CN205369184U - Nature fishway is imitated to tunnel formula - Google Patents
Nature fishway is imitated to tunnel formula Download PDFInfo
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- CN205369184U CN205369184U CN201521110212.1U CN201521110212U CN205369184U CN 205369184 U CN205369184 U CN 205369184U CN 201521110212 U CN201521110212 U CN 201521110212U CN 205369184 U CN205369184 U CN 205369184U
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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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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Abstract
The utility model belongs to hydraulic engineering and environmental protection engineering field relate to a nature fishway is imitated to tunnel formula. Connect low reaches riverbed and upper reservoir waters through the fishway main part, the fishway main part sets up inside the massif on power station factory building next door, the fishway import of fishway sets up in the low reaches riverbed of power station factory building, the fishway exit setting of fishway is in the upper reservoir of power station factory building, the fishway main part comprises the lateral wall that is located both sides, the roof arch that is located the bottom plate of bottom and is located the top, it will to be provided with a plurality of contraction sections in the fishway main part fishway main part interval is a plurality of fishway pond rooms, the fish perps of crossing on each contraction section communicates two adjacent fishway pond rooms. The utility model discloses not only can adapt to that the riverbed is narrow, the high steep orographic condition of river course right bank and left bank massif, can also overcome that open cut formula fishway construction scheme excavation project volume is big, the design and construction degree of difficulty is high, the dear shortcoming of cost to can the minimize to the land influence of lively plant of river course right bank and left bank mountain.
Description
Technical field
This utility model belongs to hydraulic engineering and field of environmental engineering, relates to the imitative nature fish pass of a kind of tunnel formula.
Background technology
Migration is that Fish affect because of physiological requirement, heredity and outside environmental elements etc., causes periodic orientation to reciprocate.Migration is a kind of feature that Fish are formed in system generating process, is that a kind of long-term of environment is adapted to by Fish, and it can make population obtain more favourable conditions of existence, produces offspring better.And now, the mankind, in order to be able to obtain water energy, build dam on natural river, block the migration passage of Fish, the natural ecological environment in heavy damage river.The mankind in order to remedy the destruction that river is caused, the multiple fish pass structure of design and construction when building dam, help the migration shoal of fish to cross dam.Fish pass belongs to one the most frequently used in fish pass structure.
Lower reache at the dam having fish pass, the attracting current that the migration shoal of fish is flowed out by fish pass import find fish pass import, swim into fish pass main body by fish pass import, finally swim to fishway exit, swim into upper reach, complete to climb over the process of dam upstream migration.
Along with China's construction of hydropower facilities advances to upstream, river course, often run into the situation choosing dam site in the high landform such as steep of, two sides, river course massif narrow in riverbed.In this case, riverbed often occupied by flood releasing structure, cause fish pass structure in riverbed or two sides near position, riverbed all without arrange place.Generally, according to the requirement that fish pass is arranged, and riverbed narrow zone precipitous in landform, fish pass can only be arranged on the massif that the height on Power Plant side is steep.In the prior art, when building the fish pass in above-mentioned landform, the mode of the open cut of employing, it is necessary to profoundly excavate massif so that fish pass both sides can form high steep hand excavation's side slope.In order to ensure stablizing of excavation slope, it is ensured that the safe operation of fish pass, side slope needs reinforcement supporting.Thus, the high steep landform of, river course two sides massif narrow in riverbed builds fish pass, not only excavation project amount is big, the design and construction technique difficulty of slope reinforcement supporting is high, involving great expense of whole engineering, and while this kind of fish pass of building, massif profoundly excavates, cause soil erosion, destroy the original ecological environment of terrestrial organism on mountain.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is in that to provide a kind of tunnel formula imitative nature fish pass, the orographic condition that riverbed is narrow, massif height in two sides, river course is steep can not only be adapted to, open cut formula fish pass can also be overcome to build the shortcoming that quantities is big, design and construction difficulty is high, involve great expense, and can reduce the impact of terrestrial organism on mountain, two sides, river course as far as possible.
