1741results about "Hydraulic engineering apparatus" patented technology

The invention relates to an ecological landscape type disaster reduction seawall, the section form of the seawall is a gentle slope into-sea multi-stage composite type, and the seawall structurally comprises a seawall foot on the seaside, a first-stage planting platform, a gentle slope, a second-stage planting platform, a waterside platform, a wave wall and a road which are sequentially arranged from sea to land; on the basis of ensuring safety, the seawall is subjected to ecological landscape design, so that the seawall can play roles in intercepting silt and purifying water; the effects of weakening wave energy and reducing marine disaster threats can be achieved; and meanwhile, the hydrophilicity of the seawall can be improved, and a leisure activity space is provided for people. The invention further relates to a design method of the ecological landscape type disaster reduction seawall and a method for determining the crest elevation of the ecological landscape type disaster reduction seawall. The section form of the seawall can be determined according to the wave height and the height difference between the sea level and the road surface, the crest elevation of the seawall can be effectively reduced, the engineering cost is reduced, and the seawall ecological function is increased.

Disclosed in the present invention are an ecological reservoir communicating water gate allowing for efficient water resource utilization, and a scheduling method using same. The water gate communicates a main reservoir and an ecological reservoir; a diversion open channel extending towards the ecological reservoir is arranged on the upstream of a gate chamber; a drainage open channel extending towards the main reservoir is arranged on the downstream of the gate chamber; splayed walls having arcs on two sides changing outwards gradually are arranged at the tail ends of the diversion open channel and the drainage open channel; the centerlines of the diversion open channel and the drainage open channel are bent in an obtuse angle with a circular arc transition. The scheduling method is a water gate operation scheduling scheme, which is as follows: a water gate is usually closed during normal times; when it rains, if the water level in an ecological reservoir rises to a height above water levels corresponding to floods with a return period of once every 50 years or greater, the water gate is opened; after the rain, when the water level in the ecological reservoir drops to a height below the water levels corresponding to floods with a return period of once every 50 years or greater, the water gate is closed. The present invention achieves the functions of rainwater purification and flood discharge.

The invention relates to the technical field of water conservancy project fish protection, in particular to a safe and efficient fish descending device and a descending operation method.The safe and efficient fish descending device comprises a descending tower, a descending fishway is arranged on the descending tower, and the descending tower communicates with an upstream river channel and a downstream river channel through a fish luring pond and a buffering fishway; an upstream dispatching area controlled by a gate is arranged on the upstream and used for attracting juvenile fishes and sending the juvenile fishes into a downstream fishway; the spiral descending fishway is arranged, the occupied area needed by a fish descending channel is greatly reduced, and the spiral descending fishway is suitable for various intermountain high dam environments lacking of construction of the descending channel; meanwhile, by arranging the buffer pool and the buffer fishway, the impact on the fishes during descending can be greatly relieved, and the survival rate of the fishes is increased; after the juvenile fishes are attracted into the fish luring pond through the fish luring mechanism, the juvenile fishes can be quickly conveyed to the downstream river channel through the downstream fishway by using the upstream and downstream water head difference as power, the downstream efficiency is high while the maintenance cost is kept low, and the device is suitable for wide application and popularization.

The invention discloses an alpine region-based double-curvature arch dam aeration ice-melting anti-icing device, and relates to the technical field of anti-icing, the alpine region-based double-curvature arch dam aeration ice-melting anti-icing device comprises a double-curvature arch dam body, a lifting structure, an aeration anti-icing structure, a PLC controller, a temperature sensor and a liquid level sensor are arranged on the outer convex curved surface side of the double-curvature arch dam body, and the aeration anti-icing structure comprises a plurality of fourth connecting pipes; the bottoms of the outer sides of the fourth connecting pipes are fixedly connected with a plurality of pressure release valves, and the bottoms of the pressure release valves are fixedly connected with bubble generators, so that along with the rise of the internal air pressure of the fourth connecting pipes, the air flow bursts through the pressure release valves and then is discharged through the bubble generators, and a large number of bubbles are generated; and in the process that the bubbles move towards the water surface, the water surface is stirred, the water surface is prevented from being frozen, the anti-freezing effect on the upstream side of the hyperbolic arch dam body is comprehensively achieved, and damage to the structure of the upstream side of the hyperbolic arch dam body caused by freezing is reduced.

