed at the bottom of the target offshore wind power pile foundation 700.

[0059] In this embodiment, the sling 500 is a special sling 500 for preventing erosion of offshore wind turbines, and its specific structure is not limited. The installation rope 600 can be selected as a steel wire rope. The erosion prevention materials 200 include at least four, and the four erosion prevention materials 200 are respectively laid on the outer four directions (i.e., the four directions of east, west, south, and north) of the target offshore wind turbine pile foundation 700. After the erosion prevention is in place, adjacent two erosion prevention materials 200 are connected together by a connecting rope. Of course, more than four erosion prevention materials 200 can also be provided. When the size of the erosion prevention material 200 at a certain direction is large, at least two split erosion prevention materials 200 can be used. One installation rope 600 is connected to each of the opposite ends of each erosion prevention material 200. One of the free ends of the two installation ropes 600 is connected to the wave compensation crane 400, and the other free end passes through the pulley block 20 and is connected to the hook of the sling 500. In this way, the transportation and installation of the erosion prevention materials 200 can be realized through the cooperation of the engineering ship 300, the installation rope 600, the wave compensation crane 400, the erosion prevention installation mechanism 100, and the sling 500. After the erosion prevention materials 200 are installed at the bottom of the target offshore wind turbine pile foundation 700, adjacent two erosion prevention materials 200 are connected by a connecting rope, and the installation and splicing of the erosion prevention materials 200 can be completed. It should be noted that the target offshore wind turbine pile foundation 700 is the offshore wind turbine pile foundation 700 that needs to be laid with erosion prevention materials 200.

[0060] When laying the erosion prevention materials 20 in the present invention, the erosion prevention materials 20 are laid in sequence according to the four directions of east, west, south, and north of the target offshore wind turbine pile foundation 700, and adjacent two laid erosion prevention materials 20 are connected together. In this way, after the installation of the erosion prevention materials 20 is completed, the erosion prevention materials 20 in the four directions are connected into a whole and are looped outside the target offshore wind turbine pile foundation 700, and are not easily moved by the impact of seawater surges or undercurrents, and there is no need to additionally fix the erosion prevention materials 20.

[0061] In some embodiments of the present invention, the erosion prevention installation system for the offshore wind turbine pile foundation 700 further includes a counterweight block, which is used to press on the surface of the erosion prevention materials 200 when the erosion prevention materials 200 are installed at the bottom of the target offshore wind turbine pile foundation 700, so as to effectively prevent the erosion prevention materials 200 from being moved by the impact of seawater surges or undercurrents before being spliced and installed. The counterweight block can be selected as stone material.

[0062] As Figures 4 to 5 shown, the present invention also provides a construction method for the erosion prevention installation system for the offshore wind turbine pile foundation 700, and the construction method includes the following steps:

[0063] Step S1: splice multiple anti-erosion materials 200, and connect an installation rope 600 to each end of each anti-erosion material 200. Then, place the anti-erosion materials 200 connected with the installation ropes 600, the wave compensation crane 400, the sling 500 and the connecting rope on the engineering ship 300 for transportation.

[0064] Step S2: when transported to the target offshore wind power pile foundation 700, select a direction to install the sling 500 on the cage platform 710 of the target offshore wind power pile foundation 700, and sleuth the installation mechanism on the bottom of the target offshore wind power pile foundation 700.

[0065] Step S3: pass the end of one installation rope 600 of the anti-erosion material 200 through the pulley block 20 of the anti-erosion installation mechanism 100 and connect it to the hook of the sling 500, and connect the end of the other installation rope 600 to the wave compensation crane 400.

[0066] Step S4: tighten the sling 500 so that the installation ropes 600 at both ends of the anti-erosion material 200 are in a tensioned state, and through the unwinding of the wave compensator and the winding of the sling 500, transport the anti-erosion material 200 to the bottom of the target offshore wind power pile foundation 700.

[0067] Step S5: repeat the operations of Step S2 to Step S4, transport the second anti-erosion material 200 to the bottom of the target offshore wind power pile foundation 700, and connect the first anti-erosion material 200 and the second anti-erosion material 200 with a connecting rope;

[0068] Step S6: repeat the operation of Step S5 until all the anti-erosion materials 200 are installed at the bottom of the target offshore wind power pile foundation 700.

