CN113136845B - Migration type ecological fishway and construction method - Google Patents
Migration type ecological fishway and construction method Download PDFInfo
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- CN113136845B CN113136845B CN202110465602.4A CN202110465602A CN113136845B CN 113136845 B CN113136845 B CN 113136845B CN 202110465602 A CN202110465602 A CN 202110465602A CN 113136845 B CN113136845 B CN 113136845B
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 230000005012 migration Effects 0.000 title claims abstract description 23
- 238000013508 migration Methods 0.000 title claims abstract description 23
- 241000251468 Actinopterygii Species 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 239000011368 organic material Substances 0.000 claims abstract description 4
- 239000004575 stone Substances 0.000 claims description 12
- 238000009395 breeding Methods 0.000 claims description 9
- 230000001488 breeding effect Effects 0.000 claims description 9
- 238000009415 formwork Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Classifications
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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
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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
- Y02A40/60—Ecological corridors or buffer zones
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention provides a migration type ecological fishway and a construction method thereof, comprising a fishway communicated with the upstream and the downstream of a dam body, wherein a spiral fishway with reciprocating bending is arranged at the downstream of the fishway, and the spiral fishway is used for reducing the gradient of the fishway. At least one side of the spiral fishway is provided with a flood beach, and the bottom of the flood beach is higher than the top of the spiral fishway. And a rest pool is arranged at the position with larger curvature of the spiral fishway, and the bottom of the rest pool is lower than or flush with the bottom of the spiral fishway. The construction method comprises the following steps: preparing a prefabricated wallboard, arranging a side die and a bottom die, arranging a flexible deformation layer on the upper surface of the bottom die, wherein the flexible deformation layer is an organic material which can be deformed locally under the gravity of pebbles and does not absorb water, arranging a layer of pebbles, wherein the particle size of the pebbles is 3-10 cm, pouring mortar, and solidifying the mortar to obtain the prefabricated wallboard; pouring the fishway side wall by taking the prefabricated wall plate as an inner mold of the fishway side wall; realizing the rapid construction of the fishway. The spiral fishway reduces the speed of water flow and improves the dam passing capability of fishes.
Description
Technical Field
The invention relates to the field of hydraulic building construction, in particular to a migration type ecological fishway and a construction method.
Background
In order to solve the technical problem of the influence of water conservancy facilities on fish ecology, a way of passing through a fishway is generally adopted at present to adapt to migration habit of fish. But for the water conservancy facilities with higher partial drop, for example, the drop exceeds 50 meters, the fish passing effect is obviously reduced. The existing fishway generally adopts an equal-width fishway, when the drop is large, the upward tracing fishway path is long, and the physical strength of partial fishes is insufficient to support the fishes to pass through the fishway. Chinese patent CN108729422a describes a high-low inlet, primary-secondary outlet vertical seam type ecological fishway, which adopts multiple inlet and multiple outlet schemes and a vertical seam type ecological fishway scheme, but the scheme is only applicable to medium-low head hydraulic engineering. CN108277784a describes a natural fishway suitable for fishes with different swimming capacities, and adopts a scheme of arranging pebbles in the fishway, so that the friction resistance of the outer wing wall of the fishway can be increased, and the flow speed of water flow can be slowed down; can protect fish from being damaged by accident. However, the construction of this scheme is very troublesome and the construction efficiency is extremely low.
Disclosure of Invention
The invention aims to provide a migration type ecological fishway which can improve fish passing effect. In a preferred embodiment, different water conditions can be handled.
The invention aims to provide a construction method of the migration type ecological fishway, which can solve the problem of low pebble construction efficiency of the protruding surface arranged in the fishway.
In order to solve the technical problems, the invention adopts the following technical scheme: the migration type ecological fishway comprises a fishway communicated with the upstream and the downstream of a dam body, wherein a spiral fishway with reciprocating bending is arranged at the downstream of the fishway, and the spiral fishway is used for reducing the gradient of the fishway.