The invention relates to an intelligent regulation and control system for multi-phase conversion of water quality of a gate-controlled river reach, in particular to the field of water treatment, and realizes accurate dynamic perception of the multi-phase conversion process of the water quality of the gate-controlled river reach by constructing a high-fidelity digital twinborn body and fusing a real-time data assimilation technology; by means of a time-space diagram neural network agent model based on an attention mechanism, the system can predict a complex time-space pattern of pollutant concentration field and phase evolution under different regulation and control strategies in an ultra-fast manner; on the basis, a multi-agent reinforcement learning algorithm is adopted to automatically generate a globally optimal gate group coordinated regulation scheme, and multiple targets of water quality improvement, ecological protection, engineering operation and the like are effectively coordinated; and finally, a theoretical strategy is reliably converted into a physical action through rolling optimization and a closed-loop execution mechanism, and adaptive adjustment can be performed according to environmental feedback, so that the emergency response speed of sudden water pollution events, the scientificity of regulation and control decision and the intelligent level of water quality management of the whole river network are comprehensively improved.

The invention relates to the technical field of fish protection in water conservancy projects, and in particular to a fish passing system suitable for a low-head overflow dam and an operation method thereof, comprising a lock chamber, an upper lock head and a lower lock head arranged at two ends of the lock chamber, gates being installed on the gate heads, and a diversion port being opened on the gates; a main rotating blade is fixedly arranged near the diversion port in the lock chamber, reciprocating components are symmetrically arranged on both sides of the main rotating blade, the reciprocating components include a rotating rod and a guide rod arranged in parallel, and the main rotating blade is connected to the rotating rods of the reciprocating components on both sides through a transmission component; a reciprocating plate is arranged on the rotating rod, the reciprocating plate is slidably sleeved on the guide rod, a rotatable flipping rod is arranged on the reciprocating plates opposite to each other on both sides, and a disturbance frame is fixed on the flipping rod; the flipping rod drives the disturbance frame to flip together, so that the disturbance frame is switched between a horizontal state and a vertical state; the water flow at the diversion port is subjected to power conversion, the reciprocating plate on the rotating rod is driven to reciprocate linearly, and the migratory fish is driven to move upward to the upstream waters by automatically flipping the disturbance frame.

A management system for use in relation to a marine ecosystem includes data collection devices and an agent, such as an autonomous water upwelling or downwelling device, capable of causing implementation of a computer-determined change in the ecosystem, wherein a computer is programmed to operate an intelligent feedback loop and iteratively receive and process gathered data; determining from reinforcement learning whether to implement a change to the ecosystem designed for its improvement, communicate instructions to the agent for implementing the change, observing effects of the change and determining whether a further change would benefit the ecosystem; wherein the change includes causing artificial introduction or removal of water from a depth in the ecosystem by upwelling or downwelling and the rate thereof. Also included is a method of acquiring knowledge of, and managing an ocean ecosystem using the above system.

The invention relates to the field of silt silt coast restoration, in particular to a protection system construction method suitable for an erosive silt silt coast, which adopts engineering measures such as a water-permeable offshore submerged embankment and a riprap protection bank on the seaside of a vegetation restoration area to dissipate waves, and adopts the riprap protection bank to prevent a high beach from being further eroded. By reserving the tide passageway, the vegetation restoration area is kept to be communicated with a water system of an open sea, more suitable conditions are provided for vegetation restoration, and the survival rate of plants for vegetation restoration on an erosive beach is increased. The degraded wetland habitat of an erosive beach is recovered, the structural integrity and the functional stability of a coastal zone ecological system are improved, the capability of resisting marine disasters is improved, and the regional ecological safety is guaranteed.

