837 results about "Siltation" patented technology

The invention relates to the technical field of energy efficiency management, in particular to a water conservancy sensing system based on edge computing. The system comprises the following modules: a riverway edge sensing module, a water conservancy characteristic analysis module, a sediment migration simulation module and a deposition scouring early warning module. Constructing a river channel water conservancy sensing network; performing real-time water conservancy monitoring data acquisition according to the river channel water conservancy sensing network to obtain river channel water conservancy sensing data; performing three-dimensional flow field model processing on the river channel water conservancy sensing data to obtain a three-dimensional sediment flow field network model; carrying out particle flow field simulation on the three-dimensional sediment flow field network model to generate sediment migration space-time distribution data; and according to the sediment migration space-time distribution data, carrying out siltation and scour area identification, and uploading the siltation and scour area data to a cloud platform through an edge computing node to carry out abnormal event alarm so as to obtain river section monitoring data. According to the invention, real-time, accurate and intelligent monitoring and early warning of the sediment deposition and scouring process of the river channel are realized.

The invention discloses a flood discharge gate opening degree real-time automatic distribution method for a centralized control center, and relates to the technical field of water conservancy gate control, and the method comprises the steps: setting a monitoring point in each sub-region, and collecting the mechanical state, the vibration stress parameter and the surrounding geological parameter of a flood discharge gate, so as to construct a gate wear index Msz; therefore, the state of the gate can be monitored in real time, and abrasion and fault problems can be found and early warned in time. And establishing a sub-region prediction model, extracting water flow characteristics and river volume characteristics, calculating an average water flow index Slzs and a regional river clogging index Ydzs of each sub-region, correlating the obtained predicted river load index Fzz, and performing evaluation. And setting a first difference threshold value C1 and a second difference threshold value C2, calculating and obtaining a load difference value FCz according to the predicted river load index Fzz and the load threshold value R, generating an opening instruction, and setting a priority distribution mechanism. The opening degree of the gate is optimized, and the accuracy and response speed of flood discharge control are ensured.

The invention relates to the technical field of sewage treatment, in particular to a dynamic simulation method for a lake and reservoir sewage sludge deposition process. The method comprises the following steps: collecting lake and reservoir hydrological station data, carrying out abnormal value filtering and missing value completion, generating a complete hydrological sequence, carrying out water flow state subdivision to obtain flow state hierarchical data, reconstructing a multi-layer hydrodynamic field, forming a hydrological dynamic field set, carrying out suspended matter analysis, and obtaining a hydrological dynamic field model; the method comprises the following steps of: extracting sewage sludge data, deconstructing transportation characteristics of the sewage sludge data, generating transportation dynamic data, performing water body stress tensor decomposition to obtain stress distribution data, performing substance transportation simulation on a complete hydrological sequence by using the stress distribution data, establishing a multi-scale sedimentation dynamic model, acquiring water body sedimentation change data in real time, comparing the water body sedimentation change data with the model, and if inconsistency exists, judging whether the water body sedimentation change data is consistent or not. If yes, the model is finely adjusted in real time, and an optimized multi-scale deposition dynamic model is generated. The more accurate dynamic simulation method for the lake and reservoir sewage and sludge deposition process is achieved.

The invention provides a hydro-junction water level adjusting method and system. Wherein the sediment deposition space-time atlas containing the sedimentary gradient is constructed and periodically corrected through scanning of an underwater robot and synchronous acquisition of satellite remote sensing data. A radar array is deployed at a bend section of a flood discharge channel, and vector distribution of a three-dimensional sediment flow velocity field is analyzed by using multi-frequency pulse signals. Through correlation analysis of the dynamic coupling sedimentary gradient and the flow velocity field, a correlation area of flow velocity sudden change and sediment deposition is accurately identified, and a constraint condition set including coordinate positioning and a flow-sediment matching rule is established. And in combination with real-time water level monitoring data, calculating and generating a dynamic adjustment parameter sequence of the opening degree of the flood discharge gate by using a constraint condition set, thereby realizing accurate regulation and control of the water level. According to the technical scheme, the flood discharge parameters are intelligently optimized, the water level of the hydro-junction can be accurately regulated and controlled, the sediment deposition problem of a high-sediment-content water area is effectively relieved, and safe operation and flood control efficiency of the junction are guaranteed.

