阅读说明：本技术 海上风电基础冲刷防护装置 (Scouring protection device for offshore wind power foundation ) 是由 曾崇济 刘鑫 闫姝 张晓辉 傅望安 张康 刘铭烁 于 2021-09-16 设计创作，主要内容包括：本申请公开了一种海上风电基础冲刷防护装置,包括桩基础和导流群桩,沿潮流方向在所述桩基础的上游方向和所述桩基础的下游分别布置有所述导流群桩；所述导流群桩中至少一个导流桩与其它导流桩的高度不同,以用于形成扰乱潮流方向的扰流阶梯,对应的所述扰流阶梯之间形成以用于降低潮流流速的扰流通道。上述结构中通过导流群桩能够降低潮流的流速和潮流对桩周海床的冲刷能量,降低潮流对桩周土层的冲刷,从而保护桩周海床。(The application discloses an offshore wind power foundation scouring protection device which comprises a pile foundation and guide grouped piles, wherein the guide grouped piles are respectively arranged in the upstream direction of the pile foundation and the downstream of the pile foundation along the tidal current direction; at least one guide pile in the guide pile group is different from other guide piles in height so as to form a turbulence step disturbing the tidal current direction, and a turbulence channel used for reducing the tidal current flow speed is formed between the corresponding turbulence steps. In the structure, the flow velocity of tide and the scouring energy of the tide on the seabed around the pile can be reduced through the diversion grouped piles, and the scouring of the tide on the soil layer around the pile is reduced, so that the seabed around the pile is protected.)

1. The utility model provides an offshore wind power basis erodees protector which characterized in that includes:

pile foundations; and

the guide grouped piles are respectively arranged in the upstream direction of the pile foundation and the downstream of the pile foundation along the tide direction; at least one guide pile in the guide pile group is different from other guide piles in height so as to form a turbulence step disturbing the tidal current direction, and a turbulence channel used for reducing the tidal current flow speed is formed between the corresponding turbulence steps.

2. The offshore wind power foundation scour protection as claimed in claim 1, wherein the height of each of the guide piles in the guide piles is different, the guide piles are distributed around the pile foundation along the tidal current direction and form a turbulent flow step between adjacent guide piles; the protective area formed between the guide pile and the pile foundation surrounds the seabed around the pile foundation for reducing the flow velocity of the tidal current passing through the seabed around the pile foundation and disturbing the direction of the tidal current passing through the seabed around the pile foundation.

3. The scouring protection device for offshore wind power foundation according to claim 2, wherein the guide piles comprise two sets of guide piles, the two sets of guide piles are respectively arranged along the tidal current direction, an included angle with an opening facing the pile foundation is formed between the two sets of guide piles, and the included angle is less than or equal to 60 degrees.

4. The offshore wind power foundation scour protection as claimed in claim 3, wherein the guide piles are arranged at successively increasing heights in a direction close to the pile foundation.

5. Scouring protection device for offshore wind turbine foundations as claimed in any of claims 2 to 4, characterised in that adjacent guide piles are equally spaced.

6. Scouring protection device for offshore wind turbine foundations as claimed in any of claims 2 to 4, characterised in that the distance between adjacent guide piles increases progressively in the direction of approach to the pile foundations.

7. The offshore wind power foundation scour protection as claimed in claim 6, wherein the pile diameters of a plurality of the guide piles are the same.

8. The offshore wind power foundation scour protection of claim 6, wherein the pile diameter of a plurality of the guide piles increases gradually in a direction approaching the pile foundation.

9. The offshore wind power foundation scour protection as claimed in claim 2, wherein a plurality of the guide piles are arranged around the pile foundation in a U-shaped arrangement with the U-shaped openings facing the pile foundation.

10. The offshore wind power foundation scour protection as claimed in claim 2, wherein a plurality of said guide piles are arranged around said pile foundation in a quincuncial array.

11. The offshore wind power foundation protection device of any one of claims 1 to 5 and 7 to 10, wherein a protection plate is further arranged around the pile foundation along the tide direction, the protection plate is triangular in the orthographic projection plane perpendicular to the pile foundation axis, one end of the protection plate is abutted against the pile foundation, and the included angle corresponding to the end abutted against the pile foundation faces the flow guiding group pile; the setting height of contained angle is less than the guard plate is close to the one end setting height of pile foundation.