The invention discloses a method for rapidly optimizing the wave absorption performance of an underwater ecological submerged dike, and belongs to the technical field of ocean engineering, and the method comprises the following steps: taking an oyster reef as a research object, comprehensively considering marine environment factors and ecological submerged reef arrangement which influence the wave absorption performance of the ecological submerged reef, carrying out dimensionless processing, and determining seven independent variable parameters: relative water depth, water depth, water depth, water depth and water depth; the wave steep, the relative immersion depth of the oyster reefs, the relative length of the oyster reefs, the relative distance between the oyster reefs, the riverbed gradient and the number of the oyster reefs are determined. According to the method, nonlinear influences between all variable parameters are considered, a second-order optimal design model is suggested, an information matrix representing how changes of all factors affect variances and covariances of model parameters is calculated, and an optimal design scheme is obtained by maximizing eigenvalues of an inverse matrix. Compared with the traditional full-factor test design, the method has the advantages that the number of design groups is reduced on the premise of ensuring that the test combination is as comprehensive as possible, and the time of physical model experiment and numerical simulation calculation is greatly shortened.

The fish screen for a suction strainer includes at least one first plate having a central opening formed therethrough, a second plate, a helical spring, and a mesh bag. The helical spring has opposed first and second ends, with the first end secured to the at least one first plate and the second end secured to the second plate. The helical spring has first and second portions positioned respectively adjacent to the first and second ends. The second portion has a smaller diameter than a diameter of the first portion. The mesh bag releasably and removably covers and receives the at least one first plate, the second plate and the helical spring. The second portion of the helical spring is adapted for releasably holding a free end of a suction strainer received within an interior of the helical spring through the central opening of the at least one first plate.

The invention belongs to the technical field of ecological restoration and wetland engineering, and discloses an ecological corridor-based abandoned fishpond ecological restoration method, which comprises the following steps: S1, land forest restoration: planting saline-alkaline tolerant vegetation around an abandoned fishpond and in a land and abandoned fishpond transition area in a layered manner; s2, mangrove forest wetland construction: performing microtopography modification to adjust the bottom mud elevation, and planting mangrove forest plants in a layered manner; s3, ecological corridor construction: constructing an ecological corridor on one side of the abandoned fishpond and the land, and constructing an ecological corridor on one side of the abandoned fishpond and the ocean; s4, ecological monitoring and maintenance: carrying out hydrological, tidal and biological detection regularly; the three-dimensional ecological corridor system of'land forest-mangrove forest wetland-ocean 'is constructed, and the abandoned fish pond is transformed into the mangrove forest wetland, so that not only are biodiversity improvement and ecosystem connectivity realized, but also stable migration and inhabitation space can be provided for terrestrial and aquatic organisms.

The invention provides an arrangement method of a steel fishway structure capable of automatically pulling and stretching along with water level changes. The arrangement method comprises the steps that the water level difference of an inlet and an outlet of a fishway is monitored in real time; the buoyancy driving assembly is triggered according to the water level difference to drive the steel fishway subsections to move along the rails; calculating the telescopic length based on the water level difference and the fishway base length to ensure that the gradient is within the design range; the track motor is controlled to adjust the cable-stayed angles and gaps of the fishway sections; the gradient error is corrected in real time through the tilt angle sensor; the distribution density and the opening-closing angle of the guide plates are dynamically adjusted according to the flow speed and the water depth, and vortex is inhibited; the water temperature change is monitored, the thermal deformation compensation amount is calculated, and deformation is absorbed through the elastic sealing assembly. The fish passing rate can be increased, the adaptability and stability of the structure are enhanced, and the device is suitable for complex hydrological environments.