The invention discloses a high-precision flow online monitoring device and method for a siltation section, and belongs to the technical field of hydrological monitoring. The device comprises a sensing terminal, an edge terminal and a mounting mechanism, the sensing terminal is integrated with an upper and lower section layered speed measurement module, an underwater distance measurement module, a first absolute pressure type water level measurement module and an attitude and temperature sensor, and vertical section flow velocity data is obtained by receiving water body reflection signals in a time-sharing manner; and the dynamic deposition section area is corrected in real time in combination with ultrasonic ranging. And the edge terminal compensates water level measurement data by using atmospheric pressure, and calculates the flow through fusion of a telemetering module. The installation mechanism supports fixed or telescopic installation, and the height of the installation mechanism is automatically adjusted according to the distance between a deposition layer and equipment. The method comprises the steps of dynamically correcting the section, calculating the flow through layered integration and compensating errors of multiple sensors, the problems of large area deviation, high operation and maintenance cost and the like caused by sedimentation in a traditional flow measurement technology are solved, and high-precision online monitoring under the high-sand-content complex flow state is achieved.

The invention relates to the technical field of reservoir dam safety monitoring, and discloses a reservoir dam siltation dynamic monitoring and early warning system. Multi-dimensional sensing node arrays of the system are arranged at key positions of a dam body structure and a reservoir area, and sediment thickness distribution data, water flow velocity field data and sediment concentration gradient data are synchronously collected. And the edge computing node receives the original monitoring data, executes data cleaning and space-time alignment processing, and generates a standardized siltation feature data set. And the cloud analysis platform receives the data set, calculates a deposition evolution trend matrix through a space-time coupling prediction model, and outputs a reservoir area deposition risk level distribution map. And the dynamic visualization engine analyzes the risk level distribution map, generates a three-dimensional dynamic deposition situation model, and marks the space coordinates of the abnormal deposition area. And the early warning decision center generates a graded early warning instruction set according to the space coordinates of the abnormal region, and triggers a corresponding emergency response strategy.

The invention discloses a channel siltation probability early warning method and system for water flow feature recognition, and relates to the technical field of channel maintenance, and the method comprises the steps: obtaining channel characteristic parameters, inputting the channel characteristic parameters into an interaction knowledge graph, and determining a key water flow feature index set; performing random feature combination based on the index set, screening K coordination feature groups in combination with historical operation data, training K reference deposition prediction models, and performing integration to generate a deposition probability prediction model; collecting real-time water flow data through a sensor, processing the data and inputting the data into the model to predict the channel siltation probability; if the prediction result meets the early warning condition, siltation early warning is triggered. Therefore, the technical effects of improving the early warning perspectiveness, reducing the misjudgment rate and enhancing the complex environment adaptability are achieved.

The invention relates to the technical field of coast engineering, in particular to an estuary sandy coast erosion and deposition simulation system based on the coupling effect of flood peak runoff, waves and tide, which comprises a training data generation module, an intelligent agent model construction module, a dynamic prediction engine module and a scene evaluation module. The training data generation module is used for outputting a hydrodynamic state field, a wave characteristic field, a bed surface shear stress field and a bed surface elevation variable quantity by utilizing a traditional numerical model to construct a training data set; the intelligent agent model building module is based on a deep learning network and introduces physical constraint loss function training to obtain an intelligent agent model; the dynamic prediction engine module loads the trained deep learning network to realize bed surface elevation variation prediction and update terrain boundary conditions; and the scene evaluation module executes erosion and deposition evolution simulation according to different hydrological boundary condition combinations and extracts terrain evolution data to quantitatively evaluate the coast stability and the channel deposition risk. The invention relates to the field of estuary dynamic landform simulation and coast engineering.

The invention discloses a near-shore wave-flow field-sediment coupling simulation method considering a wave breaking nonlinear effect, and belongs to the field of near-shore hydrodynamics, and the method comprises the steps: inputting WRF high-resolution wind field, tide boundary conditions and water depth information, and initializing a wave module, a flow field module and a sediment module; calculating local wave breaking dissipated energy by adopting an improved wave breaking energy dissipation formula to obtain a wave energy density spectrum and a breaking probability; a near-shore flow field is calculated under radiation stress nonlinear correction, and hydrodynamic boundary conditions are updated; calculating sediment suspension and deposition by using a coupling diffusion coefficient, and updating sediment concentration distribution; waves, flow fields and sediment are mutually coupled through loop iteration, and coastal wave-flow field-sediment simulation is achieved under extreme conditions such as typhoons, storm surge and strong storm waves. The method can improve the prediction precision of the wave height, the flow velocity and the sediment concentration under the condition of offshore strong storm waves, and is used for typhoon storm surge prediction, harbor basin deposition evaluation and offshore ecological environment management.

