CN115977018A - Wave shielding device based on floating type flexible flat plate - Google Patents
Wave shielding device based on floating type flexible flat plate Download PDFInfo
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- CN115977018A CN115977018A CN202211500434.9A CN202211500434A CN115977018A CN 115977018 A CN115977018 A CN 115977018A CN 202211500434 A CN202211500434 A CN 202211500434A CN 115977018 A CN115977018 A CN 115977018A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 35
- 238000010276 construction Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The invention relates to a wave shielding device based on a floating flexible flat plate, which comprises a flexible flat plate, an anchor chain and an anchor block, wherein two ends of the anchor chain are respectively connected to the flexible flat plate and the anchor block; the thickness of the flexible flat plate is gradually increased from the front end to the rear end of the middle part of the flexible flat plate, and the thickness of the flexible flat plate is gradually increased from the two sides of the flexible flat plate to the middle part respectively. The waves are incident on the front edge of the flexible flat plate to form water elastic waves which are transmitted on the flexible flat plate. The wave speed of the water elastic waves in the middle of the flexible flat plate is larger than the wave speed of the two sides of the flexible flat plate, the water elastic waves deflect from the middle of the flexible flat plate to the two sides of the flexible flat plate, the water elastic wave height in the middle of the rear edge of the flexible flat plate is reduced, wave shielding is formed in the area of the rear edge in the middle of the flexible flat plate due to the fact that the water elastic waves deflect to the two sides, and ocean structures or coastal areas behind the flexible flat plate are effectively protected. Wave energy is transferred by changing the wave direction, and the wave energy of a marine structure or a coastal area behind the front impact flexible flat plate is weakened.
Description
Technical Field
The invention belongs to the technical field of ocean engineering, and particularly relates to a wave shielding device based on a floating type flexible flat plate.
Background
Wave energy is the energy in the process of water particle motion, and is continuously transmitted forward along the propagation direction of waves. After the wave enters the shallow water area, the wave height and the energy density are increased due to the shallow water action. If the waves become steep or the water depth drops below a certain limit, the waves break. A large amount of wave energy can be lost by the broken waves, so that water body turbulence in a shallow water area is caused, and near-shore sediment movement and beach scouring are caused. The waves directly act on the underwater structure to generate larger hydrodynamic load, so that the safety of the structure is threatened.
The breakwater is an engineering structure for resisting waves and protecting structures of ports, wharfs, oceans and seas. The breakwater can shield the invasion of waves to the offshore area, guarantee the implementation of offshore operation, and protect the safety of marine structures. The traditional gravity breakwater is formed by piling up natural or artificial broken stones on the seabed, and the self weight of the traditional gravity breakwater is utilized to ensure the stability of the whole breakwater. The breakwater is large in size, high in construction cost and large in environmental influence. The floating breakwater structure consists of a floating body and an anchor chain system, is easy to build and install, is suitable for water areas with large water level change or small and steep waves, and has slightly poorer breakwater effect than the traditional gravity breakwater.
The prior art discloses a floating breakwater device, consisting of a floating body and at least one breakwater fixed on the top of the floating body. The breakwater is positioned between the wave-facing surface and the back wave-facing surface of the floating body, and the distance between the wave-facing surface and the back wave-facing surface of the breakwater is smaller than the distance between the wave-facing surface and the back wave-facing surface of the floating body. The first preset distance is arranged between the wave-facing surface of the breakwater close to the wave-facing surface of the floating body and the wave-facing surface of the floating body, the second preset distance is arranged between the back wave-facing surface of the breakwater close to the back wave-facing surface of the floating body and the back wave-facing surface of the floating body, the first preset distance and the second preset distance are equal, and a gap is arranged between any two breakwaters.
When an incident wave interacts with the floating breakwater, the first breakwater reflects incident wave energy to the open sea to reduce transmitted waves; if a wave crosses a first dam, the second dam will chop the incoming wave, blocking the wave from crossing the entire structure, and the energy consumed by the movement of the blocked wave between the dams. A plurality of floating breakwaters can be spliced and connected in a unit form to form a finished breakwater system.
The floating breakwater is a multi-body type floating breakwater formed by connecting units consisting of a floating body and a plurality of baffles above the floating body, and has the following technical problems:
1) The multi-body floating breakwater has a complex structure and high cost. The floating breakwater weakens wave energy by means of reflection and friction, and when the floating breakwater faces large waves, the floating breakwater needs to increase the number of the breakwaters to weaken the waves, so that the construction cost of the structure is increased, and the integral design and construction difficulty is also improved.
