CN110468807B - Fishway multi-inlet or multi-outlet centralized parallel arrangement structure - Google Patents
Fishway multi-inlet or multi-outlet centralized parallel arrangement structure Download PDFInfo
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- CN110468807B CN110468807B CN201910613634.7A CN201910613634A CN110468807B CN 110468807 B CN110468807 B CN 110468807B CN 201910613634 A CN201910613634 A CN 201910613634A CN 110468807 B CN110468807 B CN 110468807B
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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
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Abstract
The invention provides a fishway multi-inlet or multi-outlet centralized parallel arrangement structure, which comprises a plurality of fishway inlet (outlet) ports, a gate opening and closing and transporting system, a transporting track, a fishway inlet (outlet) port gate storage slot, a matched fishway, a fishway inlet (outlet) port gate and a water retaining breast wall, wherein the fishway inlet (outlet) port gate is arranged in the fishway inlet (outlet) port; a plurality of fishway are advanced (go out) mouthful and are arranged by side in a set including, set gradually according to the operation water level height along supporting fishway, are provided with respectively into (go out) mouthful gate slot and fishway and advance (go out) mouthful gate, and these fishway advance (go out) mouthful gate and store up the gate slot and be followed the transportation track configuration under the different fishway operation water level circumstances, according to the operation water level interval of setting for, the relevant fishway is advanced (go out) mouthful gate of automatic open-close, guarantees that the fishway advances (go out) mouthful rivers velocity of flow and satisfies the condition of luring fish. The invention has the advantages of small arrangement range, compact structure, small interference to main engineering, convenient operation and maintenance, low construction cost and capability of adapting to large-amplitude operation water level.
Description
Technical Field
The invention relates to a fishway multi-inlet (outlet) port arrangement structure, in particular to a fishway multi-inlet (outlet) port centralized parallel arrangement structure capable of adapting to a large-amplitude operating water level, and belongs to the technical field of design and construction of hydraulic buildings.
Background
After the river is cut off due to the construction of a water retaining building, a migration channel is provided for some fishes with spawning habits migrating from the downstream of the river to the downstream of the river through the fishway, and in order to ensure the fish passing effect, the fishway is generally required to have the condition of continuously passing the fishes in the fish passing season. Water flow enters a fishway from a reservoir at the upstream of a water retaining structure and flows out of the fishway from a riverway at the downstream of the water retaining structure, migratory fishes enter the fishway from the downstream and swim out of the fishway from the downstream, so that a downstream water outlet is called a fishway inlet, and an upstream water inlet is called a fishway outlet.
Aiming at the actual engineering condition that the fish passing operation water level amplitude is large, in order to realize the purpose of passing fish, the fish channel inlet (outlet) port generally needs to meet the following requirements: 1. the fish way inlet (outlet) port needs to be capable of adapting to the downstream river water level amplitude of a water retaining structure, and can keep proper water depth and water flow velocity under any downstream fish passing operation water level; 2. the requirement of the water depth in the fishway is that the fishway pond chamber always needs to keep the design water depth requirement of 0.5-2.5 m; 3. according to the operating water levels of different inlet (outlet) ports, the fishway inlet (outlet) port can automatically open the gate of the corresponding inlet (outlet) port, and close the inlet (outlet) port gate which has adverse effect on the fish passing water flow; 4. for the fishway with multiple inlets (outlets), the operation and maintenance of the gate with multiple inlets (outlets) at the later stage are required to be convenient.
