CN205087118U - A flexible drift island device for reservoir falling zone - Google Patents
A flexible drift island device for reservoir falling zone Download PDFInfo
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- CN205087118U CN205087118U CN201520817515.0U CN201520817515U CN205087118U CN 205087118 U CN205087118 U CN 205087118U CN 201520817515 U CN201520817515 U CN 201520817515U CN 205087118 U CN205087118 U CN 205087118U
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- island
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- floating
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Abstract
The utility model relates to a water conservancy water and electricity technical field especially relates to a flexible drift island device for reservoir falling zone, include: a plurality of flexonicss be used for floating the flotation tank device in the falling zone surface of water, the flotation tank device bears the weight of and is used for the ground surface soil of cultivating. Not only can adapt to in the falling zone the various circumstances that the water level often takes place to become the width of cloth, can improve the utilization ratio in the soil of falling zone in addition greatly, the influence of position of falling into water that is no longer disappeared, simultaneously, greatly reduced the pollution of falling zone land use to reservoir area quality of water.
Description
Technical field
The utility model relates to water conservancy and hydropower technical field, particularly relates to a kind of flexibility drift island device for reservoir drawdown band.
Background technology
Falling zone refers to river, the water level in lake disappears rise formed in river course rise period maximum water level and overboard period lowest water level line between territory, falling zone, be that a kind of special seasonal land and water interlocks wetlands ecosystems.Hydraulic and Hydro-Power Engineering falling zone refers to the territory, falling zone between the maximum water level that Hydraulic and Hydro-Power Engineering rises formed in reservoir and river course because flood control and generating need to regulate water level to disappear and lowest water level line.Reservoir drawdown band forms a huge Huan Ku ecological green belt between reservoir area water body and land bank.Reservoir drawdown band is a kind of special ecological environment under artificial interference, repeatedly periodically exposed and soak and fluctuation in stage, can make the landform of falling zone, soil and water regime that a series of change occurs.The large area soil that in hydroelectric station operation process, reservoir drawdown band can cause cannot utilize, the reservoir area masses plant regression zone land in quickly and accelerate soil stripping to reservoir bank, cause a large amount of soil erosion and reservoir sediment accumulation, residues of pesticides a large amount of in soil and a large amount of agricultural crop straw floating debriss also can cause environmental pollution, need a kind of falling zone Treatment process badly and solve the problems referred to above.
Utility model content
The purpose of this utility model is to provide a kind of flexibility drift island device for reservoir drawdown band, to solve the problem.
For achieving the above object, the utility model provides a kind of flexibility drift island device for reservoir drawdown band, comprising: multiple floating box device for floating on the falling zone water surface flexibly connected, this floating box device carries the ground surface soil for cultivating.
Further, this floating box device comprises the buoyancy tank for carrying ground surface soil, and this buoyancy tank is contained in and increases in buoyancy tank, this buoyancy tank top margin is connected with the link for flexibly connecting floating box device.
Further, the U-shaped slip-proofing device be made up of rigid plastic is provided with bottom this increasing buoyancy tank.
Further, this link comprises the wooden cross members connected in intersecting parallels, and the two ends of this wooden cross members are connected to circular ring type attaching parts and hook type coupling parts, and this circular ring type attaching parts and hook type coupling parts are used for flexibly connecting between multiple floating box device.
Further, the bottom surface of this wooden cross members is provided with increasing kickboard.
Further, this flexible drift island device also comprises the floating island being located at storehouse bank and fixes anchor cable.
Further, this floating island fixes maximum anchorage length and the degree of depth of anchor cable, according to the maximum stormy waves checking computations that reservoir may occur, calculates maximum wind power and the water level issuable maximum pull under combined action that disappears fast and determines.
Further, the maximum ground surface soil weight that can carry of this floating box device and the number of farming simultaneously can carrying out buoyancy calculation according to the material composition of this floating box device and volume and determine at most.
