A vertical joint type fishway for water conservancy and hydropower engineering and a fishway evaluation system

Abstract

The application discloses a water conservancy and hydropower engineering vertical-seam fishway and a fishway evaluation system, which comprises a fishway body and an optimization assembly arranged in the fishway, and the fishway body comprises a side wall and a partition plate structure arranged on the side wall, the partition plate structure divides the fishway body into a normal chamber and a turning section, the partition plate structure comprises a long partition plate and a short partition plate, the long partition plate and the short partition plate are oppositely arranged, and a pool chamber vertical seam is reserved between the long partition plate and the short partition plate, the normal chamber and the turning section are communicated with each other through the pool chamber vertical seam, the fishway body further comprises an inlet and an outlet communicated with the normal chamber, the inlet comprises a high-flow-speed inlet and a low-flow-speed inlet, the fishway body comprises a high-flow-speed fishway and a low-flow-speed fishway, the high-flow-speed inlet is arranged at one end of the high-flow-speed fishway, and the low-flow-speed inlet is arranged at one end of the low-flow-speed fishway. The application establishes an evaluation method and a benchmark for the advantages and disadvantages of the fishway water flow structure, and provides a biological basis for the hydraulic design and the body shape improvement research.

Description

Technical Field

[0001] This invention pertains to hydraulic engineering model testing devices, and in particular relates to a vertical slotted fishway for water conservancy and hydropower projects and a fishway evaluation system. Background Technology

[0002] While water conservancy and hydropower projects offer significant comprehensive benefits such as flood control, power generation, and navigation, they can also obstruct fish migration routes and disrupt the connectivity of important aquatic habitats, contributing significantly to the decline of migratory fish populations. Furthermore, these projects alter upstream and downstream natural hydrological conditions, weakening the stimulating conditions for river fish and leading to reduced breeding volumes. Under the principles of "ecological priority, green development," and "Yangtze River protection," reconstructing fish habitats under the influence of water conservancy and hydropower projects, rebuilding vital migration routes, and creating suitable environments for natural fish reproduction are necessary means to mitigate the adverse effects of these projects while respecting the physiological and genetic needs of fish.

[0003] Fishways are crucial environmental facilities that help fish overcome the obstruction of dams and sluices and successfully migrate upstream. Research on fishways in my country started relatively late and stagnated for nearly 30 years due to historical reasons. The lack of mature experience and substantial practical needs have spurred research into fishway hydraulics, but my country's research and construction levels have consistently lagged behind advanced international levels. The fish that pass through fishways in my country are mainly semi-migratory fish, whose swimming abilities are weaker compared to migratory fish in other countries; therefore, existing international experience cannot be directly applied. Furthermore, in the past, my country has focused more on the flood control, power generation, water supply, and navigation functions of water conservancy and hydropower projects, lacking systematic application technologies for fishway hydraulic regulation. This is a key technological bottleneck and a global challenge restricting the sustainable development of water conservancy and hydropower projects. While water conservancy and hydropower projects provide significant comprehensive benefits, they also obstruct fish migration routes, threaten fish habitats, and have a profound impact on fish survival and reproduction. Under the background of "ecological priority and green development", solving the problem of optimizing the design of fish passage facilities such as fishways and implementing fishway hydraulic regulation measures that meet the needs of fish to swim upstream are effective means to mitigate the adverse effects of the project and protect fish when crossing the dam.

[0004] In the prior art, such as the Chinese invention patent with patent number CN201210258999.0 entitled "Vertical Slit Fishway Structure", although it provides a fishway for reducing the impact of hydropower and water conservancy projects on fish migration, the structure of this type of fishway is difficult to cope with complex and variable terrain, the fishway layout scheme is too simplistic, and it is difficult to adapt to the different flow velocity requirements of fish passage targets at different times. After the fishway is used, its effectiveness cannot be evaluated based on fish migration, which is detrimental to the development of fishways and subsequent water conservancy and hydropower design. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to provide a vertical slotted fishway for water conservancy and hydropower projects with a wide range of applications and a self-evaluation system, as well as a fishway evaluation system.

