244 results about "Flood discharge" patented technology

The invention relates to the technical field of hydraulic engineering safety monitoring, in particular to a safety monitoring method and system for a flood discharge and sand flushing service gate. The method comprises the steps that a super-strong permanent magnet sensor is installed on an underwater flood discharge and sand flushing service gate, and the magnetic attraction strength of the super-strong permanent magnet sensor is controlled according to real-time water flow; when the real-time water flow is larger than the preset water flow high threshold value, the magnetic attraction strength is enhanced; if the water flow is lower than the preset water flow high threshold value, the magnetic attraction strength is recovered to the standard magnetic attraction value; the ultra-strong permanent magnet sensor monitors vibration state data and dynamic stress data of each structure in the operation process of the underwater flood discharge and sand flushing service gate; obtaining a rigidity evaluation value and a dynamic stress safety evaluation value of the underwater flood discharge and sand flushing service gate; and performing evaluation in combination with the characteristic data in the operation process of the underwater flood discharge and sand flushing service gate to obtain the safety coefficient of the current underwater flood discharge and sand flushing service gate. The stability of the gate is dynamically enhanced, the magnetic attraction strength is matched with water flow impact in real time, and high-flow-speed loads are effectively resisted.

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 method for analyzing deformation characteristics of an exit slope of a flood discharge building, which comprises the following steps of: firstly, collecting geotechnical parameters, hydraulic load parameters, GNSS displacement, pore water pressure and clinometer data of the slope; then, constitutive parameters of the slope stability model are dynamically corrected, GNSS displacement is decomposed into creep and elastic displacement components, and the time delay error of pore water pressure data is compensated; thirdly, seepage-stress coupling stability calculation is conducted in combination with the compensated pore water pressure and inclinometer data, and the slope stability safety coefficient is obtained. And finally, outputting the creep displacement, the elastic displacement and the stability safety coefficient to an early warning terminal. According to the invention, the accuracy and reliability of slope stability evaluation can be improved.

The invention relates to the technical field of slope seismic resistance, and discloses an engineering slope seismic stability optimization method and system, and the method comprises the steps: collecting flood discharge tunnel outlet slope data and seismic oscillation parameter values, and carrying out the partitioning according to the flood discharge tunnel outlet slope general situation data; analyzing rock mass weathering and unloading and physical geology phenomena in each area to obtain physical mechanical parameter suggestions; establishing a three-dimensional model of the flood discharge tunnel outlet slope based on the physical and mechanical parameter suggestions and the seismic oscillation parameter values; inputting the non-uniform seismic dynamic load into the three-dimensional model of the flood discharge tunnel outlet slope for analog calculation; establishing a side slope geomechanical model, and performing simulation verification; and comparing the simulation verification result of the side slope geomechanical model with a preset rule threshold value, if the simulation verification result of the side slope geomechanical model is greater than the preset rule threshold value, performing early warning, uploading the simulation verification result of the side slope geomechanical model to a cloud platform, and performing visual output. According to the invention, comprehensive analysis and management of the flood discharge tunnel outlet slope under the earthquake effect are realized.

The invention provides a slope seepage analysis method under a flood discharge atomization condition. The slope seepage analysis method comprises the following steps: S1, acquiring slope pore water pressure data and matrix suction data through a distributed sensor array; s2, the data fusion unit compares the pore water pressure data with a dynamic critical pressure threshold value, compares the matric suction data with a dynamic critical suction threshold value, and generates a seepage analysis trigger instruction when any data exceeds the limit; s3, starting a transient seepage field calculation model by the seepage calculation engine based on the fracture network topology data; s4, generating a slope stability control parameter set according to a seepage pressure distribution diagram output by the transient seepage field calculation model; and S5, the execution system regulates and controls the operation state of the drainage facility according to the slope stability control parameter set. The slope seepage pressure can be reduced, the slope stability is improved, and safe operation of a water conservancy project is guaranteed.