For achieving the above object, this utility model is devised the imitative nature fish pass of following tunnel formula and is connected underwater bed and upper pond waters by fish pass main body, and it is characterized in that described fish pass main body is arranged on inside the massif on Power Plant side；Fish pass import is arranged in the underwater bed of Power Plant；Fishway exit is arranged in the upper pond of Power Plant；In described fish pass main body, the depth of water is h；Described fish pass main body is by being positioned at the sidewall of both sides, being positioned at the base plate of bottom and be positioned at the vault at top and form；It is provided with multiple contraction section in described fish pass main body and fish pass main body is spaced apart room, multiple fish pass pond；Fish perps of crossing on each contraction section described connects adjacent room, two fish pass ponds.
Further, the upstream side of described fish pass main body is connected to fishway exit section, and the distalmost end at described fishway exit section upstream side arranges fishway exit；It is provided with out port strobe in described fishway exit section；The downstream of described fish pass main body is connected to fish pass inducer, and the distalmost end in described fish pass inducer downstream arranges fish pass import, is provided with fish pass import bulkhead gate in described fish pass inducer.
Further, each contraction section is made up of a long constriction plate and a short constriction plate；Described long constriction plate in described same contraction section and on the vertical same vertical section being oppositely disposed in described fish pass main body of described short constriction plate；It was fish perps between long constriction plate and short constriction plate in same contraction section；A long constriction plate and a short constriction plate adjacent spaces on one sidewall of described fish pass main body are arranged.
In technique scheme, described long constriction plate is rectangular slab block structure, and described short constriction plate is at the up-narrow and down-wide trapezoidal plate block structure of horizontal water (flow) direction；The thickness, highly all identical in vertical direction on Parallel to the flow direction of described long constriction plate and described short constriction plate.
Further, the thickness of described long constriction plate and short constriction plate is 0.1～0.3m, is highly not less than the depth of water.
Further, the vault of described fish pass main body is the top that arc-shaped structure both sides connect two sidewalls respectively.
Also further, height H is the depth of water in fish pass main body 1.1～1.3 times of described fish pass main body.
Further, the width W of room, described pond is more than 2 times of the longest the fish eyes standard type length, and the length L of room, described pond takes 2.5～3 times of the longest the fish eyes standard type length.
In technique scheme, described vault being provided with and organizes luminaire more, the surface of room, described each pond is both provided with one group of luminaire, and the surface of described each contraction section is both provided with one group of luminaire；The position being not provided with contraction section on described base plate and two sidewalls is all inlaid with cobble, and the height of the cobble on said two sidewall is consistent with depth of water h.
Compared with traditional method, the utility model has the advantage of:
One, the rock mass more than fish pass top has enough cladding thicknesses, when the cavitation condition of rock is better, can make full use of rock mass from steady condition, adopt hole to dig, imitative nature fish pass and tunnel combined and is arranged in inside massif；
Its two, tunnel is reinforced concrete lining layer structure, utilizes rock mass and concrete lining structural union stress, jointly bears structure external load；Complete building, overhauling under operating mode, utilizing anchor pole lining cutting body and both sides rock mass to be unified, jointly bear the load such as pressure from surrounding rock, osmotic pressure.
Its three, under identical landform, geological conditions, the imitative nature fish pass pattern of tunnel formula, compared with the imitative nature fish pass layout pattern of open cut formula, saves excavation and support engineering amount largely.
Its four, owing to the imitative nature fish pass of tunnel formula is arranged in inside massif, takes up an area surface area less, decrease the soil erosion caused because of open cut, the eco-environmental impact of terrestrial plant, animal etc. is also less；
Its five, the contraction section that fish pass body interior of the present utility model is arranged replaces the concrete diaphragm in conventional fish pass, preferably the current in fish pass main body can be carried out energy dissipating.
Its six, base plate described in the utility model and two side be inlaid with cobble, build the point bar environment in river.Luminaire is set at the top of fish pass main body, it is possible to simulating nature light, reaches imitative natural purpose.This utility model improves the connection condition in river course, upstream and downstream, and slow down engineering construction affects hydrobiological obstructs such as Fish.
Accompanying drawing explanation
The flat overall that Fig. 1 is the imitative nature fish pass of tunnel formula arranges schematic diagram.
Fig. 2 is the plan structure schematic diagram of one section of fish pass main body of the imitative nature fish pass of tunnel formula.