The invention discloses a dam underwater seepage point detecting and plugging integrated system and method, and relates to the field of dam safety maintenance. The dam underwater seepage point detection and plugging integrated system comprises a suspension frame and further comprises a sleeve fixedly connected to the suspension frame; the piston disc is connected in the sleeve in a sliding manner; one end of the spring is fixedly connected with the inner wall of the sleeve, and the other end of the spring is fixedly connected with the piston disc; through the synergistic effect of the sealing air bag, the spring piston disc and the conducting ring warning indicator, efficient and reliable plugging is achieved, the sealing air bag expands to fill gaps, water seepage is isolated, equipment is fixed, and the impact resistance is enhanced through the L-shaped design; the spring is matched with the piston disc, so that the gap is uniformly filled with polyurethane, the piston disc moves to supply air to the air bag, and the whole-course sealing stability is ensured; the conducting ring and the warning indicator feed back the plugging state in real time, diving operation of personnel is avoided, and efficiency and safety are improved.

The invention relates to the field of migration fishways, in particular to a fishway structure and a construction and design method. The fishway structure comprises a migration channel, a plurality of rows of pile structures are arranged at the bottom of the migration channel, each row is provided with at least two pile structures at intervals, and the adjacent rows of pile structures are staggered in the length direction of the migration channel. According to the fishway structure, the pile structures are arranged at the bottom of the migration channel, the adjacent rows of pile structures are staggered in the length direction of the migration channel, climbing assistance is provided for eels, and meanwhile, compared with a bristle base, the pile structures do not have bristles, so that the situation of chipping blockage does not exist, and cleaning is easy. Meanwhile, the pile structure can increase friction along the way, water flow hedging and diffusion are used for dissipating energy, and the effects of improving the flow state and reducing the flow speed of the migration channel are achieved.

The utility model provides a leaking stoppage drainage device for water conservancy project management, which comprises a drainage dredging pipe seat, a plugging expansion seat and a controllable valve, the plugging expansion seat and the controllable valve are fixedly arranged on the drainage dredging pipe seat, the controllable valve is communicated with the drainage dredging pipe seat, and the plugging expansion seat is fixedly arranged on the drainage dredging pipe seat. The drainage dredging pipe seat is used for controlling drainage of liquid in the drainage dredging pipe seat; an expansion type plugging and sealing mechanism is adopted, the air bag is rapidly expanded by injecting cement paste, the air bag is tightly attached to a leak, and efficient plugging is achieved. By means of the design, direct contact between internal cement and external water flow is avoided, the scouring influence is reduced, and the durability and reliability of the plugging effect are improved. In addition, the device is high in flexibility and suitable for loopholes of various shapes and sizes, and a powerful guarantee is provided for safe and stable operation of water conservancy projects.

The utility model relates to the field of anti-freezing devices, in particular to a gate anti-freezing device which comprises a bottom plate, a gate body is movably installed at the upper end of the bottom plate, a main beam is fixedly installed at the upper end of the gate body, water pumps are fixedly installed on the two sides of the upper surface of the main beam, and turbulent flow mechanisms are fixedly installed at the upper ends of the water pumps. A boss is fixedly installed on the rear surface of the main beam, and a fixed base is fixedly installed on the upper surface, located under the boss, of the bottom plate. A turbulent flow mechanism is adopted, a water pump conveys water flow on the side with the high water level of a reservoir into a drainage main pipe through a water suction pipe, water flow scouring is conducted on the two sides of the gate body through spray pipes, and the water body is kept moving to avoid icing. When the air temperature is too low, the gate body is frozen, the ice breaking mechanism slidably installed at the lower end of the main beam is used for breaking, the floating barrels arranged on the two sides of the floating plate guarantee that the ice breaking mechanism is kept at the upper end of the water surface, the influence of the water surface height is avoided, and ice breaking operation can be continuously conducted.