[0006] Technical Solution: The vertical slotted fishway for water conservancy and hydropower engineering described in this invention includes a fishway body, which includes a sidewall and a partition structure disposed on the sidewall. The partition structure divides the fishway body into a conventional chamber and a turning section. The partition structure includes a long partition and a short partition, which are arranged opposite to each other. A vertical slot is reserved between the long partition and the short partition. The conventional chamber and the turning section are interconnected through the vertical slot. The fishway body also includes an inlet and an outlet communicating with the conventional chamber. The inlet includes a high-velocity inlet and a low-velocity inlet. The fishway body includes a high-velocity fishway and a low-velocity fishway. The high-velocity inlet is disposed at one end of the high-velocity fishway, and the low-velocity inlet is disposed at one end of the low-velocity fishway.

[0007] The length-to-width ratio L / B of the conventional chamber is 9:8 to 10.5:8, the length-to-width ratio P / B of the short partition 61 to the width of the conventional chamber 4 is 0.2 to 0.34, and the width-to-width ratio b / B of the vertical gap 63 of the pool chamber to the conventional chamber 4 is 0.15 to 0.20.

[0008] The long partition 62 and the short partition 61 are provided with guide angles on one side close to each other, and the guide angle A is set at 45°.

[0009] The conventional interior is equipped with C-shaped columns.

[0010] The entrance is equipped with a waterproof lamp tube and a base station connected to the waterproof lamp tube. The base station is equipped with a reverse touch control unit for turning the light on and off.

[0011] The optimization components include a hydrodynamic and aquatic environment condition unit suitable for fish migration, a fishway optimization design technology unit based on hydraulic characteristics, a fishway hydraulics and fish behavior response relationship unit, and a fishway hydraulic regulation application unit. The hydrodynamic and aquatic environment condition unit is used to acquire aquatic environment data for fish survival and migration. Based on the aquatic environment data, the fishway optimization design technology unit optimizes the fishway itself. The fishway hydraulics and fish behavior response relationship unit conducts simulation experiments on the optimized fishway and provides corresponding evaluation results. The fishway hydraulic regulation application unit detects other units and the fishway itself.

[0012] Among them, the hydrodynamic water environment condition unit includes a hydrodynamic module, a water environment module, and a fish swimming ability module. Among them, the hydrodynamic module is used to provide the preferred flow velocity, turbulent kinetic energy, water depth, vorticity, and shear stress ranges required for the design of the fishway body. The water environment module is used to obtain the suitable water environment factors throughout the fish life history. The water environment factors include the parameter values of temperature, substrate, sound, light electromagnetic field, and bubble curtain required for fish life. The fish swimming ability module is used to obtain induced flow velocity data, critical swimming speed data, burst swimming speed, and sustained endurance swimming speed.

[0013] Among them, the fishway optimization design technology unit includes: a conventional pool chamber structure design module, an unconventional pool chamber structure design module, a fishway inlet and outlet adaptive water level change module, and a fishway inlet fish aggregation technology module. Among them, the conventional pool chamber structure design module is used to set a reasonable value range for the layout parameters of the conventional chamber. The unconventional pool chamber structure design module proposes specific improvement measures and optimized layout schemes for the turning section. The fishway inlet and outlet adaptive water level change module adapts to the inlet and outlet of the fishway body with water level changes. The fishway inlet fish aggregation technology module is used to propose a new fish aggregation technology in the fishway inlet area that improves the hydrodynamic conditions based on the principles of jet flow and river regulation. <000,0032>Among them, the fishway hydraulics and fish behavior response relationship unit consists of a water flow stimulation-response model module, a fishway problem pool chamber diagnosis module, and a whole-process fish passage effect evaluation module.

