CN106013010A - Concrete baffle for improving fish passing effect of culvert type fishway and application method of concrete baffle - Google Patents
Concrete baffle for improving fish passing effect of culvert type fishway and application method of concrete baffle Download PDFInfo
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- CN106013010A CN106013010A CN201610343540.9A CN201610343540A CN106013010A CN 106013010 A CN106013010 A CN 106013010A CN 201610343540 A CN201610343540 A CN 201610343540A CN 106013010 A CN106013010 A CN 106013010A
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- culvert
- baffle plate
- fish
- concrete baffle
- concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/08—Fish passes or other means providing for migration of fish; Passages for rafts or boats
-
- 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
- Y02A40/60—Ecological corridors or buffer zones
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Artificial Fish Reefs (AREA)
Abstract
The invention discloses a concrete baffle for improving the fish passing effect of a culvert type fishway. One side of a first baffle body and one side of a second baffle body are connected to form the integral baffle. The height of the first baffle body is larger than that of the second baffle body. No more than five sand discharging holes are formed in the bottom of the first baffle body. An overflow hole is formed in the top of the second baffle body. The height and the maximum width of the overflow hole are both larger than the body height and width of fishes in the fishway. The height of the first baffle body is 20%-30% of the height of a culvert. According to the concrete baffle for improving the fish passing effect of the culvert type fishway and an application method of the concrete baffle, the problem that hydraulic power factors in the culvert cannot meet the fish passing condition can be solved, the purpose of optimizing the hydraulic power conditions in the culvert is achieved, and installing is convenient.
Description
Technical field
The present invention relates to Fish ecological protection field, a kind of culvert-type fish pass that improves crosses concrete baffle plate and the using method thereof of fish effect.
Background technology
Current domestic built highway formula culvert or bridge culvert, mainly consider whether to meet drainage requirement during functional design, does not consider that culvert is as hydraulics required during fish passage excessively.And the small fishes in streams has migration demand mostly, when the parameters such as the such as flow velocity of the hydraulic factors within culvert cannot meet hydraulics required when Fish successfully pass, Fish just cannot successfully be traced back or descending, if the migration path of Fish is blocked, the hydrobiological ecological environment in small-sized streams can be had a strong impact on.
Summary of the invention
The technical problem to be solved is to provide a kind of culvert-type fish pass that improves and crosses concrete baffle plate and the using method thereof of fish effect, in can solving culvert, hydraulic factors cannot meet the Fish problem by condition, reach to optimize the purpose of hydraulics in culvert, easy for installation.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of culvert-type fish pass that improves crosses the concrete baffle plate of fish effect, first baffle plate is connected one overall baffle plate of formation with second baffle side, the height of the first baffle plate is higher than the height of second baffle, first baffle bottom offers the sand discharge hole of not more than five, second baffle top offers a spout hole, the height of spout hole and Breadth Maximum are all higher than height and the width of fish pass Mesichthyes, and the height of the first baffle plate is the 20-30% of culvert height.
Sand discharge hole is semi-circular hole, and spout hole is tri-angle-holed.
When the quantity in sand discharge hole is one, it is opened near the first baffle plate outside.
When the quantity in sand discharge hole is two, it is opened in respectively at the first baffle plate both sides.
When the quantity in sand discharge hole is three, it is opened in respectively near the first baffle plate both sides and middle.
A kind of above-mentioned concrete baffle plate is utilized to realize the method that fish crossed by culvert, the method is: be evenly arranged many block concretes baffle plate along culvert trend every a segment distance inside culvert, the quantity in the sand discharge hole being arranged in each block concrete baffle plate within same culvert is identical with position, angle between adjacent two block concrete baffle plates is 0 degree, the hydraulic factors making the pond formed between every two block concrete baffle plates indoor reached fish requirement, and successfully realize culvert crosses fish channel function.
Utilize above-mentioned concrete baffle plate realize culvert and cross the another kind of optimization method of fish be: inside culvert, be evenly arranged many block concretes baffle plate along culvert trend every a segment distance, the quantity in the sand discharge hole being arranged in each block concrete baffle plate within same culvert is identical with position, angle between adjacent two block concrete baffle plates is 180 degree, the hydraulic factors making the pond formed between every two block concrete baffle plates indoor reached fish requirement, and successfully realize culvert crosses fish channel function.