In order to meet the requirements, in the prior art, the arrangement scheme of the fish inlet (outlet) port is usually adopted for the situation that the amplitude of the water level of the fish passing operation is large as follows:
according to the different water levels of the inlet and outlet, the inlet and outlet with different elevations are continuously arranged along the bank of the downstream river channel (upstream reservoir) or combined with the hub building, and each inlet and outlet is provided with a gate. The arrangement is characterized in that: 1. the site arrangement condition is good, and a plurality of inlet (outlet) ports can be arranged in a suitable manner; 2. each inlet (outlet) is provided with a gate and an independent opening and closing device which can independently operate; 3. the requirement of the fishway for continuously passing the fish is met. The disadvantages of this structure are: 1. when the number of fish way inlets (outlets) is large, the structural arrangement is dispersed, which is not beneficial to operation and maintenance; 2. the arrangement of the edge line type along the bank needs a larger occupied field, and certain excavation supporting and foundation treatment engineering quantity can be brought; 3. a plurality of sets of gates and opening and closing systems need to be arranged; 4. the side wall of the whole fishway at the inlet (outlet) is required to be higher than the highest operation water level of the fishway or the highest flood control water level of a downstream riverway (reservoir), and the concrete height is larger; 5. sufficient arrangement conditions are also needed in connection with the arrangement of the junction building, and the overall consideration with the structure of the junction building is needed, so that the interference with the main engineering is large.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a fishway is imported more or the concentrated arrangement structure that parallels of many exports, and arrangement range is little, compact structure, and is little to main part engineering interference, and the operation maintenance is convenient, and construction cost is few, can adapt to the big amplitude of variation operation water level.
The technical scheme adopted for solving the technical problems is as follows: a fishway multi-inlet or multi-outlet centralized parallel arrangement structure is characterized in that: the fishway gate comprises a plurality of fishway inlets, a gate opening and closing and transporting system, a transporting track, a fishway inlet gate storage groove, a matched fishway, a fishway inlet gate and a water retaining breast wall;
the fishway inlets correspond to different river channel operating water levels respectively and have corresponding bottom plate elevations; the fishway inlets are arranged in a parallel and centralized manner and are respectively provided with an inlet gate slot, and the fishway inlets are arranged along the matched fishway in sequence according to the height of the operating water level; the fishway inlets are respectively provided with a fishway inlet gate, and the fishway inlet gates and the fishway inlet gate storage slots are arranged along the transportation track;
or comprises a plurality of fishway outlets, a gate opening and closing and transporting system, a transporting track, a fishway outlet gate storage slot, a matched fishway, a fishway outlet gate and a water retaining breast wall; the fishway outlets respectively correspond to different reservoir operating water levels and have corresponding floor elevations; the fishway outlets are arranged in a parallel and centralized manner and are respectively provided with an outlet gate slot, and the fishway outlets are sequentially arranged along the matched fishway according to the height of the operating water level; the plurality of fishway exits are respectively provided with a fishway exit gate, and the fishway exit gates and the fishway exit gate storage slots are arranged along the transportation track.
Under the condition of different fishway operating water levels, the related fishway inlet (outlet) gate is automatically opened and closed according to the set operating water level interval, so that the flow velocity of the fishway inlet (outlet) water flow is ensured to meet the fish luring condition.
Further, the fishway inlet gates of the plurality of fishway inlets share one set of gate opening and closing and transporting equipment, and the gate opening and closing and transporting equipment sequentially transports the fishway inlet gates corresponding to different river channel operation water levels to the fishway inlet gate storage gate slots for temporary storage along the transporting track from high to low and sequentially transports the fishway inlet gates to the corresponding fishway inlets from low to high; the fishway outlet gates of the fishway outlets share one set of gate opening and closing and transporting equipment, the gate opening and closing and transporting equipment transports the fishway outlet gates corresponding to different reservoir operation water levels to the fishway outlet gate storage gate slots in sequence from high to low along the transporting track for temporary storage, and transports the fishway outlet gates to corresponding fishway outlets in sequence from low to high.
Furthermore, the heights of the bottom plates of the fishway inlets are set in a grading manner according to the actual fishway operating water level, and the heights of the bottom plates of the fishway inlets are suitable for different fishway operating water level intervals on the premise of meeting the designed water depth of the fishway pond room; the heights of the bottom plates of the plurality of fishway outlets are set according to actual fishway running water levels in a grading manner, and the heights of the bottom plates of the fishway outlets are adapted to different fishway running water level intervals on the premise of meeting the designed water depth of the fishway pool chamber.