[0015] Among them, the water flow stimulation-response model module is used to accurately reproduce the fish movement trajectory to diagnose the fishway problem pool chamber, and to evaluate the whole-process fish passage effect of the fishway in combination with the fish passage effect evaluation method. Specifically, it includes the preferred hydraulic water environment factors and ranges of fish, and judges the behavioral responses of fish passage objects to a certain stimulus. The perception range of fish responding to water flow stimulation can be expressed by the following random function:

[0016]

[0017] Among them, RN(0 < RN < 1) is a random variable, Lf is the body length of the fish. The longer the body length of the fish, the farther the perception range of the hydrodynamic stimulus source. <000004,0>

[0018] Among them, the fishway problem pool chamber diagnosis module uses a recurrent neural network intelligent algorithm (RNN) to predict the passing rate and passing time of the adjacent several pool chambers, and calculates the output of the recurrent neural network:

[0019]

[0020]

[0021] In the above formula, f( ) is the activation function, xt Ot represents the input at time t, Ot represents the output at time t, and St represents the memory at time t.

[0022] The whole-process fish passage effect evaluation module combines diversified fish passage upstream behavior data statistical methods to create a fish passage effect monitoring and evaluation system that focuses on the fish upstream process, which includes "evaluation index adaptation - monitoring method selection - fish passage model prediction". Specifically, it includes an indicator system that reflects the whole process of fish upstream, including fish species, quantity, attraction rate, entry time, passage rate, passage time, turnback rate, attempt rate and delay time, and proposes a set of monitoring technology selection methods to adapt to each indicator.

[0023] The method for selecting monitoring technologies includes the following steps:

[0024] Step 1: After inputting the behavior data of the fish, the system selects the monitoring method and chooses the corresponding upstream behavior data statistics method;

[0025] Step 2: Analyze existing fish behavior data and adapt appropriate fish passage effect evaluation indicators;

[0026] Step 3: If the fit value does not meet the requirements, the upstream behavior data statistics method needs to be reselected. When the fit value reaches the optimal level, the system will build a fish-passing effect prediction model and evaluate the fish-passing effect through the constructed fish-passing effect prediction model.

[0027] Step 4: If the evaluation result of the fish crossing effect is excellent, output the evaluation result of the fish crossing effect. If the evaluation result of the fish crossing effect is not excellent, the upstream behavior data statistics method needs to be selected again.

[0028] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0029] (1) In response to the problem of water conservancy and hydropower projects blocking fish migration channels, a fishway optimization design technology based on hydraulic characteristics was invented. The vertical slit fishway flow structure type suitable for the four major Chinese carp and schizothorax was identified, and an evaluation method and benchmark for the quality of fishway flow structure were established, providing a biological basis for its hydraulic design and body shape improvement research.

[0030] (2) The hydraulic characteristics of vertical slot fishway were systematically studied. For the first time, the reasonable range of values ​​for the main body shape layout parameters of vertical slot fishway was proposed. Conventional pools and turning sections were established. The turning sections can serve as resting places for fish. Compared with the single type of existing fishway, it is more adaptable and more conducive to fish swimming upstream.

[0031] (3) A fishway inlet and outlet adapted to large water level fluctuations were invented. A fish-attracting device was installed in the fishway inlet area, which effectively solved the migration problem of fish species with generally weak upstream ability in my country and increased the probability of fish migrating upstream. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the vertical slotted fishway system of the present invention;

[0033] Figure 2 This is a schematic diagram of the vertical slotted fishway structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the C-pillar structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the fish-attracting device of the present invention;

[0036] Figure 5 This is a structural schematic diagram of the conventional room size design of this invention;

[0037] Figure 6 This is a schematic diagram of the water flow stimulus-response model of the present invention;

[0038] Figure 7 This is a diagram illustrating the framework of the fishway effectiveness monitoring and evaluation system of this invention. Detailed Implementation