The invention discloses a durability evaluation method for a slope protection layer of a flood discharge atomization area, and the method breaks through the limitation of a conventional static load hypothesis, and accurately reflects the load joint variability through dynamic monitoring and probability modeling. The core problems of inaccurate load feature description, insufficient multi-field coupling simulation precision, lack of time-varying reliability evaluation and the like of a traditional method are effectively solved. The combination of dynamic monitoring and probability modeling improves the load characteristic representation precision, the multi-physics field coupling calculation accurately simulates the water particle impact mechanism, the fusion of the intelligent prediction model and the random process theory realizes the dynamic evaluation of the performance degradation of the protective layer, and finally provides quantitative decision support for engineering maintenance.

The invention belongs to the field of dam flood discharge safety, and provides a dam flood discharge safety protection method and system based on earthquake response analysis, and the method comprises the steps: S1, obtaining multi-source environment and structure data in real time; s2, preprocessing the multi-source environment and structure data to form a unified time sequence multi-dimensional data set; s3, simulating and analyzing the structural dynamic response of the dam and the flood discharge gate based on the unified time sequence multi-dimensional data set, and evaluating potential damage; s4, comprehensive risk assessment is carried out by combining the earthquake response analysis and damage assessment result, the hydro meteorological data and the flood discharge gate operation state data, and early warning information is generated; s5, generating a dynamically adaptive flood discharge gate opening and closing strategy according to the comprehensive risk assessment result and the early warning information; s6, executing the opening and closing strategy of the flood discharge gate, and monitoring the actual operation state of the flood discharge gate in real time; and carrying out comparative analysis on the actual running state of the flood discharge gate and the prediction strategy, and carrying out updating and optimization according to an analysis result.

This invention relates to the field of data prediction technology, specifically to a collaborative control method for the opening degree of hydropower station gates based on BeiDou technology. This method constructs state parameters and analyzes the transition of these parameters over historical periods to obtain the transition probability for each state parameter transition. By combining the correlation between meteorological data and opening data, as well as the correlation between historical meteorological data and predicted meteorological data, the transition probabilities are continuously weighted to obtain a second weighted transition probability. The quantitative characteristics of the state transition of the flood discharge channel gate under its predicted state transition are statistically analyzed for the non-flood discharge channel gate, thereby obtaining the upper-level influence weight, obtaining the second state transition matrix of the flood discharge channel gate, and performing state prediction. This embodiment of the invention, by combining the influence of historical meteorological data and further combining the control influence between gates, obtains accurate gate state prediction results.

The invention discloses a flood discharge vertical shaft stilling well-turning section body type unified optimization method. The method comprises the steps that multi-working-condition physical constraints describing body type parameters of a flood discharge vertical shaft, a stilling well and a turning section are obtained, and a combined feasible region is constructed; obtaining a typical flood working condition set; an active sampling strategy is adopted, body type sample data are obtained through iteration aiming at the typical flood working condition set in the joint feasible region, and a flow regime partition model and a hydraulic index agent model are constructed through iteration; according to the active sampling strategy, multi-working-condition uncertainty and flow regime partition boundary information are fused; in the joint feasible region, the flow regime partition model and the hydraulic index agent model are applied, a robust optimization model considering the cross-working-condition flow regime stability is constructed and solved, and a unified optimization body type scheme is obtained. According to the method, by introducing the flow state middle layer and combining the sampling strategy of flow state boundary driving, the capturing capacity and optimization efficiency of nonlinear flow state sudden change are improved.

The invention discloses a data processing method applied to digital twinborn hydraulic engineering, and relates to the technical field of hydraulic engineering, the decision reliability of the digital twinborn hydraulic engineering in a rainstorm scene is significantly improved through algorithm architecture reconstruction, a two-channel cooperation mechanism deeply couples water level time sequence monitoring and rainfall space analysis, and the accuracy of data processing is improved. A graph convolutional network is used for extracting drainage basin level rainfall thermodynamic diagram features, self-attention dynamic noise filtering is combined, space-time alignment of meteorological data and ground sensing is achieved, false alarms caused by equipment interference or data asynchronization are restrained from the source, it is ensured that an early warning instruction is only triggered under the real flood situation condition, and the early warning efficiency is improved. The edge intelligent closed-loop decision breaks through the cloud dependence bottleneck, the lightweight model locally generates a scheduling strategy at a gate station node, the reinforcement learning driven gate control takes the water level deviation as an optimization target, and the loss of frequent actions on equipment is synchronously constrained, so that the flood discharge response is changed from passive rule execution to active risk stabilization.

