40 results about "Flood discharge" patented technology

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.

This utility model belongs to the field of power plant flood discharge technology, and provides a multi-functional flood discharge system suitable for power plants, including: a flood connection pool arranged between upstream and downstream flood discharge structures, with a trash rack arranged on the waterway between the flood connection pool and the downstream flood discharge structure; at least one rainwater pump for pumping out stored water is arranged in the flood connection pool, and multiple photovoltaic panels are arranged in the flood connection pool; after the flood settles in the connection pool, it is discharged to the final water body through the pool. The trash rack set between the connection pool and the downstream flood discharge structure avoids siltation or damage to the flood discharge structure and improves the flood discharge effect.

The application provides a bridge hole flood discharge intercepting gate dredging structure device, belonging to the technical field of water conservancy gates, which comprises a gate frame, a gate plate is arranged in the gate frame, and the upper end of the gate plate is movably connected with the upper end of the gate frame through a lifting column; a collecting box controlled by a winch and a worm gear mechanism and capable of floating with the water level is arranged on the upstream side of the gate plate; when the gate is closed, the top box door of the collecting box is automatically opened at the end of the descending stroke of the gate plate through the corresponding toothed plate and spur gear arranged on the gate frame and the gate plate, so that the collecting box becomes a collecting port partially submerged in water; at this time, the water flow naturally pushes the floating objects gathered in front of the gate into the box, the crosswise inclined check plates in the box form a one-way labyrinth structure, allowing the water flow to pass but effectively retaining the floating objects, so that the floating objects are collected in situ, automatically and dynamically during the interception, and the floating objects are fundamentally prevented from entering the downstream when the gate is opened.

The present application relates to the technical field of slope protection, in particular to a method and system for analyzing the stability of a dump rock mass slope under flood discharge atomization, comprising collecting meteorological data and topographic data of a flood discharge area to determine the potential influence area range of flood discharge atomization; based on the potential influence area range, calculating the water droplet rainfall intensity contribution value at different positions in the area; combining the actual rainfall intensity with the physical and mechanical parameters of the dump rock mass slope to analyze the influence degree of rainfall on the strength parameters of the slope rock-soil mass; and based on the stability evaluation model, calculating the safety factor of the dump rock mass slope under different flood discharge conditions. By establishing the mapping relationship between the stability evaluation model and the flood discharge condition, the present application can accurately calculate the slope safety factor under different flood discharge flow rates, flood discharge durations and atomization influence ranges, so that engineering designers can make reasonable decisions under different conditions and ensure the effectiveness of slope protection measures.

This invention proposes a protective device and method for preventing the spread of pollutants in aquatic ecological environments, belonging to the field of ecological protection. The method includes the following steps: a water diversion channel is set up on one side of a river channel; anchor points are set up on the riverbank on the same side of the water diversion channel; a guide fluid is connected to the anchor points and allowed to float freely on the river surface; when the guide fluid is inclined at an acute angle relative to the river's flow direction, its end is anchored; the guide fluid is used to change the river's flow trajectory, causing floating debris in the water to bypass the water diversion channel. This invention uses a floating guide fluid placed obliquely on the bank, utilizing fluid dynamics principles to change the surface water flow trajectory, lifting floating debris from the inlet area of ​​the river flow rather than forcefully intercepting it. This results in minimal occupation of the river's cross-sectional area by the guide fluid, with the resulting water level rise only on the millimeter level, having almost no impact on upstream flood discharge and the water diversion capacity of the sluice gate, achieving the effect of diverting flow without obstructing water.

The utility model discloses a layout structure suitable for flood discharge and sand washing lock on many silt river, including sand washing lock and flood discharge lock, sand washing lock and flood discharge lock are side by side arrangement, and the upstream of sand washing lock and flood discharge lock is equipped with lock chamber upstream blanket, and the upstream blanket is equipped with the water retaining wall structure between sand washing lock and flood discharge lock, and the downstream of sand washing lock and flood discharge lock is equipped with downstream apron structure, and the downstream apron structure is equipped with the flow guide wall structure corresponding with water retaining wall structure, and the downstream apron structure tail end is fixedly connected with the sea bank structure, and the downstream apron structure and sea bank structure are equipped with apron tail end deep -tooth wall, still include water diversion lock, and water diversion lock is located at the one side of sand washing lock away from water retaining wall structure. The utility model discloses a layout structure suitable for flood discharge and sand washing lock on many silt river, solves the problem of easy wear and tear of existing energy dissipation mode, destroys the sea bank, threatens the stability of building and increases the maintenance management difficulty.