In a preferred embodiment, a flood beach is provided on at least one side of the spiral fishway, the bottom of the flood beach being higher than the top of the spiral fishway.
In the preferred scheme, a rest pool is arranged at the position with larger curvature of the spiral fishway, and the bottom of the rest pool is lower than or flush with the bottom of the spiral fishway.
In the preferred scheme, the bottom of the spiral fishway is provided with a block stone, the block stone part protrudes out of the inner wall of the spiral fishway, and the particle size of the block stone is larger than 10cm.
In a preferred embodiment, a fish breeding station is also provided on one side of the spiral fishway for breeding fish and returning.
In the preferred scheme, a first fishway and a second fishway are respectively arranged at the positions of the fishway communicated with the dam body;
The first fishway is arranged along the axial direction, one end of the dam body passes through the dam body and is connected with the fish outlet fishway, the fish outlet fishway is arranged along the upstream slope of the dam body, and the first fishway is used for fish passing in the non-flood period;
The second fishway is arranged along the downstream slope surface and is directly communicated with the water channel of the dam body, and the second fishway is used for fish passing in flood season;
the first fishway is provided with a first fishway gate, and the water channel is provided with a second fishway gate.
In the preferred scheme, one end of the fish outlet fishway, which is close to the dam body, is provided with a first fish outlet, the other end of the fish outlet fishway is provided with a bending part, and two ends of the bending part are respectively provided with a second fish outlet and a third fish outlet.
In the preferred scheme, be equipped with the baffle of staggered arrangement at the inner wall of fishway, baffle one end is connected with one side inner wall of fishway, and the opposite side inner wall of the directional fishway of the other end, and the free end of baffle is equipped with the kink of upwards buckling, and the free end of a plurality of baffles is staggered arrangement each other.
In a preferred embodiment, prefabricated wall panels are provided on the side walls and bottom of the fishway, the surfaces of the prefabricated wall panels being provided with embedded pebbles, the pebbles protruding from the surfaces of the prefabricated wall panels.
The construction method of the migration type ecological fishway comprises the following steps:
S1, preparing a prefabricated wallboard, arranging a side die and a bottom die, arranging a flexible deformation layer on the upper surface of the bottom die, wherein the flexible deformation layer is an organic material which can be deformed locally under the gravity of pebbles and does not absorb water, arranging a layer of pebbles, wherein the particle size of the pebbles is 3-10 cm, pouring mortar, and solidifying the mortar to obtain the prefabricated wallboard;
s2, standing a formwork to pour the fishway bottom plate, and placing a prefabricated wallboard on the poured fishway bottom plate to serve as the upper surface of the fishway bottom plate;
S3, taking the prefabricated wall plate as an inner mold of the fishway side wall, and pouring the fishway side wall;
through the steps, quick construction of the migration type ecological fishway is realized.
According to the migration type ecological fishway and the construction method, the longitudinal slope ratio of the fishway is greatly reduced by adopting the structure of the spiral fishway, and is only 1/80 at the highest, and the longitudinal slope at the positions of the flood beach and the rest pool is 1/1361, so that the water flow speed is greatly reduced, and the dam passing capacity of fishes is greatly improved. By adopting the scheme, the hydraulic system can be used for hydraulic engineering with high water head. The set block stones can provide places for fish to temporarily inhabit. The structure of a plurality of fishways that set up can adapt to rivers seasonal backward flow and water level variation fall change. The structure of a plurality of fish outlets can further improve the adaptability to the water level change drop. The structure of the invention also has extremely high ornamental value. The fish proliferation station can be convenient to improve the population quantity of the rare fish in a manual intervention mode. The construction method of the invention greatly reduces the workload of manually splicing and building pebbles and greatly improves the construction efficiency of the fishway.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
Fig. 1 is a schematic top view of the present invention.
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1.
FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1.
