133 results about "Water level fluctuation" patented technology

The invention relates to the technical field of automatic control, and discloses a flood season water quality monitoring method and system based on a variable speed integral PID controller. The method comprises the following steps: acquiring and fusing pollutant concentration data and water level fluctuation parameters in a flood season water body through a sensor network to obtain a current water quality state index; according to the current water quality state index, time sequence change data of pollutant concentration is extracted, concentration gradient information is calculated, freshness analysis is carried out on the concentration gradient information, and weighted gradient information is generated; fusing the weighted gradient information with historical water quality monitoring data, determining a comprehensive gradient trend, and obtaining a preliminary update value of a variable speed control coefficient through a variable speed integral PID control algorithm according to the comprehensive gradient trend; if the preliminary update value exceeds a preset range, an iterative optimization algorithm is adopted to obtain a refined variable speed control coefficient, operation parameters of water quality control equipment are adjusted, and a dynamic regulation and control result of the water quality in the flood season is output, and the control accuracy of the concentration of pollutants in the water quality is improved.

The invention discloses an open channel high-flow interference water level control method based on storage compensation and improved PID coupling, and the method comprises the following steps: collecting channel operation parameters in real time, including current flow, water level fluctuation amplitude, predicted demand and on-way resistance coefficient distribution; dynamically constructing a channel damping effect model based on the on-way resistance coefficient distribution, calculating water level control response delay time, and generating a preposed adjustment coefficient; dynamically adjusting the actual participation volume according to the maximum effective storage volume and the maximum effective storage volume of the stagnant storage area; a compensation control quantity is generated by the input improved PID controller; and the compensation control quantity is executed to adjust the opening degree of the channel gate, and dynamic suppression of water level fluctuation is achieved. The water level stability and the control effect of the open channel can be improved.

The invention provides a reservoir bank landslide deformation prediction method and system based on water level fluctuation, and relates to the technical field of landslide deformation prediction. The method comprises the following steps: acquiring monitoring data; preprocessing the monitoring data to obtain sample data; calculating a Pearson coefficient between reservoir water level change and landslide deformation; whether correlation exists between reservoir water level change and landslide deformation or not is judged; calculating an initial lag time length of influence of reservoir water level rise on landslide deformation; adjusting the initial lagging time length to obtain a dynamic lagging time length; based on the dynamic lag duration, establishing a time lag GM-BP deformation prediction model; inputting the sample data into a time-delay GM-BP deformation prediction model for training; acquiring real-time sample data; inputting real-time sample data into the trained time-delay GM-BP deformation prediction model, and outputting a final prediction result; and performing early warning according to the final prediction result. The accuracy of landslide deformation prediction can be effectively improved.

The invention relates to the technical field of shale gas development underground water monitoring, and discloses a shale gas development area deep underground water environment intelligent monitoring and early warning method. According to the method, a dynamic simulation model of a deep groundwater environment is constructed based on geological structure characteristics and historical environment data of a shale gas exploitation area, and a basic framework is provided for subsequent analysis. And then, acquiring a groundwater environment real-time monitoring data set including water quality concentration, water level fluctuation and soil seepage rate through a preset monitoring well array, and realizing comprehensive capture of groundwater environment information. Then, the real-time monitoring data set is imported into the dynamic simulation model for calibration, and it is ensured that the model can accurately reflect the actual situation. And then operating the calibrated model, simulating the migration process of the pollutants in the underground water, and outputting a risk prediction value. And finally, comparing the risk prediction value with a preset safety critical value, and generating an early warning instruction according to a result.

The utility model provides a large-scale navigation tunnel with escape channels capable of adapting to water level amplitude variation. The large-scale navigation tunnel comprises a plurality of escape channels, escape connecting trestle roads, a plurality of escape crawling ladders and an auxiliary traffic hole, the first end of the escape channel communicates with the large navigation tunnel, and the second end communicates with the auxiliary traffic tunnel. The first ends of the escape channels are located at different elevations. The side wall of the large navigation tunnel is provided with an escape connecting trestle road, and the escape connecting trestle road close to the first end of each escape channel is downwards provided with at least one escape ladder stand. The first ends of the multiple escape channels are located at different elevations, the escape connecting plank road is arranged on the side wall of the large navigation tunnel, the escape connecting plank road close to the first end of each escape channel is downwards provided with at least one escape crawling ladder, and the first ends of the multiple escape channels located at different elevations are communicated; under the condition of different water levels, people can escape in time through the escape ladder, the escape connecting gallery road, the escape channel and the auxiliary traffic hole in each hole section.