Technical Field

The application relates to the technical field of offshore wind power generation, in particular to an offshore wind power foundation scouring protection device.

Background

Wind energy is a clean and harmless renewable energy source and is increasingly paid attention to human beings, and particularly, offshore wind energy resources not only have high wind speed, but also are far away from a coastline and are not influenced by a noise limit value, so that a generator set is allowed to be manufactured in a large scale. The offshore wind power foundation in the offshore power generation facility is an important part for supporting the whole offshore wind turbine, and due to the action of tide and waves, silt on the seabed around the offshore wind power pile foundation can be washed away, so that the soil layer structure of the seabed around the pile foundation is damaged, and the stability around the pile foundation is influenced.

Content of application

The present application is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the application provides an offshore wind power foundation scouring protection device, which can reduce the flow velocity of tide and the scouring energy of the tide on the seabed around the pile, reduce the scouring of the tide on the soil layer around the pile, and further protect the seabed around the pile.

According to this application marine wind power basis erodees protector, includes:

pile foundations; and

the guide grouped piles are respectively arranged in the upstream direction of the pile foundation and the downstream of the pile foundation along the tide direction; at least one guide pile in the guide pile group is different from other guide piles in height so as to form a turbulence step disturbing the tidal current direction, and a turbulence channel used for reducing the tidal current flow speed is formed between the corresponding turbulence steps. The diversion grouped piles are arranged around the pile foundation, so that the flow velocity of tide and the scouring energy of the tide on the seabed around the pile can be reduced, and the scouring of the tide on the soil layer around the pile is reduced, so that the seabed around the pile is protected.

In some embodiments, the height of each guide pile in the guide piles is different, the guide piles are distributed around the pile foundation along the tidal current direction, and a turbulent flow ladder is formed between adjacent guide piles; the protective area formed between the guide pile and the pile foundation surrounds the seabed around the pile foundation for reducing the flow velocity of the tidal current passing through the seabed around the pile foundation and disturbing the direction of the tidal current passing through the seabed around the pile foundation.

In some embodiments, the guide piles comprise two sets of guide piles, the two sets of guide piles are respectively arranged along the tidal current direction, an included angle of an opening facing the pile foundation is formed between the two sets of guide piles, and the included angle is less than or equal to 60 degrees.

In some embodiments, the arrangement heights of the guide piles increase in sequence in the direction close to the pile foundation.

In some embodiments, adjacent guide piles are arranged at equal intervals.

In some embodiments, the arrangement distance between adjacent guide piles is gradually increased along the direction close to the pile foundation.

In some embodiments, the pile diameters of a number of the guide piles are the same.

In some embodiments, the pile diameter of a plurality of the guide piles is gradually increased along the direction close to the pile foundation.

In some embodiments, a plurality of the guide piles are arranged around the pile foundation in a U-shaped arrangement, and the U-shaped opening is oriented towards the pile foundation.

In some embodiments, a plurality of the guide piles are arranged around the pile foundation in a quincuncial arrangement.

In some embodiments, a protection plate is further arranged around the pile foundation along the tide direction, the protection plate is triangular in shape in an orthographic projection plane perpendicular to the axis of the pile foundation, one end of the protection plate abuts against the pile foundation, and an included angle corresponding to one end of the protection plate abutting against the pile foundation faces the flow guide grouped pile; the setting height of contained angle is less than the guard plate is close to the one end setting height of pile foundation. .

Drawings

Fig. 1 is a front view of an arrangement structure of guide piles in an embodiment of the present application.

Fig. 2 is a top view of an arrangement structure of guide piles in an embodiment of the present application.

Fig. 3 is a top view of an arrangement structure of guide piles in the second embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

The application provides an offshore wind power foundation scouring protection device, wherein the guide grouped piles are respectively arranged in the upstream direction of the pile foundation and the downstream of the pile foundation along the tidal current direction; at least one guide pile in the guide pile group is different from other guide piles in height so as to form a turbulence step disturbing the tidal current direction, and a turbulence channel used for reducing the tidal current flow speed is formed between the corresponding turbulence steps. In the structure, the flow velocity of tide and the scouring energy of the tide on the seabed around the pile can be reduced through the diversion grouped piles, and the scouring of the tide on the soil layer around the pile is reduced, so that the seabed around the pile is protected.

