CN210341970U - Installation foundation assembly for offshore wind turbine generator system - Google Patents
Installation foundation assembly for offshore wind turbine generator system Download PDFInfo
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- CN210341970U CN210341970U CN201920557253.7U CN201920557253U CN210341970U CN 210341970 U CN210341970 U CN 210341970U CN 201920557253 U CN201920557253 U CN 201920557253U CN 210341970 U CN210341970 U CN 210341970U
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Abstract
The application discloses an offshore wind turbine installation foundation assembly, which comprises a main pile, at least three auxiliary piles and an auxiliary platform, wherein the auxiliary piles are uniformly arranged around the main pile by taking the main pile as a center, the upper ends of the auxiliary piles extend out of a mud surface, and the lower ends of the auxiliary piles extend to the position below the mud surface; the auxiliary platform is arranged at the mud surface and comprises a central connecting truss, a plurality of sleeves are arranged on the central connecting truss, the sleeves are fixedly connected with the main pile or the auxiliary pile respectively, and a plurality of connecting rods are arranged between the sleeves. Through above-mentioned technical scheme, can improve the bulk rigidity of offshore wind turbine generator system installation basic unit, in addition, through setting up outer truss and install the stopping additional in the inner zone of outer truss, can effectually reduce rivers to the scouring action of near the main pile mud face.
Description
Technical Field
The utility model relates to a foundation construction technique of marine equipment fixing especially relates to an offshore wind turbine installation foundation assembly.
Background
The wind power technology is mature, the cost is continuously reduced, the wind power technology becomes the core content of energy transformation promotion and an important way for coping with climate change in many countries, and the wind power technology is also an important means for deeply promoting energy production and consumption revolution and promoting air pollution prevention and treatment in China. Offshore wind power has a wide market prospect in China due to the advantages of rich wind energy resources, small noise limitation, no occupation of land precious land resources and the like.
The foundation forms of offshore wind turbine generators are various, and the foundation forms of the wind turbine generators used at home and abroad at the present stage mainly comprise gravity type foundations, single pile foundations, tripod foundations, jacket foundations, pile foundation-concrete bearing platform foundations, pile foundation-steel bearing platform foundations, suction bucket foundations, suspension foundations and the like, wherein the single pile foundations occupy the dominant position. The single-pile foundation is the simplest foundation form of a stress mode in all offshore wind turbine foundation structures, and is mainly suitable for sea areas with water depth less than 30 m. Compared with pile foundations in other foundation forms, the single-pile foundation has larger pile diameter and tends to develop larger diameter and longer pile length, the overall rigidity of the foundation is smaller, and the requirement on pile driving equipment is high. In addition, the mud surface at the large-diameter single-pile foundation is seriously scoured, and a larger scour pit is often formed, so that the single-pile cantilever section is lengthened, and the soil resistance is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned not enough that present offshore wind turbine installation basic unit exists, the application provides an offshore wind turbine installation basic unit, can improve the bulk rigidity of offshore wind turbine installation basic unit.
The application further aims to solve the technical problem of reducing the scouring effect of water flow on the mud surface near the main pile.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
the utility model provides an offshore wind turbine installation foundation assembly, includes the king pile, still includes following structure:
the auxiliary piles are uniformly arranged around the main pile by taking the main pile as a center, the upper ends of the auxiliary piles extend out of the mud surface, and the lower ends of the auxiliary piles extend below the mud surface;
the auxiliary platform is arranged at the mud surface and comprises a central connecting truss, a plurality of sleeves are arranged on the central connecting truss and are respectively fixedly connected with the main pile or the auxiliary pile, and a plurality of connecting rods are arranged between the sleeves.
The sleeve cup joints the king pile perhaps on the auxiliary pile, with the king pile perhaps auxiliary pile fixed connection, central connection truss will the king pile with the auxiliary pile is connected, has improved the bulk rigidity of offshore wind turbine generator system installation foundation subassembly, can assist the king pile atress reduces the length of king pile, simultaneously, the auxiliary pile with auxiliary platform's combination can double as during the construction the location platform of king pile reduces horizontal displacement, and the auxiliary is sunk the king pile, reduces the requirement to the equipment of beating a pile.
Preferably, the auxiliary platform further comprises a filling material, wherein the filling material is filled in the area inside the central connection truss or the area inside the central connection truss and adjacent to the central connection truss.