The invention relates to a cascade reservoir flood control capacity collaborative optimization method and system based on a dynamic game, and belongs to the technical field of hydropower station group flood control regulation and storage. Comprising the following steps: collecting a historical water level sequence, upstream flood discharge flow, drainage basin rainfall confluence data, radar flow measurement data, dam body stress indexes and dynamic correlation parameters of a cascade reservoir group, inputting the collected data into a space-time risk field model, and constructing a space-time risk field; constructing a game model based on the space-time risk field, taking an upstream reservoir as a leader to formulate a reservoir capacity allocation strategy, taking a downstream reservoir as a follower to dynamically adjust a flood discharge scheme according to the leader strategy, and coordinating a flood control target and an economic target through a time-varying game weight; solving the game model by adopting an improved distributed ADMM optimization algorithm to generate a scheduling instruction, and verifying the legality of the scheduling instruction through a block chain smart contract; and pre-executing the scheduling instruction in the digital twin simulation platform, dynamically calibrating the mapping parameters of the physical reservoir and the virtual mirror image through reinforcement learning, generating a final scheduling instruction, and issuing and executing the scheduling instruction.

The invention provides an automatic operation control method for a low-dam hydropower station. The method comprises the following steps: preprocessing collected water level and incoming water flow data; a reservoir capacity dynamic calculation model is constructed in combination with the reservoir capacity curve graph and the water level flow data, and dynamic updating of reservoir capacity data is achieved; historical hydrological data, current water level flow and reservoir capacity data are fused to train a machine learning model, and the reliability of short-term inflow prediction is improved; based on the safe operation threshold value, the reservoir capacity data and the incoming water prediction result are input into a multi-objective optimization algorithm, a generator set power adjustment strategy and a flood discharge gate opening degree regulation strategy are automatically generated, and the generator set operation power and the flood discharge gate opening degree are automatically controlled, so that the problems that in the prior art, a low-dam hydropower station is low in automation degree and high in efficiency are solved. And manual adjustment is relied on.

The invention discloses a method for constructing and solving a wind speed optimization model of a flood discharge tunnel traffic corridor based on a physical characteristic embedded mixed variable, and the method comprises the steps: determining key control parameters of safe and stable operation in the traffic corridor during flood discharge according to the core influence factor of the wind speed of the flood discharge tunnel traffic corridor, thereby determining an optimization variable and an optimization target; physical correction normalization is carried out on the water head height in the optimization variables, segmented normalization is carried out on the gate opening, and physical attribute mapping is carried out on the flood discharge operation hole number combination; according to the normalized physical attribute mapping of the gate opening degree and flood discharge operation hole number combination, the total open area is calculated; physical characteristics are constructed according to the total overflowing area and the normalized water head height; and establishing a flood discharge tunnel traffic corridor wind speed optimization model according to the water head height, the flood discharge tunnel operation hole number combination, the gate opening and the physical characteristics, and solving. According to the method, the optimal scheme of the wind speed of the flood discharge tunnel traffic corridor is obtained.