The invention provides fish passing detection equipment suitable for turbid water quality, and relates to the technical field of fish detection. The fish passing detection equipment suitable for the turbid water quality comprises a migration channel and a vertical seam fishway arranged in the migration channel. According to the device, the device rises above the water surface, fish and water are separated, then fish school biological characteristic data are collected, the sampling accuracy is guaranteed, the approximately closed structures of the uplink monitoring system and the downlink monitoring system isolate the interference of external environment light to the collection definition, the light supplementing lamp provides a stable light source, and the detection accuracy is improved. After the collection of the biological characteristic data of the fish school is completed, the fish school is placed into the fish passing channel again through the ascending fish placing pipe and the descending fish placing pipe, and the tail end of the first tail pipe of the ascending fish placing pipe and the tail end of the second tail pipe of the descending fish placing pipe extend towards the bottom of the fish passing channel respectively, so that the fish is not hurt in the process of entering water.

A leaching and desalinating system for sandy soil in estuarine land reclaimed by sand blowing before planting greenery is provided. The leaching and desalinating system comprises a water pump and pipe assembly, a freshwater storage tank and a main diverting and draining channel. The water pump and pipe assembly lifts freshwater from a river to the freshwater storage tank through a water delivery pipe, multiple infiltration parts in which greenery is planted are provided on the waterside slope, the infiltration parts are connected to each other via multiple drainage infiltration channels. The present disclosure can quickly desalinate the sandy soil in land reclaimed by sand blowing at a low cost, improve the physicochemical properties of the soil, and provide a basic guarantee for the subsequent greenery planting on the sandy soil in land reclaimed by sand blowing.

The invention discloses a backwater side seepage drainage and pressure reduction anti-seepage method based on a built sandy soil embankment foundation, and relates to the field of hydraulic engineering embankment seepage control. The technical problems that in existing sandy soil embankment foundation seepage drainage design, due to dynamic change of soil layer permeability, the drainage effect is poor, and slope stability is difficult to guarantee are solved. The method comprises the following steps: establishing a seepage field model through a three-stage hydraulic fracture test, and measuring a permeability coefficient, critical pressure and a failure criterion; the groove is dynamically excavated in three stages, the excavation depth and the slope gradient are corrected in real time according to actually measured data, and the shape of the groove is verified through a model; and finally, laying an inverted filter layer, a drainage body and an anti-scouring layer, wherein the permeability coefficient of the inverted filter layer and the aperture ratio of the drainage body are dynamically adjusted according to actually measured data. According to the method, accurate control over seepage drainage and pressure reduction of the sandy soil embankment foundation is achieved through dynamic coupling of testing, construction and a numerical model, and the method is mainly used for seepage treatment of the backwater side of a built embankment and slope stabilization and reinforcement.

The invention relates to the technical field of drainage structures, in particular to a drainage method for hydraulic engineering construction. The system comprises a sedimentation module and a water collection module, the sedimentation module comprises a sedimentation tank, the water collection module comprises a water collection tank, a plurality of communication mechanisms are communicated between the sedimentation tank and the water collection tank, each communication mechanism comprises two communication holes formed in the side walls of the sedimentation tank and the water collection tank at the same height, and the communication holes in the side walls of the sedimentation tank are located in the lower portion of the sedimentation tank; according to the drainage method for hydraulic engineering construction, the sedimentation tank is used for settling silt in collected water, and then the interception mechanism is used for filtering suspended impurities mixed in the water; when suspended impurities are accumulated in the intercepting plate, the intercepting plate slides up and down in the communicating pipe, so that the filtering effect can be kept while the accumulated impurities are removed; in the process that water flows through the communicating pipe, the gravitational potential energy difference of water level change can prevent silt from blocking the intercepting plate, and the intercepting plate can prevent impurities from entering the water collecting tank.