The filler is an inert granular or massive material which does not react with seawater, and preferably has a uniform gradation. Filling filler in an area inside the central connecting truss or in an area inside the central connecting truss and adjacent to the central connecting truss, so that water can pass through, the contact area of the water and the mud surface near the main pile can be reduced, the flow velocity of the water is reduced, and the scouring degree of the mud surface near the main pile is reduced. And when the mud surface sinks under the scouring action, the filling material can actively fill the scouring pits under the action of gravity, so that the dynamic scouring prevention effect is realized, the water flow scouring prevention effect is better, and when the filling material is excessively consumed, the continuous scouring prevention effect can be kept by periodically supplementing the filling material.
Preferably, the filling material is stone or block concrete, and the material of the filling material can be comprehensively considered according to various reasons such as the water flow condition of the sea area, cost control or availability and the like.
Preferably, when the filling material is filled in the area inside and adjacent to the central connection truss, the auxiliary platform further comprises an outer truss and a protective net, the outer truss is arranged outside the central connection truss or externally connected to the central connection truss, the main pile is used as the center, a plurality of connecting rods are arranged between the outer truss and the central connection truss, and the protective net is arranged on the side edge of the outer truss. The combined use of the outer truss and the protective net can limit the filler, so that the filler does not leak out of the range defined by the protective net and the outer truss, and the filler can be effectively prevented from being washed away by water flow. In addition, the supporting area of the central connecting truss is enlarged by the outer truss, and the overall rigidity of the offshore wind turbine installation base assembly is further improved.
Preferably, the outer truss is set to be circular or polygonal, the center of the outer truss is set at the main pile, and the included angle of the polygon is an obtuse angle. The obtuse angle or streamline lines can better guide water flow, reduce the possibility of poor flow state generation, and further enhance the anti-scouring effect.
Preferably, the auxiliary platform further comprises an anti-sinking plate, and the anti-sinking plate is arranged on the outer side of the outer truss and fixedly connected with the outer truss. The anti-sinking plate is used for preventing the auxiliary platform from sinking. In the installation process of installing the foundation assembly on the offshore wind turbine, the auxiliary platform is required to be sunk into the mud surface of the seabed, and before the auxiliary platform is fixedly connected with the main pile or the auxiliary pile, the anti-sinking plate can effectively prevent the auxiliary platform from sinking, so that the smooth installation is ensured.
Preferably, the anti-sinking plate is arranged at the lower end of the outer edge of the outer truss, so that the effect of preventing the auxiliary platform from sinking is better.
The application has the advantages that: the application discloses an offshore wind turbine installation foundation assembly, which comprises a main pile, at least three auxiliary piles and an auxiliary platform, wherein the auxiliary piles are uniformly arranged around the main pile by taking the main pile as a center, the upper ends of the auxiliary piles extend out of a mud surface, and the lower ends of the auxiliary piles extend to the position below the mud surface; the auxiliary platform is arranged at the mud surface and comprises a central connecting truss, a plurality of sleeves are arranged on the central connecting truss, the sleeves are fixedly connected with the main pile or the auxiliary pile respectively, and a plurality of connecting rods are arranged between the sleeves. Through above-mentioned technical scheme, can improve the bulk rigidity of offshore wind turbine generator system installation basic unit, in addition, through setting up outer truss and install the stopping additional in the inner zone of outer truss, can effectually reduce rivers to the scouring action of near the main pile mud face.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an offshore wind turbine installation foundation assembly according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an offshore wind turbine installation base assembly according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1 and 2, an offshore wind turbine installation foundation assembly includes a main pile 1, and further includes the following structure:
the auxiliary piles 2 are uniformly arranged around the main pile 1 by taking the main pile 1 as a center, the upper ends of the auxiliary piles 2 extend out of a mud surface, and the lower ends of the auxiliary piles 2 extend below a mud surface 4; fig. 1 and 2 show an embodiment in which the auxiliary piles 2 are four, four auxiliary piles 2 are vertical piles, the main pile 1 is taken as a geometric center, and the connecting lines of the four auxiliary piles 2 form a square; in other embodiments of the present application, the number of the auxiliary piles 2 may be adjusted according to parameters such as specific conditions of the sea area, the diameter of the main pile 1, the pile length, and the like, and may be three, five, six, or even more; the auxiliary piles 2 can be arranged into straight piles or inclined piles, and the connecting line of each auxiliary pile 2 is a regular polygon or an approximate regular polygon.