The present application belongs to the technical field of water conservancy and hydropower engineering closure construction, and particularly relates to a kind of embankment closure method based on integral assembly type double ridge closure bottom protection structure.The present application precast and accurately throw the integral bottom protection structure formed by rigid connection of bottom protection section and double ridge section in dry season of a year before closure, with standardized reinforced gabion as basic unit, adopt double connection inside and outside to form continuous plate type whole, with high impact resistance and stone blocking foot capacity.Through particle size and impact distance calculation, throw test, GPS joint positioning to realize accurate underwater throwing.After bottom protection construction is completed, embankment pre-advance is implemented in dry season of next year, and large stone and reinforced gabion are continuously thrown in closure stage, which can improve the stability of throwing material, prevent embankment collapse, and realize safe and rapid closure.The present application can solve the problems of traditional dispersed bottom protection, such as easy loss, low precision, interference with flood discharge, etc., and greatly improve the safety and efficiency of closure under complex riverbed conditions.

The application relates to the technical field of water conservancy and hydropower measurement safety, in particular to a safety evaluation method and device for a flood discharge gate, an electronic device and a storage medium, wherein the method comprises the following steps: acquiring structure data, geometric feature stress data and hydraulic working condition data of a flood discharge gate to be evaluated; determining a water flow excitation frequency and a gate opening and closing excitation frequency of the flood discharge gate to be evaluated, and determining a cracking risk quantitative index of the flood discharge gate to be evaluated; acquiring a gate opening and closing speed safety threshold value of the flood discharge gate to be evaluated, so as to determine a safety grade of the flood discharge gate to be evaluated, and generating corresponding early warning instructions and / or visual display instructions according to the safety grade. Therefore, the problems in the prior art, such as the incapability of comprehensively reflecting the gate structure defect and the multi-frequency resonance coupling deterioration mechanism, the low cracking risk quantitative evaluation precision, the absence of the opening and closing parameter threshold value, the insufficient linkage between the early warning visualization and the automatic control, and the difficulty in guaranteeing the long-term safe and stable intelligent operation of the flood discharge gate, are solved.

This invention belongs to the field of rock mass engineering testing devices, and provides a physical model test device and method for flood discharge fog and rain simulation, including: a model box, a water supply system, a fog and rain simulation system, and a groundwater simulation system. The model box consists of a sedimentation tank and a test chamber. The water supply system mainly consists of an inlet pipe, a storage tank, a delivery pipe, a variable frequency self-priming booster pump, a flow meter, a check valve, a bend joint, and a main water pipe. The fog and rain simulation system mainly consists of a frame, a servo motor, steel strands, fixed supports, anchors, a top water pipe, a tee joint, a bend joint, and nozzles. The groundwater simulation system includes a front water level regulating tank and a rear water level regulating tank. This invention realizes the influence of fog and rain zoning and the coupling effect of fog and rain with groundwater level on fractured rock slopes, which is of great significance for the study of the stability of high dam fractured rock slopes under flood discharge fog during the construction and operation of hydropower projects.

This invention proposes a regional flood volume estimation method based on the fusion of multi-source satellite remote sensing images and DEM (Digital Elevation Model). Utilizing flood extent extraction results based on multi-source SAR and optical satellite data, the water surface elevation is adaptively determined within a local neighborhood, avoiding systematic biases introduced by the global assumption. A high-resolution water depth distribution map is constructed by traversing the regional flood extent through a sliding window, and then the total flood volume is obtained by summing these maps. This method requires no hydrological station network calibration and only two types of basic data: multi-source satellite remote sensing images and DEM, enabling rapid estimation of flood discharge from remote sensing observation data. This invention overcomes the systematic biases of the global constant water surface elevation assumption in complex terrain, achieving rapid and high-precision estimation of flood volume in areas without a hydrological station network through local adaptive water depth inversion.

The present application relates to the technical field of water environment treatment, solves the technical problems that the existing buffer zone design generally has the problems of width / structure determined by experience, lack of multi-scenario adaptation and quantifiable ecological target constraint, and particularly relates to a method for constructing a composite buffer zone at a lake inlet based on a hydrology-water ecology response model, a multi-scenario fingerprint library is constructed based on multi-source data of a target lake inlet area, a hydrology-water ecology response model is established for quantifying ecological indexes such as transparency, algal risk and submerged plant adaptability probability into an ecological response vector, a functional unit library is constructed and structure gene coding is used to describe the topology and parameters of units such as dissipation allocation, sedimentation dredging, reaction bed fixation, vegetation rhizosphere reaction and bottom protection and motion suppression; multi-objective inversion optimization and robustness evaluation are carried out under multi-scenarios, and a composite buffer zone spatial layout, size parameters and operation and maintenance trigger threshold values that meet flood discharge and stability constraints are output, so that parameterization and deliverable design of the lake inlet buffer zone are realized.

