6712results about "Barrages/weirs" patented technology

To provide a water gate opening / closing system and method of a hydraulic power plant based on an unmanned steering water gate opening / closing machine which enables the water gate opening / closing machine to open / close a water gate and simultaneously and automatically update water gate database, on the basis of the system, and improves operation efficiency, safety and a maintenance management level of a hydraulic power plant.SOLUTION: The system includes a water gate opening / closing machine travel automatic positioning system, a water gate opening / closing machine automatic identification and collision prevention system, a water gate automatic locking system, a beam gripping and swinging prevention and automatic pin insertion system, an image identification system, a water gate position arrival integral determination system, a water gate on-line identification system, and a water gate opening / closing machine safety protection system.SELECTED DRAWING: Figure 1

The invention relates to the technical field of fishways, in particular to a canal fishway structure, construction and design method.The canal fishway structure, construction and design method comprises the following steps that S1, a hub fishway database is established, the swimming capacity of target fishes passing through a fishway is evaluated, and the migration ecological characteristics of the fish passing objects are determined; s2, designing a fishway scheme, and determining a fishway structure preliminary design scheme; s3, designing a fishway engineering local section physical model, and performing a fishway engineering local section physical model test to obtain a pool chamber structure recommendation scheme located at the upstream of the eel way in the vertical seam type fishway; and S4, establishing a fishway overall model, and performing a fishway overall model test to determine a fishway overall structure scheme. According to the design method of the canal fishway, a theoretical basis is provided for arranging an eel fishway suitable for migration of eels and eriocheir hepuensis and a vertical seam type fishway suitable for migration of squaliobarbus curriculus and dace, and then migration channels are provided for the eels, the squaliobarbus curriculus, the sinilabeo, the river perches, the eriocheir hepuensis and the like.

The invention relates to the technical field of water conservancy and hydropower, in particular to a corridor type supersaturated gas quick release device which comprises a concrete bottom plate, a plurality of concrete enclosing walls are arranged on the top face of the concrete bottom plate, and the concrete enclosing walls are sequentially arranged at intervals from inside to outside; a clearance between every two adjacent concrete enclosing walls forms a corridor area; a plurality of water pressure and air pressure damage assemblies are arranged in the innermost circle of concrete enclosing wall, a plurality of energy dissipation bodies are filled in the innermost circle of concrete enclosing wall, and the water pressure and air pressure damage assemblies are distributed on the top face of the concrete bottom plate in an array mode; a water passing hole is formed in each circle of concrete enclosing wall; a plurality of flow limiting plates are arranged in the corridor area at intervals, and flow passing structures are arranged on the flow limiting plates. By the adoption of the structure, multi-flow-state distribution areas such as turbulent flow, backflow and rotational flow can be formed, the medium contact area of supersaturated gas is greatly increased, precipitation of the supersaturated gas is accelerated, and positive significance is achieved for protecting aquatic organisms and fish resources of downstream rivers.

The invention provides a concentric circle filling device and an application method in mass concrete crack control, and belongs to the technical field of hydraulic structures. The concentric circle filling device comprises a pipe body structure, the pipe body structure comprises an outer pipe body and an inner pipe body, the outer pipe body and the inner pipe body are coaxially arranged in a sleeved mode, and an annular area between the outer wall of the inner pipe body and the inner wall of the outer pipe body serves as a first storage space; an inner cavity of the inner tube body serves as a second storage space; the inner tube body is sleeved with an inflatable annular air bag, and when the annular air bag is not inflated, the annular air bag can slide up and down along the inner tube body; after the annular air bag is inflated, one end of the first storage space can be completely sealed and plugged; an air bag ball is arranged in the inner tube body, and after the air bag ball is inflated, one end of the second storage space can be completely sealed and plugged. The method is implemented based on the concentric circle filling device and is applied to mass concrete crack control. Cracks generated by the gate pier can be effectively controlled, and meanwhile the integrity of the structure is improved.