[0039] As attached Figures 1-7 As shown, the present invention relates to a vertical slotted fishway for water conservancy and hydropower engineering, comprising a fishway body, which includes a side wall 9 and a partition structure 6 disposed on the side wall 9. The partition structure 6 divides the fishway body into a conventional chamber 4 and a turning section 5. The partition structure 6 includes a long partition 62 and a short partition 61, which are arranged opposite to each other. A vertical slot 63 is reserved between the long partition 62 and the short partition 61. The conventional chamber 4 and the turning section 5 are interconnected through the vertical slot 63. The fishway body also includes an inlet 7 and an outlet 8 communicating with the conventional chamber 4. The inlet 7 includes a high-velocity inlet 14 and a low-velocity inlet 15. The fishway body includes a high-velocity fishway 17 and a low-velocity fishway 18. The high-velocity inlet 14 is disposed at one end of the high-velocity fishway 17, and the low-velocity inlet 15 is disposed at one end of the low-velocity fishway 18.

[0040] To further enhance the adaptability of the device, a C-shaped column 16 was added to the conventional fishway chamber 4. Due to the variable water flow environment, the flow velocity through the vertical slits flows around the column, generating multiple water flow columns, reducing the dispersion of the water flow, and adapting to the needs of multiple fish passages in domestic fishways. Since the swimming ability of fish at different physiological stages is different, this innovative structural change improves the water flow structure, making it more suitable for the needs of fish to swim upstream.

[0041] To increase the likelihood of fish approaching the fishway, a detachable light tube 10 is installed at the entrance of the fishway. Utilizing the fish's phototaxis, it attracts them to the fishway entrance 7. The light tube is connected to a base station 19, which is a waterproof container containing an electronic reverse touch device. When a fish bumps into the tube, it indicates that the fish has been attracted to the vicinity of the fishway entrance, and the light needs to be turned off to allow the water flow at the fishway entrance to attract the fish. Of course, only sufficient impact can trigger this device. After triggering, the light will turn off and automatically turn on after two hours. Sufficient impact indicates that a large number of fish have gathered there, and the attraction purpose has been achieved.

[0042] The aforementioned fishway evaluation system includes a hydrodynamic and aquatic environment condition unit 1 suitable for fish upstream migration, a fishway optimization design technology unit 2 based on hydraulic characteristics, a fishway hydraulics and fish behavior response relationship unit 3, and a fishway hydraulic regulation application unit. The hydrodynamic and aquatic environment condition unit 1 comprehensively analyzes the hydrology, hydrodynamics, water temperature, water quality, and thresholds required for the upstream migration of target fish species, and proposes environmental indicators for fish habitat regulation, including a hydrodynamic module 11, an aquatic environment module 12, and a fish swimming ability module 13. The hydrodynamic module 11 provides thresholds for fish-preferred flow velocity, turbulent kinetic energy, water depth, eddy current, and shear stress required for fishway design. The aquatic environment module 12 can acquire suitable aquatic environment factors throughout the fish's life cycle, including temperature, substrate, sound, light, and electromagnetic field required for fish life. Reasonable parameter values ​​for sound, light, electromagnetic field, and bubble curtain can be set, such as appropriate sound waves, sound and color, light intensity, and the magnitude of the magnetic field generated by voltage and current. Furthermore, the bubble curtain creates a barrier by generating bubbles, thereby hindering or guiding the fish's direction of movement, thus achieving the purpose of fish crossing the dam. The fish swimming ability module 13 includes sensing flow velocity, critical swimming speed, burst swimming speed, and sustained endurance swimming speed. Fish swimming ability plays an important role in important life activities such as fish migration, obstacle passage, escape from predators, and predation. Therefore, the fish swimming ability evaluation indicators covered by the fish swimming ability module provide data support for engineering applications such as fishway design.

[0043] The hydrodynamic and aquatic environment conditions suitable for fish to swim upstream are proposed through three modules: hydrodynamic module 11, aquatic environment module 12, and fish swimming ability module 13. The hydrodynamic parameters suitable for fish to swim upstream, which are covered by hydrodynamic module 11, the aquatic environment factors suitable for fish to swim upstream, which are covered by aquatic environment module 12, and the fish swimming ability evaluation indicators, which are covered by fish swimming ability module 13, all provide data support for engineering applications such as fishway design.