This invention relates to the field of water conservancy engineering equipment technology, and discloses a flood control device and method for water conservancy projects. The device includes a gate plate and a hydraulic telescopic mechanism installed between the riverbed and the embankment. A support block is fixedly connected to the riverbed, and a rotating block is rotatably connected to the upper end of the support block. The end of the rotating block away from the support block is fixedly connected to the gate plate. A hydraulic telescopic mechanism is provided on the side of the support block away from the gate plate. The lower end of the hydraulic telescopic mechanism is installed on the riverbed, and the upper end is installed on the gate plate. A sliding groove is provided on the side wall of the embankment, and a slider is slidably connected inside the groove. This invention, by setting slots, sewage troughs, and drainage troughs on the riverbed, allows the drainage gap created when the water-blocking plate is raised during flood discharge to guide debris such as mud, sand, and branches through the sewage trough into the drainage trough for discharge, avoiding the jamming caused by debris accumulation at the bottom of traditional gates.

The application relates to the technical field of water and soil conservation, and provides a newly-added or restored cultivated land erosion ditch treatment structure and a treatment method, which comprise a landfill body, a cultivated soil layer and a buried pipe drainage system, the landfill body is arranged in an erosion ditch to be treated, at least part of the space of the erosion ditch is filled under the premise of ensuring the flood discharge safety of the ditch, the cultivated soil layer covers the top of the landfill body and constitutes a planting layer of the newly-added or restored cultivated land, the buried pipe drainage system is arranged below the cultivated soil layer and is embedded in the upper part of the landfill body, the outer side of the buried pipe drainage system is covered with a blockage prevention layer, and the blockage prevention layer is used for converting the surface runoff and soil water flowing into the cultivated soil layer into underground water flow and discharging the underground water flow. The application greatly reduces the direct scouring force of surface water on the newly-added cultivated soil layer, fundamentally prevents the occurrence of secondary erosion, and ensures the long-term stability and sustainable utilization of the cultivated land after treatment.

The diversion tunnel flood discharge structure comprises a diversion tunnel, a flood discharge pipe, a pressurizing pipe and an air compressor, the flood discharge pipe is fixedly arranged, one end of the flood discharge pipe is connected with the water outlet end of the diversion tunnel, the other end of the flood discharge pipe is connected with a river channel, one end of the pressurizing pipe is connected with the flood discharge pipe, and the other end of the pressurizing pipe is connected with the air compressor. The inner diameter of the pressurizing pipe is smaller than that of the flood discharge pipe. The diversion tunnel flood discharge structure is simple in overall structure, high in flood discharge efficiency and low in construction difficulty and cost.

The utility model discloses a facility that promotes flood control and disaster prevention ability of diversion type hydropower station belongs to disaster prevention technical field, and its technical scheme main points include flood discharge tunnel, the outside fixed connection of flood discharge tunnel has underwater bearing plate, the top fixed connection of underwater bearing plate has grating, the outside swing joint of underwater bearing plate has floating type collection mechanism, the outside swing joint of floating type collection mechanism has quick installation mechanism, can through underwater bearing plate, linkage plate, collection bucket etc., realizes automatic collection and processing to water surface sundries, and the collection bucket goes up and down and moves and collects impurity, and the sieve plate separates smaller impurity, and the puncture head decomposes larger impurity, can solve the problem of traditional sewage, reduces the workload of sewage, makes sewage work from comprehensive cleaning grating changes for only collection collection bucket and part of the untreated impurity, simultaneously, shortens the residence time of sewage ship outside flood discharge tunnel, reduces the safety risk of flood discharge tunnel suction.