The invention belongs to the field of desilting robots, and particularly discloses a suction type underground drainage pipeline intelligent desilting robot and a desilting method.The desilting robot is composed of an in-pipe integrated robot and an inspection well box; the in-pipe integrated robot comprises a hardware structure and a software module, the hardware structure comprises a mechanical assembly, a circuit assembly, a sediment breaking assembly, a sediment conveying assembly and a machine body, and the software module comprises a pipeline sediment intelligent diagnosis module. A drainage pipeline siltation diagnosis module based on a deep learning network is arranged in a deep learning development board to achieve siltation diagnosis, and a central instruction receiving and sending module is used for sending desilting operation instructions to a nail surface type electric hammer, a high-pressure water spray head, a siltation crushing cutter, a silt pumping pipe, a silt discharging pipe and a vacuum sewage suction pump. According to the invention, automatic and intelligent operation of siltation diagnosis and desilting of the underground drainage pipe network in a certain maintenance area can be realized, the efficiency is greatly improved, personnel do not need to enter the pipeline, and the danger is greatly reduced.

The invention belongs to the technical field of water conservancy monitoring, and discloses a water conservancy water level monitoring device and method, and the method comprises the steps: a monitoring point arrangement module of a monitoring mechanism reasonably arranges the number and positions of monitoring points; the flow velocity monitoring module monitors the water velocity; the meteorological data acquisition module acquires meteorological data; the echo sounder emits sound waves, and the water depth is calculated according to the sound wave propagation time and the sound velocity in water; the pressure water level gauge, the laser water level gauge and the radar water level gauge monitor the water level of water conservancy. The echo data analysis module analyzes the echo data; the comprehensive analysis module comprehensively analyzes the water level; the predictive analysis module predicts a water level trend and potential risks. The water level of water conservancy is monitored through various water level gauges, cross validation and high precision are achieved, and the sediment deposition thickness is accurately calculated by analyzing echo data; the comprehensive analysis module comprehensively evaluates the water level; the prediction analysis module integrates various monitoring equipment data and meteorological data, and predicts the water level trend and potential risks.

The invention provides an immersed tube tunnel underwater slope protection silting prevention system and a construction method thereof.The immersed tube tunnel underwater slope protection silting prevention system comprises a foundation trench, a side slope is arranged in the foundation trench, the immersed tube tunnel underwater slope protection silting prevention system comprises a plurality of blocking units, each blocking unit comprises a silting prevention plate and a plurality of limiting pipes, and the limiting pipes are arranged on the side slope. The silt prevention plate is laid on the side slope, a plurality of accumulation channels penetrating in the vertical direction are formed in the silt prevention plate, and the accumulation channels are used for collecting silt; the multiple limiting pipes are inserted into the side slope in the vertical direction and connected with the silt prevention plate. According to the immersed tube tunnel underwater slope protection siltation prevention system, silt in water flow is intercepted through the accumulation channel on the siltation prevention plate, when the silt falls onto the siltation prevention plate, the silt can be deposited in the accumulation channel, the deposited silt and a soil body embedded in the accumulation channel are fused into a whole, the siltation prevention plate can be reversely fixed, the stability of a side slope is protected, and the service life of the side slope is prolonged. The sludge utilization rate is improved.

The invention discloses an irrigation area ditch drainage-farmland waterlogging simulation evaluation method. The method comprises the following steps: S1, obtaining meteorological and hydrological data, DEM data, drainage facility vector data and land utilization classification data of a target area; s2, generalizing a drainage system of the irrigation area, and generating nodes, drainage channels and sub catchment area. Shp files; s3, converting the. Shp file into an. Inp file, constructing a parameterized model, and performing parameter calibration and verification on the model; s4, simulating waterlogging conditions under different rainfall and channel siltation situations; s5, extracting overflow node data, and performing flood inundation analysis; and S6, generating a flood risk density map according to the overflow node data. The invention further discloses an irrigation area ditch drainage-farmland waterlogging simulation evaluation system. According to the irrigation area ditch drainage-farmland waterlogging simulation evaluation method and system disclosed by the invention, the problem that ditch drainage simulation and farmland waterlogging risk evaluation cannot be carried out under an irrigation area waterlogging disaster in the prior art is solved.