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 field of seawalls, in particular to a marine ecological restoration seawall based on a sand beach and a construction method thereof. The seawall comprises three defensive lines, the first defensive line serves as a wave dissipation platform by laying an artificial sand beach, and an original wave wall and a riprap protection bottom are transformed to construct a first-stage wave wall; curbs are heightened and transformed into secondary wave walls by the middle road defense line, and a levee top road is laid to serve as a wave dissipation platform; a flower bed is transformed on a rear defense line, a low retaining wall is a three-stage wave wall, a drainage system is arranged, and residents are protected by combining buildings behind the road and flood prevention measures. The three-dimensional defense line can achieve wave dissipation and damp blocking, and the wave overtopping amount is reduced. The method aims at the shoreline with the requirement for the dike crest elevation and insufficient moisture-proof capacity in marine ecological restoration, and is particularly suitable for constructing a mature urban dike. The damp-proof flood-proof seawall aims at keeping the original appearance of the seawall as much as possible, reducing damage to existing roads and environments, improving the damp-proof capacity, promoting organic fusion of the seawall and surrounding characteristics and building the damp-proof flood-proof seawall for marine ecological restoration.

According to the seawall ecological slope protection structure and the construction method thereof, the seawall ecological slope protection structure comprises a seawall body, the seawall body is filled with mud filling pipe bags, a wave wall is arranged at the top of the seawall body, a bagged gravel layer is laid on the slope surface of the seawall body, a polyurethane gravel protection slope is laid on the bagged gravel layer, and a wave dissipation platform is arranged on the slope surface; according to the seawall, the structural porosity of the seawall can be effectively improved, energy transportation and material exchange between the ocean and the land can be continued, meanwhile, the wave dissipation effect is good, and the structure is resistant to corrosion; the method is simple in form and high in universality, the construction step of cast-in-place concrete of a traditional seawall concrete slope protection structure is basically avoided, the site construction period and maintenance period are greatly shortened, the porosity of the polyurethane gravel slope protection is high, plant growth is facilitated, and the ecological property of the seawall structure is improved; and a good ecological effect can be created.

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 relates to a novel weir flow bottom hole combined fishway with diversion piers and a vortex recognition method of the novel weir flow bottom hole combined fishway, and belongs to the field of hydraulic engineering and ecological engineering. On the basis of a traditional weir flow bottom hole combined fishway, a traditional thin-walled weir is bent in the horizontal direction by improving the form of the weir, then the length of the overflow front edge is increased, and a diversion pier is additionally arranged at an outlet of a bottom hole. The combination of the weir and the bottom hole can effectively change the proportion of overflow on the weir and overflow at the bottom hole, and can effectively improve the water flow state in the fishway pool chamber. Besides, on the basis of the idea that the vorticity is larger than deformation, the vorticity is further decomposed into a rotating part and a non-rotating part through an omega vortex recognition method, and then vortexes in the fishway are effectively recognized. Physical model tests and numerical simulation prove that the device can effectively improve the water flow environment in the fishway pool chamber, and can be popularized and applied to actual engineering.

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 reservoir flood control dispatching, and discloses a dam hydraulic opening and closing control method, device and equipment and a storage medium. The method comprises the steps that multi-source hydrological data, weather forecast information and unit operation states of a current reservoir are collected; inputting the multi-source hydrological data and the weather forecast information into a preset hydrological prediction model, and outputting a hydrological prediction result; based on the hydrological prediction result and the real-time reservoir area water level and the unit operation state in the multi-source hydrological data, a gate opening control instruction is generated through a reservoir optimization scheduling model; and a hydraulic opening and closing system is adjusted according to the gate opening control instruction, and the current reservoir flood discharge gate opening is controlled. According to the method, data such as upstream incoming water, reservoir area water level and water consumption are utilized, weather forecast information is combined, a hydrological prediction model is constructed, a reservoir dispatching scheme is optimized according to a hydrological model prediction result, the reservoir area water level and unit operation conditions, and on the premise that flood prevention safety is guaranteed, reservoir dispatching is optimized, the reservoir area water level is automatically adjusted, and power generation benefits are 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.

The invention relates to the technical field of fishways, in particular to a fishway overall model test method which comprises the following steps: S1, establishing a fishway overall model design scheme based on a preliminary design scheme; s2, a fishway overall model is manufactured based on the fishway overall model design scheme, the fishway overall model is designed to be a normal model, the fishway overall model is designed according to a gravity similarity criterion, and geometric similarity, water flow motion similarity and dynamic similarity checking is conducted on the fishway overall model design scheme; and S3, performing a fishway overall model test on the basis of the fishway overall model, and optimizing the fishway overall arrangement structure scheme so as to obtain a final fishway overall structure scheme. According to the fishway overall model test method, the fishway overall arrangement structure scheme is optimized, so that the final fishway overall structure scheme is obtained, and a theoretical basis is provided for fishway overall optimization.