Compared with prior art, the beneficial effects of the utility model are: not only can adapt to the various situations that luffing often occurs water level in falling zone, and greatly can improve the degree of utilization in the soil of falling zone, no longer by the impact of the overboard position that disappears, meanwhile, the pollution of regression zone land use for reservoir area water quality is greatly reduced.
Accompanying drawing explanation
Fig. 1 is the birds-eye view of a kind of flexibility drift island device for reservoir drawdown band of the utility model;
Fig. 2 is the structural representation of a kind of flexibility drift island device floating box device for reservoir drawdown band of the utility model;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the B-B cutaway view of Fig. 2;
Fig. 5 be a kind of flexibility drift island device floating box device for reservoir drawdown band of the utility model disappear before operating diagram;
Fig. 6 is the backward operating diagram that disappears of a kind of flexibility drift island device floating box device for reservoir drawdown band of the utility model.
Detailed description of the invention
Below in conjunction with each embodiment shown in the drawings, the utility model is described in detail; but should be noted that; these embodiments are not limitation of the utility model; those of ordinary skill in the art are according to these embodiment institute work energy, method or structural equivalent transformations or substitute, and all belong within protection domain of the present utility model.
Shown in ginseng Fig. 1 to Fig. 6, present embodiments provide a kind of flexibility drift island device for reservoir drawdown band, comprising: multiple floating box device 1 for floating on the falling zone water surface flexibly connected, this floating box device 1 carries the ground surface soil for cultivating.
The key that falling zone is administered is exactly when significantly water rises, still maximizedly can utilize limited land resources, improve emigration`s income, the present embodiment is by flexible floatation island, soil is in flakes swum in waterborne, when water level goes up, whole floating island wafts on the water surface, see Fig. 5.When water level disappears, floating island can be deposited in bank slope surface, see Fig. 6 section by section according to the actual water level fallen that disappears.On floating island, planning has path can realize several individuals simultaneously operation, simultaneously because floating island not to disappear the impact fallen by water level, can farming throughout the year, and ensure the degree of utilization in soil.Meanwhile, the pollution of regression zone land use for reservoir area water quality is greatly reduced.And floating island is as superaqual landscape, elegant in appearance, the rare water tourism view in reservoir region immigration district can be become, promotion relocation of people from reservoir areas Regional Economic Development is had very important significance.
In the present embodiment, this floating box device 1 comprises the buoyancy tank 11 for carrying ground surface soil, and this buoyancy tank 11 is contained in and increases in buoyancy tank 12, this buoyancy tank 11 top margin is connected with the link for flexibly connecting floating box device 1.
In the present embodiment, bottom this increasing buoyancy tank 12, be provided with the U-shaped slip-proofing device 13 be made up of rigid plastic, during table broken for floating box device 1 sedimentation slope, increase the friction force bottom buoyancy tank 12.
In the present embodiment, this link comprises the wooden cross members 14 connected in intersecting parallels, the two ends of this wooden cross members 14 are connected to circular ring type attaching parts 15 and hook type coupling parts 16, and this circular ring type attaching parts 15 and hook type coupling parts 16 are for flexibly connecting between multiple floating box device 1.Interconnection technique ensures that floating island plays flexible characteristic, and water level can be adapted to disappear and the key of different topographic characteristics of bank slope, in the technical program, other hinge technologies all right of the connection between floating island part, fully ensures the freedom of movement between floating island ditch part.
In the present embodiment, the bottom surface of this wooden cross members 14 is provided with and increases kickboard 17.
In the present embodiment, this flexible drift island device also comprises the floating island being located at storehouse bank and fixes anchor cable.
In the present embodiment, this floating island fixes maximum anchorage length and the degree of depth of anchor cable, according to the maximum stormy waves checking computations that reservoir may occur, calculates maximum wind power and the water level issuable maximum pull under combined action that disappears fast and determines.