2) The hydrodynamic force of the multi-body floating breakwater is large. The floating breakwater has partial structure submergence in the aquatic, and the structure can receive the effect of great hydrodynamic load. The arrangement of the dam increases the wave load of the structure, and the structure is easy to damage under the action of extreme waves.
3) The multi-body floating breakwater has larger draught and is easy to block the natural flow of water.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: the utility model provides a wave shielding device based on flexible dull and stereotyped of showy formula can effectively protect the marine structure thing or the coast region in flexible dull and stereotyped rear, simple structure, simple to operate, and construction and installation cost are low, and the protection architecture does not receive the destruction of water dynamic, improves water environmental friendliness.
The purpose of the invention is realized by the following technical scheme:
a wave shielding device based on a floating type flexible flat plate comprises a flexible flat plate, an anchor chain and an anchor block, wherein two ends of the anchor chain are respectively connected to the flexible flat plate and the anchor block; the thickness of the flexible flat plate is gradually increased from the front end to the rear end of the middle part of the flexible flat plate, and the thickness of the flexible flat plate is gradually increased from the two sides of the flexible flat plate to the middle part respectively.
Furthermore, the number of the anchor chains and the number of the anchor blocks are 4, and the 4 anchor chains are respectively connected with the 4 corners of the flexible flat plate and the 4 anchor blocks in a one-to-one correspondence mode.
Further, anchor chain rings are respectively arranged at 4 corners of the flexible flat plate and connected to the anchor chain.
Furthermore, the upper surfaces of the two sides of the flexible flat plate are cambered surfaces, and the intersecting line of the two cambered surfaces is a middle arc line.
Furthermore, the two sides of the flexible flat plate are symmetrical by taking the middle arc line as a symmetry axis.
Compared with the prior art, the invention has the following beneficial effects:
the waves are incident to the front edge of the flexible flat plate, and the water surface and the flexible flat plate jointly oscillate up and down to form a water elastic wave transmitted on the flexible flat plate. The propagation speed of the water elastic wave is influenced by the rigidity of the flexible flat plate, the propagation speed is high when the rigidity is high, and the propagation speed is low when the rigidity is low. The thickness of the flexible flat plate is gradually increased from the front end to the rear end of the middle of the flexible flat plate, the thickness of the flexible flat plate is gradually increased from the two sides of the flexible flat plate to the middle of the flexible flat plate, the rigidity of the middle of the flexible flat plate is rapidly increased due to the increase of the thickness, the wave speed of the water elastic wave in the middle of the flexible flat plate is higher than the wave speed of the two sides of the flexible flat plate, the water elastic wave deflects from the middle of the flexible flat plate to the two sides of the flexible flat plate, the water elastic wave height in the middle of the rear edge of the flexible flat plate is reduced, wave shielding is formed on the area of the rear edge in the middle of the flexible flat plate due to the deflection of the water elastic wave to the two sides, and an ocean structure or a coastal area behind the flexible flat plate is effectively protected.
The floating type flexible flat plate is used as a wave shielding structure, has shallow draft, is less in hydrodynamic load, is not easy to damage, has negligible immersion depth, cannot obstruct the natural flow of a water body, does not need to be provided with a multi-body floating breakwater and an anchoring system thereof, transfers wave energy by changing the wave direction, weakens the wave energy of an ocean structure or a coastal area behind the flexible flat plate impacted from the front side, does not need to increase the number of the flexible flat plates to eliminate waves, and has simple structure, convenient installation and low construction and installation cost.
Drawings
FIG. 1 is a schematic three-dimensional structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a longitudinal side view of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a lateral side view of an embodiment of the present invention.
In the figure:
1-flexible flat plate, 2-jacket type platform, 3-anchor chain and 4-anchor block.
Detailed Description
The present invention is described in further detail below.
As shown in fig. 1-3, a wave shielding device based on a floating flexible flat plate comprises a flexible flat plate 1, an anchor chain 3 and an anchor block 4, wherein two ends of the anchor chain 3 are respectively connected to the flexible flat plate 1 and the anchor block 4; the thickness of the flexible flat plate 1 is gradually increased from the front end to the rear end of the middle part of the flexible flat plate 1, and the thickness of the flexible flat plate 1 is gradually increased from the two sides of the flexible flat plate 1 to the middle part respectively. The front end of the flexible flat plate 1 is arranged towards the wave incidence direction; the marine structure (such as the jacket platform 2 shown in fig. 1) or coastal area is located behind the middle of the rear end of the flexible flat plate 1.