Furthermore, the heights of the top of the side walls of the inlets of the fishways are the same, and the heights of the top of the side walls are greater than the highest flood-control water level of the fishways, so that the fishways are not submerged by downstream river water in normal operation or in extreme cases; the side wall top elevations of the plurality of fishway outlets are the same and are greater than the highest running water level of fishway reservoir water, so that the fishway is not submerged by the reservoir water in normal running or extreme cases.
Furthermore, the matched fishway corresponding to the fishway inlet is in a parallel spiral or spiral arrangement mode so as to be smoothly connected with the fishway inlets with different elevations, the top elevation of the side wall of the matched fishway near the fishway inlet is greater than the highest flood-prevention water level of the fishway, the matched fishway is ensured not to be submerged by downstream river water in normal operation or under extreme conditions, and the height of the side walls of the fishways at other positions is considered according to the maximum water depth in the fishway plus the safety superelevation; the matched fishway corresponding to the fishway outlet is in a parallel spiral or spiral arrangement type so as to be smoothly connected with the fishway outlets with different elevations, the top elevation of the side wall of the matched fishway near the fishway outlet is greater than the highest running water level of the fishway, the matched fishway is ensured not to be submerged by reservoir water in normal running or extreme conditions, and the height of the side walls of the fishway at other positions is considered according to the maximum water depth in the fishway plus the safety superelevation.
Further, the fishway inlet gates of the plurality of fishway inlets are of the same structural size; the fishway inlet gates of the plurality of fishway outlets are of the same structure and size.
Further, the height of a water retaining breast wall of the fishway inlet is set according to the height of the bottom plate of the fishway inlet, the height of a fishway inlet gate and the requirement of the operating water level of the fishway; and setting the height of the water retaining breast wall of the fishway outlet according to the height of the bottom plate of the fishway outlet, the height of the fishway outlet gate and the requirement of the fishway operating water level.
The invention has the beneficial effects that: on the basis of a conventional fishway, the invention is suitable for large-amplitude operation water level by arranging a structure with a plurality of inlet (outlet) openings arranged in a centralized and parallel manner, and is convenient for arranging the inlet (outlet) openings together in a centralized manner. Because the linear fishway does not need to be arranged at the side length of the downstream edge shore of the water retaining building or in a large range, and the fishway is not needed to be arranged by utilizing the hub building, the arrangement space is saved, the foundation slope excavation supporting and foundation treatment engineering quantity is reduced, the interference with the hub building is reduced, the number of the opening and closing equipment can be effectively optimized, the automatic gate opening and closing equipment is adopted, the fishway inlet (outlet) port can be conveniently opened and closed automatically according to the amplitude of the actual operation water level, and the operation and the maintenance of a plurality of inlet (outlet) port gates of the fishway are facilitated.
Drawings
Fig. 1 is a schematic plan view of a fishway multi-inlet centralized parallel arrangement structure of the invention.
Fig. 2 is a typical cross-sectional view of a fishway multiple-inlet centralized parallel arrangement structure of the invention.
Fig. 3 is a schematic plan view of the fishway multi-outlet centralized parallel arrangement structure of the invention.
Fig. 4 is a typical cross-sectional view of a fishway multi-outlet centralized parallel arrangement structure of the invention.
Labeled as: fishway entrance (exit) port 1, entrance (exit) port gate slot 2, gate opening and closing and transporting equipment 3, transporting track 4, fishway entrance (exit) port gate storage slot 5, fishway 6, fishway entrance (exit) port gates 7-9 and water retaining breast wall 10.
The specific implementation mode is as follows:
for the purpose of promoting an understanding and an enabling description of the invention, preferred embodiments thereof have been chosen and described in connection with the accompanying drawings.