Fig. 4 is a partial top view of a first fishway, a second fishway and a partially spiraled fishway of the invention.
Fig. 5 is a schematic cross-sectional view of a mold for casting prefabricated wall panels according to the present invention.
In the figure: dam 1, spiral fishway 2, stone 3, rest pond 4, flood 5, fish breeding station 6, fish inlet 7, first fishway 8, open channel 9, second fishway 10, second fishway gate 11, open channel gate 12, fish outlet 13, first outlet 131, second outlet 132, third outlet 133, fishway switch gate 14, first fishway gate 15, water channel 16, fishway 100, fishway side wall 101, steel bar 102, fishway bottom plate 103, prefabricated wallboard 104, pebble 105, baffle 106, kink 107, side form 108, bottom die 109, flexible deformation layer 110.
Detailed Description
Example 1:
As shown in fig. 1, a migration type ecological fishway comprises a fishway which is communicated with the upstream and the downstream of a dam body 1, wherein a spiral fishway 2 with reciprocating bending is arranged at the downstream of the fishway, and the spiral fishway 2 is used for reducing the gradient of the fishway. With the structure, the longitudinal slope ratio is not more than 1/80, and the fish passing effect is improved.
In a preferred embodiment, as shown in fig. 1 and 2, a flood beach 5 is provided on at least one side of the spiral fishway 2, and the bottom of the flood beach 5 is higher than the top of the spiral fishway 2. With this structure, the flow cross section is increased by widening the water surface, and the flow velocity is further retarded.
In the preferred embodiment, as shown in fig. 1, a rest pool 4 is arranged at a position with a large curvature of the spiral fishway 2, and the bottom of the rest pool 4 is lower than or flush with the bottom of the spiral fishway 2. From this structure, make this department form the backward flow structure, rivers are slower here, and the fish of being convenient for rest in rest pond 4.
In a preferred embodiment, as shown in fig. 2, a stone block 3 is provided at the bottom of the spiral fishway 2, and a portion of the stone block 3 protrudes from the inner wall of the spiral fishway 2. Preferably, the particle size of the block stone 3 is larger than 10cm, and the block stone with the particle size of 20-40 is usually selected, so that the embedded depth in the concrete is more than 1/2. With this structure, turbulence is generated to further reduce the flow rate of water, forming a rest area close to natural.
In the preferred embodiment, as shown in fig. 1, a fish breeding station 6 is further provided at one side of the spiral fishway 2, and the fish breeding station 6 is provided with facilities for breeding and cultivating fish for breeding and returning. This structure is useful for helping recovery of the population number of the rare fish.
In the preferred scheme, as shown in fig. 1, a first fishway 8 and a second fishway 10 are respectively arranged at the positions of the fishway communicated with the dam body 1; the first fishway 8 and the second fishway 10 are located on the downstream side of the dam 1.
The first fishway 8 is arranged along the axial direction, one end of the dam body 1 passes through the dam body 1 and is connected with the fish outlet fishway 13, and the fish outlet fishway 13 is arranged along the upstream slope of the dam body 1; the first fishway 8 is used for fish passing in the non-flood period. In the non-flood period, the reservoir is higher in storage capacity and exceeds 60m in elevation, and fish pass through the first fishway 8 at the moment.
The second fishway 10 is arranged along the downstream slope and is directly communicated with the water channel 16 of the dam body 1; the second fishway 10 is used for fish passing in flood season. The reservoir stores water to a height of 47.6 meters in the flood limit water level in the flood season, and fish is transported through the second fishway 10.
In the preferred scheme, an open channel 9 is further arranged, one end of the open channel 9 penetrates through the dam body 1, an open channel gate is arranged at the position of the dam body 1, the other end of the open channel 9 is connected with the flood beach 5 of the spiral fishway 2, the open channel 9 is positioned at the downstream of the dam body 1, and the open channel is used for supplementing water for the whole fishway. Preferably, the end that open channel 9 and dam body 1 are connected is narrower, and the end that open channel 9 and flood bank 5 are connected is wider, and the structure of diffusion rivers through flood bank 5 avoids causing the scouring to the fishway in the moisturizing of moisturizing to the fishway.