This invention discloses a dynamic assessment device and method for river flood risk and unmanned precision dredging, relating to the field of water conservancy and river management technology. The device includes: an unmanned high-frequency mapping unit, an intelligent analysis and decision-making unit, an unmanned precision dredging unit, and an on-shore sludge treatment and disposal unit. Each unit is bidirectionally connected to the intelligent analysis and decision-making unit. The unmanned high-frequency mapping unit is a lightweight unmanned surface vessel (USV) equipped with a multibeam echo sounder and other equipment to collect terrain data and construct models. The intelligent analysis and decision-making unit is deployed on-shore or in the cloud, processing data and issuing dredging commands. The unmanned precision dredging unit is a dynamically positioned USV integrating variable depth suction and other mechanisms. The on-shore sludge treatment and disposal unit receives and processes dredged sludge through a sealed structure. This invention features a multi-architecture compatible hardware layout and a dual-threshold PID precision dredging process, achieving centimeter-level depth control and closed-loop sludge transport, protecting the original riverbed soil layer, reducing energy consumption and management investment, and stabilizing the river's flood discharge capacity.

This invention belongs to the field of water conservancy and irrigation engineering technology, and discloses a downstream-flow-type hydraulic reference water divider structure, including a base, a flood discharge cap, and a guide wing wall. The base is located at the bottom of the main canal and upstream of the branch canal. A protrusion is provided on the top surface of the end of the base facing the branch canal, and a water divider weir is provided on the protrusion to connect the main canal and the branch canal. The flood discharge cap is located above the protrusion and forms a water divider between the protrusion and the protrusion. The water divider is connected to the water divider weir, and the width of the water divider is greater than the width of the water divider weir. The guide wing wall is located upstream of the water divider along the flow direction of the main water flow in the main canal, and is used to guide a portion of the main water flow in the main canal to the inlet of the water divider and / or the water divider weir and into the branch canal. This invention achieves precise water distribution under stable water depth conditions, is suitable for small and medium-sized traditional and modern irrigation projects, and solves the problems of uneven irrigation, large head loss, poor structural stability, and susceptibility to erosion damage of traditional water divider structures.

This invention discloses an intelligent reservoir flood discharge scheduling system based on digital twins. It collects data on reservoir water level, inflow, outflow, rainfall, and downstream cross-sectional water level, and constructs a multivariate hydrological time series with a unified time scale. The inflow is extracted as the analysis object, forming a continuous state sequence containing multi-state information. A structure matrix is ​​constructed based on delayed embedding and established with a correspondence to the state window. A stable time series is obtained through low-rank reconstruction and state consistency correction. Furthermore, spectral characteristic parameters such as dominant frequency, amplitude, and phase are extracted to generate inflow prediction results. Combining the current water level and downstream constraints, the target outflow is calculated, the gate opening is determined, and continuous flood discharge control commands are output.

This invention discloses a construction method for raising and connecting the drainage well of a tailings dam. Six to twelve bored piles (5) are evenly spaced around the center of the original drainage well (6). A ring-shaped pile foundation (4) is cast using a combination of steel formwork or thick wooden formwork, employing a sloping, layered, thin-layered method. The opening of the original drainage well (6) is enclosed within the ring-shaped pile foundation (4). A custom-designed arc-shaped steel formwork is used to cast the ring beam (2) of the raised drainage well to ensure the roundness of the well body. Precast arch plates (1) are installed using the reserved slots or support beams on the sides of the raised drainage well frame columns (3). The precast arch plates (1) are installed layer by layer with the tailings accumulation height to form a drainage channel. This invention, by arranging bored piles, directly transfers the entire load of the upper raised well shaft to the deep, stable soil layer, without relying on or compressing the existing drainage well structure, thus completely solving the risk of settlement or mining due to insufficient bearing capacity in deep soft soil strata.

The utility model provides an ecological ditch of initial rainwater diversion purification, including the sedimentation unit, initial rainwater diversion unit and primary purification unit that are in series in proper order, the sedimentation unit includes the sedimentation area, and the upper portion of the side wall of sedimentation area is equipped with the water inlet of sedimentation area, and the bottom of sedimentation area is equipped with the sludge discharge mechanism, the initial rainwater diversion unit includes the diversion dam, and the diversion dam from bottom to top includes the sedimentation area limiting platform, filler filter area, rainwater discharge area and flood discharge area in proper order, and rainwater discharge area and flood discharge area are connected with rain flood discharge channel, the primary purification unit includes the primary treatment area, and the primary treatment area is communicated with the sedimentation area through filler filter area, and the water flow direction of primary treatment area is equipped with the water retaining wall of height not less than diversion dam, and the both sides of diversion dam are adjacent with sedimentation area and primary treatment area respectively, through the reasonable setting of structure, the effective diversion of initial rainwater and the efficient exclusion of middle and later period rainwater are realized, the retention time of initial rainwater in ecological ditch is prolonged, and the purification effect of the pollutants in rainwater is improved.