Fig. 3 is the vertical profile structural representation of one section of fish pass main body of the imitative nature fish pass of tunnel formula.
Fig. 4 is the sectional view at A-A place in Fig. 2.
Fig. 5 is the sectional view at B-B place in Fig. 2.
Wherein: fish pass import 1, fish pass import bulkhead gate 2, fish pass inducer 3, fish pass main body 4, vault 4.1, sidewall 4.2, base plate 4.3, fishway exit section 5, go out port strobe 6, fishway exit 7, Power Plant 8, contraction section 9, long constriction plate 9.1, short constriction plate 9.2, cobble 10, crosses fish perps 11, room, fish pass pond 12, luminaire 13, underwater bed 14, upper pond 15.
Detailed description of the invention
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but it is not intended that restriction of the present utility model, only illustrates.Simultaneously by illustrating, advantage of the present utility model will become clearer from easy to understand.
As it is shown in figure 1, the imitative nature fish pass of tunnel formula designed by this utility model, it connects the waters of the underwater bed 14 of Power Plant 8 and upper pond 15 mainly by fish pass main body 4.Fish pass main body 4 is tunnel formula, is arranged in inside the massif on Power Plant 8 side.
The fish pass inducer 3 in fish pass main body 4 downstream, near lower reaches of river side, is arranged on underwater bed 14.The distalmost end in described fish pass inducer 3 downstream is fish pass import 1.The base plate of this fish pass import 1 is arranged on below the bank slope water surface curve of underwater bed 14.Between described fish pass import 1 and fish pass main body 4, namely fish pass import bulkhead gate 2 is set in inducer 3.
As shown in Figures 2 to 4, the both sides of fish pass main body 4 are sidewall 4.2, and top is circular arc vault 4.1, and lower section is base plate 4.3, described vault 4.1, sidewall 4.2 and base plate 4.3 seamless connection each other.What fish pass main body 4 adopted is reinforced concrete lining layer structure, makes full use of rock mass and reinforced concrete lining layer structural union stress in massif, jointly bears the load outside fish pass main body 4.Complete building, under the operating mode overhauled, utilize anchor pole reinforced concrete lining layer structure to be unified with the rock mass outside fish pass main body 4, jointly bear the load such as pressure from surrounding rock, osmotic pressure.
In the tunnel of fish pass main body 4, arranging contraction section 9, described contraction section 9 number is determined by the spacing distance of the length of fish pass main body 4, contraction section 9.Described contraction section 9 will be partitioned into room, multiple fish pass pond 12 in fish pass main body 4.Each contraction section 9 is made up of a long constriction plate 9.1 and a short constriction plate 9.2, and described long constriction plate 9.1 is rectangular slab block structure, and described short constriction plate 9.2 is at the up-narrow and down-wide right-angled trapezium plate structure of horizontal water (flow) direction.Vertical in the long constriction plate 9.1 belonged to together in a contraction section 9 and short constriction plate 9.2, it is relatively fixed on the cross section of fish pass main body 4.The one side of described long constriction plate 9.1 is connected with a sidewall 4.2 of fish pass main body 4, and the described bottom surface of long constriction plate 9.1 is connected with the base plate 4.3 of fish pass main body 4；The one side of described short constriction plate 9.2 is connected with another sidewall 4.2, and the bottom surface of described short constriction plate 9.2 is connected with base plate 4.3.Thickness on Parallel to the flow direction of described long constriction plate 9.1 and described short constriction plate 9.2, height in vertical direction are all identical；The bottom surface of described long constriction plate 9.1 does not contact with the bottom surface of described short constriction plate 9.2.Space between the long constriction plate 9.1 belonged to together in a contraction section 9 and short constriction plate 9.2 defined fish perps 11.The thickness of described long constriction plate 9.1 and described short constriction plate 9.2 is 0.1m～0.3m, and height is consistent with the depth of water in the imitative nature fish pass of tunnel formula, is generally taken as 1.5m～2.5m, and should be greater than growing most 2.5 times of fish eyes standard type length.
