Offshore wind foundation and breakwater collaborative structure based on segmented caisson wrapping

Abstract

The utility model discloses offshore wind power foundation and breakwater cooperative structure and system based on sectional type caisson package, its technical scheme is including offshore wind power single pile foundation and breakwater structure, the breakwater structure includes the caisson structure of symmetrical arrangement, and the caisson structure of each side includes conventional section caisson and link section caisson, the conventional section caisson and link section caisson bottom fixed to the foundation in, and the link section caisson prefabricated as link arc section with offshore wind power single pile foundation adjacent one side, and offshore wind power single pile foundation is wrapped through the link arc section of both sides. The long-term bearing capacity stability of single pile foundation has been improved.

Description

Technical Field

[0001] This utility model relates to the fields of wind power engineering and port engineering, and in particular to a collaborative structure and system for offshore wind power foundations and breakwaters based on segmented caisson enclosures. Background Technology

[0002] The statements in this section merely refer to the background technology related to this utility model and do not necessarily constitute prior art.

[0003] The integration of breakwaters and offshore wind power has become an innovative direction for the intensive utilization of marine resources. Traditional breakwaters, as coastal protection projects, mainly function to resist wave erosion, siltation, and maintain port and nearshore safety. Offshore wind power, as an important carrier of clean energy, requires marine space and stable infrastructure. The combination of the two, through "space reuse" and "functional integration", integrates breakwaters and offshore wind power, which not only solves the need for deep-water areas and high-cost foundations for offshore wind power construction, but also enhances the economic added value of breakwaters.

[0004] Existing breakwater and wind turbine foundation integration structures often employ a semi-circular caisson structure, using interlocking joints to fix the monopile foundation and relying on positioning piles to enhance stability. However, this structure requires the prefabrication of complex interlocking joints, and the construction sequence necessitates installing the caisson before driving the piles. This can easily lead to the accumulation of installation errors between the caisson and the pile foundation. Furthermore, the curvature design of the semi-circular caisson provides limited coverage for the monopile, making it difficult to adequately distribute environmental loads. In addition, the fixing of the interlocking joints to the pile foundation requires additional grouting materials, further increasing construction complexity. Utility Model Content

[0005] To address the shortcomings of existing technologies, the first aspect of this utility model provides a collaborative structure for offshore wind power foundations and breakwaters based on segmented caisson wrapping. This structure uses two specific connecting caisson segments to non-contactly wrap a monopile foundation, requiring stone backfilling or the application of solidified soil, thereby reducing ecological damage, lowering the amount of engineering work, and simultaneously improving the long-term bearing capacity stability of the monopile foundation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The offshore wind power foundation and breakwater collaborative structure based on segmented caisson wrapping includes an offshore wind power monopile foundation and a breakwater structure. The breakwater structure includes symmetrically arranged caisson structures. Each side of the caisson structure includes a conventional section caisson and a connecting section caisson. The bottom of the conventional section caisson and the connecting section caisson is fixed to the foundation. The connecting section caisson on the side adjacent to the offshore wind power monopile foundation is prefabricated as a connecting arc segment. The offshore wind power monopile foundation is wrapped by the connecting arc segments on both sides.

[0008] As one implementation method, the conventional section caisson adopts a cubic structure.

[0009] In one implementation, pressure relief holes are provided at the bottom of the conventional section caisson and the connecting section caisson, and the pressure relief holes are evenly distributed along the bottom of the caisson.

[0010] In one embodiment, the diameter of the pressure relief hole is 50-100mm.

[0011] In one implementation method, the radius of the connecting arc segment is larger than the radius of the offshore wind turbine monopile foundation.

[0012] As one implementation method, the radius of the connecting arc segment is 1.2 to 1.5 times the radius of the offshore wind turbine monopile foundation.

[0013] As one implementation method, the connecting arc segments on both sides non-contactly wrap the offshore wind turbine monopile foundation.

[0014] As one implementation method, the bottom outer edge of the conventional section caisson and the connecting section caisson is provided with a cutting edge.

[0015] In one implementation, the cutting edge adopts a wedge-shaped structure.

[0016] To address the shortcomings of existing technologies, the second aspect of this utility model provides a collaborative system for offshore wind power foundations and breakwaters based on segmented caisson wrapping. This system uses two specific connecting caisson segments to non-contactly wrap a monopile foundation, requiring stone backfilling or the application of solidified soil, thereby reducing ecological damage, lowering the amount of engineering work, and simultaneously improving the long-term bearing capacity stability of the monopile foundation.