[0044] Among them, the conventional pool chamber structure design module 21 proposes a reasonable value range for the layout parameters of the conventional pool chamber of the vertical slot fishway, and clarifies specific design parameters: the length-width ratio L / B = 9:8 to 10.5:8, the guide plate length P / B = 0.2 to 0.34, the vertical slot width b / B = 0.15 to 0.20, and the vertical slot guiding angle should be 45°. The structure of the fishway pool chamber to be built should be arranged referring to the above parameters; the unconventional pool chambers include the rest pool chamber and the 90° or 180° turning section 5. The design of the unconventional pool chamber structure can refer to the specific improvement measures, optimized layout schemes of the unconventional pool chamber and the optimized layout scheme of the rest pool proposed by the unconventional pool chamber structure design module 22 to avoid the generation of adverse water flow patterns in the fishway, thus affecting the upstream behavior of fish passage objects; at the same time, the optimized layout schemes of the turning section and the bifurcation section realize the no-gate control design concept, thus solving the difficulties and design problems in the layout of high-head and long-distance fishways; the fishway inlet and outlet adaptive water level change module 23 innovatively proposes a design method for the inlet section and outlet section of the vertical slot fishway with adaptive water level change, develops a design method for the inlet section and outlet section of the vertical slot fishway with adaptive water level change, realizes the no-gate control design concept, and has the value of popularization and application in daily regulation reservoirs; the fishway inlet fish collection and attraction technology module 24, based on the hydrodynamic factors such as flow velocity, water depth, and turbulent kinetic energy of fish migration, uses temperature change, jet flow and river regulation to improve the hydrodynamic conditions to realize the fish collection and attraction technology, which is more economical and effective than the direct water supply method with large water supply flow in foreign fishways.

[0045] The unit 3 of the relationship between fishway hydraulics and fish behavior response consists of a water flow stimulation-response model module 31, a fishway problem pool chamber diagnosis module 32, and a whole-process fish passage effect evaluation module 33. The fishway problem pool chamber is determined by the water flow stimulation-response model module 31 to carry out the diagnosis work. The water flow stimulation-response model module 31 combines the response of the fish passage object itself to the water flow stimulation, conducts fish passage effect tests and simulation studies, and establishes a stimulation-response model for the movement of fish individuals in the water flow; Figure 1 It can be seen that the water flow stimulation-response model module 31 includes the hydraulic water environment factors and ranges preferred by fish, and judges the corresponding behavioral responses of fish passage objects to a certain stimulation. The perception range of fish's response to water flow stimulation can be expressed by the following random function:

[0046] <000 / < /

[0047] Among them, RN (0 < RN < 1) is a random variable, Lf is the body length of the fish. The longer the body length of the fish, the farther the perception range of the hydrodynamic stimulus source.

[0048] The fishway problem pool chamber diagnosis module 32 uses an intelligent algorithm based on a recurrent neural network (RNN) to predict the passing rate and passing time of adjacent pool chambers, and calculates the output of the recurrent neural network:

[0049]

[0050]

[0051] In the above formula, f() is the activation function, x t Ot represents the input at time t, Ot represents the output at time t, and St represents the memory at time t.

[0052] The whole-process fish passage effect evaluation module 33 combines diversified fishway upstream behavior data statistical methods to create a fishway effect monitoring and evaluation system that focuses on the fish upstream process, including "evaluation index adaptation - monitoring method selection - fish passage model prediction". According to Figure 7 After inputting the fish migration behavior data, the system selects a corresponding upstream behavior data statistical method for monitoring. It analyzes the existing fish behavior data and adapts reasonable fish migration effect evaluation indicators. If the fit value does not meet the requirements, the upstream behavior data statistical method needs to be reselected. When the fit value reaches the optimal level, the system constructs a fish migration effect prediction model. The system evaluates the fish migration effect using this model. If the evaluation result is excellent, the fish migration effect evaluation result is output; otherwise, the upstream behavior data statistical method needs to be reselected. The "Evaluation Indicator Adaptation - Monitoring Method Selection - Fish Migration Model Prediction" fishway effect monitoring and evaluation system covers an indicator system reflecting the entire process of fish migration, including fish species, quantity, attraction rate, entry time, passage rate, passage time, turnaround rate, attempt rate, and delay time. It proposes a complete set of monitoring technology selection methods adapted to each indicator.

