CN109056629A - A kind of fixed flexible water bladder breakwater structure flume experiment device in bottom surface - Google Patents
A kind of fixed flexible water bladder breakwater structure flume experiment device in bottom surface Download PDFInfo
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- CN109056629A CN109056629A CN201810972637.5A CN201810972637A CN109056629A CN 109056629 A CN109056629 A CN 109056629A CN 201810972637 A CN201810972637 A CN 201810972637A CN 109056629 A CN109056629 A CN 109056629A
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- breakwater
- flexible water
- water bladder
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- wave
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/02—Hydraulic models
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of fixed flexible water bladder breakwater structure flume experiment devices in bottom surface, including glass wave sink, flexible water bladder breakwater model, the first Weight plate, wave height recorder and water pressure monitoring device；The flexible water bladder breakwater model is arranged in glass wave sink；Its front and rear sides is respectively provided with one piece of first Weight plate, is connected between the first Weight plate and flexible water bladder breakwater model by wire；The front and rear sides of flexible water bladder breakwater model are arranged in wave height recorder；Water pressure monitoring device is arranged inside flexible water bladder breakwater model；The flexible water bladder breakwater model bottom is provided with the second Weight plate.Experimental provision structure proposed by the invention is simple, it is easy for installation, and using effect is reliable, the present invention adds the ruggedized construction of steel wire by plate, it properly can reliably solve the problems, such as flexible water bladder breakwater structure basal slip, experimental provision operability of the invention, repeatability are very strong.
Description
Technical field
The invention belongs to hydraulic experiment modellings, and in particular to a kind of fixed flexible water bladder breakwater structure in bottom surface
Flume experiment device.
Technical background
Breakwater is a kind of common harbour, coastal structures, for defending wave to harbour and operating area
Invasion maintain waters in zone of protection steady, guarantee ship stop, mooring, handling operation, ocean engineering construction operation, ocean
The safety of cultivation, coastal waters sports etc. improves ocean operation window time.
The structure type of breakwater is the wave absorption mechanism of various types of breakwater an important factor for influencing wave dissipation effect
Difference is summed up and is mainly the following wave absorption process:
(1) wave energy reflects, and utilizes part reflected energy before dike.
(2) the interference energy dissipating between the wave train, since the wave frequencies and structure itself of transmitting move the wave frequencies of generation not
With to form the mutual containing and counteracting fluctuated between two waves.
(3) turbulent fluctuation energy dissipating, collision friction that water body and structural interaction are formed and streams and destroys original wave particle
Regular movement is changed into mixed and disorderly turbulent fluctuation and reaches energy dissipating purpose.
(4) wave force does work, and wave force makes structure generate displacement or deformation work done, and part is irreversible energy
Consumption.
Flexible breakwater has certain for other type breakwater in terms of turbulent fluctuation energy dissipating and wave force acting
Advantage.Flexible material is prevalent in our lives, but it is nearly 30 years that flexible material, which is applied to breakwater field,
Just gradually have tried to.Flexible material is applied into breakwater field, is the innovation being of great significance.Therefore, it to verify soft
Property breakwater wave dissipation effect, study its wave absorption inherent mechanism, and flow field change feature etc. near its under specific operation, just need
It to be solved by suitable approach.
Since flexible breakwater structure wave absorption process is sufficiently complex, it is related to fluid structurecoupling process, is related to elastomer change
The non-linear process such as shape, existing theoretical analysis method well cannot accurately analyze this physical process.Therefore, at present
The wave dissipation effect of breakwater is mainly measured using lot of experiments data and numerical simulation technology.And the data of experimental study
It is usually used to compare with numerical simulation result again, to verify the accuracy of numerical simulation technology.Therefore, physical model experiment pair
The research that this flexible gravity formula moves water pocket breakwater structure problem is of great significance.