The flexible flat plate 1 floats on the water surface, and when waves enter the front end of the flexible flat plate 1, the water surface and the flexible flat plate 1 oscillate up and down together to form water elastic waves transmitted on the flexible flat plate 1. The propagation speed of the water elastic wave is influenced by the rigidity of the flexible flat plate 1, the propagation speed is high when the rigidity is high, and the propagation speed is low when the rigidity is low. The thickness of the flexible flat plate 1 is gradually increased from the front end to the rear end of the middle of the flexible flat plate 1, the thickness of the flexible flat plate 1 is gradually increased from two sides of the flexible flat plate 1 to the middle respectively, the rigidity of the middle of the flexible flat plate 1 is rapidly increased due to the increase of the thickness, the wave speed of the water elastic wave in the middle of the flexible flat plate 1 is higher than that of the two sides of the flexible flat plate 1, the water elastic wave is deflected from the middle of the flexible flat plate 1 to two sides of the flexible flat plate 1, the water elastic wave height in the middle of the rear edge of the flexible flat plate 1 is reduced, wave shielding is formed in the area of the rear edge of the middle of the flexible flat plate 1 due to the deflection of the water elastic wave to the two sides, and ocean structures or coastal areas behind the flexible flat plate 1 are effectively protected.
Specifically, the wave-sheltering device of this embodiment includes a float plate device and a mooring device.
The floating plate device is a single flexible flat plate 1 floating on the water surface, and the vertical projection of the floating plate device is rectangular. The rigidity of the flexible flat plate 1 continuously increases in the longitudinal direction (the wave propagation direction), and the rigidity thereof is greatest in the middle and smallest on both sides in the lateral direction (the vertical direction of the wave propagation). And anchoring pull rings are arranged at 4 corners of the flexible flat plate 1 and used for installing anchor chains 3.
The anchoring device comprises 4 anchor chains 3 and 4 anchor blocks 4, wherein two ends of each anchor chain 3 are respectively connected with an anchoring pull ring at 4 corners of the flexible flat plate 1 and the anchor blocks 4 at corresponding positions on the water bottom.
In the embodiment of the present invention, the stiffness distribution of the floating flexible flat plate 1 may be determined by the thickness, and the desired stiffness distribution is obtained by designing the thickness distribution of the flexible flat plate 1.
Preferably, the upper surfaces of the two sides of the flexible flat plate 1 are both cambered surfaces, and the intersecting line of the two cambered surfaces is a middle arc line. The two sides of the flexible flat plate 1 are symmetrical by taking the middle arc line as a symmetry axis. After adopting this kind of structure, the middle part arc that the flexible flat plate 1 middle part was drawn up from the front end to the rear end gradually has better sidesway energy effect to the wave of incident coming.
The rigidity of the floating flexible flat plate 1 is rapidly increased on the central line along the longitudinal direction, and the edges of two sides are not changed, so that the rigidity formed in the transverse direction is large in the middle and small in two sides, and therefore the floating flexible flat plate 1 deflects towards two sides when water elastic waves are transmitted, and the wave shielding effect is formed behind the floating flexible flat plate 1.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (5)
1. The utility model provides a wave shelters from device based on flexible dull and stereotyped of formula of floating which characterized in that: the anchor chain comprises a flexible flat plate, an anchor chain and an anchor block, wherein two ends of the anchor chain are respectively connected to the flexible flat plate and the anchor block; the thickness of the flexible flat plate is gradually increased from the front end to the rear end of the middle part of the flexible flat plate, and the thickness of the flexible flat plate is gradually increased from the two sides of the flexible flat plate to the middle part respectively.
2. A wave sheltering device based on floating flexible flat plate according to claim 1, characterized in that: the number of the anchor chains and the number of the anchor blocks are 4, and the 4 anchor chains are respectively connected with the 4 corners of the flexible flat plate and the 4 anchor blocks in a one-to-one correspondence mode.
3. A floating flexible flat panel based wave screen according to claim 1, wherein: and anchor chain hanging rings are respectively arranged at 4 corners of the flexible flat plate and connected to the anchor chain.
4. A floating flexible flat panel based wave screen according to claim 1, wherein: the upper surfaces of the two sides of the flexible flat plate are cambered surfaces, and the intersecting line of the two cambered surfaces is a middle arc line.