Between every two pieces of adjacent concrete baffle plates 0.75-1.25 times that distance is culvert width in culvert.
A kind of culvert-type fish pass that improves that the present invention provides crosses concrete baffle plate and the using method thereof of fish effect, first baffle plate different by height and the design of second baffle, can adapt to the culvert drain function in wet season and dry season respectively；Sand discharge hole can facilitate small fishes or other aquatic animals to pass through while silt of draining；Spout hole makes the Fish in fish pass can be traced back by spout hole；By the water blockage effect of concrete baffle plate, while improving indoor, pond water level, it is ensured that the flow velocity of current not less than the sensing flow velocity of Fish of interest, reaches to optimize the purpose of hydraulics in culvert；By arranging multiple concrete baffle plate in culvert, the layout angle making adjacent concrete baffle plate is 0 degree or 180 degree, homonymy vertical seam type fish channel or the flow field of heteropleural vertical seam type fish channel can be manufactured similarly to, indoor, single pond water level in culvert can be promoted to original 2～3 times；In can solving culvert, the hydraulic factors such as flow-shape and flow velocity cannot meet the Fish problem by condition, if flow rate of water flow is relatively low in culvert, use the layout of many block concretes baffle plate, average current velocity indoor for pond can be improved 30～50%, thus culvert interior flow field is adjusted and improves, optimize culvert-type and cross the hydraulics of fish channel interior, that improves culvert-type fish pass crosses fish effect, and the version of concrete baffle plate is changeable, arrangement is flexible, it is simple to in-site installation.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of concrete baffle plate embodiment one of the present invention；
Fig. 2 is the front view of concrete baffle plate embodiment one of the present invention；
Fig. 3 is that the concrete baffle plate of embodiment one is applied to the schematic diagram of culvert by the present invention, and the angle between the most adjacent two block concrete baffle plates is 0 degree；
Fig. 4 is that the concrete baffle plate of embodiment one is applied to the schematic diagram of culvert by the present invention, and the angle between the most adjacent two block concrete baffle plates is 180 degree；
Fig. 5 is the structural representation of concrete baffle plate embodiment two of the present invention；
Fig. 6 is the front view of concrete baffle plate embodiment two of the present invention；
Fig. 7 is that the concrete baffle plate of embodiment two is applied to the schematic diagram of culvert by the present invention, and the angle between the most adjacent two block concrete baffle plates is 0 degree；
Fig. 8 is that the concrete baffle plate of embodiment two is applied to the schematic diagram of culvert by the present invention, and the angle between the most adjacent two block concrete baffle plates is 180 degree；
Fig. 9 is the structural representation of concrete baffle plate embodiment three of the present invention；
Figure 10 is the front view of concrete baffle plate embodiment three of the present invention；
Figure 11 is that the concrete baffle plate of embodiment three is applied to the schematic diagram of culvert by the present invention, and the angle between the most adjacent two block concrete baffle plates is 0 degree；
Figure 12 is that the concrete baffle plate of embodiment three is applied to the schematic diagram of culvert by the present invention, and the angle between the most adjacent two block concrete baffle plates is 180 degree；
Figure 13 is that the concrete baffle plate of embodiment one is applied to the schematic diagram of anti-natural fish pass by the present invention, and the angle between the most adjacent two block concrete baffle plates is 0 degree.
Detailed description of the invention
Embodiment one
As depicted in figs. 1 and 2, a kind of culvert-type fish pass that improves crosses the concrete baffle plate of fish effect, first baffle plate 1 is connected one overall baffle plate of formation with second baffle 2 side, the height of the first baffle plate 1 is higher than the height of second baffle 2, a sand discharge hole 3 is offered bottom first baffle plate 1, sand discharge hole 3 is opened near the first baffle plate 1 outside, second baffle 2 top offers a spout hole 4, the height of spout hole 4 and Breadth Maximum are all higher than height and the width of fish pass Mesichthyes, and the height of the first baffle plate 1 is the 20-30% of culvert 5 height.
Sand discharge hole 3 is the semi-circular hole of a diameter of 10-15 centimetre, and small fishes or other aquatic animals can be facilitated while silt of draining to pass through；
It is tri-angle-holed for being opened in the spout hole 4 in the middle of second baffle 2, and the drift angle of spout hole 4 is 90 degree of-120 degree so that the Fish in culvert-type fish pass can be traced back by spout hole 4.