The auxiliary platform 3 is arranged on the mud surface 4 and comprises a central connecting truss 31, a plurality of sleeves 31a are arranged on the central connecting truss 31, the sleeves 31a are fixedly connected with the main pile 1 or the auxiliary pile 2 respectively, and a plurality of connecting rods 31b are arranged between the sleeves 31a, wherein the number of the connecting rods 31b can be adjusted according to the rigidity requirement of the main pile 1.
In the embodiment of the application, the main pile 1 can be a steel pipe pile or a cement pile, the auxiliary pile 2 can be a steel pipe pile or a cement pile, the central connecting truss can be made of steel, and prefabrication can be completed in a factory, so that the construction period is saved; the sleeve 31a and the main pile 1 and the sleeve 31a and the auxiliary pile 2 can be connected in a grouting manner, so that the main pile 1, the auxiliary pile 2 and the auxiliary platform 3 are connected into a whole structure.
In some embodiments, the auxiliary platform 3 further comprises a filling material 33, and in the embodiment shown in fig. 1 and 2, the filling material 33 is filled in the inner area of the outer truss 32. In another embodiment of the present application, the outer truss 32 may not be provided, and the filling material 33 may be directly filled in the inner region of the central connection truss 31. The filler 33 is inert granular or blocky objects which do not react with seawater, the filler 33 with uniform gradation is preferably used, stone or blocky concrete and the like can be selected, when the mud surface 4 is washed, the filler 33 in the inner area of the outer truss 32 sinks along with the filler, the washing pit is actively filled under the action of gravity, and according to the washing degree, the filler 33 can be supplemented for 3 to 5 years, so that the effect of continuous scouring prevention is achieved. Not only can permeate water, but also can prevent scouring.
In some embodiments of the present application, the auxiliary platform 3 further includes an outer truss 32 and a protective net 34, and the size of the outer truss can be set according to the specific situation of the sea area. The outer girder 32 may be disposed outside the central coupling girder 31 centering on the main pile 1, a plurality of the coupling rods 31b may be disposed between the outer girder 32 and the central coupling girder 31, and the outer girder 32 may be externally coupled to the outside of the central coupling girder 31. The shape of the outer truss 32 can be set arbitrarily, preferably to be circular or polygonal, a regular polygon is preferred in the polygon, wherein, the included angle of the polygon or the regular polygon is preferably an obtuse angle, the protective net 34 is arranged at the side edge of the outer truss 31, and the combination use of the outer truss 31 and the protective net 34 can limit the filling material 33, prevent the filling material 33 from being washed away by water flow, and can better guide the water flow.
In some embodiments of the present application, the auxiliary platform 3 further includes an anti-sinking plate 35, where the anti-sinking plate 35 is disposed outside the outer truss 32, preferably at a lower end of the outer edge of the outer truss 32 where the anti-sinking plate 35 is disposed, and is fixedly connected to the outer truss 32. The anti-sinking plate 35 is used to prevent the auxiliary platform 3 from sinking. In the installation process of the offshore wind turbine generator installation foundation assembly, the auxiliary platform 3 is required to be sunk into the mud surface 4 of the seabed firstly, before the auxiliary platform 3 is fixedly connected with the main pile 1 or the auxiliary pile 2, the anti-sinking plate 35 can effectively prevent the auxiliary platform 3 from sinking, so that the installation is ensured to be carried out smoothly, and a certain anti-scouring effect can be achieved.
In a specific installation process, the data of the pile length, the diameter, the wall thickness and the like of the main pile and the auxiliary pile, the data of the height of the central connecting truss and the outer truss and the like can be adjusted according to requirements. For example, when the offshore wind turbine installation foundation assembly is set in a sea area with a water depth of about 15 m for a 6 megawatt wind turbine load, the pile length of the main pile may be set to 70 m, the diameter may be set to 7m, and when the main pile is a steel pipe pile, the thickness may be set to 75 mm; the pile length of the auxiliary pile can be set to be 40m, when the auxiliary pile is also a steel pipe pile, the wall thickness of the auxiliary pile can be set to be 28mm, the heights of the central connecting truss and the outer truss are equal in height and can be set to be 6m, and when the outer truss is circular, the diameter of the outer truss can be set to be 25 m.