The invention provides a structure capable of controlling a large-volume water gate crack and a construction method thereof, and belongs to the technical field of water gates. The structure comprises a gate bottom plate and a gate pier which are formed by pouring concrete, and the gate pier is arranged above the gate bottom plate; hole cavities are at least formed in the gate piers and reserved in the concrete pouring process. The hole cavity is used as a self-constrained stress hole; and the tough material is used for absorbing stress, is filled in the pore cavity and is connected with the inner wall of the pore cavity. The method comprises the steps of S1, construction preparation; s2, foundation treatment; s3, gate bottom plate construction; s4, gate pier construction: S41, construction lofting; s42, gate pier reinforcing steel bars are bound and installed; s43, a gate pier formwork is erected above the gate bottom plate; s44, a hole forming device is installed at the designed position; s45, concrete pouring, vibrating and curing are conducted; and S46, after initial setting of the concrete, the hole forming device is pulled out of the pipe, and a formed hole cavity is filled with a tough material. The sluice pier crack can be effectively controlled, and the use durability and safety of the sluice are improved.

The invention belongs to the technical field of water conservancy gates, and discloses a water conservancy project flood prevention gate, method and system.The water conservancy project flood prevention gate comprises two barrier gate cement foundations, an anti-blocking mechanism and a cleaning mechanism are arranged on the two barrier gate cement foundations, and the anti-blocking mechanism comprises door bodies arranged on the sides, close to each other, of the two barrier gate cement foundations; an electric gate is slidably mounted on the inner wall of the front face of the gate body, anti-blocking assemblies are arranged at the tops of the two barrier gate cement foundations correspondingly, the electric gate is driven by a motor to ascend and descend, and automatic reciprocating motion of a cleaning strip on a sliding frame is achieved through meshing transmission of a tooth groove and a gear and the combined design of a connecting rod mechanism; according to the filter screen cleaning device, impurities attached to the filter screen are effectively removed, the filter screen is prevented from being blocked, the cleaning efficiency and the automation degree are greatly improved, frequent manual intervention is not needed, the labor intensity is reduced, meanwhile, potential risks caused by blocking of the filter screen are reduced, and it is guaranteed that water flows smoothly.

The utility model relates to an ecological seawall structure, which belongs to the technical field of bank protection engineering and comprises a seawall foundation, the seawall foundation comprises a slope top and a slope body, and a retaining wall structure is arranged at the joint of the slope top and the slope body. An arc-shaped wave dissipation ridge is arranged at the position, spaced by a certain distance from the retaining wall structure, of the top end of the slope body, a cushion layer is laid at the position, located between the arc-shaped wave dissipation ridge and the retaining wall structure, of the top end of the slope body, and the cushion layer comprises a dry stone cushion layer and a broken stone cushion layer which are sequentially arranged from top to bottom. A first block stone cushion layer is laid at the position, located on the side, away from the retaining wall structure, of the arc-shaped wave dissipation ridge, of the top end of the slope body, extends to the bottom of the slope body and further extends outwards to be connected with a second horizontal block stone cushion layer, and a first concrete retaining wall is arranged at the joint of the first block stone cushion layer and the second block stone cushion layer. The accropode is laid at the top end of the second block stone cushion layer and located on the outer side of the first concrete retaining wall. The safety of the seawall can be effectively guaranteed, and the stability of the seawall structure is guaranteed.

The invention provides a hydropower station water temperature intelligent regulation and control system and method based on stoplog gate layered water taking, and aims to solve the problems of insufficient tail water temperature regulation and control capability, poor adaptability and relatively high energy consumption in a traditional fixed depth water taking mode. The system comprises a layered water taking device, a water temperature monitoring system, a data processing platform, an intelligent control module and a distributed intelligent monitoring network. The layered water taking device achieves dynamic water taking of water bodies of different depths of a reservoir through a modularized stoplog door and an opening and closing control system. The water temperature monitoring system and the distributed intelligent monitoring network obtain water temperature data and other environmental parameters of water in front of and at the tail of the reservoir in real time; the data processing platform combines historical data and real-time monitoring data to analyze thermocline features and change trends; and the intelligent control module optimizes a regulation and control strategy based on an AI algorithm, and dynamically adjusts the opening and closing height and frequency of the stoplog gate. And through a closed-loop feedback mechanism, a regulation and control scheme is optimized in real time, and the tail water temperature regulation and control precision is improved.