[0069] Step S1 is the preparation work on shore. First, splice at least four anti-erosion materials 200. Then, connect an installation rope 600 to each end of each anti-erosion material 200. After that, transport all the materials and tools to the target offshore wind power pile foundation 700 by an engineering ship 300. Steps S2 and S3 are the preparatory work before installing the anti-erosion materials 200. Specifically, install a hoisting tool 500 on the cage platform 710 of the target offshore wind power pile foundation 700 in a selected orientation, and sleeve the installation mechanism on the bottom of the target offshore wind power pile foundation 700. Then, pass the end of an installation rope 600 of the anti-erosion material 200 through the pulley block 20 of the anti-erosion installation mechanism 100 and connect it to the hook of the hoisting tool 500, and connect the end of the other installation rope 600 to the wave compensation crane 400. Steps S4, S5, and S6 are the installation process of the anti-erosion materials 200. Specifically: First, tighten the hoisting tool 500 so that the installation ropes 600 at both ends of the anti-erosion material 200 are in a tensioned state. Then, the hoisting tool 500 and the wave compensation machine work simultaneously. The wave compensation machine pays out the rope, and the hoisting tool 500 winds up the rope until the anti-erosion material 200 is transported to the bottom of the target offshore wind power pile foundation 700. After that, a diver dives to the bottom of the target offshore wind power pile foundation 700 to observe whether the anti-erosion material 200 reaches the preset position. If there is a deviation, the wave compensation crane 400 can be commanded to move for fine-tuning to make the anti-erosion material 200 reach the preset position. In this way, the installation of the first anti-erosion material 200 can be completed. Then, change the orientation to install the hoisting tool 500, repeat the above operation, transport the second anti-erosion material 200 to the bottom of the target offshore wind power pile foundation 700, and connect the first anti-erosion material 200 and the second anti-erosion material 200 with a connecting rope. After that, install the remaining anti-erosion materials 200. The operation steps can refer to the installation operation of the first anti-erosion material 200 until all the anti-erosion materials 200 are installed at the bottom of the target offshore wind power pile foundation 700. Finally, remove the anti-erosion installation mechanism 100, the hoisting tool 500, and the installation ropes 600, and evacuate the engineering ship 300. In this way, the installation of the anti-erosion materials 20 is completed. The anti-erosion materials 20 at the four orientations are connected into a whole and are looped around the outside of the target offshore wind power pile foundation 700, and are not easily moved by the impact of seawater surges or undercurrents, and there is no need to additionally fix the anti-erosion materials 20.

[0070] For the construction method of the anti-erosion installation system for the offshore wind power pile foundation 700 provided by the present invention, the wave compensation machine pays out the rope and the hoisting tool 500 winds up the rope working simultaneously, which can effectively eliminate the influence of some sea waves, reduce the construction difficulty of the anti-erosion materials 200, greatly shorten the construction time of the anti-erosion materials 200, and improve its construction efficiency. Moreover, the anti-erosion materials 200 installed by this construction method have good stability and can achieve long-term effective protection.

[0071] Furthermore, in some embodiments of the present invention, step S1 further includes: placing the counterweight on the engineering ship 300 for transportation; before step S5, it further includes: pressing the counterweight on the surface of the installed anti-erosion material 200. Such an operation can effectively prevent the anti-erosion material 200 from moving due to the impact of sea surges or undercurrents before splicing and installation, so as to facilitate the splicing and fixing of the subsequent anti-erosion material.