The technical scheme of the application is specifically explained in the following by combining the attached drawings 1-3;

as shown in fig. 1-2, a first embodiment of the present application discloses an offshore wind power foundation scouring protection device, which includes a pile foundation 1 and a guide group pile 2, wherein the guide group pile is respectively arranged in an upstream direction of the pile foundation and a downstream direction of the pile foundation along a tidal current direction, and the guide group pile 2 is respectively arranged in the upstream tidal current direction of the pile foundation 1 and the downstream tidal current direction of the pile foundation; at least one guide pile in the guide pile group is different from other guide piles in height so as to form a turbulent flow step for disturbing the direction of the tidal flow, a turbulent flow channel for reducing the flow velocity of the tidal flow is formed between the corresponding turbulent flow steps, the corresponding turbulent flow steps are two turbulent flow steps 22 on the same straight line, the direction of the turbulent flow channel formed by the two turbulent flow steps 22 on the same straight line is parallel to the radial direction of a pile foundation, an upstream protection area and a downstream protection area are respectively formed between the pile foundation 1 and the guide pile group piles 2 arranged at the upstream and the guide pile group piles 2 arranged at the downstream, the upstream protection area surrounds a pile circumference sea bed surface to be protected at the upstream, the downstream protection area surrounds a pile circumference sea bed surface to be protected at the downstream, the turbulent flow steps formed on the guide pile group in the upstream protection area and the downstream protection area can change the direction of the tidal flow, and the scouring flow of the tidal flow to the sea bed surface to be protected is reduced, the device can prevent the silt on the surface of the sea bed from being taken away by the tide, and meanwhile, a corresponding turbulence step on the flow guide group pile is matched to form a turbulence channel which is parallel to the radial direction of the pile foundation, so that the flow velocity of the tide flowing to the pile foundation can be reduced, and the seabed around the pile is protected.

Specifically, the heights of each guide pile 21 in the guide piles 2 are different, the guide piles 21 are distributed around the pile foundation along the tidal current direction, and a turbulent flow step 22 is formed between adjacent guide piles 21; the protection area 23 formed between the guide piles 21 and the pile foundation 1 surrounds the seabed around the pile foundation to reduce the tidal flow velocity passing through the seabed around the pile foundation and disturb the tidal flow direction passing through the seabed around the pile foundation, a plurality of guide piles with different heights are respectively arranged in the upstream tidal flow direction and the downstream tidal flow direction around the pile foundation, a certain height difference is formed between every two adjacent guide piles with different heights, so that turbulent flow steps are formed between every two adjacent guide piles with different heights, the tidal flow direction flowing through the turbulent flow steps deflects, meanwhile, certain retardation occurs in the turbulent flow steps, the flow velocity of the tidal flow is reduced, the tidal flow velocity of the tidal flow flowing over the seabed needing to be protected around the pile foundation is reduced, the seabed around the pile is prevented from being washed by the tidal flow, and the soil layer structure around the pile is damaged.

Specifically, the setting heights of the guide piles 21 are sequentially increased along the direction close to the pile foundation 1. That is to say, along the setting height that is close to pile foundation 1's direction guide pile 21 higher and higher, form vortex ladder 22 between two adjacent guide piles for form the vortex ladder of logical length between a plurality of guide pile 21, utilize the vortex ladder of logical length to change the trend direction of flow to the pile foundation, and play the effect of energy dissipation and reducing dashing to the trend, and then alleviate the trend and to the washing away of pile week sea bed surface, avoid washing away the formation in hole.

In some embodiments, the guide piles 2 include two sets of guide piles, the two sets of guide piles are respectively arranged along the tidal current direction, an included angle of an opening facing the pile foundation is formed between the two sets of guide piles, and the included angle is less than or equal to 60 °. That is, the guide piles 21 are arranged around the pile foundation in a triangular arrangement with an opening direction facing the pile foundation and an opening angle of 60 ° or less. That is to say, a plurality of guide piles form a guide grouped pile with a triangular shape, the opening direction of the guide grouped pile with the triangular shape faces the pile foundation, the opening included angle formed by the guide grouped pile with the triangular shape is far away from the pile foundation, the opening included angle of the guide grouped pile with the triangular shape is less than or equal to 60 degrees, and the opening included angle of the guide grouped pile with the triangular shape in the example is 45 degrees. It should be noted that the opening angle of the guide piles and the distance from the pile foundation are satisfied, and the extended connection line of the guide piles at the outermost side close to the pile foundation can surround the seabed to be protected around the pile foundation.