The invention relates to the technical field of environmental governance, and discloses an alpine region reservoir area water and sediment scheduling and water quality scenario prediction method comprising the following steps: river network segmentation and node classification; embedding ice kinetic parameters; transporting and correcting low-temperature silt; carrying out low-temperature adaptation on water quality parameters; performing dynamic boundary transfer and joint solution; and carrying out synchronous real-time iterative calculation. According to the method, ice kinetic parameters are embedded in a one-dimensional Saint-Venant equation, and the coupling relation between the thickness of the ice cover and the hydraulic element is dynamically solved by correcting the effective cross-section area in a continuous equation and the friction gradient in a momentum equation and adopting an iterative algorithm. Therefore, the water level fluctuation in the ice dam forming and outburst process is accurately described, and the problem that an existing model is insufficient in response to ice period hydraulic sudden change is solved.

The invention relates to a drainage device for hydraulic engineering construction, which comprises a vehicle body, a storage part connected to the vehicle body and a water inlet port connected to the storage part, the vehicle body is connected with a water suction pump, the water suction pump is connected with the water inlet port, and the water inlet port is used for pumping water; the storage part comprises a sliding part and an unfolding part connected to the sliding part, the water inlet port is connected to the unfolding part, and the unfolding part is used for lowering the water inlet port into water or moving the water inlet port to the recovery position so that the water inlet port can be stored on the vehicle body. The technical scheme has the beneficial technical effects that through the linkage design of the sliding part and the unfolding part, the water inlet port can be rapidly lowered and recycled underwater. Drainage operation can be completed only by operating the vehicle body, and construction efficiency is remarkably improved. The telescopic or folding structure of the unfolding piece can adjust the water entry depth of the water inlet port to adapt to different water level conditions, and the problem of drainage interruption caused by water level fluctuation is avoided.

The invention provides a karst collapse risk assessment method and device, electronic equipment and a storage medium. The method provided by the invention comprises the following steps: acquiring geological index data; according to the size of the line karst rate, determining the regional type of karst division, and forming a three-dimensional geologic model according to the regional type of karst, the thickness of a covering layer and the elevation of a stratum interface; judging whether the current area is a high deformation gradient area or not, judging whether the current area is a fracture structure control area or not, and judging whether the current area is a water level fluctuation sensitive area or not; forming a fuzzy fault tree structure, and performing Monte Carlo simulation on a grid to obtain a grid-level collapse risk probability; and determining a dynamic risk comprehensive index according to the grid-level collapse risk probability, the currently monitored covering layer pore water pressure and the line-of-sight deformation rate, and determining a risk level according to the dynamic risk comprehensive index. According to the method, real-time monitoring and dynamic analysis of surface deformation can be realized, and the accuracy of risk assessment can be improved.

The invention relates to the technical field of water pump control, in particular to an integrated water pump control system based on LoRa, which comprises a water level detection module used for monitoring a water level signal in real time, a timing control module used for setting a time parameter of water pump operation, and a microcontroller module used for controlling the water pump according to the water level signal and the set time parameter. And outputting a control signal to the execution module to control start-stop of the water pump. The water level signal and the timing parameter are jointly judged through the microcontroller module, and a delay control strategy is introduced, so that false triggering caused by instantaneous water level fluctuation is avoided, and the operation stability and the control reliability of the system are effectively improved. And the execution module adopts a relay control circuit and is provided with triode driving and follow current protection measures to ensure that the start-stop process of the water pump is safe and quick in response. A LoRa wireless communication protocol is adopted, long-distance and low-power-consumption data transmission is supported, and the system is especially suitable for automatic control requirements in remote areas or agricultural irrigation and other network-free environments.