The invention discloses a closing method of a super-large-span shore control floating body miter gate tide gate, which comprises the following steps: firstly, opening a rotary gate, emptying a medium in a water stop bag, enabling a supporting rod to be in a contraction state, forming an overflowing channel at the bottom of a gate body, and then enabling the gate body to rotate towards the center of a river channel through a balance opening and closing device, and then, the supporting rod extends out to be supported on the gate bottom plate, the water stop bag is inflated to block the overflowing channel, and finally, the rotary gate is closed, so that the closing operation is completed. The tidal gate adopting the gate-in-gate design has the advantages of being stable in structure, flexible to open and close, safe in operation, convenient and fast to overhaul and the like, and the problem of damming and heeling in the opening and closing process of the floating body miter gate is solved.

The invention relates to the technical field of hydraulic engineering, and discloses an automatic desilting device for a hydraulic engineering gate, which comprises a gate plate and a desilting unit arranged on the gate plate, and the desilting unit comprises a driving part arranged in the gate plate and a cleaning part arranged on the surface of the gate plate. The driving component comprises mounting grooves formed in the two sides of the interior of the gate plate, two mounting plates arranged in the two mounting grooves correspondingly, and two sleeves arranged at the lower ends of the two mounting plates correspondingly. By arranging the driving part, when an engineer opens the gate for dredging, the rotating rod is driven to rotate through a mixture of flowing river water and sludge, and then the cleaning part is driven to clean sludge attached to the surface of the gate at the same time, so that the purpose that the sludge accumulated below the gate is cleaned and the cleaning efficiency is improved is achieved. And sludge attached to the surface of the gate can be synchronously cleaned, manual participation is not needed, and the gate sludge cleaning efficiency and quality are effectively improved.

The invention relates to the technical field of water level monitoring and early warning, in particular to an intelligent reservoir spillway water level monitoring and spillway early warning system, which comprises an anti-interference water level sensing module, an anti-siltation sensing array is arranged on a key section of a spillway, and the key section comprises a curve section and a gate section; the dynamic hydraulic twinning module is used for processing through a lightweight fluid network algorithm on the basis of the water surface transverse slope, the absolute water level and the gate vibration displacement in combination with a hydraulic BIM model; the edge cloud cooperative flow calculation module comprises an edge node and a cloud server; the risk self-adaptive early warning module is used for executing early warning when the calibrated real-time spilling volume breaks through a spilling threshold value; according to the method, the flow calculation error under the high turbulence working condition is remarkably reduced, the accuracy of flood discharge amount calculation is effectively improved, and it is ensured that flood discharge control is more accurate especially under the scene that the curve flow state is complex and the gate opening degree changes remarkably.

The invention provides a large-span folding arc-shaped tide-blocking floating body gate structure and a using method, the large-span folding arc-shaped tide-blocking floating body gate structure is in a double-door form, and the large-span folding arc-shaped tide-blocking floating body gate structure comprises two gate libraries, the gate units are divided into an upper layer and a lower layer and can be folded in the gate chamber, each gate unit comprises an upper-layer tide-blocking floating body gate, a lower-layer tide-blocking floating body gate and an arc-shaped foundation, and the radius of the upper-layer tide-blocking floating body gate is larger than that of the lower-layer tide-blocking floating body gate; one end of the upper-layer tide-blocking floating body gate and one end of the lower-layer tide-blocking floating body gate are both hinged into a stress abutment on the shore side and are concentrically arranged in an ectopic mode, the arc-shaped foundation extends from the gate reservoir to the center of a river channel, and the upper-layer tide-blocking floating body gate and the lower-layer tide-blocking floating body gate rotate, move and unfold from the edge of the gate reservoir to the center of the river channel around hinge points of the upper-layer tide-blocking floating body gate and the lower-layer tide-blocking floating body gate. During tide blocking operation, the arc-shaped foundation, the upper-layer tide blocking floating body gate, the lower-layer tide blocking floating body gate and the stress abutment on the shore side are combined to achieve the tide blocking function.