A first fishway gate 15 is provided on the first fishway 8, and a second fishway gate 11 is provided on the canal 16. With this configuration, different fishways are used by switching gates. In this example, the first fishway 8 and the second fishway 10 are equal-width fishways.
In a preferred embodiment, as shown in fig. 1, a first fish outlet 131 is formed at one end of the fish outlet channel 13 near the dam body 1, a curved portion is formed at the other end of the fish outlet channel 13, and a second fish outlet 132 and a third fish outlet 133 are formed at two ends of the curved portion. With the structure, the fish outlet device adapts to different upstream water level changes, and each fish outlet is provided with an independent gate.
In the preferred scheme, as shown in fig. 4, baffle plates 106 are arranged on the inner wall of the fishway in a staggered manner, one end of each baffle plate 106 is connected with the inner wall of one side of the fishway, the other end of each baffle plate is directed to the inner wall of the other side of the fishway, the free ends of the baffle plates 106 are provided with bending parts 107 which are bent upwards, and the free ends of the baffle plates 106 are mutually staggered. With this structure, the water flow can be further slowed down. The baffles 106 of this staggered arrangement are provided at the first and second fishways 8, 10 and at the locations where the sections of the spiral fishway 2 do not provide the flood beach 5 and the rest pool 4.
In a preferred embodiment, as shown in fig. 3, prefabricated wall panels 104 are provided on the side walls and bottom of the fishway, and the surface of the prefabricated wall panels 104 is provided with embedded pebbles 105, and part of the pebbles 105 protrude from the surface of the prefabricated wall panels 104. With this structure, the construction efficiency of the fishway, especially the construction efficiency of the pebble 105, can be greatly improved by mass production.
Example 2:
the construction method of the migration type ecological fishway comprises the following steps:
S1, as shown in FIG. 5, preparing a prefabricated wall board 104, arranging a side die 108 and a bottom die 109, arranging a flexible deformation layer 110 on the upper surface of the bottom die 109, wherein the flexible deformation layer 110 is a non-water-absorbing organic material which can be locally deformed under the gravity of pebbles 105, such as a sponge material for sealing holes and non-water absorption. In this case, a flexible sponge board with a thickness of 5 cm-10 cm is preferably adopted, and preferably, the flexible sponge board in this case adopts a structure of five-face hole sealing, namely, as shown in fig. 5, one face of the flexible sponge board, which is in contact with mortar, and four side faces connected with the face are hole sealed, while the other face is not hole sealed. The double-sided adhesive tape with the intermittent structure is adhered to the upper surface of the bottom die 109, an exhaust channel is formed between the double-sided adhesive tape with the intermittent structure, a layer of pebbles 105 is densely distributed on the flexible deformation layer 110, the pebbles 105 are sufficiently cleaned to remove surface sediment, the particle size of the pebbles 105 is 3-10 cm, after the pebbles 105 are distributed, the pebbles are checked to be partially sunk into the flexible deformation layer 110, and a frame-shaped weight structure is arranged on the back of the pebbles, so that the pebbles are partially sunk into the flexible deformation layer 110 and are kept, and floating is avoided. Pouring a layer of mortar, namely, the thickness of the mortar is equal to that of the pebble 105, placing a reinforcing mesh into the mortar, pouring the rest of mortar, and adopting layered pouring to avoid the mortar from completely flattening the flexible deformation layer 110 to influence the protruding degree of the pebble 105 on the surface, vibrating the mortar uniformly, solidifying the mortar, demoulding, curing for 7-12 days, and preferably adopting steam curing to obtain the prefabricated wallboard 104; the pebbles 105 on the surface of the prefabricated wall panel 104 obtained by the scheme are not easy to fall off.