The present application relates to the technical field of remote sensing information extraction and flood control safety supervision, in particular to a riverway inside obstructing flood discharge forest and high-stalk crop identification method based on deep learning technology, which utilizes the front view, rear view and normal view three-line array stereo image pair data obtained by optical stereo mapping satellite in the riverway management range, constructs high-precision digital surface model through aerial triangulation and image matching procedures. The present application fuses stereo image pair image and spaceborne laser radar data, constructs deep unbalanced regression deep learning network model, realizes automatic identification and spatial distribution monitoring of riverway inside obstructing flood discharge forest and high-stalk crop, utilizes the digital surface model generated by optical stereo image pair and the discrete canopy height information obtained by spaceborne laser radar, combines the multi-scale spatial feature extraction and nonlinear regression ability of deep network, realizes seamless expansion from discrete laser point height to continuous canopy height plane, and improves the spatial continuity and precision of high-stalk vegetation identification result.

This invention relates to an energy dissipation structure and design method for a high-head, high-flow-rate vertical shaft vortex spillway, belonging to the field of flood discharge and energy dissipation technology in water conservancy and hydropower engineering. The structure incorporates a general basic module and scenario-specific energy dissipation modules along the water flow direction. For scenarios with limited elevation differences, a transitional energy dissipation section, a stilling well section, and a turning diffusion section are used. For ultra-high flow scenarios, a sudden expansion stilling pool and a connecting pool are employed. The connections between modules are smooth transition structures. The design method includes operating condition classification, parametric modeling, numerical simulation verification, risk control, and engineering implementation. This invention is adaptable to multiple scenarios, achieving efficient graded energy dissipation and smooth flow transitions, avoiding resonance and cavitation erosion risks, and improving the operational safety and economy of the spillway.

The utility model discloses a flood discharge and sand discharge hole arrangement structure of pumped storage reservoir engineering and construction diversion method in the technical field of water conservancy and hydropower engineering. The flood discharge and sand discharge hole arrangement structure of pumped storage reservoir engineering of sand not entering the reservoir, containing the reservoir main dam, still contains the sand retaining dam and the flood discharge and sand discharge hole, the sand retaining dam is located the upstream of reservoir main dam, the flood discharge and sand discharge hole import section is located the upstream of sand retaining dam, the flood discharge and sand discharge hole body section is through the mountain, and the flood discharge and sand discharge hole export section is located the downstream of reservoir main dam, the sand retaining dam still is provided with sand retaining dam water delivery hole, is used for the water delivery to sand retaining dam and reservoir main dam interval reservoir area. Through setting up sand retaining dam and retaining water in the upstream, and utilize flood discharge and sand discharge hole to arrange flood and sand to the downstream of reservoir main dam, utilize sand retaining dam water delivery hole to carry out initial water storage and operation period water supplement to the lower reservoir, make the lower reservoir become the special use reservoir, thereby avoid the influence of sand, form the new type pivot arrangement mode of sand not entering the reservoir pumped storage power station reservoir.

This application provides an artificial intelligence-based method and system for monitoring water levels in water conservancy projects. The method involves acquiring meteorological parameters, soil moisture parameters, and water level measurement parameters generated by magnetic levitation displacement sensing from a group of reservoirs across a basin, analyzing the dynamic changes of these parameters, and calculating the correlation strength coefficient reflecting the hydraulic interaction between reservoirs. This coefficient is then jointly encoded with the water level measurement parameters to construct a dynamic correlation map across reservoirs. Real-time water level signals from each reservoir are simultaneously collected and matched with a pre-set fluctuation feature library to identify abnormal water level intervals related to water flow path nodes. By combining the mapping relationship between the dynamic correlation map and the abnormal fluctuation intervals, the risk level of water level imbalance is determined, and control commands, including flood discharge path optimization and water storage capacity adjustment, are generated accordingly. The technical solution provided in this application can improve the efficiency and accuracy of water level monitoring in water conservancy projects.

This invention provides a dam flood discharge control method based on precipitation, relating to the field of water management technology. The method includes: determining the upstream watershed of the dam and dividing the watershed into multiple regions; calculating the increase in dam storage caused by precipitation in each time period based on the precipitation in each region, and further predicting and calculating the dam storage at the end of each time period; and adjusting the flood discharge volume in real time based on the dam storage at the end of the time period. This method helps improve the accuracy of dam storage volume prediction, enabling real-time dynamic prediction of dam storage volume, facilitating precise and reasonable flood discharge control of the dam, and achieving accurate early warning and rapid response to water-related disasters.