The invention mainly comprises a plurality of fishway inlet (outlet) ports 1, inlet (outlet) port gate slots 2, a gate opening and closing and transporting system, a transporting track 4, a fishway inlet (outlet) port gate storage slot 5, a fishway 6, fishway inlet (outlet) port gates 7-9 and a water retaining breast wall 10; each fishway is advanced (is gone out) 1 and is concentrated and set up the configuration respective and advance (go out) a mouthful gate slot 2 and advance (go out) a mouthful gate side by side, advances (go out) a mouthful gate and gate storage gate slot 5 along transportation track 4 setting, arranges the line, a plurality of fishways are advanced (are gone out) mouthful and are set gradually according to the operation water level height along supporting fishway, are convenient for the gate operation maintenance, and fishway is advanced (is gone out) mouthful gate structure size homogeneous phase the same.
According to the change condition of the operating water level of a river channel (reservoir), dividing the water head difference between the highest operating water level and the lowest operating water level into three sections of operating water level intervals according to the designed water depth of the fishway and the designed elevation of a fishway inlet (outlet) bottom plate, wherein the three sections of operating water level intervals are a water level interval A, a water level interval B and a water level interval C from high to low in sequence. A certain overlapping range is considered in each water level interval, so that different working gates at inlet (outlet) ports can be smoothly connected, and the phenomenon that the fishway is cut off when the gate is opened and closed alternately is avoided.
And (3) opening corresponding fishway outlet gates 7-9 according to the sections of the operating water levels of different reservoirs, and introducing water flow in the reservoirs into a matched fishway 6 from a fishway outlet 1.
And (3) opening corresponding fishway inlet gates 7-9 according to the regions of different downstream river channel operating water levels, and enabling the water flow in the matched fishway 6 to flow out of the fishway inlet 1 to the downstream river channel.
In order to realize the continuous water flow of the fishway inlet (outlet), the unattended operation and the intelligent control of the inlet (outlet) gate opening and closing equipment 3, the gate opening and closing and transporting system can be provided with the gate opening and closing and transporting equipment 3, a water level monitoring instrument, a water level data real-time acquisition and transmission system and a control system for automatically opening and closing the gate according to the water level change. The gate opening and closing and transporting system has the functions of automatic opening and closing and transportation, and according to the change condition of the upstream (downstream) water level, the gate opening and closing system has the functions of automatically opening and closing the corresponding fishway inlet (outlet) gates 7-9 and can automatically transport the fishway inlet (outlet) gates to the gate storage slots 5 for storage.
According to the practical situation, three water level conditions may exist in the water level of the river (reservoir), the first is that the water level of the river (reservoir) is located in the range of the operating water level of the fishway, the second is that the water level of the river (reservoir) is higher than the highest operating water level of the fishway, and the third is that the water level of the river (reservoir) is lower than the lowest operating water level of the fishway, under the three conditions, two inlet (outlet) arrangement modes illustrated in the attached drawings of the invention are further illustrated respectively:
1. fishway multi-inlet centralized parallel arrangement structure
(1) The water level of the river channel is positioned in the range of the operating water level of the fishway
When the water level operation interval A is within, a third fishway inlet gate 9 is lifted out of a third fishway inlet gate groove 2 by using gate opening and closing and transporting equipment 3, the third fishway inlet gate 9 is transported to the position of a third fishway inlet gate groove 5 through a transporting track 4, then the third fishway inlet gate 9 is lifted into the third fishway inlet gate groove 5, and when the third fishway inlet gate 9 is opened, the water flow in a matched fishway 6 flows out to a downstream river channel through a fishway inlet 1 according to the designed water depth of the fishway;
when the water level operation interval is reduced from the interval A to the interval B, the fishway inlet gate II 8 is lifted out of the fishway inlet gate groove 2, the fishway inlet gate II 8 is transported to the position of the fishway inlet gate storage gate groove 5 through the transportation track 4, then the fishway inlet gate II 8 is lifted into the fishway inlet gate storage gate groove 5, and when the fishway inlet gate II 8 is opened, the water flow in the matched fishway 6 flows out to a downstream river channel through the fishway inlet 1 according to the designed water depth of the fishway;
and thirdly, when the water level operation interval rises to the interval A from the interval B, the fishway inlet gate II 8 is lifted out of the fishway inlet gate storage gate groove 5, the fishway inlet gate II 8 is lifted into the corresponding fishway inlet gate groove 2 through the transportation track 4, and when the fishway inlet gate II 8 is closed, the water flow in the matched fishway 6 flows out to a downstream river channel through the fishway inlet 1 according to the designed water depth of the fishway.