The landslide dammed lake landform utilization and restoration method comprises the steps that backfill back pressure is conducted on a slope toe river channel at the front edge of a landslide, reinforced concrete retaining walls are arranged at the upstream end and the downstream end of a backfill back pressure area respectively to stabilize backfill bodies of the backfill back pressure area, and water from the upstream of the river channel is intercepted to form a water storage area; reinforced concrete flood discharge and sand discharge holes are linearly distributed in stable mountain bed rock outside the landslide area, the inlet ends of the flood discharge and sand discharge holes are connected with an upstream water storage area river bank, the outlet ends of the flood discharge and sand discharge holes are connected with a downstream river bank slope, and a water pump station and a pipeline are built in a geological stable area of the water storage area to lift water. The land in the landslide area is recycled; by arranging the backfill back pressure area and the flood discharge and sand discharge hole, on the basis of stabilizing the landslide weir body, the water pumping station and the water lifting pipeline are built, water stored in the water storage area is utilized to irrigate and recycle land in the landslide area, land utilization and ecological restoration are carried out on the basis of landslide prevention and control, and the landslide treatment effect is improved.

The invention discloses a multi-modal perception flood discharge tunnel automatic inspection path optimization method and system, and relates to the technical field of path planning, and the method comprises the steps: obtaining multi-source intrinsic data of a target tunnel, and constructing a twin simulation model of the target tunnel; training to obtain an obstacle mechanism model used for predicting an obstacle risk section and an inspection prediction model used for predicting a target inspection section; acquiring an obstacle risk section and a target inspection section of the current inspection period; configuring an optimization target to perform global path planning, and generating an automatic inspection path; and controlling the inspection equipment to execute the automatic inspection path. The problems that existing flood discharge tunnel inspection depends on manpower or a single sensor, and path planning lacks global optimization and is difficult to adapt to complex and changeable environments, so that the inspection efficiency is low, and the risk assessment is inaccurate are solved.

The invention provides a simulation verification method for a flood discharge atomization physical model, which comprises the following steps: performing numerical simulation on the flood discharge atomization physical model by using an LBM model or an LES model, outputting a first simulation result, and extracting first droplet particle size distribution from a far field region; based on the geometrical characteristic parameters, experimental conditions and fluid physical parameters of the experimental device, mathematical simulation is carried out by adopting an Eulerian multiphase flow model and second numerical simulation software, a second simulation result is output, second droplet particle size distribution is generated from a far-field region, and the experimental device and the model meet a geometrical similarity ratio; and calculating a normalized deviation value of the particle size distribution of the first liquid drop and the particle size distribution of the second liquid drop, and if the value is less than a preset threshold value of 0.05-0.15, determining that verification is passed. The reliability and accuracy of the model can be improved, and a scientific basis is provided for optimizing flood discharge design and reducing atomization hazards.

The invention relates to the technical field of water conservancy and hydropower engineering, and discloses a sediment-carrying bed load riverway water taking structure which comprises a bed stabilizing structure, a flow guiding structure and a water taking structure, the bed stabilizing structure is arranged perpendicular to the water flow direction of a riverway, and one end of the bed stabilizing structure is connected with one side of the riverway; one side of the diversion structure is connected with the other end of the bed stabilizing structure, and the other side is connected with one end of the flood discharge gate; the water taking structure comprises a water taking weir, a pre-sedimentation tank and a sand blocking ridge, the pre-sedimentation tank is arranged on the other side of the river channel, the outer wall of the pre-sedimentation tank is connected with the flood discharge gate, the water taking weir is arranged on the side, close to the flood discharge gate, of the pre-sedimentation tank, and the sand blocking ridge is arranged on the downstream of the pre-sedimentation tank. The water taking structure carries out water taking and desilting, the water diversion and sand prevention problems of the river channel water taking opening are solved, and the operation efficiency of the water taking system is improved.

The invention discloses a flood discharge detection model training method, device and equipment and a medium, and the method comprises the steps: taking pre-collected video image data of a reservoir spillway as a first training sample set, and carrying out the sample enhancement of the first training sample set according to a preset sample enhancement strategy, and obtaining a second training sample set; wherein the sample enhancement strategy comprises one or more combinations of the following: an independent enhancement strategy, a combined enhancement strategy or a mosaic enhancement strategy; according to the second training sample set, training a pre-constructed initial flood discharge detection model to obtain a final flood discharge detection model; wherein the initial flood discharge detection model is an improved YOLOv8 model obtained through reconstruction of a flood discharge convolution feature extraction module and updating of a feature fusion module. According to the method, the calculation efficiency and the target detection precision of the flood discharge detection model can be improved under the scene of few sample data.