[0072] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. Construction method of an anti-scouring installation system for an offshore wind power pile foundation, characterized in that, The anti-erosion installation system for an offshore wind power pile foundation includes an anti-erosion installation mechanism for an offshore wind power pile foundation and a conveying system. The conveying system cooperates with the anti-erosion installation mechanism for an offshore wind power pile foundation to install anti-erosion materials at the bottom of the offshore wind power pile foundation; The anti-erosion installation mechanism for an offshore wind power pile foundation is sleeved at the bottom of the offshore wind power pile foundation. The anti-erosion installation mechanism for an offshore wind power pile foundation includes: A circular hoop, the circular hoop forms a receiving space for receiving the offshore wind power pile foundation; and A plurality of pulley groups, and the plurality of pulley groups are arranged at intervals along the circumferential direction of the circular hoop on the outer side of the circular hoop; The conveying system includes: An engineering ship, the engineering ship is equipped with a wave compensation crane, anti-erosion materials and a lifting tool, and the lifting tool is used to be installed on the cage platform of the target offshore wind power pile foundation; Two installation ropes, one end of one of the installation ropes is connected to one end of the anti-erosion material, the other end of the installation rope is connected to the wave compensation crane, one end of the other installation rope is connected to the other end of the anti-erosion material, and the other end of the installation rope passes through the pulley group of the anti-erosion installation mechanism and is connected to the hook of the lifting tool; and A plurality of connecting ropes, which are used to connect adjacent two anti-erosion materials when the anti-erosion materials are installed at the bottom of the target offshore wind power pile foundation; The construction method includes the following steps: Step S1, splice a plurality of anti-erosion materials, and connect an installation rope to each end of each anti-erosion material. After that, place the anti-erosion materials connected with the installation ropes, the wave compensation crane, the lifting tool and the connecting ropes on the engineering ship for transportation; Step S2, when transporting to the target offshore wind power pile foundation, select a direction to install the lifting tool on the cage platform of the target offshore wind power pile foundation, and sleeve the installation mechanism at the bottom of the target offshore wind power pile foundation; Step S3, pass the end of one installation rope of the first anti-erosion material through the pulley group of the anti-erosion installation mechanism and connect it to the hook of the lifting tool, and connect the end of the other installation rope to the wave compensation crane; Step S4, tighten the lifting tool so that the installation ropes at both ends of the anti-erosion material are in a tensioned state, and through the unwinding of the wave compensation crane and the winding of the lifting tool, convey the anti-erosion material to the bottom of the target offshore wind power pile foundation, where the lifting tool and the wave compensation crane work simultaneously; Step S5, repeat the operations of Step S2 to Step S4, convey the second anti-erosion material to the bottom of the target offshore wind power pile foundation, and connect the first anti-erosion material and the second anti-erosion material with a connecting rope; Step S6, perform the operations of Step S5 until all the anti-erosion materials are installed at the bottom of the target offshore wind power pile foundation. Finally, remove the installation mechanism, the lifting tool, the installation ropes, and evacuate the engineering ship.

2. The construction method of the anti-scouring installation system for the offshore wind power pile foundation according to claim 1, characterized in that, The circular hoop is a circular hoop, and the circular hoop includes a plurality of arc-shaped sub-hoop segments, and the plurality of sub-hoop segments are sequentially connected and enclose to form the receiving space; The pulley group is fixed on the outer side of the sub-hoop segment.

3. The construction method of the anti-scouring installation system for the offshore wind power pile foundation according to claim 2, characterized in that, Both ends of the sub-hoop segment are bent outward to form fixing parts, and fixing holes are provided in the fixing parts; The anti-scouring installation mechanism for the offshore wind power pile foundation further includes a plurality of fasteners, and two adjacent sub-hoop segments are fixedly connected through the cooperation of the fixing holes and the fasteners.

4. The construction method of the anti-scouring installation system for offshore wind power pile foundations according to claim 2, characterized in that, At least four sub-hoop segments are provided, and at least four pulley groups are provided. One pulley group is fixedly arranged on the outer side of one sub-hoop segment.

5. The construction method of the anti-scouring installation system for offshore wind power pile foundations according to any one of claims 1 to 4, characterized in that, The pulley group includes a pulley group body and a mounting bracket. The pulley group body is arranged on the mounting bracket, and the mounting bracket is fixed on the outer side of the annular hoop.

6. The construction method of the anti-scouring installation system for offshore wind power pile foundations as described in claim 1, characterized in that, The anti-scouring installation system for the offshore wind power pile foundation further includes a counterweight, which is used to press on the surface of the anti-scouring material when the anti-scouring material is installed at the bottom of the target offshore wind power pile foundation.

7. The construction method of the anti-scouring installation system for offshore wind power pile foundations according to claim 1, characterized in that, In step S1, it further includes: placing the counterweight on the engineering ship for transportation; Before step S5, it further includes: pressing the counterweight on the surface of the installed anti-scouring material.

Images