[0017] The offshore wind power foundation and breakwater collaborative system based on segmented caisson enclosure includes multiple offshore wind power foundation and breakwater collaborative structures based on segmented caisson enclosure as described in the first aspect.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention proposes a non-contact enclosing method for a monopile foundation using caissons connected by two specific joint sections. This significantly improves space utilization. Simultaneously, the joint section caissons, through non-contact curved surface guidance, transfer environmental loads such as waves, currents, and ice to the breakwater structure. This significantly reduces the environmental loads borne by the monopile foundation, including wave, current, and ice loads, and decreases the depth of foundation scour. Compared to existing technologies that rely on riprap foundations or solidified soil, this invention eliminates the need for stone backfilling or the application of solidified soil, reducing ecological damage, lowering the workload, and simultaneously improving the long-term bearing capacity stability of the monopile foundation. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0021] Figure 1 A schematic plan view of the collaborative structure of offshore wind power foundation and breakwater based on segmented caisson wrapping provided for an embodiment of this utility model;

[0022] Figure 2 The schematic diagram provided for this embodiment of the utility model is a plan view of a conventional section caisson;

[0023] Figure 3 A schematic diagram of the connecting section caisson provided in an embodiment of this utility model;

[0024] Figure 4 Side view of the connecting section caisson provided for an embodiment of this utility model Figure 1 ;

[0025] Figure 5 Side view of the connecting section caisson provided for an embodiment of this utility model Figure 2 ;

[0026] Among them, 1. Offshore wind turbine monopile foundation; 2. Breakwater structure; 201. Conventional section caisson; 202. Connecting section caisson; 3. Connecting arc section; 4. Pressure relief hole; 5. Cutting edge. Detailed Implementation

[0027] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] It should be noted that this utility model is a structural solution. As for the individual devices involved, the specific structures for realizing their respective functions already exist in the prior art, as do the protocols, software, or programs involved in their operation. Those skilled in the art are fully aware of this. This utility model does not make any improvements to the individual devices, and therefore does not involve software content. Instead, it relies on the organic integration and consolidation of the components into a whole, that is, it provides a structural solution.

[0029] Figure 1 This is a schematic diagram of the collaborative structure of an offshore wind turbine foundation and breakwater based on a segmented caisson enclosure, as shown below. Figure 1As shown, the offshore wind power foundation and breakwater collaborative structure based on segmented caisson wrapping includes an offshore wind power monopile foundation 1 and a breakwater structure 2. The breakwater structure 2 includes symmetrically arranged caisson structures. Each side of the caisson structure includes a conventional section caisson 201 and a connecting section caisson 202. The bottom of the conventional section caisson 201 and the connecting section caisson 202 is fixed to the foundation. The connecting section caisson 202 on the side adjacent to the offshore wind power monopile foundation 1 is prefabricated as a connecting arc segment 3. The offshore wind power monopile foundation 1 is wrapped by the connecting arc segments 3 on both sides.

[0030] In this embodiment, the conventional section caisson 201 adopts a cubic structure;

[0031] like Figure 2 and Figure 3 As shown, the bottom of the conventional section caisson is provided with pressure relief holes 4, which are evenly distributed along the bottom of the caisson.

[0032] Preferably, the diameter of the pressure relief hole 4 is 50-100mm.

[0033] like Figure 3 As shown, the radius of the connecting arc 3 is larger than the radius of the offshore wind turbine monopile foundation 1, and the connecting arcs on both sides non-contactly wrap around the offshore wind turbine monopile foundation 1.

[0034] Preferably, the radius of the connecting arc segment 3 is 1.2-1.5 times the radius of the offshore wind power monopile foundation 1.

[0035] The purpose is to better wrap the offshore wind turbine monopile foundation 1 in a non-contact manner, forming a gap buffer layer to avoid damage to the anti-corrosion coating caused by close contact during construction, extend the service life of the wind turbine foundation, reduce maintenance costs, and at the same time, significantly reduce the impact of waves and currents on the longitudinally overlapping part of the offshore wind turbine monopile foundation and the connecting section caisson 202.