The length of the first baffle plate 1 and second baffle 2 is than for 5:3.
As shown in Figure 3, above-mentioned concrete baffle plate is applied to the method for culvert-type fish pass: move towards to be evenly arranged every a segment distance concrete baffle plate of polylith embodiment one in culvert 5 inside along culvert 5, angle between adjacent two block concrete baffle plates is 0 degree, fluidised form in room, the pond 5-1 formed between every two block concrete baffle plates and between room, pond is similar with homonymy vertical seam type fish channel with velocity flow profile, i.e. current are moving near culvert right side wall surface current, spout hole and sand discharge hole are all arranged in the same side, current are indoor in pond to flow in anti-S type, ensure that concordance and the continuity of current, also shorten Fish traces back distance simultaneously, the hydraulic factors such as the flow-shape in room, the pond 5-1 formed between every two block concrete baffle plates 5 and flow velocity are made to reach fish requirement, successfully realize culvert crosses fish channel function.
nullAs shown in Figure 4，Above-mentioned concrete baffle plate is applied to the another kind of method of culvert-type fish pass: move towards to be evenly arranged every a segment distance concrete baffle plate of polylith embodiment one in culvert 5 inside along culvert 5，Angle between adjacent two block concrete baffle plates is 180 degree，Fluidised form and velocity flow profile situation in room, the pond 5-1 formed between every two block concrete baffle plates and between the 5-1 of room, pond are similar to the interior flow field of heteropleural vertical seam type fish channel，Current flow in anti-S type in the 5-1 of room, pond，Velocity flow profile in the 5-1 of room, pond is the most uniform，Spout hole 4 and sand discharge hole 3 are arranged in the both sides of concrete baffle plate，Mainstream speed distribution characteristics is obvious，Induction Fish are conducive to successfully to trace back，The hydraulic factors such as the flow-shape in room, the pond 5-1 formed between every two block concrete baffle plates 5 and flow velocity are made to reach fish requirement，Successfully realize culvert crosses fish channel function.
Between every two pieces of adjacent concrete baffle plates 0.75-1.25 times that distance is culvert 5 width in culvert 5, preferably 0.75 times.
Embodiment two
As shown in Figure 5 and Figure 6, a kind of culvert-type fish pass that improves crosses the concrete baffle plate of fish effect, first baffle plate 1 is connected one overall baffle plate of formation with second baffle 2 side, the height of the first baffle plate 1 is higher than the height of second baffle 2, two sand discharge holes 3 are offered bottom first baffle plate 1, two sand discharge holes 3 are opened in respectively at the first baffle plate 1 both sides, second baffle 2 top offers a spout hole 4, the height of spout hole 4 and Breadth Maximum are all higher than height and the width of fish pass Mesichthyes, and the height of the first baffle plate 1 is the 20-30% of culvert 5 height.
Sand discharge hole 3 is the semi-circular hole of a diameter of 10-15 centimetre, and small fishes or other aquatic animals can be facilitated while silt of draining to pass through；
It is tri-angle-holed for being opened in the spout hole 4 in the middle of second baffle 2, and the drift angle of spout hole 4 is 90 degree of-120 degree so that the Fish in culvert-type fish pass can be traced back by spout hole 4.
The length of the first baffle plate 1 and second baffle 2 is than for 5:3.
As shown in Figure 7, above-mentioned concrete baffle plate is applied to the method for culvert-type fish pass: move towards to be evenly arranged every a segment distance concrete baffle plate of polylith embodiment two in culvert 5 inside along culvert 5, angle between adjacent two block concrete baffle plates is 0 degree, fluidised form in room, the pond 5-1 formed between every two block concrete baffle plates and between room, pond is similar with homonymy vertical seam type fish channel with velocity flow profile, i.e. current are moving near culvert right side wall surface current, spout hole and sand discharge hole are all arranged in the same side, current are indoor in pond to flow in anti-S type, ensure that concordance and the continuity of current, also shorten Fish traces back distance simultaneously, the hydraulic factors such as the flow-shape in room, the pond 5-1 formed between every two block concrete baffle plates 5 and flow velocity are made to reach fish requirement, successfully realize culvert crosses fish channel function.
