CN211312407U

CN211312407U - Buoy type breakwater

Info

Publication number: CN211312407U
Application number: CN201922096319.XU
Authority: CN
Inventors: 刘必劲; 初岳峰; 傅丹娟; 方文
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-21
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a buoy type breakwater, include: the device comprises a flat platform, a first semi-cylindrical buoy part, a second semi-cylindrical buoy part, a first flexible lower hem and a second flexible lower hem, wherein the first semi-cylindrical buoy part is arranged on the flat platform; wherein: the first buoy component is fixed on a first side of the flat platform, the second buoy component is fixed on a second side of the flat platform opposite to the first side, opening surfaces of the first buoy component and the second buoy component face towards each other, and a semicircular surface of the first buoy component and a semicircular surface of the second buoy component are far away from each other; the upper end of the first flexible lower hem is connected with the lower part of the first buoy part and is vertical to the flat platform, and the lower end of the first flexible lower hem is connected with a counterweight. The upper end of the second flexible lower hem is connected with the lower part of the second buoy part and is vertical to the flat platform, and the lower end of the second flexible lower hem is connected with a counterweight. The embodiment can obtain good wave-breaking performance.

Description

Buoy type breakwater

Technical Field

The utility model relates to a breakwater field specifically relates to a buoy type breakwater.

Background

A breakwater refers to a hydraulic structure required to form a sheltered water area. It is usually located at the periphery of harbor waters, and is resistant to the invasion of floating sand and ice, so as to ensure that the harbor has enough water depth and stable water surface to meet the requirements of berthing, loading and unloading operation and sailing in and out.

The existing pontoon type breakwater mainly comprises a pontoon type, a raft type and the like. The buoyancy tank is the simplest and most widely applied structure, but the structure of the buoyancy tank is greatly stressed by the action of wave force, so that the anchoring system is greatly stressed, the possibility of damage or anchor walking of the anchoring system is increased, and the manufacturing cost of the buoyancy tank is obviously increased along with the increase of the width of the dike, which is uneconomical. Buoyant raft breakwaters have limited wave-breaking action in the face of longer periods of waves due to their shallow draft. The wave-eliminating principle of the float-type breakwater is similar to that of a float box type, the effect of absorbing wave energy is slightly stronger than that of the float box type, and meanwhile, the width of the breakwater is increased, and the cost is saved compared with that of the float box type. However, the most basic double-buoy type structure at present has poor wave-breaking performance due to shallow draft.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pontoon type breakwater can effectively improve the unrestrained performance that disappears.

The utility model provides a buoy formula breakwater, include: the device comprises a flat platform, a first semi-cylindrical buoy part, a second semi-cylindrical buoy part, a first flexible lower hem and a second flexible lower hem, wherein the first semi-cylindrical buoy part is arranged on the flat platform; wherein:

the first buoy component is fixed on a first side of the flat platform, the second buoy component is fixed on a second side of the flat platform opposite to the first side, opening surfaces of the first buoy component and the second buoy component face towards each other, and a semicircular surface of the first buoy component and a semicircular surface of the second buoy component are far away from each other;

the upper end of the first flexible lower hem is connected with the lower part of the first buoy part and is vertical to the flat platform, and the lower end of the first flexible lower hem is connected with a counterweight.

The upper end of the second flexible lower hem is connected with the lower part of the second buoy part and is vertical to the flat platform, and the lower end of the second flexible lower hem is connected with a counterweight.

Preferably, the bottom surface of the flat platform is provided with a beam at each of the first side and the second side, and the upper end of the first flexible lower hem and the upper end of the second flexible lower hem are fixed on the beam.

Preferably, the flat plate platform is formed by splicing a plurality of flat plates.

Preferably, the top surface of the flat bed platform is provided with stringers extending from the first side to the second side at predetermined intervals.

Preferably, the top surface of the flat platform is further provided with a plurality of vertical beams perpendicular to the flat platform at the first side and the second side, one end of each vertical beam is connected with the flat platform, and the other end of each vertical beam is connected with the inner wall above the first buoy part or the second buoy part.

Preferably, the buoy further comprises a third buoy member in the shape of a half cylinder; and the third buoy part is connected to the middle position of the bottom surface of the flat platform through the opening surface of the third buoy part.

Preferably, the first flexible skirt and the second flexible skirt are made of vulcanized rubber.

Preferably, the flat platform is made of PE material.

Preferably, the first buoy member and the second buoy member are spliced by a plurality of sub-buoys; or the first buoy member and the second buoy member are integrally formed.