On the same sidewall 4.2 of tunnel in fish pass main body 4, each long constriction plate 9.1 and each short constriction plate 9.2 interval are arranged.Two adjacent contraction sections 9 constitute room, a fish pass pond 12.The width W of room, fish pass pond 12 should be greater than growing most 2 times of fish eyes standard type length, and the length L of room, fish pass pond 12 should take 2.5～3 times of the longest the fish eyes standard type length.
The vault 4.1 of described fish pass main body 4 is the top that arc-shaped structure both sides connect two sidewalls 4.2 respectively.Concrete, the tunnel height H of this fish pass main body 4 is 4.75 meters, and the width of base plate 4.3 is 2.5 meters.In fish pass main body 4, arranging a contraction section 9 every 3 meters, wherein long constriction plate 9.1 is of a size of wide 1.4 meters, high 2.7 meters, thick 0.5 meter；Short constriction plate 9.2 is of a size of wide 0.4 meter, lower wide 0.8 meter, high 2.7 meters, thick 0.5 meter.It was fish perps 11 between long constriction plate 9.1 and short constriction plate 9.2.Being inlaid with, in the lower section crossing fish perps 11, the cobble 10 that thickness is 0.2 meter, fish perps seam 11 is of a size of wide 0.7 meter, lower wide 0.33 meter, high 2.5 meters.
In tunnel in fish pass main body 4, respectively arrange one group of luminaire 13 in the surface of the surface of each contraction section 9 and each room, fish pass pond 12.Concrete, one group of luminaire 13 bulb containing 3～10 equidistant arrangement, often group bulb is arranged on the same cross section in the middle part of vault 4.1 or room, fish pass pond 12.Described luminaire 13 select can the bulb of simulating nature light, after switching on power, it is possible to the waters in fish pass main body 4 is illuminated, in order to straddling fish stocks are traced back.
The part inlay being not provided with contraction section 9 in fish pass main body 4 on the two side 4.2 of tunnel and base plate 4.3 has cobble 10.The top of cobble 10 is exposed, and imitates the environment on natural river course and riverbank.And the illumination system, device 13 arranged on vault 4.1 can simulating nature light.Under the environment on this kind of similar natural riverbank, closer to the environment on natural riverbank in fish pass main body 4, this shoal of fish allowing for migration can more adapt to its environment in trip in described fish pass main body 4.
As it is shown in figure 1, the fishway exit section 5 of fish pass main body 4 upstream side is near upper river side, it is arranged in upper pond 15.The fishway exit 7 that the distalmost end of described fishway exit section 5 upstream side is.The base plate of this fishway exit 7 is arranged on below the water surface curve of upper pond 15.Between described fishway exit 7 and fish pass main body 4, namely in fishway exit section 5, port strobe 6 is set out.
Described fish pass import bulkhead gate 2 and go out port strobe 6 and all can be turned on and off.When fishway exit gate 6 is closed, upstream current are not passed through this fish pass main body 4, and the migration shoal of fish in downstream also cannot utilize fish pass to date back upper pond 15.
When assuming that the depth of water that water body in upper pond 15 formed in the imitative nature fish pass of tunnel formula is within the scope of 1.5～2.5m, current can nothing serious flows through in the imitative nature fish pass of tunnel formula described in the utility model and flow in downstream river 14, then water flow process is as follows.
When fish pass import bulkhead gate 2 is with when going out port strobe 6 all in opening, the water body of upper pond 15 enters fishway exit 7 and goes out port strobe 6 by what open, flows to fishway exit section 5, subsequently flows in fish pass main body 4.In room, fish pass pond 12 in fish pass main body 4, when current enter this room 12, fish pass pond, water is formed and hinders by long constriction plate 9.1 and short constriction plate 9.2, forces current through fish perps 11, and then current flowed out fish perps 11 and flow to next room, fish pass pond 12.Thus, contraction section 9 eliminates the water energy formed by 12, room, the superior and the subordinate's fish pass pond drop, it is ensured that the imitative nature fish pass water flow inside flow velocity of tunnel formula is all the time within the suitable flow rate scope determined by mistake fish object Burden-Swimming Ability of KM and ecological habit.
Same, current pass through each room, fish pass pond 12, until current finally flow into fish pass inducer 3 after flowing through room, all of fish pass pond 12, flow out fish pass import 1 by the fish pass import bulkhead gate 2 opened.Current fish pass import 1 place and near underwater bed 14 waters in form attracting current, finally these attracting current fade away remittance lower reache.