This invention discloses an ecological scheduling method and its application based on fish reproductive needs, belonging to the field of environmental protection technology in water conservancy and hydropower engineering. This invention specifically addresses the challenge of protecting fish that lay adhesive eggs. By establishing a population reproductive characteristic adaptation domain model (Ω(pi)), it quantifies for the first time the dynamic response relationship between water level fluctuations (proximal factor) and water temperature and flow velocity (terminal factor), breaking through the limitations of traditional ecological scheduling that only focuses on a single hydrological indicator. It achieves multi-objective collaborative optimization, balancing engineering needs such as flood control, power generation, and water supply with ecological protection through a dynamic adjustment model of ΔH(t). Through proximal factor monitoring and terminal factor feedback, it corrects the water level adjustment ΔH(t) in real time, improving the response speed compared to traditional methods. Furthermore, by dividing the control period according to the key processes of the fish life history, the water level fluctuation limit during the spawning period is more precise, providing an innovative technical method for ecological scheduling in water conservancy projects.

The invention provides a multi-factor coupling gravity retaining wall reliability evaluation and optimization method, and belongs to the technical field of geotechnical engineering. The method comprises the following steps: constructing a physical model containing parameters such as self weight, friction coefficient, height, filling weight and compaction degree; establishing a multi-factor dynamic coupling model which comprises a water level time-varying model, an earthquake coefficient probability model and a compactness degradation model; constructing a limit state function integrating the soil pressure, the water pressure and the seismic inertia force; calculating a time-varying failure probability through random numerical simulation; the importance degree of each factor is quantitatively evaluated by adopting standardized indexes; optimization measures such as compaction degree improvement, water level fluctuation reduction and dead weight increase are put forward, and the effect is verified. According to the method, the problems of single-factor analysis, static modeling, importance evaluation and the like of a traditional method are solved, dynamic coupling analysis of three factors of earthquake, water level fluctuation and compactness degradation is achieved, and a scientific basis is provided for design and maintenance of the gravity retaining wall.

The invention provides a high-fidelity generalization method and system for plain river network water flow simulation, and relates to the technical field of model simulation. The method comprises the steps that a node river network is constructed, constructing a physical river network topological structure comprising a main river channel node, a river reach, a regulation and storage node and a virtual river reach; a dynamic parameter configuration step: configuring hydraulic parameters for the section in the physical river network topological structure; a boundary coupling step: distributing water catchment unit runoff obtained by calculation of the hydrological model to corresponding regulation and storage nodes as boundary input conditions; and a simulation execution step: performing hydrodynamic simulation calculation based on the constructed physical river network topological structure, the configured hydraulic parameters and the distributed boundary input conditions. Through a high-low water level dynamic parameter method, a hydrodynamic model parameter calibration method is optimized, especially for rivers with large water level fluctuation amplitude, and the accuracy of simulation results is ensured.

The present application relates to water level data processing technical field, specifically to water level data acquisition and processing system based on internet of things, system includes trend identification module, sampling frequency modulation module, data encapsulation module, abnormal elimination module, instruction linkage module.In the present application, through analyzing continuous water level change trend, trend identification is realized and sampling frequency is dynamically adjusted, so that sampling interval and actual water level fluctuation state are matched, response sensitivity of water level data and timeliness of data acquisition are improved, time stamp index mechanism and bidirectional mapping structure are used to construct unified encapsulation format, integrity of water level data structure and convenience of index management are enhanced, sudden break point is identified through water level amplitude difference and data is stored in segments, data stability and sudden situation identification ability are improved, and adaptive ability of water level information processing, maintaining level of data continuity and response efficiency to sudden abnormality are overall improved.