In current wave flume experiment, according to the difference of sink structure form, it is directed to different experiments model, difference
Experiment condition has different experimental method and means respectively.It, generally can be using in water for cement wall surface wave flume
Corresponding instrument equipment and physical model is fixed in the mode built a framework outside slot or install screw etc in sink；And
For glass wall wave flume, because its wall surface is all glass, the mode of screw is installed just not so drill to sink
It is too suitable.So instrument and equipment is generally used in sink external earth frame to carry out corresponding cloth in glass wall wave flume
It sets and installs.And for submerged breakwater experimental model etc., the gravity of experimental model itself is generally relied on to increase the static friction with ground
Power, to achieve the purpose that keep it fixed on ground.But when model self structure weight is smaller, it can not be made corresponding real
It tests under operating condition, reaches target of the bottom surface without sliding.In glass wall wave flume, it is directed to this problem, always without one
A good settling mode.
Summary of the invention
It is directed to the above problem existing for the fixed flexible water bladder breakwater flume experiment device in bottom surface, it is novel in order to study
Whether breakwater can reach required wave absorbing effect while reducing economic cost, in order to guarantee the fixed flexible water in bottom surface
In glass wave sink basal slip does not occur for capsule breakwater model, and the present invention provides a kind of fixed flexible water bladders in bottom surface
Breakwater structure flume experiment device.
To achieve the goals above, the present invention adopts the following technical scheme that:
The fixed flexible water bladder breakwater structure flume experiment device in bottom surface of the invention includes glass wave sink, flexibility
Water pocket breakwater model, the first Weight plate, wave height recorder and water pressure monitoring device；
The flexible water bladder breakwater model is arranged in glass wave sink；Its front and rear sides is respectively provided with one piece first
Weight plate is connected between the first Weight plate and flexible water bladder breakwater model by wire；Wave height recorder is arranged in flexible water bladder
The front and rear sides of breakwater model；Water pressure monitoring device is arranged inside flexible water bladder breakwater model；The flexible water bladder is anti-
Wave dike model bottom is provided with the second Weight plate.
Further, the flexible water bladder breakwater model includes rubber film and at least two brackets, the branch
Frame is connected with the second Weight plate, and rubber film, which is wrapped on bracket, forms closed structure, and the closed structure internal cavities are full of
Water.
Further, the bracket is rectangle support, and the rectangle support is equipped with chamfering.
Further, one end of the breakwater model is equipped with an intake-outlet, and top surface is equipped with water pressure monitoring device；Anti- wave
Several regions are separated out with internal partition inside dike.
Further, the connection ring being connected with wire is equipped at the breakwater model both ends, connection ring is away from bottom surface
Position is entire breakwater height 2/3rds；First Weight plate is equipped with the connection ring being connected with wire.
Further, two piece of first Weight plate is identical；The length of first Weight plate and glass wave sink width phase
Same or close, the width of the first Weight plate is more than or equal to twice of breakwater model width.
Further, distance of first Weight plate apart from breakwater model is more than or equal to twice of breakwater model width；
The thickness of first Weight plate is less than or equal to 10mm.
Further, the wave height recorder is arranged before and after away from breakwater model at 1.5m；Unilateral wave-height gauge arranges quantity
But it is both single, it is also possible to multiple；When unilateral wave height recorder quantity is multiple, wave height recorder arrangement interval is more than or equal to 0.5m.
The beneficial effects of the present invention are:
1, the present invention solves how in glass wave sink, consolidates to flexible water bladder breakwater experimental model bottom surface
Fixed problem.Generally, in similar model experiment, such as submerged breakwater model test, weight can be carried out in model internal cavities
Load, increases the weight of entire model, it is made not generate sliding in bottom surface in carrying out experimentation.And the present invention is targeted
Flexible water bladder breakwater model, inside configuration cavity needs are hydraulically full, can not be increased by being loaded inside it
The weight of total.Therefore, its being fixed on sink bottom surface steadily is only made by external device (ED).And in glass wave water
In slot, bottom surface glass surface inherently smooth surface, this is even more the difficulty for increasing this experiment.So bottom can not be solved
Face slippage, either submerged breakwater or this flexible water bladder breakwater structure model, flume experiment all can not be successfully progress.
The present invention is just exactly directed to the new experimental provision scheme that above-described difficulty is proposed.