In some embodiments, the guide piles 21 are arranged at equal intervals. That is to say, the guide piles in the guide grouped piles are arranged at equal intervals, and equal-length turbulence steps are formed between adjacent turbulence piles, so that the effect of the whole guide grouped pile on stable tide buffering and turbulence is facilitated.

Optionally, the arrangement distance between adjacent guide piles 21 gradually increases in the direction approaching the pile foundation. That is to say, when arranging the guide piles in the direction that is close to the pile foundation, improve the interval between the adjacent pile foundation gradually, reduced the density of setting up of guide pile to a certain extent, reduced construction cost.

In some embodiments, the diameter of several of the guide piles 21 is the same. That is to say, the pile diameters of the guide piles arranged around the pile foundation are the same, so that the tide is relatively stable and buffered to a certain extent.

Optionally, the pile diameter of a plurality of the guide piles 21 gradually increases in a direction approaching the pile foundation. That is to say, the pile diameters of the guide piles arranged around the pile foundation are different, the pile diameters of the guide piles are sequentially increased in the direction close to the pile foundation, the turbulence area of the gradually increased pile diameters to the tide is increased along with the gradual increase of the pile diameters of the guide piles close to the pile foundation, the buffering effect on the tide is more and more obvious, and therefore the purposes of energy dissipation and impact reduction of the tide passing through the seabed around the pile foundation are achieved, the erosion of the tide to the seabed around the pile foundation is reduced, and the soil layer structure of the seabed around the pile foundation is prevented from being damaged by the tide.

In some embodiments, a plurality of the guide piles 21 are arranged around the pile foundation 1 in a U-shaped arrangement, and the U-shaped opening is directed toward the pile foundation. That is to say, a plurality of guide piles are arranged into a shape of a ladder-shaped guide group pile, the opening direction of the ladder-shaped guide group pile faces the pile foundation, the ladder-shaped guide group pile is arranged in the tide direction of the pile foundation, and the protection area enclosed by the ladder-shaped guide group pile and the pile foundation surrounds the seabed needing protection around the pile foundation. In other words, the opening width of the ladder-shaped guide grouped pile and the distance from the pile foundation are satisfied, and the guide pile connecting line positioned closest to the pile foundation can surround the seabed needing to be protected around the pile foundation after being prolonged.

Optionally, a plurality of the guide piles 21 are arranged around the pile foundation 1 in a quincuncial arrangement. Namely, a plurality of guide piles are arranged around the pile foundation to form a quincuncial guide grouped pile, a disturbed flow area is formed in the center of the quincuncial guide grouped pile, the flow passing through the disturbed flow area is blocked in the disturbed flow area, and the flow direction deflects, so that the flow speed of the flow flowing to the pile foundation is reduced, the flow direction is changed, and the erosion of the flow to the seabed around the pile foundation is reduced.

As shown in fig. 3, a second embodiment of the present application further discloses a scouring protection pile for an offshore wind power foundation, where a protection plate 3 is further disposed around the pile foundation along the tidal current direction, the protection plate 3 is triangular in an orthographic projection plane perpendicular to the pile foundation axis, and one end of the protection plate 3 abuts against the pile foundation 1 and an included angle corresponding to one end of the protection plate 3 abutting against the pile foundation 1 faces the guide pile group 2; the setting height of contained angle is less than the guard plate is close to the one end setting height of pile foundation. That is to say, still be provided with the triangle-shaped swash plate around the pile foundation to the base of triangle-shaped swash plate supports and leans on the periphery of pile foundation, and the contained angle with the one side of supporting and leaning on the pile foundation periphery is towards water conservancy diversion crowd's pile, and the setting height of contained angle will be less than the height of supporting and leaning on the pile foundation, makes the triangle-shaped swash plate can further weaken around the washing of pile to pile circumference seabed by the round hoof vortex streaming.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In this application, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.