The utility model relates to a channel water-saving gate device based on buoyancy self-adjustment, the channel water-saving gate device based on buoyancy self-adjustment comprises a gate groove, a gate and a buoyancy linkage structure, the buoyancy linkage structure comprises a fixing rod arranged on the backwater side of the gate, the fixing rod is rotatably connected with a plurality of levers, the top of the gate is provided with a connecting handle, and the connecting handle is connected with the gate. The first connecting end, close to the gate, of the lever movably penetrates through the connecting handle and then is connected with a first limiting block, and the second connecting end, away from the gate, of the lever is connected with a first floating ball through a connecting rod so that the first floating ball can drive the gate to ascend and descend along the gate groove along with ascending and descending of the water level of the backwater side of the gate. A plurality of second floating balls are connected to the bottom of the gate, and when the gate is completely closed, the second floating balls are higher than the first floating balls, so that when the water level of the upstream side of the gate rises to the second floating balls, the gate can be opened under the action of the second floating balls to drain water. The channel water-saving gate device not only can accurately control the irrigation water level, but also has the flood discharge capacity.

The invention relates to the technical field of flood discharge gates, and discloses a control flood discharge gate of a water conservancy project and a using method thereof.The control flood discharge gate comprises a bottom plate, two side piers fixedly installed on the bottom plate and a flood discharge slope fixedly connected with one end of the bottom plate, a main gate is slidably installed between the two side piers, and a lifting frame is fixedly installed at the upper ends of the two side piers; a steel wire rope is fixedly connected between the output end of the winch and the upper end of the main gate. Water flow drives paddles to move, a rotating shaft drives a rotating disc to rotate, a sliding rod slides towards the edge of the rotating disc along a centrifugal groove under the action of centrifugal force when rotating along with the rotating disc, an arc-shaped plate is continuously limited by the sliding rod to drive a sliding block to move upwards, and at the moment, a pressure sensing plate senses pressure and controls an air cylinder to extend to a corresponding gear; the wedge-shaped block drives the water guide plate to rotate, the end of the water guide plate rotates upwards, the flood interception angle is reduced, and the situation that the load of the water turbine is increased due to excessive water flow in the flood flow channel is prevented.

The box culvert structure comprises a culvert and a flood discharge gate which is arranged at the outlet end of the culvert and can be opened, an overflow weir is arranged in the middle of the inlet end of the culvert, symmetrical concave plates are arranged on the side wall of the overflow weir and the inner wall of the culvert, pluggable water blocking plates are arranged in the concave plates, and the upper ends of the water blocking plates are higher than the upper end of the overflow weir. The overflow weir and the water blocking plate are matched to shield lake water outside the water facing opening of the culvert, so that when the lake water outside the water facing opening of the culvert is higher than the bottom end of the culvert, maintenance personnel can also enter the culvert to maintain a flood discharge gate in the culvert, and the maintenance does not affect the water level of the lake.

The invention discloses a lake-entering estuary wetland system. The sewage treatment device sequentially comprises a water inlet unit, a speed reduction and siltation promotion area, a deep turbidity reduction area, an enhanced purification area, a water quality stabilization area and a water outlet unit in the water flow direction, the lake-entering estuary wetland system is separated from the lake through an embankment; the water inlet unit comprises a wetland water inlet gate and a flood discharge gate. Aiming at the special hydrology and water quality conditions of the estuary entering the lake, the invention solves the problems of low plant survival rate, easy system blockage, unstable purification efficiency and the like in the existing constructed wetland system.