The invention discloses a simulation test device for reservoir water level fluctuation erosion. The device comprises a water tank, a water inlet and outlet system, a wave making module, a sample tank and a data acquisition system, the water tank is of a cuboid structure, a water outlet is formed in the bottom, and water level scales are marked on the side wall. The water inlet and outlet system comprises a water inlet pipe which is connected with an external water tank and provided with an electromagnetic valve and a flow meter. A water outlet pipe is arranged on the other side of the bottom of the water tank and connected with a water outlet, and the water drainage rate is adjusted through a variable-frequency water pump; the wave making module comprises a wave making machine, the wave making machine is installed at one end of the water tank, a programmable servo motor is adopted to drive a push plate, and the wave frequency of 0.5-5 Hz and the wave height of 5-30 cm are supported to be adjusted. Dynamic water level coupling waves are achieved, real-time linkage control over water level rising and falling and wave parameters is achieved for the first time, and the problem that a traditional device is single in working condition is solved; and modular design and high-precision data acquisition are also realized.

The invention relates to the technical field of fire-fighting management and control, and particularly discloses a water level detection and fire-fighting identification method and system based on automatic control, and the method comprises the steps: obtaining the temperature and acoustic multi-modal data of a fire-fighting pipe network, building a pipeline temperature gradient model, and predicting the temperature distribution of each section through combining the environment and the medium temperature; and extracting ice crystal nucleation and fluid anomaly characteristics at low temperature. Based on the temperature gradient, the acoustic spectrum, the water level fluctuation rate and historical data, a multi-parameter fusion congelation risk assessment model is constructed, and risk indexes are calculated and graded; constructing a congelation risk and firelight early warning linkage control strategy, and adaptively adjusting a firelight detector threshold value and a sampling frequency according to a risk level; when the risk reaches an early warning value, partitioned heating is implemented, a temperature recovery curve and water level stability are collected in real time as feedback, model iterative optimization and closed-loop control are achieved, early warning accuracy is improved, energy consumption is reduced, and reliable operation of a fire fighting system is guaranteed.

The application provides a multi-dimensional diagnosis method for seepage state of porous media based on dynamic evolution of lag time, and belongs to the field of dam safety monitoring; solves the problems of strong hysteresis, many interferences and poor applicability of existing dam seepage monitoring; the method comprises the following steps: obtaining long sequence reservoir water level and piezometric tube water head monitoring data of a target porous medium and preprocessing; calculating the reference memory duration of the lag response of the piezometric tube water head to the reservoir water level fluctuation, and establishing a normal state baseline; extracting a dynamic lag time sequence; calculating the scaling index sequence of each piezometric tube water level sequence as a memory persistence index; calculating the transfer entropy of the reservoir water level to the piezometric tube water head as a hydraulic information transmission strength index; establishing a reservoir water level-lag response time function in a reference period, stripping the geometric effect, extracting the net medium effect, establishing a multi-dimensional joint criterion, determining the seepage state of the target porous medium and dividing the degradation grade; and the application is applied to dam seepage diagnosis.

The application discloses a kind of fish suitable flow habitat spatio-temporal distribution calculation method and system, through basic data collection pre-processing, target fish life history and reservoir scheduling spatio-temporal matching, cascade reservoir dynamic backwater length calculation, habitat suitability determination of dehydration river section, spatial superposition between cascades, habitat time dimension accounting and spatio-temporal matrix construction, planning scheme compliance verification and the like steps, realize the spatio-temporal dynamic accurate delineation of the habitat of native fish suitable flow after cascade development.The application fully considers the water level fluctuation and backwater dynamic change of reservoir within a year, the differentiated habitat needs of different life history stages of target native fish, solves the industry pain points of traditional method such as insufficient accuracy, disconnection with protection target and lack of time dimension evaluation, and can provide scientific and accurate technical support for basin hydropower development layout optimization, ecological protection measure formulation and planning scheme environmental impact assessment comparison.