The application has the advantages that: the application discloses an offshore wind turbine installation foundation assembly, which comprises a main pile, at least three auxiliary piles and an auxiliary platform, wherein the auxiliary piles are uniformly arranged around the main pile by taking the main pile as a center, the upper ends of the auxiliary piles extend out of a mud surface, and the lower ends of the auxiliary piles extend to the position below the mud surface; the auxiliary platform is arranged at the mud surface and comprises a central connecting truss, a plurality of sleeves are arranged on the central connecting truss, the sleeves are fixedly connected with the main pile or the auxiliary pile respectively, and a plurality of connecting rods are arranged between the sleeves. Through above-mentioned technical scheme, can improve the bulk rigidity of offshore wind turbine generator system installation basic unit, in addition, through setting up outer truss and install the stopping additional in the inner zone of outer truss, can effectually reduce rivers to the scouring action of near the main pile mud face.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides an offshore wind turbine installation foundation assembly, includes the king pile, its characterized in that still includes:
the auxiliary piles are uniformly arranged around the main pile by taking the main pile as a center, the upper ends of the auxiliary piles extend out of the mud surface, and the lower ends of the auxiliary piles extend below the mud surface;
the auxiliary platform is arranged at the mud surface and comprises a central connecting truss, a plurality of sleeves are arranged on the central connecting truss and are respectively fixedly connected with the main pile or the auxiliary pile, and a plurality of connecting rods are arranged between the sleeves.
2. The offshore wind turbine installation foundation assembly of claim 1, wherein the auxiliary platform further comprises a fill material that fills an area within or adjacent to the central connecting truss.
3. Offshore wind turbine installation foundation assembly according to claim 2, wherein the filling material is stone or block concrete.
4. The offshore wind turbine installation foundation assembly of claim 2 or 3, wherein when the filling material is filled in the area inside and adjacent to the central connection truss, the auxiliary platform further comprises an outer truss disposed outside the central connection truss or externally connected to the central connection truss centering on the main pile, a plurality of the connection rods disposed between the outer truss and the central connection truss, and a protection net disposed at the side edge of the outer truss.
5. The offshore wind turbine installation foundation assembly of claim 4, wherein the outer truss is arranged in a circle or a polygon, the center of the outer truss is arranged at the main pile, and the included angle of the polygon is an obtuse angle.
6. The offshore wind turbine installation foundation assembly of claim 4, wherein the auxiliary platform further comprises a sink plate disposed outside the outer truss and fixedly connected to the outer truss.
7. The offshore wind turbine installation foundation assembly of claim 6, wherein the anti-sag plate is disposed at a lower end of an outer edge of the outer truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920557253.7U CN210341970U (en) | 2019-04-23 | 2019-04-23 | Installation foundation assembly for offshore wind turbine generator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920557253.7U CN210341970U (en) | 2019-04-23 | 2019-04-23 | Installation foundation assembly for offshore wind turbine generator system |
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| CN210341970U true CN210341970U (en) | 2020-04-17 |
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| CN201920557253.7U Active CN210341970U (en) | 2019-04-23 | 2019-04-23 | Installation foundation assembly for offshore wind turbine generator system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219317A (en) * | 2019-04-23 | 2019-09-10 | 中交上海港湾工程设计研究院有限公司 | A kind of base components for offshore wind power set installation |
| CN112249264A (en) * | 2020-10-30 | 2021-01-22 | 中国船舶重工集团公司七五O试验场 | Underwater anti-sinking platform |
| CN113718832A (en) * | 2021-09-16 | 2021-11-30 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power composite foundation |
-
2019
- 2019-04-23 CN CN201920557253.7U patent/CN210341970U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219317A (en) * | 2019-04-23 | 2019-09-10 | 中交上海港湾工程设计研究院有限公司 | A kind of base components for offshore wind power set installation |
| CN112249264A (en) * | 2020-10-30 | 2021-01-22 | 中国船舶重工集团公司七五O试验场 | Underwater anti-sinking platform |
| CN113718832A (en) * | 2021-09-16 | 2021-11-30 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power composite foundation |
| CN113718832B (en) * | 2021-09-16 | 2023-02-28 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power composite foundation |
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