A gate linkage control method and device and a parallel water supply and power generation system are provided. The method comprises the following steps of: acquiring current gate opening degree information of the parallel water supply and power generation system and a current water level of a third trunk canal, the current gate opening degree information comprising current first gate opening degree information and current second gate opening degree information; determining a target gate linkage control strategy of the parallel water supply and power generation system according to the current gate opening degree information of the parallel water supply and power generation system and the current water level of the third trunk canal; and controlling a gate opening degree of a target gate according to the target gate linkage control strategy of the parallel water supply and power generation system.

The invention provides a self-adaptive anti-heeling oversize floating gate driving device and method. The self-adaptive anti-heeling oversize floating gate driving device comprises a connecting support arm, a driving system, an anti-heeling system and a rail system. The connecting support arm comprises a triangular truss, the vertex of one side is fixedly connected with the two banks through center spherical hinges, the two vertexes of the other side are hinged to the floating gate through door connecting support hinges, and four sets of pushing sliding blocks are symmetrically arranged on the two sides of the connecting support arm. The driving system comprises a frame, a driving mechanism, an exposed gear and a horizontal guide wheel; a driving system supporting wheel and a horizontal elastic support are arranged at the bottom of the frame; the anti-heeling system comprises a left / right side portal frame, a left / right side oil cylinder and a pushing slide rail; the track system comprises a gear ring, a horizontal guide rail and a supporting wheel track which are distributed in an arc shape with the center spherical hinge as the circle center. Rapid, stable and accurate opening and closing operation of the oversize floating gate under the working conditions of long stroke and large load can be achieved.

The invention discloses a hydropower station ecological flow discharge system and discharge method, the system is applied to a pressure steel pipe diversion type hydropower station, the system comprises a bypass pipe, the inlet end of the bypass pipe is connected with a pressure steel pipe, and the bypass pipe is used for draining water flow in the pressure steel pipe; the water measuring weir is connected with the outlet end of the bypass pipe, and the water measuring weir is used for discharging ecological flow; the monitoring module is arranged on the measuring weir, and the monitoring module is used for monitoring the water level data of the measuring weir; the control valve is arranged on the bypass pipe, and the control valve is used for adjusting the water flow of the bypass pipe according to the analysis result of the water level data so as to control the flow discharge amount of the measuring weir. According to the embodiment of the invention, the ecological flow discharge of the pressure steel pipe diversion type hydropower station can be realized, and the stability and ecological benefits of the ecological flow discharge are improved. The method can be widely applied to the technical field of water conservancy and hydropower.

The invention relates to a water ecological restoration system and a restoration method, and belongs to the technical field of water treatment. According to the water ecology restoration system, a retaining wall is arranged on the downstream of the junction of a branch and a river channel, and the river channel is divided into a restoration flow channel and a main flow channel through the retaining wall; a water inlet adjusting mechanism, a desilting cavity, a filter dam, a biochemical treatment cavity, a first overflow dam, an oxygenation cavity, a second overflow dam, a biological protection cavity and a water outlet adjusting mechanism are sequentially arranged on the remediation flow channel from upstream to downstream, a buffer pond is arranged on the river bank side of the biological protection cavity, a planting floating bed is arranged in the biological protection cavity, hygrophytes are planted on the planting floating bed, and a water outlet adjusting mechanism is arranged on the water outlet adjusting mechanism. Submerged plants are arranged at the bottom of the buffer pond. According to the device, aquatic organisms such as fishes can be sheltered, water can be purified, the water ecological restoration effect is good, facilities can be prevented from being destroyed by flood, and the aquatic organisms are protected during flood discharge.

The invention provides a flow-induced vibration analysis method for a large top-exposed plane gate with high submerging water depth. The flow-induced vibration analysis method comprises the steps that a hydraulic parameter set and a gate structure parameter set corresponding to an ultrahigh submerging ratio submerging outflow working condition are obtained; constructing a three-dimensional fluid-structure interaction numerical model comprising a gate solid domain and a water flow fluid domain based on the hydraulic parameter set and the gate structure parameter set; calculating a pressure pulsation load component and a vortex-induced vibration load component distributed on the surface of the gate through the three-dimensional fluid-solid coupling numerical model; inputting the pressure pulsation load component and the vortex-induced vibration load component into a gate structure dynamics solver for transient response analysis, and outputting a gate vibration displacement distribution map and a key component dynamic stress data set; and generating a flow-induced vibration safety performance evaluation conclusion according to the vibration displacement distribution map and the key component dynamic stress data set. The operation reliability and safety of the large top-exposed plane gate under complex working conditions can be improved.