The present application relates to the technical fields of water conservancy and hydropower engineering, and discloses a multi-sediment bed load river channel water intake structure, which comprises a stable bed structure, a flow guide structure and a water intake structure, the stable bed structure is arranged perpendicularly to the water flow direction of the river channel, and one end of the stable bed structure is connected with one side of the river channel; one side of the flow guide structure is connected with the other end of the stable bed structure, and the other side is connected with one end of a flood discharge gate; the water intake structure comprises a water intake weir, a pre-sedimentation tank and a sand blocking ridge, the pre-sedimentation tank is arranged on the other side of the river channel, the outer wall of the pre-sedimentation tank is connected with the flood discharge gate, the water intake weir is arranged on the side of the pre-sedimentation tank close to the flood discharge gate, and the sand blocking ridge is arranged downstream of the pre-sedimentation tank, the present application stabilizes the river regime through the stable bed structure, narrows the river bed below the flow guide structure to discharge the bed load, and the water intake structure is used for water intake and sand setting, so that the problem of water diversion and sand prevention of the river channel water intake is solved, and the operation efficiency of the water intake system is improved.

The application relates to a river flood discharge capacity dynamic evaluation and hydrological early warning method. The method comprises the following steps: based on a parameter sensitive observation subset, sequentially updating an initial hidden variable in a low-dimensional hidden space through an unscented particle filter algorithm to obtain an optimized hidden variable, and inputting the optimized hidden variable into a river dynamic resistance field generator based on an initial dynamic roughness field to perform decoding processing to obtain a dynamic roughness field of a current period; based on the dynamic roughness field and a state sensitive observation subset, performing analysis and update processing on a state variable field of a hydrodynamic model through a deterministic ensemble Kalman filter algorithm to obtain an assimilated water level field and a flow velocity field; according to the water level field, the flow velocity field and the dynamic roughness field, the maximum flood discharge capacity of a section is calculated in combination with dike top elevation data, and a flood discharge capacity dynamic index is calculated based on the maximum flood discharge capacity of the section and a current actual flow. The method can realize real-time dynamic quantification of river flood discharge capacity and predictive evaluation of flood risk.

The utility model discloses an arrangement structure of an inverted siphon crossing a deep and narrow loess channel, which is characterized in that the inverted siphon directly penetrates through a slope section on a channel side, construction can be facilitated by adopting a directional drill, slope collapse caused by excavation is avoided, and the arrangement structure is suitable for a water delivery and distribution pipe to penetrate through various steep soil slopes. According to the overhead structure, the pile foundations are arranged on the two side slopes of the channel to support the anchor blocks, a flood discharge channel is guaranteed to the maximum extent, the horizontal section pipeline is in rigid connection through the concrete outer wrapping beams in the overhead structure, longitudinal temperature deformation and vertical self-weight deformation are avoided, construction is facilitated, the manufacturing cost is reduced, and the construction efficiency is improved. The method is suitable for the overhead section of the small-pipe-diameter inverted siphon spanning deep narrow channel.

The utility model discloses an overflow type immersed roadbed structure. A roadbed main body is composed of backfilled gravelly soil and slope protection; a roadbed backfilling area is arranged below the pavement structure layer, the roadbed backfilling area is composed of backfilled gravelly soil, and an overflow channel is arranged on the geological condition stable side of the roadbed; a high-pressure jet grouting diaphragm wall is arranged in the center of the roadbed, and the bottom of the high-pressure jet grouting diaphragm wall extends to bed rock; by means of the design of the overflow channel, it is guaranteed that flood can be smoothly discharged under the condition of the designed flood level, the situation that the roadbed is damaged due to the fact that the flood overflows the dam is avoided, the overflow channel foundation is reinforced through consolidation grouting, and it is guaranteed that the overflow dam structure is stable and safe; through the design of the high-pressure jet grouting diaphragm wall and the gabion protection slope, the stability of the roadbed under the condition of high water level is ensured, and the risks of leakage and landslide are reduced.