[0036] like Figure 3 As shown, the bottom of the connecting section caisson is provided with pressure relief holes 4, which are evenly distributed along the bottom of the caisson.

[0037] Preferably, the diameter of the pressure relief hole 4 is 50-100mm.

[0038] like Figure 4 As shown, the conventional section caisson 201 and the connecting section caisson 202 are provided with cutting edges 5 at the bottom outer edges to facilitate installation into the foundation;

[0039] Specifically, a cutting edge 5 can be set along the outer edge of the long side of the bottom of the caisson bottom plate. The cutting edge adopts a wedge-shaped structure. With the wedge-shaped structure of the cutting edge, the mud and water can be discharged when the caisson sinks, the resistance during installation can be reduced so that it can be installed into the mud, the degree of interference to the soil during installation can be reduced, and the bearing capacity can be improved.

[0040] The construction principle of this utility model is as follows:

[0041] During construction, the construction sequence is as follows: "single pile → connecting section caisson → conventional section caisson".

[0042] The construction of the offshore wind turbine monopile foundation 1 can be carried out first, following the conventional offshore wind turbine monopile construction method. Then, the construction of the connecting section caisson 202 can be carried out. The connecting section caisson 202 adopts a factory prefabricated module and is quickly aligned and installed on site using a guiding device. Each offshore wind turbine monopile foundation 1 is wrapped by two connecting section caissons 202 in a non-contact manner. The offshore wind turbine monopile foundation 1 and the connecting arc section 203 do not require clamp fixation or grouting materials (such as asphalt), simplifying the construction process. Finally, the construction of the conventional section caisson 201 can be carried out. The conventional section caisson 201 adopts a factory prefabricated module to form a complete breakwater system.

[0043] The step-by-step construction method of "single pile → connecting section caisson → conventional section caisson" can significantly improve construction efficiency and shorten the construction period; the non-contact wrapping design avoids mechanical friction on the surface of the single pile during caisson installation, and the anti-corrosion coating has a 100% integrity rate.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A collaborative structure of offshore wind power foundation and breakwater based on segmented caisson wrapping, comprising an offshore wind power single pile foundation and a breakwater structure, characterized in that, The breakwater structure comprises symmetrically arranged caisson structures, each side of the caisson structure comprises a regular section caisson and a connecting section caisson, the bottom of the regular section caisson and the connecting section caisson is fixed into the foundation, the connecting section caisson adjacent to one side of the offshore wind power single pile foundation is prefabricated as a connecting arc section, and the offshore wind power single pile foundation is wrapped by the connecting arc sections on both sides.

2. A foundation and breakwater integrated offshore windmill structure based on a segmented caisson wrapping according to claim 1, characterized in that, The regular section caisson adopts a cubic structure.

3. The offshore wind foundation and breakwater integrated structure based on the segmented caisson package according to claim 1, characterized in that, The bottom of the regular section caisson and the connecting section caisson is provided with pressure relief holes, and the pressure relief holes are uniformly distributed along the bottom of the caisson.

4. A foundation and breakwater integrated offshore windmill structure based on a segmented caisson wrap according to claim 3, characterized in that, The diameter of the pressure relief hole is 50-100mm.

5. The offshore wind foundation and breakwater integrated structure based on the segmented caisson package according to claim 1, characterized in that, The radius of the connecting arc section is greater than the radius of the offshore wind power single pile foundation.

6. A foundation and breakwater cooperative structure based on a segmented caisson package for offshore wind power according to claim 5, characterized in that, The radius of the connecting arc section is 1.2-1.5 times the radius of the offshore wind power single pile foundation.

7. The offshore wind foundation and breakwater integrated structure based on the segmented caisson package according to claim 1, characterized in that, The connecting arc sections on both sides non-contact wrap the offshore wind power single pile foundation.

8. The offshore wind foundation and breakwater integrated structure based on the segmented caisson package according to claim 1, characterized in that, The outer edge of the bottom of the regular section caisson and the connecting section caisson is provided with a blade foot.

9. A foundation and breakwater collaborative structure based on a segmented caisson wrapped offshore wind foundation according to claim 8, characterized in that, The blade foot adopts a wedge-shaped structure.

10. Offshore wind foundation and breakwater collaborative system based on segmented caisson wrapping, characterized in that, A structure of a breakwater and an offshore wind power foundation based on a segmented caisson is provided.

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