In the present embodiment, wind wave height method of calculating adopts Xi Xiaofu computing formula:
H＝0.015d0.34VF0.33；
L＝0.104d0.57VF0.33；
In formula, d is the depth of water, in rice; H, L are wave height and wavelength, in rice; V is wind speed, in meter per second; F is fetch, in kilometer in the formula having dimensional quantity.This formula is usually used in shallow water in the past, calculate unrestrained high time do not consider the concept of cumulative percentage, be pure empirical equation.False wind district scope 1 kilometer, the depth of water 30 meters, during wind speed 10.8-13.8 meter per second, roughly can try to achieve unrestrained high H and be about 0.6 meter.
Maximum speed when floating island pulling force calculates descending by fully developed sea entirety, the maximum pull produced.Acceleration distance by fully developed sea to water line of the most end, the extreme case of consideration stormy waves and reservoir level prompt drop.Use v
2(in formula, v is the speed of floating island any point on wave to=2gh and Ft=Mv, and g is acceleration due to gravity, and h is floating island height relative to trough or falling zone lowest elevation on wave.F is the pulling force of floating island with the descending generation of wave, t is the time that pulling force acts on floating island, M is the quality of floating island) issuable maximum pull when floating island comes downwards to falling zone lowest elevation from top of the waves can be calculated, design condition considers the extreme case that stormy waves and reservoir level drop quickly to nadir.Suppose that floating island is made up of 10 buoyancy tank unit, Bottom Runby 1.2 meters, anchor cable tensile impact in-service time 1 second, thus can in the hope of floating island maximum pull be 500kN, the anchor pole of 10 tons of pulling force can be adopted to fix.
Anchor rod anchored technique can adopt inner enlarged footing chambering process, and rock-bolt length is depending on design anchor pulling force and the actual geological condition in scene.
In the present embodiment, the maximum ground surface soil weight that can carry of this floating box device 1 and number of farming simultaneously can carrying out buoyancy calculation according to the material composition of this floating box device 1 and volume and determine at most.
Basic calculating index involved by the checking computations of the present embodiment buoyancy is as follows:
The density of water: 1000kg/m
3, buoyancy tank density: density: 0.95g/cm
3=950kg/m
3(natural rubber), acceleration due to gravity: 9.8m/s
2, density of wood 0.58g/cm
3=580kg/m
3(Eucalyptus common by south is considered), soil density: 1.4g/cm
3=1400kg/m
3.
Buoyancy calculation, according to law of Archimedes, can provide buoyancy: F=ρ vg.
The buoyancy that each buoyancy tank of preresearch estimates can provide except deadweight: 63.576kN.
Therefore, consider the up people's plantation of floating island and cooking, suppose that the average weight of a peasant is 75kg, weight is 0.75kN, one joint buoyancy tank both can meet and at least more than needs 10 people carried out farming above, and floating force safety factor is higher, can ensure the safety of field activity.
In the present embodiment, this flexible floatation island device is assembled according to following step sequence.
1) according to the floating element that floating island basic module constructional drawing is produced, as shown in Figures 2 to 4.Buoyancy tank 11 size can make according to actual conditions.In the factory the leak tightness of buoyancy tank 11 is detected, ensure to make quality.Wherein circular ring type attaching parts 15 and hook type coupling parts 16 are irony, and diameter is 20 ~ 30cm, for joint connection in site part overlap joint, should ensure the space operation degree of freedom between attaching parts during on-the-spot overlap joint operation.This U-shaped slip-proofing device 13 is tied up bottom buoyancy tank.
2) according to on-the-spot falling zone actual landform, propose floating island physical planning layout design scheme, for the maximum operative radius of floating island, maximum farming number, can carry out design planning according to buoyancy checking computations.For the region having large vessel process, the impact of floating island width for water surface area and navigation channel in conceptual design, should be considered.
3) slope, falling zone is cleared up domatic.Other rock individual is protruding, clears up into smooth domatic with hand air drill after smashing; Most rubble accumulation body also will be cleaned out, make whole domatic become one coherent smooth domatic.Select good ground surface soil, after floating island has connected, load buoyancy tank 11.