nullAs shown in Figure 8，Above-mentioned concrete baffle plate is applied to the another kind of method of culvert-type fish pass: move towards to be evenly arranged every a segment distance concrete baffle plate of polylith embodiment one in culvert 5 inside along culvert 5，Angle between adjacent two block concrete baffle plates is 180 degree，Fluidised form and velocity flow profile situation in room, the pond 5-1 formed between every two block concrete baffle plates and between the 5-1 of room, pond are similar to the interior flow field of heteropleural vertical seam type fish channel，Current flow in anti-S type in the 5-1 of room, pond，Velocity flow profile in the 5-1 of room, pond is the most uniform，Spout hole 4 and sand discharge hole 3 are staggered，Preferable current are had to guide effect for whole culvert and discharging smoothly of pond chamber interior silt，Mainstream speed distribution characteristics is obvious，Induction Fish are conducive to successfully to trace back，The hydraulic factors such as the flow-shape in room, the pond 5-1 formed between every two block concrete baffle plates 5 and flow velocity are made to reach fish requirement，Successfully realize culvert crosses fish channel function.
When the water quality of upland water is more muddy, water body silt content is bigger, use two sand discharge holes can increase sand discharge amount, it is possible to effectively to prevent the silting phenomenon in the room 5-1 of culvert pond.
Between every two pieces of adjacent concrete baffle plates 0.75-1.25 times that distance is culvert 5 width in culvert 5, preferably 0.75 times.
Embodiment three
As shown in Figure 9 and Figure 10, a kind of culvert-type fish pass that improves crosses the concrete baffle plate of fish effect, first baffle plate 1 is connected one overall baffle plate of formation with second baffle 2 side, the height of the first baffle plate 1 is higher than the height of second baffle 2, three sand discharge holes 3 are offered bottom first baffle plate 1, three sand discharge holes 3 are opened near the first baffle plate 1 both sides and middle respectively, second baffle 2 top offers a spout hole 4, the height of spout hole 4 and Breadth Maximum are all higher than height and the width of fish pass Mesichthyes, and the height of the first baffle plate 1 is the 20-30% of culvert 5 height.
Sand discharge hole 3 is the semi-circular hole of a diameter of 10-15 centimetre, and small fishes or other aquatic animals can be facilitated while silt of draining to pass through；
It is tri-angle-holed for being opened in the spout hole 4 in the middle of second baffle 2, and the drift angle of spout hole 4 is 90 degree of-120 degree so that the Fish in culvert-type fish pass can be traced back by spout hole 4.
The length of the first baffle plate 1 and second baffle 2 is than for 5:3.
As shown in figure 11, above-mentioned concrete baffle plate is applied to the method for culvert-type fish pass: move towards to be evenly arranged every a segment distance concrete baffle plate of polylith embodiment three in culvert 5 inside along culvert 5, angle between adjacent two block concrete baffle plates is 0 degree, fluidised form in room, the pond 5-1 formed between every two block concrete baffle plates and between room, pond is similar with homonymy vertical seam type fish channel with velocity flow profile, i.e. current are moving near culvert right side wall surface current, spout hole and sand discharge hole are all arranged in the same side, current are indoor in pond to flow in anti-S type, ensure that concordance and the continuity of current, also shorten Fish traces back distance simultaneously, the hydraulic factors such as the flow-shape in room, the pond 5-1 formed between every two block concrete baffle plates 5 and flow velocity are made to reach fish requirement, successfully realize culvert crosses fish channel function.
nullAs shown in figure 12，Above-mentioned concrete baffle plate is applied to the another kind of method of culvert-type fish pass: move towards to be evenly arranged every a segment distance concrete baffle plate of polylith embodiment one in culvert 5 inside along culvert 5，Angle between adjacent two block concrete baffle plates is 180 degree，Fluidised form and velocity flow profile situation in room, the pond 5-1 formed between every two block concrete baffle plates and between the 5-1 of room, pond are similar to the interior flow field of heteropleural vertical seam type fish channel，Current flow in anti-S type in the 5-1 of room, pond，Velocity flow profile in the 5-1 of room, pond is the most uniform，Spout hole 4 and sand discharge hole 3 are staggered，The passage making small fishes or aquatic animal is heteropleural arrangement，The water-flow equation of indoor, pond is evenly，Preferable current are had to guide effect for whole culvert and discharging smoothly of pond chamber interior silt，Mainstream speed distribution characteristics is obvious，Induction Fish are conducive to successfully to trace back，The hydraulic factors such as the flow-shape in room, the pond 5-1 formed between every two block concrete baffle plates 5 and flow velocity are made to reach fish requirement，Successfully realize culvert crosses fish channel function.