This invention discloses an integrated slope-fitting truss-type water level gauge installation device for open channels in the field of water monitoring technology. It aims to solve the problems of existing water level gauge installation devices, which are typically fixed to the top of a slope. Due to significant water level fluctuations, it is inconvenient to adjust the distance between the water level gauge and the water surface, and the structural stability of the installation device is poor, making it susceptible to deformation due to wind. The device includes a slope, a guide rail, and two slope-fitting trusses. The slope-fitting trusses are slidably connected to the guide rail via a sliding mechanism. A positioning mechanism is provided at the top of the guide rail. Both slope-fitting trusses are rotatably connected to a connecting shaft. A base is provided at the top of the connecting shaft, and the water level gauge is mounted on the base. This invention uses the slope-fitting trusses to move the water level gauge closer to or further away from the guide rail, making the water level gauge suitable for monitoring different water levels. Furthermore, the guide rail, slope-fitting trusses, and connecting shaft form a triangular shape during operation, resulting in structural stability and minimal deformation.

The application discloses an adaptive water level water taking device, which comprises a water conveying assembly, a water taking assembly, a water inlet assembly and a guide assembly. The water conveying assembly comprises a first flexible pipe body, a rigid pipe body and a second flexible pipe body which are sequentially connected. The water taking assembly comprises a water inlet float and a counterweight float. The adaptive water level water taking device has a source vibration reduction effect and can be modularly prefabricated. The device solves the problem that vibration of an existing suspended water taking device under water level fluctuation and water flow impact can cause pipeline stress concentration, fatigue damage of a connecting part and further decline of water taking system stability. Meanwhile, the device can freely increase or decrease the number of flexible pipe sections according to specific water area working conditions, and the overall structure is detachable, facilitating construction and installation. The device not only attenuates water flow pulsation and vibration energy caused by equipment operation from the source of vibration, but also solves the problem of displacement incoordination between a suspended water inlet and a rigid pipe at a shore end to a certain extent. Meanwhile, the device achieves the effect of protecting the water conveying system by limiting the transmission path of vibration to the rigid pipe section.

The invention relates to the technical field of water conservancy projects, in particular to an earth and rockfill dam safety state instant evaluation system and method based on multi-source data. The method comprises the following steps that seepage simulation calculation is conducted on a target earth and rockfill dam on the basis of a preset multi-source working condition parameter combination, an earth and rockfill dam seepage basic data set is constructed, and the earth and rockfill dam seepage basic data set comprises a seepage seepage line data set and a single-width seepage data set; determining a seepage monitoring point position of the target earth and rockfill dam based on the seepage infiltration line data set; and establishing a parameterized relational expression set based on the seepage infiltration line data set and the single-width leakage data set. According to the method, through the deviation comparison between the real-time monitoring data and the multi-state parameter model, the normal water level fluctuation and the premonition of the seepage-proofing body damage can be accurately distinguished, and the immediate identification and early warning of the early symptom of the progressive damage can be realized.

According to the technical scheme, the quantitative feeding device is characterized in that the quantitative feeding device comprises a buoyancy frame, a plurality of buoyancy barrels are fixedly installed on the bottom face of the buoyancy frame, a material barrel is fixedly installed in the buoyancy frame, and the outer circle wall face of the material barrel is fixedly sleeved with a fixing ring; the throwing assembly is arranged on the outer circle wall face of the material barrel and used for throwing baits for deep-sea breeding, the throwing assembly comprises a butt joint table, the butt joint table is arranged on the outer circle wall face of the fixing ring, and through the linkage rotation design of the fixing table and the butt joint table, the vertical height difference between the fixing table and the butt joint table caused by water level fluctuation is automatically compensated; it is ensured that a key butt joint part clamping column and a groove are always kept aligned on a space track, rigid butt joint obstacles caused by water level fluctuation are avoided, a cam-spring mechanism is driven through movement of a recovery steel rope, and the clamping column generates high-frequency micro-amplitude vibration.

The submerged plant seedling growing and planting device comprises a bottom pile connecting structure, an outer protection overflowing surrounding net body, a positioning extending connecting frame body structure and a plant planting frame body structure, and the bottom pile connecting structure comprises a connecting pile body seat, a plurality of pile sleeving holes and a lateral connecting plate structure. The positioning extension connecting frame body structure comprises an assembling transverse frame, an assembling longitudinal frame and a limiting fixing partition plate body. The structure puts forward certain requirements on different methods such as screening and pruning, seedling weight balancing and planting of vallisneria spiralis in the flood discharge river channel in the mountainous area, and the survival rate of the vallisneria spiralis in the flood discharge river channel in the mountainous area can be greatly improved by adopting the device. The block stones for balancing the weight of the seedlings mainly play a role in anchoring, the mountain river channel is convenient in material taking and simple in construction, and the construction cost is basically not increased, so that the method is more suitable for the mountain river channel. The water flowing speed of the mountain river channel is large, the water level fluctuation is large, and the anti-floating performance and the anti-scouring performance of the submerged plants planted through the device are greatly improved.