S2, pouring a fishway bottom plate 103 by a vertical mould, wherein the parting interval of the fishway bottom plate 103 is the same as the length of the prefabricated wall plate 104, a rubber water stop belt is arranged at the parting position, asphalt felt is laid on the parting surface, the prefabricated wall plate 104 is placed on the poured fishway bottom plate 103 as the upper surface of the fishway bottom plate 103, and preferably, the prefabricated wall plate 104 is placed after the vibration is finished;
s3, taking the prefabricated wall plate 104 as an inner mold of the fishway side wall 101, binding steel bars, erecting an outer mold, fixing the prefabricated wall plate 104 by penetrating a brace screw rod through a hole on the prefabricated wall plate 104, and pouring the fishway side wall 101;
The rapid construction of the multistage fishway with the pebbles 105 on the inner wall in the migration type ecological fishway is realized through the steps. Compared with the construction scheme of the slurry pebble adopted in the prior art, the efficiency is improved by more than 30 percent.
The above embodiments are merely preferred embodiments of the present application, and should not be construed as limiting the present application, and the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without collision. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.
Claims (8)
1. A construction method of a migration type ecological fishway is characterized by comprising the following steps: the dam comprises a fishway communicated with the upstream and the downstream of a dam body (1), wherein a spiral fishway (2) with reciprocating bending is arranged at the downstream of the fishway, and the spiral fishway (2) is used for reducing the gradient of the fishway;
The side wall and the bottom of the fishway are provided with prefabricated wall plates (104), the surface of the prefabricated wall plates (104) is provided with embedded pebbles (105), and part of pebbles (105) protrudes out of the surface of the prefabricated wall plates (104);
the method comprises the following steps:
S1, preparing a prefabricated wallboard (104), arranging a side die (108) and a bottom die (109), arranging a flexible deformation layer (110) on the upper surface of the bottom die (109), wherein the flexible deformation layer (110) is an organic material which can be deformed locally under the gravity of pebbles (105) and does not absorb water, arranging a layer of pebbles (105), wherein the particle size of the pebbles (105) is 3-10 cm, pouring mortar, and solidifying the mortar to obtain the prefabricated wallboard (104);
s2, standing a formwork to pour a fishway bottom plate (103), and placing a prefabricated wall plate (104) on the poured fishway bottom plate (103) to serve as the upper surface of the fishway bottom plate (103);
S3, pouring the fishway side wall (101) by taking the prefabricated wall plate (104) as an inner mold of the fishway side wall (101);
through the steps, quick construction of the migration type ecological fishway is realized.
2. The construction method of the migration type ecological fishway according to claim 1, which is characterized in that: at least one side of the spiral fishway (2) is provided with a flood beach (5), and the bottom of the flood beach (5) is higher than the top of the spiral fishway (2).
3. The construction method of the migration type ecological fishway according to claim 1 or 2, characterized in that: the rest pool (4) is arranged at the position with larger curvature of the spiral fishway (2), and the bottom of the rest pool (4) is lower than or flush with the bottom of the spiral fishway (2).
4. The construction method of the migration type ecological fishway according to claim 1 or 2, characterized in that: the bottom of the spiral fishway (2) is provided with a block stone (3), part of the block stone (3) protrudes out of the inner wall of the spiral fishway (2), and the particle size of the block stone (3) is larger than 10cm.
5. The construction method of the migration type ecological fishway according to claim 1, which is characterized in that: a fish breeding station (6) is arranged at one side of the spiral fishway (2) and is used for breeding fish and replacing the fish.