5. A floating flexible flat panel based wave screen according to claim 4, characterized in that: the two sides of the flexible flat plate are symmetrical by taking the middle arc line as a symmetry axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211500434.9A CN115977018A (en) | 2022-11-28 | 2022-11-28 | Wave shielding device based on floating type flexible flat plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211500434.9A CN115977018A (en) | 2022-11-28 | 2022-11-28 | Wave shielding device based on floating type flexible flat plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115977018A true CN115977018A (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211500434.9A Pending CN115977018A (en) | 2022-11-28 | 2022-11-28 | Wave shielding device based on floating type flexible flat plate |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1514461A (en) * | 1975-05-12 | 1978-06-14 | Floating Breakwaters Ltd | Floating breakwaters |
| DE2905527A1 (en) * | 1979-02-14 | 1980-08-28 | Yokohama Rubber Co Ltd | Flexible anchoring buoy - has anchor chain tube with oblong core at right angles, and elastic floats |
| CN2163791Y (en) * | 1993-04-13 | 1994-05-04 | 中国人民解放军总后勤部车船研究所 | Displacement boat |
| JPH0761392A (en) * | 1993-08-30 | 1995-03-07 | Minoru Kasei Kk | Blow-molded boat |
| KR20010105421A (en) * | 1999-12-08 | 2001-11-29 | 김종현 | Floating Breakwater System using small structure |
| EP1445188A1 (en) * | 2003-02-10 | 2004-08-11 | Eugenio Lattanzio | Boat hull |
| CN203755233U (en) * | 2013-05-27 | 2014-08-06 | 古国维 | Flexible belt damping curtain floating plate combined type floating type breakwater |
| US20160115664A1 (en) * | 2013-05-22 | 2016-04-28 | U-Li Changwoo Architecture & Engineering Co.,Ltd. | Fixed type structure unit for restoring lost sand, structure and restoring method |
| CN107600326A (en) * | 2017-09-25 | 2018-01-19 | 天津大学 | A kind of releasable formula gravity anchor system for deep ocean buoy |
| CN108945280A (en) * | 2017-05-19 | 2018-12-07 | 常州玻璃钢造船厂有限公司 | A kind of M type wave absorption glider for bow of dribbling |
| CN110457847A (en) * | 2019-08-20 | 2019-11-15 | 交通运输部天津水运工程科学研究所 | Floating breakwater design parameter determines method |
| CN110512567A (en) * | 2019-09-27 | 2019-11-29 | 中国海洋大学 | A kind of floating breakwater based on barge |
| CN114852270A (en) * | 2022-06-09 | 2022-08-05 | 中国能源建设集团广东省电力设计研究院有限公司 | Based on flexible photovoltaic power generation and monitoring buoy integration power generation facility that floats and sinks |
| CN115162264A (en) * | 2022-08-18 | 2022-10-11 | 西南交通大学 | Self-adaptive movable wing-type floating breakwater |
-
2022
- 2022-11-28 CN CN202211500434.9A patent/CN115977018A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1514461A (en) * | 1975-05-12 | 1978-06-14 | Floating Breakwaters Ltd | Floating breakwaters |
| DE2905527A1 (en) * | 1979-02-14 | 1980-08-28 | Yokohama Rubber Co Ltd | Flexible anchoring buoy - has anchor chain tube with oblong core at right angles, and elastic floats |
| CN2163791Y (en) * | 1993-04-13 | 1994-05-04 | 中国人民解放军总后勤部车船研究所 | Displacement boat |
| JPH0761392A (en) * | 1993-08-30 | 1995-03-07 | Minoru Kasei Kk | Blow-molded boat |
| KR20010105421A (en) * | 1999-12-08 | 2001-11-29 | 김종현 | Floating Breakwater System using small structure |
| EP1445188A1 (en) * | 2003-02-10 | 2004-08-11 | Eugenio Lattanzio | Boat hull |
| US20160115664A1 (en) * | 2013-05-22 | 2016-04-28 | U-Li Changwoo Architecture & Engineering Co.,Ltd. | Fixed type structure unit for restoring lost sand, structure and restoring method |
| CN203755233U (en) * | 2013-05-27 | 2014-08-06 | 古国维 | Flexible belt damping curtain floating plate combined type floating type breakwater |
| CN108945280A (en) * | 2017-05-19 | 2018-12-07 | 常州玻璃钢造船厂有限公司 | A kind of M type wave absorption glider for bow of dribbling |
| CN107600326A (en) * | 2017-09-25 | 2018-01-19 | 天津大学 | A kind of releasable formula gravity anchor system for deep ocean buoy |
| CN110457847A (en) * | 2019-08-20 | 2019-11-15 | 交通运输部天津水运工程科学研究所 | Floating breakwater design parameter determines method |
| CN110512567A (en) * | 2019-09-27 | 2019-11-29 | 中国海洋大学 | A kind of floating breakwater based on barge |
| CN114852270A (en) * | 2022-06-09 | 2022-08-05 | 中国能源建设集团广东省电力设计研究院有限公司 | Based on flexible photovoltaic power generation and monitoring buoy integration power generation facility that floats and sinks |
| CN115162264A (en) * | 2022-08-18 | 2022-10-11 | 西南交通大学 | Self-adaptive movable wing-type floating breakwater |
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