The utility model discloses a gate control system based on ecological balance, which comprises a concrete foundation structure arranged on a river bank, barrages are respectively arranged on the two sides of the concrete foundation structure close to the end parts, a plurality of uniformly and vertically arranged support frames are arranged on the concrete foundation structure at intervals, and the barrages are arranged on the concrete foundation structure. A gate is arranged between the supporting frames; a water level sensing device and a control box are arranged on the supporting frame and used for opening or closing the gate to achieve water level control. By means of the gate automatic control system based on water level monitoring, on one hand, the gates can be controlled to be gradually opened according to the water level increase, one or more gates can be controlled to be automatically opened at the same time, and the daily operation and maintenance workload and cost of the gates can be reduced; on the other hand, by arranging the barrages on the two sides, a certain upstream water depth and fresh water amount can be maintained, water level fluctuation is reduced, and ecological balance is facilitated.

The invention discloses a plateau lake ecological water demand data analysis system and method, which can improve the space-time consistency of multi-source heterogeneous data, accurately calculate the water volume change caused by freeze-thaw evaporation, and dynamically identify the critical state of an ecological system. By synthesizing the multi-time scale water demand and evaluating the damage risk, early warning support is provided for coping with sudden meteorological events. A double-layer optimization scheduling mechanism is adopted, balance of multi-target water demand under an annual scale is ensured while water level fluctuation is responded at an hour level, and operable decision boundary conditions are provided for emergency scheduling by generating a dynamically adjusted water demand curve and accurately quantifying water shortage risk probabilities under different time scales. And ecological irreversible damage caused by prediction deviation is avoided.

The invention belongs to the technical field of intelligent monitoring, and particularly relates to a mountainous area building underground structure water control anti-floating system based on intelligent monitoring, which comprises a multi-mode sensing module, an AI-driven prediction decision module and an edge-cloud cooperative control module, four-dimensional synchronous monitoring of the underground water level, the water pressure, the seepage direction and structural deformation is achieved through the multi-mode sensing module, an underground water level-geology-weather coupling prediction model is constructed through the AI-driven prediction decision module, a water level change curve and an anti-floating safety coefficient in the future 72 hours can be accurately output, a reliable basis is provided for system control, and the system reliability is improved. And secondly, the edge-cloud cooperative control module realizes data preprocessing through an edge computing node, a cloud platform operates a multi-objective optimization algorithm, a drainage pump start-stop threshold value and a seepage control valve opening degree are dynamically adjusted, energy consumption, drainage efficiency and underground water level fluctuation amplitude are optimized, and the overall operation efficiency of the system is improved.

The invention discloses an under-dam wharf water level amplitude prediction method under a non-constant flow condition, and particularly relates to the technical field of water level prediction.The method comprises the steps that according to river topographic data of the under-dam wharf position, flow information is obtained through a hydrological information issuing platform of a hydropower station, and related data influencing the under-dam wharf water level amplitude are collected and preprocessed; comprising the following steps of performing qualitative analysis according to a relationship between related data influencing the water level variation of the wharf under the dam and the water level variation of the wharf, further obtaining a prediction model of the water level variation of the wharf under the dam, and outputting a prediction result so as to facilitate visual analysis and decision-making. The method is easy to realize and use, is suitable for field rapid application, can rapidly respond under a real-time monitoring condition, adapts to dynamic characteristics of water level change, realizes water level amplitude variation prediction of a near-dam wharf, and reduces shipping and wharf operation risks caused by non-constant flow water level fluctuation.