6. The construction method of the migration type ecological fishway according to claim 1, which is characterized in that: the first fishway (8) and the second fishway (10) are respectively arranged at the positions of the fishway communicated with the dam body (1);
The first fishway (8) is arranged along the axial direction, one end of the dam body (1) penetrates through the dam body (1) to be connected with the fish outlet fishway (13), the fish outlet fishway (13) is arranged along the upstream slope of the dam body (1), and the first fishway (8) is used for fish passing in a non-flood period;
The second fishway (10) is arranged along the downstream slope and is directly communicated with the water channel (16) of the dam body (1), and the second fishway (10) is used for fish passing in flood season;
a first fishway gate (15) is arranged on the first fishway (8), and a second fishway gate (11) is arranged on the water channel (16).
7. The construction method of the migration type ecological fishway according to claim 6, wherein the construction method is characterized in that: a first fish outlet (131) is formed in one end, close to the dam body (1), of the fish outlet fishway (13), a bending portion is formed in the other end of the fish outlet fishway (13), and a second fish outlet (132) and a third fish outlet (133) are formed in two ends of the bending portion respectively.
8. The construction method of the migration type ecological fishway according to claim 6, wherein the construction method is characterized in that: the inner wall of the fishway is provided with baffle plates (106) which are arranged in a staggered way, one end of each baffle plate (106) is connected with the inner wall of one side of the fishway, the other end of each baffle plate is directed to the inner wall of the other side of the fishway, the free ends of each baffle plate (106) are provided with bending parts (107) which are bent upwards, and the free ends of the baffle plates (106) are arranged in a staggered way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465602.4A CN113136845B (en) | 2021-04-28 | 2021-04-28 | Migration type ecological fishway and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465602.4A CN113136845B (en) | 2021-04-28 | 2021-04-28 | Migration type ecological fishway and construction method |
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| Publication Number | Publication Date |
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| CN113136845A CN113136845A (en) | 2021-07-20 |
| CN113136845B true CN113136845B (en) | 2024-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110465602.4A Active CN113136845B (en) | 2021-04-28 | 2021-04-28 | Migration type ecological fishway and construction method |
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| CN (1) | CN113136845B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638378A (en) * | 2021-08-23 | 2021-11-12 | 广州市城市规划勘测设计研究院 | Continuous flow ecological bypass type nature-imitated fishway |
| CN114319262A (en) * | 2022-01-24 | 2022-04-12 | 中国计量大学 | Fish migration channel with energy dissipation structure |
| CN114481978B (en) * | 2022-02-12 | 2023-01-31 | 郑州大学 | Multi-way energy dissipation and resistance reduction type ecological fishway |
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| CN110397000A (en) * | 2019-07-04 | 2019-11-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Fish protection system combining fishway and proliferation station |
| CN210636398U (en) * | 2019-07-09 | 2020-05-29 | 中国电建集团华东勘测设计研究院有限公司 | Fishway inlet or outlet structure capable of passing fishes in layers |
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| JP3516043B2 (en) * | 1998-07-03 | 2004-04-05 | 株式会社ホクエツ | Cobblestone fishway block and cobblestone fishway |
| JP4457384B2 (en) * | 2004-08-27 | 2010-04-28 | 藤村ヒューム管株式会社 | Fishway construction method using a fishway block and this fishway block |
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| CN108277784B (en) * | 2018-02-05 | 2019-11-29 | 安徽理工大学 | It is adapted to the imitative nature fish pass of different Burden-Swimming Ability of KM fish |
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2021
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| CN205152916U (en) * | 2015-11-27 | 2016-04-13 | 中国电建集团贵阳勘测设计研究院有限公司 | Energy dissipation column type fishway structure |
| CN110397000A (en) * | 2019-07-04 | 2019-11-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Fish protection system combining fishway and proliferation station |
| CN210636398U (en) * | 2019-07-09 | 2020-05-29 | 中国电建集团华东勘测设计研究院有限公司 | Fishway inlet or outlet structure capable of passing fishes in layers |
| CN211200321U (en) * | 2019-10-29 | 2020-08-07 | 浙江省水利河口研究院 | Fish passageway structure is crossed to low head weir dam |
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