2, the influence of the sheet metal stream field of the present invention for being placed in sink bottom surface is negligible.Therefore, may be used
To achieve the purpose that reduce experimental error.
The fixed flexible water bladder breakwater structure flume experiment in bottom surface can not reinforce it in its flexible surface.Due to entering
Ejected wave and back wave have an impact, and therefore, also the unsuitable bonding frame above sink reinforces it.So, it is contemplated that both
It can smoothly solve the problems, such as reinforcing, and the influence of stream field can be preferably minimized, have devised experimental provision of the invention.
3, experimental provision structure proposed by the invention is simple, easy for installation, and using effect is reliable, therefore, the present invention
Reproducibility it is stronger, can be generalized in other similar flume experiment devices.The present invention adds wire by Weight plate
Ruggedized construction properly can reliably solve the problems, such as flexible water bladder breakwater structure basal slip.Material therefor is simple and easy to get, real
Experiment device structure is simple, especially has practicability.Therefore, experimental provision operability of the invention, repeatability are very strong.
Detailed description of the invention
Fig. 1 is the present invention experiment simple schematic three dimensional views of integral arrangement
Fig. 2 is water pocket breakwater experimental model frame diagram of the present invention
Fig. 3 is present invention experiment integral arrangement side view
Fig. 4 is sheet metal schematic diagram used in the present invention
In figure: 1-sheet metal, 2-finer wires, 3-water pocket breakwater model frameworks, inside 4-water pocket breakwater models
Interlayer, 5-water pocket breakwater models, 6-wave height recorders, 7-water pocket intake-outlets, 8-water pressure monitoring devices, 9-steel wire connection rings,
10-rectangle brandreths.11-counterweight steel plates.
Specific embodiment
A specific embodiment of the invention is described further with reference to the accompanying drawing.
Referring to Fig. 1 to Fig. 4, the present invention is a physical model experiment device, it is preferred that emphasis is solves flexible water bladder breakwater and exists
The problem how fixed in glass wave sink, including glass wave sink, flexible water bladder breakwater model, the first Weight plate,
Wave height recorder and water pressure monitoring device；The flexible water bladder breakwater model is arranged in glass wave sink；Its front and rear sides is each
Equipped with one piece of first Weight plate, connected between the first Weight plate and flexible water bladder breakwater model by wire；Wave height recorder is set
It sets in the front and rear sides of flexible water bladder breakwater model；Water pressure monitoring device is arranged inside flexible water bladder breakwater model；It is described
Flexible water bladder breakwater model bottom be provided with the second Weight plate.
In one particular embodiment of the present invention, device is built and is tested as follows:
Step 1: experimental model production
The characteristics of experimental model, is that its surface is flexible rubber material, none firm form.
Therefore, it first has to build a model framework, rubber film is covered on water pocket breakwater model framework 3.Such as
Fig. 2, water pocket breakwater model framework 3 are welded by two rectangle brandreths 10 and one block of counterweight steel plate 11.Wherein, every rectangle
Brandreth 10 is all welded with two steel wire connection rings 9 for being used to connect finer wire 2, and steel wire connection ring 9 is welded on rectangle brandreth 10
At 2/3rds height of ground.
Then, the sufficiently large rubber film of a bulk area is covered on water pocket breakwater model framework 3, and is repaired
It cuts.Wherein, super glue cementation can be selected in the fixed form of rubber film and water pocket breakwater model framework 3.Then, in film
Surface corresponding position cuts out size required for water pocket intake-outlet 7 and hydraulic pressure detector 8, and carries out water pocket intake-outlet 7
Water-tight work and hydraulic pressure detector 8 installment work.
Later, it is open by water pocket side and carries out the installation of water pocket breakwater model internal partition 4.Interlayer will be inside water pocket
Region division can carry out cementation with seccotine at four parts, interlayer.The glass that suitable size can be selected in water pocket side opening carries out
Cementation sealing, it is also possible to which remaining rubber carries out cementation sealing.
Finally, internally filling the water according to required experiment condition condition, passing through hydraulic pressure water pocket by water pocket intake-outlet 7
8 observation water capsule inside water pressure of detector.After the completion of work, watertight processing is carried out, and water pocket model is placed into experimental trough and is closed
Suitable region.