4) fix anchor cable according to the spacing of floating box device 1 at storehouse bank construction floating island, concrete anchor cable pulling force is calculated by anchor force and obtains.First segment floating island coupling link is connected with steel cable with between anchor cable, ensures the fastness connected.
5) overlap floating box device 1 section by section, according to actual landform and place integrated planning design paper, carry out on-the-spot flexible floatation island and connect work.
6) swim in long-term work and should often check, for occurring that the position be deteriorated by storehouse aqueous corrosion proterties condition will be carried out adjustment in time and be changed.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, all do not depart from the utility model skill equivalent implementations of doing of spirit or change all should be included within protection domain of the present utility model.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.
Claims (8)
1. for a flexibility drift island device for reservoir drawdown band, it is characterized in that, comprising: multiple floating box device for floating on the falling zone water surface flexibly connected, described floating box device carries the ground surface soil for cultivating.
2. a kind of flexibility drift island device for reservoir drawdown band according to claim 1, it is characterized in that, described floating box device comprises the buoyancy tank for carrying ground surface soil, and described buoyancy tank is contained in and increases in buoyancy tank, described buoyancy tank top margin is connected with the link for flexibly connecting floating box device.
3. a kind of flexibility drift island device for reservoir drawdown band according to claim 2, is characterized in that, be provided with the U-shaped slip-proofing device be made up of rigid plastic bottom described increasing buoyancy tank.
4. a kind of flexibility drift island device for reservoir drawdown band according to claim 3, it is characterized in that, described link comprises the wooden cross members connected in intersecting parallels, the two ends of described wooden cross members are connected to circular ring type attaching parts and hook type coupling parts, and described circular ring type attaching parts and hook type coupling parts are used for flexibly connecting between multiple floating box device.
5. a kind of flexibility drift island device for reservoir drawdown band according to claim 4, it is characterized in that, the bottom surface of described wooden cross members is provided with increasing kickboard.
6. a kind of flexibility drift island device for reservoir drawdown band according to claim 1, is characterized in that, also comprise the floating island being located at storehouse bank and fix anchor cable.
7. a kind of flexibility drift island device for reservoir drawdown band according to claim 6, it is characterized in that, described floating island fixes maximum anchorage length and the degree of depth of anchor cable, according to the maximum stormy waves checking computations that reservoir may occur, calculate maximum wind power and the water level issuable maximum pull under combined action that disappears fast and determine.
8. a kind of flexibility drift island device for reservoir drawdown band according to any one of claim 1 to 5, it is characterized in that, the ground surface soil weight that described floating box device is maximum can be carried and the number of farming simultaneously can carrying out buoyancy calculation according to the material composition of described floating box device and volume and determine at most.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817515.0U CN205087118U (en) | 2015-10-20 | 2015-10-20 | A flexible drift island device for reservoir falling zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817515.0U CN205087118U (en) | 2015-10-20 | 2015-10-20 | A flexible drift island device for reservoir falling zone |
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| Publication Number | Publication Date |
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| CN205087118U true CN205087118U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520817515.0U Expired - Fee Related CN205087118U (en) | 2015-10-20 | 2015-10-20 | A flexible drift island device for reservoir falling zone |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724335A (en) * | 2017-11-15 | 2018-02-23 | 湖北工业大学 | A kind of reservoir drawdown band slope green safeguard structure and means of defence |
| CN112482877A (en) * | 2020-11-16 | 2021-03-12 | 国家电网有限公司 | Anti-falling device for energy storage power station |
-
2015
- 2015-10-20 CN CN201520817515.0U patent/CN205087118U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724335A (en) * | 2017-11-15 | 2018-02-23 | 湖北工业大学 | A kind of reservoir drawdown band slope green safeguard structure and means of defence |
| CN112482877A (en) * | 2020-11-16 | 2021-03-12 | 国家电网有限公司 | Anti-falling device for energy storage power station |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20161020 |