The present application relates to the technical field of hydraulic engineering safety, especially relates to a cascade earth-rock dam reservoir group system failure probability analysis and intelligent control method, the method first acquires basic data, constructs a failure research and judgment model to calculate the failure probability of a single earth-rock dam; secondly, the static water power connection degree is calculated and the time-varying water power connection degree is obtained by using the time-varying water dynamic parameter correction, and the target weight is obtained by combining the global sensitivity index correction analytic hierarchy process weight; then the above results are solved, and the overall failure probability of the system is calculated through recursive logic; finally, a risk scheduling optimization model is constructed, taking the flood discharge flow as the decision variable and minimizing the overall failure probability as the target, to solve and generate the optimal scheduling scheme. The present application can accurately quantify the dynamic risk transmission of the cascade system, realize the accurate evaluation and intelligent control of the system risk, and ensure the flood control safety of the basin.

This invention discloses a distributed atomized rainfall measurement system and method for high dam flood discharge. The method includes: deploying a measurement matrix within a predetermined measurement space, consisting of multiple vector open-faced rain measuring devices with dynamically adjustable opening angles and water-facing attitudes, and acquiring their raw measurement data; identifying and separating effective measurement data corresponding to atomized raindrops based on the spatiotemporal characteristics of the raw measurement data; calculating the atomized rainfall intensity at the location of each rain measuring device by normalizing the effective catchment area corresponding to the real-time opening angle of each rain measuring device at the measurement time, based on the effective measurement data; and generating a three-dimensional atomized rainfall intensity distribution based on the atomized rainfall intensity and spatial location of multiple rain measuring devices. This invention solves the problem of atomized rainfall intensity measurement under extreme hydraulic environments by adaptively controlling the device attitude and opening angle, identifying the signal source, and dynamically normalizing the rainfall intensity calculation.

This utility model discloses a water conservancy dredging and flood discharge channel, relating to the field of water conservancy engineering. The key technical points are: it includes a ditch, comprising a straight section and a curved section. Several flow-delaying plates are installed on the straight section, and flow-blocking plates are installed on the curved section. An installation platform is fixedly connected above the ditch, with several installation holes on the platform. Several installation columns are fixedly connected to one side of the flow-blocking plates, and the installation columns are slidably connected in the installation holes. Compression springs are fitted around the installation columns. Before the water flows into the curved section, the flow-delaying plates break the linear flow of the water, thereby slowing down the flow velocity and reducing the impact on the inner wall of the curved section. The flow-blocking plates block the impact of the water flow. Since the installation platform for the flow-blocking plate structure is located outside the ditch, the platform structure mainly bears the force, ensuring the safety of the riverbed in the curved section. The compression springs help the flow-blocking plates to provide some buffering, thereby reducing the impact force of the water flow.

The utility model discloses a production area cofferdam flood discharge device belongs to hydraulic equipment field, including the enclosure board, the inside fixed mounting of enclosure board has the drain pipe, the front fixed mounting of enclosure board has the connecting pipe, the top fixed mounting of connecting pipe has the water guide subassembly, the one end fixed connection of connecting pipe away from water guide subassembly is in the drain pipe, the one end fixed mounting of drain pipe away from connecting pipe has the receiving seat, the inside fixed mounting of receiving seat has the barrier component. The utility model has the beneficial effects that: through the mode that the drainage and the water weight of ponding push the water level ball and push the rod displacement in the connecting pipe to extrude the sealing board and the extension spring, can realize the effect that the drain pipe can realize the effect of self -draining under the heavy rain weather, and the water level hole on the upper portion of the enclosure board realizes the double drainage effect of top and bottom, and the ponding in the production area surrounded by the enclosure board is discharged quickly, and then reduces rainwater into the production process.

This invention provides a tailings dam drainage well group and flood discharge system, relating to the field of tailings flood discharge technology. The tailings dam drainage well group provided by this invention includes a base and multiple drainage wells. Each drainage well is installed on top of the base, which has a drainage channel. Each drainage channel has a drainage outlet and inlets that correspond one-to-one with the spaces enclosed by the multiple drainage wells. The drainage outlet is connected to each inlet. The tailings dam drainage well group provided by this invention allows multiple drainage wells to share a single drainage outlet, saving the construction cost of subsequent connecting tunnels and facilitating centralized and unified management of the flood discharge system. Furthermore, each drainage well can be designed with different sizes and types to meet different flood discharge capacity requirements.