Step 2: experimental model is fixed and wave height recorder installation
Sheet metal 1 is placed at the distance of twice and the above breakwater width before and after away from breakwater.It may be noted that sheet metal 1
On be welded with steel wire connection ring 9 on one side should be close to breakwater while, two blocks of sheet metals 1 and breakwater should form symmetrical cloth
It sets.Later, water pocket breakwater model 5 is attached by four finer wires 2 with sheet metal 1 respectively.It may be noted that four finer wires
2 should be at tensioned state, and the tensile stress of four finer wires 2 at this time is comparable.Finally, passing through above glass wave sink
The mode of bonding frame installs wave-height gauge 6.Wave-height gauge 6 should be mounted on away from 1.5m before and after breakwater.Multiple wave-height gauges 6 are such as installed,
Each of which 6 spacing of wave-height gauge should be in 0.5m or more.
Step 3: checking experiment device is tested
Before entry into the trial, carrying out last inspection to entire experimental provision is essential step.First should
Whether checking experiment equipment and instrument are installed in place, and whether junction is secured.Then, just whether corresponding monitoring instrument state
Often, it can work normally and read data.It is tested finally, making wave according to set operating condition.
In another specific embodiment of the invention, the first Weight plate and the second configuration plate are sheet metal, wire
It is selected as steel wire.Rubber film is wrapped on rectangle brandreth, the major part of flexible water bladder breakwater model is constituted, inside
Cavity makes the cambered surface distressed structure of entire breakwater full of water, therefore referred to as flexible water bladder.Pacify in the bottom of breakwater structure
A counterweight steel plate is filled, the gravity of total is increased.One block of sheet metal is placed in place before and after breakwater respectively, and with thin steel
Steel plate is connect by silk with breakwater, to provide breakwater one downward pulling force, increases breakwater bottom surface and glass wave sink
Static pressure between ground achievees the purpose that breakwater bottom surface is avoided to slide.
Wherein, the corner angle of rectangle brandreth need to carry out chamfered.Also, water pocket breakwater is needed with other phases such as glass cement
Watertight processing is carried out like material.
Further, it is equipped with an intake-outlet by basal surface position in one end of breakwater model, top surface is equipped with a water pressure monitoring
Device.Four regions are separated out with rubber film inside breakwater, are dissipated with achieving the purpose that increase wave energy.Wherein, breakwater end
Place is equipped with the connection ring being connected with finer wire.Connection ring is at entire breakwater height 2/3rds away from basal surface position.
Further, in order to solve the problem of that the maximum difficulty of this flume experiment i.e. breakwater bottom surface does not slide, this hair
It is bright in addition to breakwater bottom increase by one block of steel plate other than, be also placed with one piece respectively in its front-rear position, do not influencing to be made as far as possible
In the case where wave, the pulling force of breakwater obliquely is given.This is main innovation point of the invention.
Wherein, two pieces of front and back sheet metal thickness is usually no more than 10mm, steel plate length and sink similar width, steel plate width
It is preferred that twice of breakwater width or more.It is welded with steel wire connection ring towards breakwater one end in sheet metal, to facilitate steel wire
Connection.It should be noted that two pieces of steel plate specifications are identical.
Further, when wave action is on breakwater, breakwater by action of wave force have one be subjected to displacement become
Gesture.Key point of the invention is that, by laying two blocks of symmetrical steel plates in sink bottom surface, and makes itself and breakwater phase with steel wire
Even, so that steel plate is generated a downward tractive force to breakwater, increase the maximum static friction force between breakwater and sink, to reach
To the purpose for preventing breakwater basal slip.Sheet metal is selected, while being for the weight of the plate needed for meeting, moreover it is possible to as far as possible
Reduce the influence because of its geometric scale and bring stream field, to reduce experimental error.
Further, away from being disposed with wave height recorder at 1.5m before and after breakwater.Unilateral wave-height gauge arrangement quantity both can be individually,
It can be multiple.Particularly, when wave height recorder quantity is multiple, wave height recorder arrangement interval can be set to 0.5m or more.