Preferably, the semi-circular surfaces of the first pontoon component and the second pontoon component extend out of the flat plate platform.

To sum up, the pontoon-type breakwater that this embodiment provided increases flexible lower hem structure through the below at first flotation pontoon part and second flotation pontoon part to set up the weight piece at the lower extreme of flexible lower hem and increase the draft, compare the rigidity riser, the atress of flexible lower hem is littleer, and is difficult for destroying, and the flat plate platform at middle part adopts the small panel concatenation combination to form simultaneously, and the cost is low, the simple structure, easily transportation and installation, stable in structure are reliable, and can effectively wave dissipation.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a buoy breakwater provided in an embodiment of the present invention.

Fig. 2 is a left side view of the buoy type breakwater provided by the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a buoy type breakwater, including: the platform comprises a flat platform 10, a first buoy member 20 and a second buoy member 30 which are semi-cylindrical, a first flexible skirt 40 and a second flexible skirt 50.

In this embodiment, the first pontoon assembly 20 is fixed to a first side of the flat bed platform 10 and the second pontoon assembly 20 is fixed to a second side of the flat bed platform 10 opposite the first side. Wherein, first buoy part 20 with second buoy part 30 all has open face and semicircle face, first buoy part 20 with the relative orientation of open face of second buoy part 30, the semicircle face is kept away from relatively, just first buoy part 20 with the semicircle face of second buoy part 30 all extends dull and stereotyped platform 10.

In this embodiment, the first buoy member 20 and the second buoy member 30 may be formed by connecting a plurality of semi-cylindrical small buoys, or may be formed by integrally forming or splitting a large hollow cylinder, which is not limited in this disclosure.

In this embodiment, the flat platform 10 may be formed by splicing a plurality of flat plates, wherein a small flat plate is used instead of a complete large flat plate, so as to reduce the manufacturing cost and facilitate transportation and installation.

In the present embodiment, the bottom surface of the flat bed platform 10 is provided with a beam 11 at both the first side and the second side to support the flat bed platform 10. The top surface of the flat bed platform 10 is provided with stringers 12 extending from the first side to the second side at predetermined intervals to further secure the flat bed platform 10. The top surface of the flat platform 10 is further provided with a plurality of vertical beams 13 perpendicular to the flat platform 10 at the first side and the second side, one end of each vertical beam 13 is connected with the flat platform 10, and the other end of each vertical beam is connected with the inner wall above the first buoy part 20 or the second buoy part 30. In this way, the cross beams 11, the longitudinal beams 12, and the vertical beams 13 can be combined to form a fixed framework to connect the components of the pontoon-type breakwater. Wherein the content of the first and second substances,

the cross beams 11, the longitudinal beams 12 and the vertical beams 13 may be made of steel, and the flat platform 10 may be made of PE, but it should be understood that the flat platform may also be made of other similar materials, which is not limited in the present invention.

In this embodiment, the first flexible skirt 40 has an upper end connected to the lower side of the first pontoon assembly 20 and is perpendicular to the flat bed platform 10, and a lower end connected to a weight member. Similarly, the upper end of the second flexible skirt 50 is connected to the lower part of the second pontoon assembly 30 and is perpendicular to the flat bed platform 10, and the lower end thereof is connected to a weight member.

Wherein, first flexible lower hem 40 and the flexible lower hem 50 of second can adopt the vulcanized rubber material of thickening or other similar flexible materials to make, the weight member can be steel block, stone or other heavier objects, can be according to the flagging length of first flexible lower hem 40 and the flexible lower hem 50 of second and the holistic specification such as size of float breakwater mass size of confirming the balancing weight, the utility model discloses do not describe here any longer.

The first flexible skirt 40 and the second flexible skirt 50 may be further fixed to the cross beam 11, so as to ensure the stability of connection and prevent the first flexible skirt 40 and the second flexible skirt 50 from falling under the impact of waves.

Referring to fig. 2, the pontoon breakwater further includes a third pontoon member 60 having a semi-cylindrical shape; the third pontoon assembly 60 is connected to the bottom surface of the flat bed platform 10 at a central position thereof through an open surface thereof. The third pontoon assembly 60 provides more buoyancy to the middle of the platform 10 and prevents the middle of the platform 10 from bending due to gravity.

Wherein, generally, the radius of the third pontoon member 60 is smaller than the radii of the first pontoon member 20 and the first pontoon member 30.