When the water quality of upland water is more muddy, water body silt content is bigger, use three sand discharge holes can increase sand discharge amount, can effectively prevent the silting phenomenon in the room 5-1 of culvert pond, simultaneously the most also for small fishes or aquatic animal by providing multiple optional passage, improve culvert-type fish pass to a certain extent crosses fish effect.
Between every two pieces of adjacent concrete baffle plates 0.75-1.25 times that distance is culvert 5 width in culvert 5, preferably 0.75 times.
Embodiment four
The concrete baffle plate of the present invention is except crossing in fish passage for culvert-type, it may also be used for the tradition fish pass structures such as imitative nature fish pass, vertical seam type fish channel.
As shown in figure 13, the concrete baffle plate of embodiment one is applied in anti-natural fish pass, the side of the first baffle plate 1 and second baffle 2 carries out cast in situs with the concrete that is connected by of the bulk enrockment of fish pass both sides or bunding, the material such as cobble or bulk gravel can be laid in the bottom of fish pass, so it is possible not only to make fish pass flow condition access expansion river, tracing back of the roughness of fish pass, beneficially Fish can also be reduced.
First baffle plate 1 is the concrete slab that thickness is identical with second baffle 2, use concreting to realize slitless connection and form an overall baffle plate, described concrete baffle plate can be installed with cast in situs, it is installed to inside culvert by setscrew after may be alternatively configured finished product, depending on concrete mounting means can be according to the physical condition of job site.
Embodiment five
A kind of culvert-type fish pass that improves crosses the concrete baffle plate of fish effect, first baffle plate 1 is connected one overall baffle plate of formation with second baffle 2 side, the height of the first baffle plate 1 is higher than the height of second baffle 2, four or five sand discharge holes 3 are offered bottom first baffle plate 1, second baffle 2 top offers a spout hole 4, the height of spout hole 4 and Breadth Maximum are all higher than height and the width of fish pass Mesichthyes, and the height of the first baffle plate 1 is the 20-30% of culvert 5 height.
Sand discharge hole 3 is the semi-circular hole of a diameter of 10-15 centimetre, and small fishes or other aquatic animals can be facilitated while silt of draining to pass through；
It is tri-angle-holed for being opened in the spout hole 4 in the middle of second baffle 2, and the drift angle of spout hole 4 is 90 degree of-120 degree so that the Fish in culvert-type fish pass can be traced back by spout hole 4.
The length of the first baffle plate 1 and second baffle 2 is than for 5:3.
Claims (9)
1. one kind is improved culvert-type fish pass and crosses the concrete baffle plate of fish effect, it is characterized in that: the first baffle plate (1) is connected one overall baffle plate of formation with second baffle (2) side, the height of the first baffle plate (1) is higher than the height of second baffle (2), first baffle plate (1) bottom offers the sand discharge hole (3) of not more than five, second baffle (2) top offers a spout hole (4), the height of spout hole (4) and Breadth Maximum are all higher than height and the width of fish pass Mesichthyes, and the height of the first baffle plate (1) is the 20-30% of culvert (5) height.
A kind of culvert-type fish pass that improves the most according to claim 1 crosses the concrete baffle plate of fish effect, it is characterised in that: sand discharge hole (3) are semi-circular hole, and spout hole (4) is tri-angle-holed.
A kind of culvert-type fish pass that improves the most according to claim 1 crosses the concrete baffle plate of fish effect, it is characterised in that: when the quantity of sand discharge hole (3) is one, it is opened near the first baffle plate (1) outside.
A kind of culvert-type fish pass that improves the most according to claim 1 crosses the concrete baffle plate of fish effect, it is characterised in that: when the quantity of sand discharge hole (3) is two, it is opened in respectively at the first baffle plate (1) both sides.
A kind of culvert-type fish pass that improves the most according to claim 1 crosses the concrete baffle plate of fish effect, it is characterised in that: when the quantity of sand discharge hole (3) is three, it is opened in respectively near the first baffle plate (1) both sides and middle.