Further: when the water level operation interval descends to C from B, correspondingly, the fishway inlet gate I7 is lifted out of the fishway inlet gate slot 2, the fishway inlet gate I7 is conveyed to the position of the fishway inlet gate storage gate slot 5 through the conveying track 4, then the fishway inlet gate I7 is lifted into the fishway inlet gate storage gate slot 5, when the fishway inlet gate I7 is opened, the water flow in the matched fishway 6 flows out to a downstream river channel through the fishway inlet 1 according to the designed water depth of the fishway.
When the water level operation interval rises from the interval C to the interval B, correspondingly, the fishway inlet gate I7 is lifted out of the fishway inlet gate storage gate groove 5, the fishway inlet gate I7 is lifted into the corresponding fishway inlet gate groove 2 through the transportation track 4, and when the fishway inlet gate I7 is closed, the water flow in the matched fishway 6 flows out to a downstream river channel through the fishway inlet 1 according to the designed water depth of the fishway.
Therefore, through one rail, one set of gate opening and closing and transportation equipment can open and close corresponding gates in sequence through simple control, and the inlet water level of the fishway can be corresponding to different running water levels of a river channel, so that fishes can normally migrate.
(2) The water level of the river channel is higher than the highest operation water level of the fishway
When the river water level is higher than the highest operation water level of the fishway, if the river water level exceeds the top of the gate, the fishway is in a submerged state, but the operation of the fishway is not influenced, only the water depth at the inlet is too large, the flow velocity of the water flow at the inlet of the fishway is too small, and fish cannot be lured to enter the fishway.
(3) The water level of the river channel is lower than the lowest operation water level of the fishway
When the water level of the river channel is lower than the lowest operation water level of the fishway, the water depth of the fishway inlet with the lowest elevation does not meet the designed water depth requirement of the fishway, and no fish enters the fishway inlet at the moment.
2. Fishway multi-outlet centralized parallel arrangement structure
(1) The reservoir water level is in the range of the fishway running water level
Firstly, when the water level operation interval A is in, a third fishway outlet gate 9 is lifted out of a fishway outlet gate groove 2 by using gate opening and closing and transportation equipment 3, the third fishway outlet gate 9 is transported to the position of a fishway outlet gate groove 5 through a transportation track 4, then the third fishway outlet gate 9 is lifted into the fishway outlet gate groove 5, and when the third fishway outlet gate 9 is opened, the water depth of an upstream reservoir is designed according to a fishway, and the water flows into a matched fishway 6 through a fishway outlet 1;
when the water level operation interval is reduced from the interval A to the interval B, the second fishway outlet gate 8 is lifted out of the second fishway outlet gate groove 2, the second fishway outlet gate 8 is conveyed to the position of the second fishway outlet gate groove 5 through the conveying track 4, then the second fishway outlet gate 8 is lifted into the second fishway outlet gate groove 5, and when the second fishway outlet gate 8 is opened, the water in an upstream reservoir flows into the matched fishway 6 through the fishway outlet 1 according to the designed water depth of the fishway;
and thirdly, when the water level operation interval rises from the interval B to the interval A, the fishway exit gate II 8 is lifted out of the fishway exit gate storage gate groove 5, the fishway exit gate II 8 is lifted into the corresponding fishway exit gate groove 2 through the transportation track 4, and when the fishway exit gate II 8 is closed, the upstream reservoir water flows into the matched fishway 6 through the fishway exit 1 according to the designed water depth of the fishway.