Assume to there is a need to the dam migration shoal of fish to upper pond 15 in the waters, downstream of the imitative nature fish pass of tunnel formula described in the utility model, this shoal of fish has the ability of backtracking, and can perceive attracting current and find fish pass import 1, then the mistake fish principle of the imitative nature fish pass of this utility model tunnel formula is as follows.
After the shoal of fish experiences attracting current on underwater bed 14, entering from fish pass import 1, by the fish pass import bulkhead gate 2 opened, trip, through fish pass inducer 3, is swum in fish pass main body 4.The shoal of fish is swum in room, fish pass pond 12 subsequently, and owing to the long constriction plate 9.1 arranged in this room, fish pass pond 12 and short constriction plate 9.2 hinder the shoal of fish of migration, the shoal of fish is swum into room, upper level fish pass pond 12 only by crossing fish perps 11.
In fish pass main body 4, owing to flow rate of water flow controls to cross within the scope of perception flow velocity and the limit velocity of fish object in target, habit according to the migration shoal of fish, the shoal of fish can sail against the current trip through each room, fish pass pond 12, and the shoal of fish can be taken a quick nap in fish pass rest pond, after antisecosis, continue trip to room, the preceding paragraph fish pass pond 12.In fish pass main body 4, long constriction plate 9.1 and short constriction plate 9.2 relative spacing are arranged, make the shoal of fish swim with the path of " S " type and cross fish perps 11 through each.Having cobble 10 and illuminator 13 in fish pass main body 4, in wet environment, in fish pass main body 4, president has the plants such as moss, has well imitated the natural environment on riverbank, and the shoal of fish is easier to the process of its migration in familiar environment.In the natural surroundings that fish pass main body 4 is imitated, the shoal of fish is swum behind last room, fish pass pond 12, finally swims into fishway exit section 5, goes out port strobe 6 by what open, swim out of fishway exit 7, swim into upper pond 15.
The imitative nature fish pass of tunnel formula described in the utility model can substitute tradition fish pass open cut technique, it is provided that a kind of brand-new fish pass mentality of designing, fish pass main body 4 is arranged on inside massif.This structure is particularly well-suited to the landform that dam site riverbed is narrow, massif height in two sides is steep；And massif destructiveness is little, it is ensured that the living environment of two sides terrestrial organism, it is possible to protect original ecological environment to greatest extent.Traditional approach open cut fish pass needs profoundly to excavate massif, and fish pass both sides can form high steep excavation slope, has not only broken up original ecological environment, and the design difficulty of its slope reinforcement supporting is big, and construction requirement technology is high, involves great expense.And the imitative nature fish pass of tunnel formula designed by this utility model compares tradition fish pass, not only protecting original ecological environment, and difficulty of designing and constructing is low, quantities is little, cost relative moderate.In fish pass main body 4 described in the utility model, the energy dissipating effect of long constriction plate 9.1 and short constriction plate 9.2, makes flow rate of water flow control to cross within the scope of perception flow velocity and the limit velocity of fish object in target, it is possible to make the shoal of fish of migration swim across fish pass main body 4 smoothly, walk around dam body, complete migration.In fish pass main body 4 described in the utility model, it is inlaid with cobble 10, it is provided with luminaire 13, described fish pass main body 4 is made well to have imitated the natural environment on natural riverbank, the shoal of fish that can allow migration adapts to environment around, swims across fish pass smoothly for the shoal of fish of migration and further provides favourable condition.
Other unspecified part is prior art.
Claims (9)
1. the imitative nature fish pass of tunnel formula, underwater bed (14) and upper pond (15) waters is connected by fish pass main body (4), it is characterised in that: described fish pass main body (4) is arranged on inside the massif on Power Plant (8) side；Fish pass import (1) is arranged in the underwater bed (14) of Power Plant (8)；Fishway exit (7) is arranged in the upper pond (15) of Power Plant (8)；The interior depth of water of described fish pass main body (4) is h；
Described fish pass main body (4) is by being positioned at the sidewall (4.2) of both sides, being positioned at the base plate (4.3) of bottom and be positioned at the vault (4.1) at top and form；It is provided with multiple contraction section (9) in described fish pass main body (4) and fish pass main body (4) is spaced apart room, multiple fish pass pond (12)；
Fish perps (11) of crossing on described each contraction section (9) connects room, adjacent two fish pass pond (12).