The following detailed description discloses the working principle of the utility model:

in this embodiment, when the pontoon-type breakwater of this embodiment is placed in water, the first pontoon part 20, the second pontoon part 30, the first flexible skirt 40, and the second flexible skirt 50 of the pontoon-type breakwater are arranged in a direction perpendicular to the incident direction of waves. The wave-facing surface at the water surface is a semicircular surface of the first pontoon assembly 20 or the second pontoon assembly 30 (assuming that the wave-facing surface at the water surface is a semicircular surface of the first pontoon assembly 20), and the semicircular surface has a stronger wave energy absorption effect. The back wave surface of the pontoon breakwater is the semi-circular surface of the second pontoon part 30, and when the breakwater moves under the action of waves, the semi-circular surface at the back wave position can also reduce the secondary wave-making action of the breakwater on the rear shield water area.

Meanwhile, the first flexible skirt 40 and the second flexible skirt 50 can also play a role of reflecting waves. Compare rigidity lower hem, the flexible lower hem that has the counter weight can reduce the wave power that the breakwater received, prevents effectively that the structure from being destroyed by the wave. When the breakwater moves along with the waves, due to the action of the wave phase difference, the stress of the front flexible lower hem and the stress of the rear flexible lower hem are different (assuming that the first flexible lower hem 40 is in the front and the second flexible lower hem 50 is in the rear), the movement conditions are also different, so that a stronger disturbance effect can be generated on the waves, and the consumption of wave energy is facilitated. Meanwhile, the second flexible skirt 50 positioned at the rear can also reduce the secondary wave-making effect of the breakwater on the shield water area.

It should be noted that, in the present embodiment, the size specification of the first buoy member 20 and the second buoy member 30 and the thickness of the intermediate flat platform 10 can be selected according to the implementation requirement, and in addition, the buoy is of a hollow structure, and a certain amount of water or other objects can be injected into the buoy according to the requirement of the draught.

To illustrate the wave breaking effect of the present invention, the wave breaking performance of the breakwater of the present embodiment is tested by using a specific numerical simulation.

Wherein, the simulated test working condition is as follows: the water depth is 12m, the wave height is 2.15m, and the period is 6 s. The diameter of the first pontoon component 20 and the second pontoon component 30 is 1.5m, the width of the flat platform 10 between two rows of pontoon components is 8m, and when the top surface of the flat platform 10 is just submerged in water, the breakwater of the embodiment adopts the transmission coefficients of two different lengths when swinging down as shown in table 1:

TABLE 1

The transmission coefficient is defined as the ratio of the wave height behind the buoy breakwater to the incident wave height in front of the breakwater, and the smaller the transmission coefficient is, the better the wave dissipation effect of the buoy breakwater is. The result data show that the buoy type breakwater of the embodiment can reduce the wave height by more than half under the typical working condition, and the wave dissipation performance is good.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention 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 invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A pontoon breakwater, comprising: the device comprises a flat platform, a first semi-cylindrical buoy part, a second semi-cylindrical buoy part, a first flexible lower hem and a second flexible lower hem, wherein the first semi-cylindrical buoy part is arranged on the flat platform; wherein:

the upper end of the first flexible lower hem is connected with the lower part of the first buoy part and is vertical to the flat platform, and the lower end of the first flexible lower hem is connected with a counterweight;

2. The pontoon breakwater of claim 1, wherein the bottom surface of the flat bed platform is provided with a cross beam at each of the first and second sides, the upper ends of the first and second flexible skirts being secured to the cross beam.

3. The pontoon breakwater of claim 1, wherein the slab platform is formed by splicing a plurality of slabs.

4. The pontoon breakwater of claim 1, wherein the top surface of the flat bed platform is provided with stringers extending from the first side to the second side at predetermined intervals.

5. The pontoon breakwater of claim 1, wherein the top surface of the flat bed platform is further provided with a plurality of vertical beams perpendicular to the flat bed platform at the first and second sides, the vertical beams having one end connected to the flat bed platform and the other end connected to the inner wall above the first pontoon assembly or the second pontoon assembly.

6. The pontoon breakwater as claimed in claim 1, further comprising a third pontoon member having a semi-cylindrical shape; and the third buoy part is connected to the middle position of the bottom surface of the flat platform through the opening surface of the third buoy part.

7. The pontoon breakwater of claim 1, wherein the first and second flexible skirts are made of vulcanized rubber.

8. The pontoon breakwater of claim 1, wherein the flat bed platform is made of PE material.

9. The pontoon breakwater of claim 1, wherein the first pontoon member and the second pontoon member are spliced together from a plurality of sub-pontoons; or the first buoy member and the second buoy member are integrally formed.

10. The pontoon breakwater of claim 1, wherein semi-circular faces of the first pontoon member and the second pontoon member each extend beyond the flat plate platform.