[0053] The fishway hydraulic control application unit achieves suitable hydrodynamic and aquatic environmental conditions for fish to swim upstream (Unit 1), fishway optimization design technology based on hydraulic characteristics (Unit 2), and the relationship between fishway hydraulics and fish behavioral response (Unit 3). It also quantifies the correlation between hydraulics and fish behavioral indicators, establishes the design principle of vertical slot fishway structure, and uses video monitoring and other means to monitor the fishway site from multiple angles and with multiple methods. The fishway hydraulic control is achieved through a comprehensive on-site monitoring system.

Claims

1. A vertical slotted fishway evaluation system for water conservancy and hydropower projects, characterized in that: The vertical slotted fishway includes: a fishway body, which includes: a side wall (9) and a partition structure (6) disposed on the side wall (9). The partition structure (6) divides the fishway body into a regular chamber (4) and a turning section (5). The partition structure (6) includes a long partition (62) and a short partition (61). The long partition (62) and the short partition (61) are disposed opposite to each other. A vertical slot (63) is reserved between the long partition (62) and the short partition (61). The regular chamber (4) is... The turning section (5) is connected to each other through the vertical seam (63) of the pool chamber. The fish passage body also includes an inlet (7) and an outlet (8) connected to the conventional chamber (4). The inlet (7) includes a high-velocity inlet (14) and a low-velocity inlet (15). The fish passage body includes a high-velocity fish passage (17) and a low-velocity fish passage (18). The high-velocity inlet (14) is located at one end of the high-velocity fish passage (17), and the low-velocity inlet (15) is located at one end of the low-velocity fish passage (18). The vertical slit fishway evaluation system includes: a hydrodynamic and aquatic environment condition unit (1) suitable for fish to swim upstream, a fishway optimization design technology unit (2) based on hydrodynamic characteristics, a fishway hydrodynamics and fish behavior response relationship unit (3) and a fishway hydraulic regulation application unit; wherein, the hydrodynamic and aquatic environment condition unit (1) is set in the fishway body to obtain aquatic environment data for fish survival and upstream migration; based on the aquatic environment data, the fishway optimization design technology unit (2) optimizes the fishway body, the fishway hydrodynamics and fish behavior response relationship unit (3) conducts simulation experiments on the optimized fishway body and gives corresponding evaluation results, and the fishway hydraulic regulation application unit conducts simulation experiments on the optimized fishway body according to different types of fish and gives corresponding evaluation results to select the fishway body with the widest applicability. The hydrodynamic water environment condition unit (1) includes a hydrodynamic module (11), a water environment module (12), and a fish swimming ability module (13). The hydrodynamic module (11) is located at the inlet (7) or the vertical slit (63) of the pool to provide the fish preferred flow velocity, turbulent kinetic energy, water depth, eddy current, and shear stress range required for the design of the fishway. The water environment module (12) is used to obtain suitable water environment factors throughout the life history of fish. The water environment factors include the parameter values ​​of temperature, substrate, sound, light, electromagnetic field, and bubble curtain required for fish life. The fish swimming ability module (13) is used to obtain induced flow velocity data, critical swimming speed data, burst swimming speed, and sustained endurance swimming speed through experiments. The fishway hydraulics and fish behavior response relationship unit (3) consists of a water flow stimulus-response model module (31), a fishway problem pool diagnosis module (32), and a whole process fish passage effect evaluation module (33). The water flow stimulus-response model module (31) is used to determine the corresponding behavioral response of fish to stimuli, including specific hydrological environmental factors and ranges that fish prefer. The perceptual range of fish in response to water flow stimuli is determined by the following random function: ， Where RN is a random variable, 0 <RN<1, L f The longer the fish's body length, the farther it can perceive hydrodynamic stimuli. The fishway problem chamber diagnosis module (32) uses a recurrent neural network (RNN) intelligent algorithm to predict the throughput and throughput time of the adjacent conventional chamber (4), and calculates the output of the recurrent neural network: ， ， In the formula, f() is the activation function, and X is the activation function. t O represents the input at time t. t S represents the output at time t. t Represents the memory at time t; The whole process fish passage effect evaluation module (33) combines the data statistics of diversified fish passage upstream behavior to create a fish passage effect monitoring and evaluation system that focuses on the fish upstream process, namely "evaluation index adaptation - monitoring method selection - fish passage model prediction". Specifically, it includes an indicator system that reflects the whole process of fish upstream, including fish species, quantity, attraction rate, entry time, pass rate, pass time, turnback rate, attempt rate and delay time, and proposes a set of monitoring technology selection methods to adapt to each indicator. The fishway optimization design technology unit (2) includes: conventional pool structure design module (21), unconventional pool structure design module (22), fishway inlet and outlet adaptive water level change module (23), and fishway inlet fish attraction technology module (24). Among them, the conventional pool structure design module (21) is used to set a reasonable range of values ​​for the arrangement parameters of the conventional pool (4), the unconventional pool structure design module (22) proposes specific improvement measures and optimization layout schemes for the turning section (5), and the fishway inlet and outlet adaptive water level change module (23) proposes the inlet (7) and outlet (8) of the fishway body to adapt to water level changes. The fishway inlet fish attraction technology module (24) is used to propose a new fish attraction technology for the fishway inlet area to improve hydrodynamic conditions based on the principles of jet and river regulation.