2. the imitative nature fish pass of tunnel formula according to claim 1, it is characterized in that: the upstream side of described fish pass main body (4) is connected to fishway exit section (5), the distalmost end at described fishway exit section (5) upstream side arranges fishway exit (7)；It is provided with out port strobe (6) in described fishway exit section (5)；
The downstream of described fish pass main body (4) is connected to fish pass inducer (3), distalmost end in described fish pass inducer (3) downstream arranges fish pass import (1), is provided with fish pass import bulkhead gate (2) in described fish pass inducer (3).
3. the imitative nature fish pass of tunnel formula according to claim 1, it is characterised in that: each contraction section (9) is made up of a long constriction plate (9.1) and a short constriction plate (9.2)；Described long constriction plate (9.1) in described same contraction section (9) and on the vertical same vertical section being oppositely disposed in described fish pass main body (4) of described short constriction plate (9.2)；It was fish perps (11) between long constriction plate (9.1) and short constriction plate (9.2) in same contraction section (9)；A long constriction plate (9.1) and short constriction plate (9.2) adjacent spaces on one sidewall (4.2) of described fish pass main body (4) are arranged.
4. the imitative nature fish pass of tunnel formula according to claim 3, it is characterised in that: described long constriction plate (9.1) is rectangular slab block structure, and described short constriction plate (9.2) is at the up-narrow and down-wide trapezoidal plate block structure of horizontal water (flow) direction；The thickness, highly all identical in vertical direction on Parallel to the flow direction of described long constriction plate (9.1) and described short constriction plate (9.2).
5. the imitative nature fish pass of tunnel formula according to claim 3, it is characterised in that: the thickness of described long constriction plate (9.1) and short constriction plate (9.2) is 0.1～0.3m, is highly not less than the depth of water.
6. the imitative nature fish pass of tunnel formula according to claim 1, it is characterised in that: the vault (4.1) of described fish pass main body (4) connects the top of two sidewalls (4.2) respectively for arc-shaped structure both sides.
7. the imitative nature fish pass of tunnel formula according to claim 1, it is characterised in that: the height H of described fish pass main body (4) is in fish pass main body (4) 1.1～1.3 times of the depth of water.
8. the imitative nature fish pass of tunnel formula according to claim 1, it is characterized in that: the width W of room, described pond (12) is more than 2 times of the longest the fish eyes standard type length, and the length L of room, described pond (12) takes 2.5～3 times of the longest the fish eyes standard type length.
9. the imitative nature fish pass of tunnel formula according to any one of claim 1 to 8, it is characterized in that: described vault (4.1) is provided with and organizes luminaire (13) more, the surface in room, described each pond (12) is both provided with one group of luminaire (13), and the surface of described each contraction section (9) is both provided with one group of luminaire (13)；The position being not provided with contraction section (9) on described base plate (4.3) and two sidewalls (4.2) is all inlaid with cobble (10), and the height of the cobble (10) on said two sidewall (4.2) is consistent with depth of water h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521110212.1U CN205369184U (en) | 2015-12-25 | 2015-12-25 | Nature fishway is imitated to tunnel formula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521110212.1U CN205369184U (en) | 2015-12-25 | 2015-12-25 | Nature fishway is imitated to tunnel formula |
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| CN205369184U true CN205369184U (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464058A (en) * | 2015-12-25 | 2016-04-06 | 长江勘测规划设计研究有限责任公司 | Tunnel type artificially-natural fishway |
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2015
- 2015-12-25 CN CN201521110212.1U patent/CN205369184U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464058A (en) * | 2015-12-25 | 2016-04-06 | 长江勘测规划设计研究有限责任公司 | Tunnel type artificially-natural fishway |
| CN105464058B (en) * | 2015-12-25 | 2018-01-19 | 长江勘测规划设计研究有限责任公司 | Tunnel formula imitates nature fish pass |
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