The invention relates to a farmland irrigation and flood drainage system device and method, and belongs to the technical field of agricultural water conservancy. The device aims to solve the problems that farmland is prone to waterlogging and drought, and a traditional irrigation mode is low in efficiency. According to the technical scheme, the system comprises a long-distance large-diameter water conveying pipeline, a flood drainage pipeline communicated with the long-distance large-diameter water conveying pipeline, a flood drainage opening well arranged in a farmland and communicated with the flood drainage pipeline, an irrigation pipe network buried underground and an irrigation water supply system arranged in the flood drainage opening well. During flood, surface water is converged into the flood drainage pipeline through the flood drainage port well and finally drained into the long-distance large-caliber water conveying pipeline; in drought, the irrigation water supply system takes water from the long-distance large-diameter water delivery pipeline into the flood discharge port well, and then the water is pressurized by the water pump and delivered to the underground irrigation pipe network to irrigate roots of crops. The device integrates drainage and irrigation, achieves the purposes of keeping harvest after drought or waterlogging, saving water and energy, saving time and labor and achieving automatic operation, and has the functions of improving saline-alkali soil, integrally applying water and fertilizer and the like.

The invention discloses a flood discharge, sand flushing, emptying and flow guide integrated hydraulic tunnel for a barrier lake and an application method, and relates to the technical field of flow discharge of barrier lakes, the hydraulic tunnel comprises an existing diversion tunnel, an existing tunnel transformation section, a dragon head inclined section, an upper flat section, an emergency flood discharge tunnel, an inlet accident maintenance lock chamber, an outlet working lock chamber section and an outlet flip bucket section; an existing diversion tunnel is transformed, a dragon-head-raising inclined section, an upper flat section, an inlet accident overhaul lock chamber, an emergency flood discharge tunnel and an outlet working lock chamber section are built on the upstream and downstream of the existing diversion tunnel correspondingly, an original water passing building and the emergency flood discharge tunnel are used as main diversion buildings, and the flood season overflowing requirement is combined. And the scale of surface hole flood discharge buildings such as a flood spillway and the elevation of a bottom plate are determined to meet the requirement for safe overflow flood control in the weir plug body construction period, no extra new tunnel needs to be built, and the multifunctional hydraulic tunnel integrating flood discharge, sand flushing and emptying is transformed.

The invention provides a flood discharge atomization protection method, and relates to the technical field of water conservancy and hydropower engineering, and the method comprises the steps: obtaining wind speed and wind direction data through a meteorological station; based on the acquired data, analyzing the influence of an environmental wind field on flood discharge atomization rainfall, determining atomization rainfall distribution, during analysis, decomposing the wind field into X-Y direction wind speed variables according to an extreme wind speed value and the most unfavorable local wind direction, and superposing the X-Y direction wind speed variables with a water tongue wind field in a windless state to complete wind field calculation; on the basis of atomization rainfall distribution, areas are divided according to atomization rainfall intensity, corresponding protection measures are taken according to the areas, and the protection measures comprise arrangement of flood discharge and energy dissipation buildings. By the adoption of the scheme, the flood discharge atomization protection effect is improved.

The utility model relates to the technical field of water conservancy gates, and discloses a novel water conservancy gate which is characterized in that a gate opening mechanism is mounted in a gate frame, and flood discharge mechanisms are mounted in the middle and on the left side of the gate opening mechanism; the rails are fixedly connected to the two sides in the gate frame, a gate body is slidably connected into the rails, a fixing piece is hung in the middle of the top of the gate body, a threaded rod is fixedly connected to the top of the fixing piece, and the threaded rod is in threaded connection with a hand wheel at the top of the gate frame. According to the novel water conservancy gate, when the water level rises, water flow pushes the floating shell, the floating shell drives the supporting frame, and then the first rack moves. As the inner sides of the first rack and the second rack are meshed with the gear, the gear rotates to drive the two limiting rods to act synchronously, the flood discharge plate overcomes the resistance of the spring to be separated from the flood discharge opening, and the flood discharge channel is opened. According to the flood discharge principle based on automatic control of water level change, the flood can be discharged in time, the water level is prevented from rising excessively, and surrounding cities, towns, villages and farmlands are effectively protected from being submerged by the flood.