2. The evaluation system for vertical slotted fishway in water conservancy and hydropower projects according to claim 1, characterized in that: The method for selecting monitoring technologies includes the following steps: Step 1: After inputting the behavior data of the fish, the system selects the monitoring method and chooses the corresponding upstream behavior data statistics method; Step 2: Analyze existing fish behavior data and adapt appropriate fish passage effect evaluation indicators; Step 3: If the fit value does not meet the requirements, the upstream behavior data statistics method needs to be reselected. When the fit value reaches the optimal level, the system will build a fish-passing effect prediction model and evaluate the fish-passing effect through the constructed fish-passing effect prediction model. Step 4: If the evaluation result of the fish crossing effect is excellent, output the evaluation result of the fish crossing effect. If the evaluation result of the fish crossing effect is not excellent, the upstream behavior data statistics method needs to be selected again.

3. The evaluation system for vertical slotted fishway in water conservancy and hydropower projects according to claim 1, characterized in that: The length-to-width ratio L / B of the conventional chamber (4) is 9:8 to 10.5:8, the length of the short partition (61) to the width of the conventional chamber (4) is P / B=0.2 to 0.34, and the vertical gap (63) of the pool chamber to the width of the conventional chamber (4) is b / B=0.15 to 0.

20.

4. The evaluation system for vertical slotted fishway in water conservancy and hydropower projects according to claim 1, characterized in that: The long partition (62) and the short partition (61) are provided with guide angles on one side close to each other, and the guide angles are set at 45°.

5. The evaluation system for vertical slotted fishway systems in water conservancy and hydropower projects according to claim 1, characterized in that: The conventional room (4) is equipped with a C-shaped column (16).

6. The evaluation system for vertical slotted fishway in water conservancy and hydropower projects according to claim 1, characterized in that: The entrance (7) is provided with a waterproof lamp tube (10) and a base station (19) connected to the waterproof lamp tube (10). The base station (19) is provided with a reverse touch control unit for turning the light on and off.

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