Claims (8)
1. a kind of fixed flexible water bladder breakwater structure flume experiment device in bottom surface, it is characterised in that including glass wave water
Slot, flexible water bladder breakwater model, the first Weight plate, wave height recorder and water pressure monitoring device；
The flexible water bladder breakwater model is arranged in glass wave sink；Its front and rear sides is respectively provided with one piece of first counterweight
Plate is connected between the first Weight plate and flexible water bladder breakwater model by wire；Wave height recorder is arranged in the anti-wave of flexible water bladder
The front and rear sides of dike model；Water pressure monitoring device is arranged inside flexible water bladder breakwater model；The flexible water bladder breakwater
Model bottom is provided with the second Weight plate.
2. the fixed flexible water bladder breakwater structure flume experiment device in bottom surface according to claim 1, it is characterised in that
The flexible water bladder breakwater model includes rubber film and at least two brackets, the bracket and the second Weight plate phase
Even, rubber film, which is wrapped on bracket, forms closed structure, and the closed structure internal cavities are full of water.
3. the fixed flexible water bladder breakwater structure flume experiment device in bottom surface according to claim 2, it is characterised in that
The bracket is rectangle support, and the rectangle support is equipped with chamfering.
4. the fixed flexible water bladder breakwater structure flume experiment device in bottom surface according to claim 2, it is characterised in that
One end of the breakwater model is equipped with an intake-outlet, and top surface is equipped with water pressure monitoring device；Internal partition is used inside breakwater
It is separated out several regions.
5. the fixed flexible water bladder breakwater structure flume experiment device in bottom surface according to claim 1-4, institute
The connection ring being connected with wire is equipped at the breakwater model both ends stated, connection ring is entire breakwater height away from basal surface position
2/3rds；First Weight plate is equipped with the connection ring being connected with wire.
6. the fixed flexible water bladder breakwater structure flume experiment device in bottom surface according to claim 1, it is characterised in that
Two piece of first Weight plate is identical；The length of first Weight plate is of same size or close with glass wave sink, the first counterweight
The width of plate is more than or equal to twice of breakwater model width.
7. the fixed flexible water bladder breakwater structure flume experiment device in bottom surface according to claim 1 or 6, feature exist
It is more than or equal to twice of breakwater model width in distance of first Weight plate apart from breakwater model；First Weight plate
Thickness be less than or equal to 10mm.
8. the fixed flexible water bladder breakwater structure flume experiment device in bottom surface according to claim 1, it is characterised in that
The wave height recorder is arranged before and after away from breakwater model at 1.5m；Unilateral wave-height gauge arrangement quantity both can be individually, can also be with
It is multiple；When unilateral wave height recorder quantity is multiple, wave height recorder arrangement interval is more than or equal to 0.5m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972637.5A CN109056629B (en) | 2018-08-24 | 2018-08-24 | Bottom surface fixed type water tank experiment device for flexible water bag breakwater structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972637.5A CN109056629B (en) | 2018-08-24 | 2018-08-24 | Bottom surface fixed type water tank experiment device for flexible water bag breakwater structure |
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| CN109056629A true CN109056629A (en) | 2018-12-21 |
| CN109056629B CN109056629B (en) | 2020-07-17 |
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| CN201810972637.5A Active CN109056629B (en) | 2018-08-24 | 2018-08-24 | Bottom surface fixed type water tank experiment device for flexible water bag breakwater structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798223A (en) * | 2020-12-28 | 2021-05-14 | 浙江大学 | Experimental device for research slamming load and pressure intensity distribution of broken wave to cylinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112798223A (en) * | 2020-12-28 | 2021-05-14 | 浙江大学 | Experimental device for research slamming load and pressure intensity distribution of broken wave to cylinder |
| CN112798223B (en) * | 2020-12-28 | 2021-12-07 | 浙江大学 | Experimental device for research slamming load and pressure intensity distribution of broken wave to cylinder |
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| CN109056629B (en) | 2020-07-17 |
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