The invention provides a hydraulic automatic fishway device, and relates to the technical field of hydraulic engineering, the hydraulic automatic fishway device comprises an arc fishway track, a multifunctional structure is rotatably mounted on the outer side of the arc fishway track, the multifunctional structure comprises a synchronous belt, a plurality of fish collecting plates are arranged on the surface of the synchronous belt, and each fish collecting plate is clamped with the synchronous belt; a fish collecting groove is formed in each fish collecting plate, a fish luring warm-color lamp strip is arranged in each fish collecting groove, through a multifunctional structure, when water flow impacts the water turbine from bottom to top, the water turbine rotates under the radial force of the water flow, so that radial force is generated on the fixing rod to rotate in the fixing frame, and meanwhile, the water flow impacts the water turbine through the water flow; the rotation of the fixing rod enables the driving bevel gear to rotate and to be engaged with the driven bevel gear, so that the driven bevel gear rotates, and then the rotating cross rod is controlled to drive the first gear to rotate and to be engaged with the inner tooth set, so that the synchronous belt can drive the fish collecting plate and the fish collecting groove to rotate, fish at the fishway inlet is brought to the upstream, and migration of the fish is helped.

The invention relates to the technical field of water conservancy project fish protection, in particular to a fish passing system suitable for a low-water-head overflow dam and an operation method thereof.The fish passing system comprises a lock chamber, an upper lock head and a lower lock head, the upper lock head and the lower lock head are arranged at the two ends of the lock chamber, gates are installed on the lock heads, and flow guide openings are formed in the gates; a main rotating blade is fixedly arranged at the position, close to the flow guide opening, in the lock chamber, reciprocating assemblies are symmetrically arranged on the two sides of the main rotating blade, each reciprocating assembly comprises a rotating rod and a guide rod which are arranged in parallel, and the main rotating blade is in transmission connection with the rotating rods of the reciprocating assemblies on the two sides through transmission assemblies. Reciprocating plates are arranged on the rotating rods, the reciprocating plates are arranged on the guide rods in a sliding and sleeving mode, rotatable overturning rods are arranged on the opposite reciprocating plates on the two sides, and disturbance frames are fixedly arranged on the overturning rods; the overturning rod drives the disturbance frame to overturn together, so that the disturbance frame is switched between a horizontal state and a vertical state; power conversion is conducted on water flow of the flow guide opening, the reciprocating plate on the rotating rod is driven to do reciprocating linear motion, and the migratory fishes are driven to ascend to an upstream water area through the automatic overturning disturbance frame.

The invention discloses a permeable hinged type ecological slope protection structure for sheltering benthonic animals in a canal. The permeable hinged type ecological slope protection structure is formed by distributing a plurality of slope protection blocks on a bank slope in an array mode. The slope protection block body is of an integrated structure and comprises an upper halfpace section and a lower rectangular enclosure frame section. An inner cavity of the slope protection block body is formed by a space enclosed by the lower rectangular enclosure frame section and a halfpace-shaped cavity in the upper halfpace section; lateral channels communicating with the inner cavity are formed in the left side and the right side of the slope protection block body, and the lateral channels on the two sides directly face each other. Through holes communicated with the inner cavity are formed in the top surface, the front side surface and the rear side surface of the upper halfpace section; the front side and the rear side of the lower rectangular enclosure frame section are respectively provided with a linkage hinge bayonet and a linkage hinge clamping block which are matched with each other; an induction adhesion layer is arranged on the top surface of the upper halfpace section; in the shoreline direction, the lateral channels of the adjacent slope protection block bodies are aligned and communicated; the adjacent slope protection blocks are clamped and matched in the direction perpendicular to the shoreline. According to the method, a relatively stable near-bottom shielding and slow-flow sheltering space can be formed, and habitat communication and attachment induction interface construction are considered.

The invention discloses a cascade reservoir flood control water level combined application scheduling method and scheduling system, and relates to the technical field of cascade reservoir scheduling, and the method comprises the following steps: dividing into a plurality of sub-regions according to an administrative region, determining a sub-reservoir corresponding to each sub-region, and collecting the rainfall and historical flood discharge data; analyzing the water storage capacity of each sub-region at the moment corresponding to the historical data to form a training data set; constructing a flood season flood discharge prediction model, and obtaining the target flood discharge flowing into the sub-reservoir by using the prediction model; analyzing the water level change in the flood season according to the target flood discharge amount, and judging whether scheduling is needed; and if scheduling is needed, determining a drainage flow combination of each sub-reservoir, setting a constraint condition, and performing optimization through a multi-target genetic algorithm to obtain an optimal drainage flow scheme meeting constraints. According to the scheme, the scientificity, the accuracy and the intelligent level of combined dispatching of the cascade reservoirs are remarkably improved.