In addition, when the water level operation interval is reduced from the interval B to the interval C, the first fishway outlet gate 7 is lifted out of the fishway outlet gate groove 2, the first fishway outlet gate 7 is conveyed to the position of the fishway outlet gate storage groove 5 through the conveying track 4, then the first fishway outlet gate 7 is lifted into the fishway outlet gate storage groove 5, and when the first fishway outlet gate 7 is opened, the water in an upstream reservoir flows into a matched fishway 6 through the fishway outlet 1 according to the designed water depth of the fishway;
when the water level operation interval rises from the interval C to the interval B, the fishway outlet gate I7 is lifted out of the fishway outlet gate storage gate groove 5, the fishway outlet gate I7 is lifted into the corresponding fishway outlet gate groove 2 through the transportation track 4, and when the fishway outlet gate I7 is closed, the water in an upstream reservoir flows into the matched fishway 6 through the fishway outlet 1 according to the designed water depth of the fishway.
Therefore, through one rail, one set of gate opening and closing and transportation equipment can open and close corresponding gates in sequence through simple control, and the outlet water level of the fishway can cope with different running water levels of the reservoir, so that fishes can normally migrate.
(2) The water level of the reservoir is higher than the highest operation water level of the fishway
When the reservoir water level is higher than the highest operation water level of the fishway, the fishway is not suitable for operation, all gates at the outlet of the fishway need to be closed at the moment, if the reservoir water level exceeds the top of the gates, the fishway is in a submerged state, and at the moment, the fishway stops operating in order to ensure the safety of the fishway 6 and the downstream of a water retaining building. In the fish passing season, a fishway flood gate in a water retaining building needs to be opened, so that water in the fishway is ensured, and the fish in the fishway is prevented from being lack of water; in non-fish passing seasons, the fishway flood gate in the water retaining building is closed.
(3) The reservoir water level is lower than the lowest operation water level of the fishway
When the reservoir water level is lower than the lowest operation water level of the fishway, the water depth in the fishway does not meet the requirement of the designed water depth of the fishway, and the fishway also operates temporarily at the moment. In the fish passing season, artificial water replenishing can be considered, so that the water shortage of fishes in the fishway is avoided; in non-fish passing seasons, the fishway flood gate in the water retaining building is closed.
The above description is only an embodiment of the present invention, and the technical features of the present invention are not limited thereto, and any changes or modifications within the field of the present invention by those skilled in the relevant art are covered by the protection scope of the present invention.
Claims (4)
1. A fishway multi-inlet or multi-outlet centralized parallel arrangement structure is characterized in that: the fishway gate comprises a plurality of fishway inlets (1), gate opening and closing and transporting equipment, a transporting track (4), a fishway inlet gate storage slot (5), a matched fishway (6), fishway inlet gates (7-9) and a water retaining breast wall (10); the fishway inlets correspond to different river channel operating water levels respectively and have corresponding bottom plate elevations; the fishway inlets are arranged in a parallel and centralized manner and are respectively provided with an inlet gate slot, and the fishway inlets are arranged along the matched fishway in sequence according to the height of the operating water level; the fishway inlets are respectively provided with a fishway inlet gate, and the fishway inlet gates and the fishway inlet gate storage slots are arranged along the transportation track;
the matched fishway corresponding to the fishway inlet is arranged in a parallel spiral or spiral mode so as to be smoothly connected with the fishway inlets with different elevations, and the top elevation of the side wall of the matched fishway near the fishway inlet is greater than the highest flood-control water level of the fishway, so that the matched fishway is not submerged by downstream river water in normal operation or under extreme conditions;
the fishway inlet gates of the plurality of fishway inlets share one set of gate opening and closing and transporting equipment, and the gate opening and closing and transporting equipment transports the fishway inlet gates corresponding to different river channel operation water levels to the fishway inlet gate storage gate slot in sequence from high to low along the transportation track for temporary storage and transports the fishway inlet gates to corresponding fishway inlets in sequence from low to high;
setting the height of a water retaining breast wall at the fishway inlet according to the height of the bottom plate at the fishway inlet, the height of a fishway inlet gate and the requirement of the fishway operating water level;