The invention relates to the technical field of flood discharge gate equipment, in particular to a flood discharge gate equipment operation fault diagnosis method, which comprises the steps of extracting and fusing first target data; analyzing and calculating the extracted and fused first target data, and generating second target data; and inputting the second target data into a historical database for calculation, and verifying the operation state of the gate equipment. The method has the beneficial effects that a multi-source heterogeneous data fusion technology is utilized, various internal parameters such as structural stress, deformation and vibration characteristics as well as hydraulic hoist system pressure, radial gate online vibration monitoring signals and water temperature signals are comprehensively considered, so that the actual operation state of equipment is more comprehensively reflected, the fault diagnosis accuracy is remarkably improved, and the fault diagnosis efficiency is improved. Key parameters during flood discharge of the arc-shaped service gate are monitored in real time, the state change of equipment is quickly responded, and the real-time performance of fault detection is enhanced.

The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a flood drainage system and method for a pumped storage power station. The flood drainage system of the pumped storage power station comprises a flood drainage tunnel, an energy dissipation building, a stilling pool and a protection facility, the flood drainage tunnel comprises a gentle slope base layer and an abrupt slope base layer, the abrupt slope base layer is provided with an energy dissipation section in a calibration range of an outlet of the flood drainage tunnel, the energy dissipation section comprises a diffusion area and a broadening area, and the energy dissipation building comprises multiple energy dissipation steps. The multi-stage energy dissipation steps in the diffusion area are used for gradually changing the water flow velocity, the stilling pool is connected to an outlet of the flood drainage tunnel, and the protection facility is connected between an outlet of the stilling pool and an original riverbed covering layer. The upstream water flow passes through the multi-stage energy dissipation steps and the stilling pool to dissipate the energy of the water flow, and the energy-dissipated water flow is transited to the original riverbed covering layer through the protection facility, so that the influence on the downstream environment is reduced, and the original riverbed covering layer is protected.

The invention discloses a fishway inlet flow velocity adjusting system and method based on fish induction flow velocity, and relates to the technical field of data processing. Firstly, environment and fish information comprehensive data of a fishway subordinate area are collected and analyzed, then target flow velocity adjustment parameters of the fishway subordinate area are obtained through matching, first fishway inlet flow velocity adjustment is carried out, a fish migration rule can be better understood, and therefore a more accurate flow velocity adjustment strategy is achieved; then analyzing the fishway operation parameters of the fishway membership area after the first adjustment and performing the second adjustment, continuously optimizing the flow velocity adjustment parameters, improving the fish luring effect of the fishway, and finally collecting the environment and fish information comprehensive data of the fishway membership area after the second adjustment and the fishway operation parameters of the fishway membership area so as to improve the fish luring effect of the fishway. The environment change can be quickly responded, the fish safety passing rate is improved, and therefore the fish passing effect of the fishway affiliated area is improved.

The invention provides a water conservancy project sand blocking and discharging device, and mainly relates to the field of water conservancy project drainage equipment. A water conservancy project sand blocking and discharging device comprises a desilting basin, a water inlet channel, a drainage channel, a flow dividing sand blocking assembly, a sand discharging assembly and a trash blocking grating assembly, the water inlet channel is fixedly installed on one side of the desilting basin, the drainage channel is fixedly installed on the side, close to the water inlet channel, of the front face of the desilting basin, and the flow dividing sand blocking assembly is arranged in the desilting basin; the lower portion of the drainage channel is provided with a desilting assembly communicated with the interior of the desilting basin, and the water inlet channel is internally provided with a trash holding grating assembly. The device disclosed by the invention has the beneficial effects that when the device is used for shunting silt in river water, the river water is introduced into the sedimentation tank through the water inlet channel, so that the river water generates vortex in the sedimentation tank to be beneficial to gathering heavier gravels to the center, and the sediment in the river water is accelerated.