The invention provides a winter protection device and method for a steel pipe type water level gauge platform, and the protection device comprises a protection steel ring which sleeves a steel pipe and can slide up and down along the steel pipe along with the height of the water level; the outer wall of the protective steel ring is connected with a first floating body, so that the protective steel ring floats on the water surface; the air bag mechanism is arranged on the steel pipe in a sleeving mode and located in the protective steel ring; the air bag mechanism can float on the water surface and can slide up and down along the steel pipe along with the water level change; the air bag mechanism can be inflated or deflated so as to realize volume change; an annular protection area is formed in the area between the air bag mechanism and the protection steel ring, and the air bag mechanism is connected with an inflation and deflation executing mechanism with a controller to achieve inflation and extrusion of the annular protection area. The invention has the advantages of simplicity, high efficiency, low cost and high practicability, and can play a good protection role.

The present invention discloses a double-layer overpass fishway structure, belonging to the field of fishway design in water conservancy projects. The double-layer overpass design enables an upper overflow and a lower submerged flow. The water flow structure within the pool chamber is diverse and can adapt to different water depths, creating favorable hydraulic conditions for fish with different preferences. The double-layer overpass fishway comprises: a trumpet-shaped inlet section, a hump-shaped weir transition section, a double-layer overpass pool section (including a lower disc-shaped channel section and an upper overflow section), and a resting pool section. The hump weir section divides the pool chamber into an upper overflow area and a lower submerged outflow area. The formation of the upper overflow area draws jumping fish into the upper overflow weir section, while the lower submerged flow area is used to attract bottom-dwelling fish and allow them to smoothly swim upstream through the disc-shaped channel section. The arrangement of the resting pool section creates a low-flow zone to allow fish to recover their strength, thereby allowing them to successfully complete their upstream migration and ensure the stability of the river ecosystem.

The invention provides a hydropower station ecological flow discharge control method and device, and the method comprises the steps: determining a to-be-analyzed riverway corresponding to a target hydropower station, and determining the riverway elevation and target riverway creatures corresponding to the to-be-analyzed riverway; a hydrodynamic model corresponding to the to-be-analyzed river channel is established according to the river channel elevation, biological environment elements corresponding to the target river channel organisms are obtained, and the biological environment elements comprise the flow velocity, the water depth, the water temperature and dissolved oxygen; according to the hydrodynamic model, the at least one reference discharge control parameter and the biological environment elements, calculating a biological inhabitation river area value corresponding to each reference discharge control parameter; and determining a target discharge control parameter according to the biological inhabitation river area value corresponding to each reference discharge control parameter, and controlling the ecological flow discharge of the target hydropower station based on the target discharge control parameter. By means of the method, water resources can be fully utilized, the ecological environment in the riverway can be protected, and aquatic organisms in the riverway can be effectively protected.

The invention discloses a reservoir desilting body layout scheme evaluation method based on siltation risk characteristics, belongs to the technical field of reservoir desilting, and can solve the problem that an existing method is low in evaluation precision and accuracy. The method comprises the following steps: S1, determining a plurality of subareas of a reservoir according to historical operation data of the reservoir, and determining sedimentation risk characteristics and sediment distribution characteristics of each subarea in each of a plurality of continuous time periods; s2, according to the siltation risk characteristics and the sediment distribution characteristics, constructing a sediment distribution prediction model of the reservoir; and S3, utilizing the sediment distribution prediction model to predict the sediment distribution situation after the reservoir implements the desilting body layout scheme, and evaluating the desilting body layout scheme according to the sediment distribution situation. The method is used for evaluating the reservoir desilting body layout scheme.