or comprises a plurality of fishway outlets, gate opening and closing and transporting equipment, a transporting track, a fishway outlet gate storage slot, a matched fishway, a fishway outlet gate and a water retaining breast wall; the fishway outlets respectively correspond to different reservoir operating water levels and have corresponding floor elevations; the fishway outlets are arranged in a parallel and centralized manner and are respectively provided with an outlet gate slot, and the fishway outlets are sequentially arranged along the matched fishway according to the height of the operating water level; the fishway outlets are respectively provided with a fishway outlet gate, and the fishway outlet gates and the fishway outlet gate storage slots are arranged along the transportation track;
the matched fishway corresponding to the fishway outlet is arranged in a parallel spiral or spiral manner so as to be smoothly connected with the fishway outlets with different elevations, and the top elevation of the side wall of the matched fishway near the fishway outlet is greater than the highest running water level of the fishway reservoir water, so that the matched fishway is not submerged by the reservoir water in normal running or under extreme conditions;
the fishway outlet gates of the plurality of fishway outlets share one set of gate opening and closing and transporting equipment, and the gate opening and closing and transporting equipment sequentially transports the fishway outlet gates corresponding to different reservoir operation water levels to the fishway outlet gate storage gate slots for temporary storage along the transporting track from high to low and sequentially transports the fishway outlet gates to corresponding fishway outlets from low to high;
and setting the height of the water retaining breast wall of the fishway outlet according to the height of the bottom plate of the fishway outlet, the height of the fishway outlet gate and the requirement of the fishway operating water level.
2. The fishway multiple-inlet or multiple-outlet centralized parallel arrangement structure of claim 1, wherein: the heights of the bottom plates of the fishway inlets are set in a grading manner according to the actual fishway operating water level, and the heights of the bottom plates of the fishway inlets are adapted to different fishway operating water level intervals on the premise of meeting the designed water depth of a fishway pool chamber;
the heights of the bottom plates of the plurality of fishway outlets are set according to actual fishway running water levels in a grading manner, and the heights of the bottom plates of the fishway outlets are adapted to different fishway running water level intervals on the premise of meeting the designed water depth of the fishway pool chamber.
3. The fishway multiple-inlet or multiple-outlet centralized parallel arrangement structure of claim 1, wherein: the heights of the top of the side walls of the plurality of fishway inlets are the same, and the heights of the top of the side walls are greater than the highest flood-control water level of the fishway, so that the fishway is not submerged by downstream river water in normal operation or under extreme conditions;
the side wall top elevations of the plurality of fishway outlets are the same and are greater than the highest running water level of fishway reservoir water, so that the fishway is not submerged by the reservoir water in normal running or extreme cases.
4. The fishway multiple-inlet or multiple-outlet centralized parallel arrangement structure of claim 1, wherein: the fishway inlet gates of the fishway inlets are of the same structure and size; the fishway outlet gates of the plurality of fishway outlets are of the same structure and size.
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| CN111893965A (en) * | 2020-07-21 | 2020-11-06 | 长江勘测规划设计研究有限责任公司 | Fishway outlet structure adapting to large water level amplitude variation and fish passing method thereof |
| CN115492062A (en) * | 2022-11-16 | 2022-12-20 | 中国电建集团华东勘测设计研究院有限公司 | Spiral laminated fishway outlet structure suitable for large water level amplitude |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130121488A (en) * | 2012-04-27 | 2013-11-06 | 일성보산업(주) | Moveable fish way |
| CN107975016A (en) * | 2017-11-21 | 2018-05-01 | 中国电建集团成都勘测设计研究院有限公司 | Compound fish pass system on Narrow Valleys landform dam |
| CN210636399U (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 multi-inlet or multi-outlet centralized parallel arrangement structure |
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2019
- 2019-07-09 CN CN201910613634.7A patent/CN110468807B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130121488A (en) * | 2012-04-27 | 2013-11-06 | 일성보산업(주) | Moveable fish way |
| CN107975016A (en) * | 2017-11-21 | 2018-05-01 | 中国电建集团成都勘测设计研究院有限公司 | Compound fish pass system on Narrow Valleys landform dam |
| CN210636399U (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 multi-inlet or multi-outlet centralized parallel arrangement structure |
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