6. the concrete baffle plate that a kind utilizes according to any one of the claims 1-5 realizes the method that fish crossed by culvert, it is characterized in that the method is: be evenly arranged many block concrete baffle plate along culvert (5) trend every a segment distance in culvert (5) inside, the quantity in the sand discharge hole being arranged in the internal each block concrete baffle plate of same culvert (5) is identical with position, angle between adjacent two block concrete baffle plates is 0 degree, making the hydraulic factors in the room, pond (5-1) formed between every two block concrete baffle plates reach fish requirement, successfully realize culvert crosses fish channel function.
The most according to claim 6 concrete baffle plate is utilized to realize the method that fish crossed by culvert, it is characterised in that: between every two pieces of adjacent concrete baffle plates 0.75-1.25 times that distance is culvert (5) width in culvert (5).
8. the concrete baffle plate that a kind utilizes according to any one of the claims 1-5 realizes the method that fish crossed by culvert, it is characterized in that the method is: be evenly arranged many block concrete baffle plate along culvert (5) trend every a segment distance in culvert (5) inside, the quantity in the sand discharge hole being arranged in the internal each block concrete baffle plate of same culvert (5) is identical with position, angle between adjacent two block concrete baffle plates is 180 degree, making the hydraulic factors in the room, pond (5-1) formed between every two block concrete baffle plates reach fish requirement, successfully realize culvert crosses fish channel function.
The most according to claim 8 concrete baffle plate is utilized to realize the method that fish crossed by culvert, it is characterised in that: between every two pieces of adjacent concrete baffle plates 0.75-1.25 times that distance is culvert (5) width in culvert (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343540.9A CN106013010A (en) | 2016-05-23 | 2016-05-23 | Concrete baffle for improving fish passing effect of culvert type fishway and application method of concrete baffle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343540.9A CN106013010A (en) | 2016-05-23 | 2016-05-23 | Concrete baffle for improving fish passing effect of culvert type fishway and application method of concrete baffle |
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| CN106013010A true CN106013010A (en) | 2016-10-12 |
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| CN201610343540.9A Pending CN106013010A (en) | 2016-05-23 | 2016-05-23 | Concrete baffle for improving fish passing effect of culvert type fishway and application method of concrete baffle |
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|---|---|---|---|---|
| JPH11315528A (en) * | 1998-05-01 | 1999-11-16 | Hokuetsu:Kk | Channel type fish way and block therefor |
| KR20060093901A (en) * | 2005-02-23 | 2006-08-28 | 이근희 | Method for constructing pool-type and waterway-type fish passage using i-shaped fish passage blocks having skip-flowing part and non-skipped flowing part |
| CN202157314U (en) * | 2011-07-12 | 2012-03-07 | 同济大学 | Arch-shaped clapboard for ecological fishway |
| KR101156309B1 (en) * | 2011-11-30 | 2012-06-13 | 강원대학교산학협력단 | Fish-way which is easily manageable and is capable of coping with water level |
| CN202745020U (en) * | 2012-07-27 | 2013-02-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Water-pervious fish pass used for migration fish dam-passing protection |
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- 2016-05-23 CN CN201610343540.9A patent/CN106013010A/en active Pending
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|---|---|---|---|---|
| JPH11315528A (en) * | 1998-05-01 | 1999-11-16 | Hokuetsu:Kk | Channel type fish way and block therefor |
| KR20060093901A (en) * | 2005-02-23 | 2006-08-28 | 이근희 | Method for constructing pool-type and waterway-type fish passage using i-shaped fish passage blocks having skip-flowing part and non-skipped flowing part |
| CN202157314U (en) * | 2011-07-12 | 2012-03-07 | 同济大学 | Arch-shaped clapboard for ecological fishway |
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| CN202745020U (en) * | 2012-07-27 | 2013-02-20 | 水利部交通运输部国家能源局南京水利科学研究院 | Water-pervious fish pass used for migration fish dam-passing protection |
| CN103806419A (en) * | 2014-02-19 | 2014-05-21 | 中国水利水电科学研究院 | Rectification pool type fishway and flow state control method |
| CN205088649U (en) * | 2015-11-13 | 2016-03-16 | 中国电建集团成都勘测设计研究院有限公司 | Single export fishway structure of down --hole formula |
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| 朱党生: "《水利水电工程环境影响评价》", 31 March 2006 * |
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Application publication date: 20161012 |