The hydro-fluctuation belt rock mass micro-plastic sampling device comprises a housing, a water tank, a sampling chamber and a handheld rod, the handheld rod is connected with the top face of the housing, a sealing ring is fixed to the bottom face of the housing, the sampling chamber is arranged in the housing and connected with the housing through a connecting rod, and a water inlet pipe and a water pumping pipe are arranged on the housing on the two sides of the sampling chamber respectively. The water inlet pipe and the water pumping pipe are respectively communicated with the water tank and the outside through hoses, a draining pump and a water pump are respectively arranged on the water inlet pipe and the water pumping pipe, two sides of the sampling chamber are respectively communicated with an electromagnetic valve, and a sampling ball is arranged in the sampling chamber. According to the invention, the micro-plastic is stripped through ultrasonic waves, the sealed space is prevented from pollution, non-destructive and amphibious sampling of the rock micro-plastic in the hydro-fluctuation belt is realized, and the problems that the traditional rock micro-plastic sampling equipment is deficient, the sampling period is long, the sampling difficulty is high, the pollution is easy and the transportation is difficult are solved.

The invention discloses a wave dissipation structure and a revetment, and relates to the field of river revetments. The wave dissipation structure comprises a bank protection retaining wall and a wave dissipation water tank, when the water level of a river channel changes, water flows in and out of the containing space through the water permeable holes, the wave dissipation water tank conducts buoyancy self-adaptive lifting motion, the wave dissipation channel continuously aligns to the wave face, wave energy is dispersed and consumed by floating damping of the wave dissipation channel and the wave dissipation water tank, and therefore the purpose of reducing bank protection impact is achieved. Water flow enters the containing space through the water permeable holes to consume energy and is secondarily broken by the wave dissipation channels of the floating water tank, and the scouring force of ship traveling waves is remarkably weakened. The self-adaptive water level fluctuation design solves the problems that a traditional retaining wall with the fixed height is insufficient in wave dissipation at a high water level and shields sight at a low water level; the water area and the land landscape plant area are communicated through the wave dissipation channel, the ecological connectivity is improved, water exchange and biological migration are promoted, and the ecological blocking problem of a hard structure is solved.

The invention provides a reservoir area soil bank slope bank collapse width prediction method, and relates to the technical field of water conservancy and hydropower engineering, and the method comprises the following steps: measuring the current terrain section of a bank slope, obtaining the bank slope height, slope angle and bank slope terrain line before reservoir water storage, and obtaining the characteristic water level of reservoir water storage; drawing an engineering geological profile map; the bank slope soil body is sampled, and physical and mechanical indexes of the bank slope soil body are measured through a test; and drawing a bank collapse width schematic diagram, and predicting the bank collapse width of the bank slope. According to the method, the four-section method bank collapse prediction model is established, the influence of the water level amplitude variation area and stormy waves on the stability of the reservoir bank is fully considered, the problem that the actual bank collapse width is inconsistent with the prediction result after water storage of the reservoir in the prior art is solved, and meanwhile the method has the advantages of being simple, easy to implement, high in reliability and accurate in prediction result.

The utility model discloses a water quality and level monitoring device. The water quality and level monitoring device comprises a pipe joint, a floating plate assembly, a water level monitoring unit and a water lifting assembly, the pipe joint comprises a plurality of sleeves with the diameters gradually reduced, the sleeves can be contained in the sleeves with the diameters larger than those of the sleeves and making contact with the sleeves, and a cavity is formed in the pipe joint. The floating plate assembly is detachably arranged at the lower end of the pipe joint, and the floating plate assembly can float on the water surface and support the pipe joint. The water level monitoring unit is erected on the ground or a wellhead and detachably connected with the upper end of the pipe joint, and the pipe joint floats along with water surface fluctuation and can be monitored through the water level monitoring unit. The water lifting assembly is detachably connected with the pipe joint and used for pumping water out of the bottom. The telescopic pipe joint extends downwards to the water surface, the whole pipe joint is poked up and down along with the water surface through the floating plate assembly, the water level monitoring unit with the fixed distance from the ground moves relatively, and water level fluctuation can be visually observed through the water level monitoring unit.