An intelligent dredging system for a high-piled wharf and a control method thereof are provided, and the system includes an intelligent monitoring-decision control subsystem and a decentralized high-pressure water disturbance subsystem. The intelligent monitoring-decision control subsystem is composed of a high-precision pile-foundation sediment siltation warning device, a tidal monitoring device and a control terminal. The decentralized high-pressure water disturbance subsystem is composed of a water spraying device, a cable and a multi-loop power distribution device.

The invention discloses a channel dredging intelligent monitoring system based on Beidou positioning. The system comprises a data fusion module, a dynamic grid module, a coverage analysis module, a siltation prediction module and a monitoring generation module. The data fusion module collects channel data through Beidou positioning and a multi-source sensor, and generates a real-time three-dimensional terrain model; the dynamic grid module divides dynamic grids according to the three-dimensional terrain model and dredging equipment parameters; the coverage analysis module calculates the coverage degree with the dynamic grid by using the operation track of the dredging equipment, and performs identification to obtain missing area data; the siltation prediction module predicts siltation distribution data by using a neural network model based on layered flow velocity data in the channel data and a historical siltation database; and the monitoring generation module fuses the three-dimensional terrain model, the missing area data and the deposition distribution data to generate a dredging monitoring report. Intelligent monitoring of channel dredging operation is achieved, and the monitoring efficiency and accuracy are improved.

The invention provides a watershed water right marketization configuration method and device under water-sediment coupling constraint, and the method comprises the steps: constructing a water-sediment coupling constraint model which comprises a plurality of constraint conditions, and the constraint conditions are used for constraining the sediment transportation and deposition conditions in a water transportation process; establishing a multi-target water right optimization configuration model based on the importance of various water consumption subjects in the drainage basin and a preset water right distribution strategy; solving the multi-objective water right optimal configuration model by adopting a multi-objective evolutionary algorithm and constraint conditions, and generating a candidate water right configuration solution set; selecting a feasible solution set from the candidate water right configuration solution set based on constraint conditions; scoring each solution in the feasible solution set, and sorting according to a scoring result; and obtaining an optimal water right configuration solution set based on a sorting result. According to the method, the safety and ecological requirements of a watershed water-sediment system can be guaranteed while the water right is reasonably distributed.

The invention relates to the technical field of bank slope erosion and deposition monitoring, and discloses wharf bank slope erosion and deposition monitoring equipment and an identification method. The sonar depth finder is installed at the top of the outer wall of the supporting column and used for detecting the water level depth; the water flow Doppler velocimeter is installed at the bottom of the outer wall of the supporting column and used for detecting the flow speed and the flow direction of water flow; the sensor group is mounted in the middle of the outer wall of the support column and is used for detecting the temperature, turbidity and salinity of the water flow; and the controller is mounted at the inner top of the supporting column and is used for receiving and calculating information of the sensor group, the sonar depth finder and the water flow Doppler velocimeter. By detecting the water depth, the water flow speed, the water flow direction, the water temperature, the turbidity and parameters, the controller receives, preprocesses, calculates and analyzes information, and therefore real-time monitoring of the water area state is achieved, scour and siltation areas are accurately predicted, early warning is given out in time, decision support is provided, and the safety and maintenance efficiency of bank slope facilities are improved.

The invention discloses a tunnel drainage pipeline blockage detection analysis and dredging scheme generation system, and relates to the technical field of drainage pipeline blockage detection, and the system specifically comprises a sediment deposition risk quantification module which periodically collects the multi-source data of a tunnel drainage pipeline, and defines a sediment deposition risk score by quantifying a surrounding rock risk score and a design risk score, and generates a dredging scheme; the blockage grading detection module is used for integrating the sediment deposition risk score and the blockage related data, setting dynamic data acquisition duration and a blockage degree index, and carrying out blockage grading detection on the drainage pipeline according to the blockage degree index, and the dredging scheme generation module is used for generating a dredging scheme on the basis of a single-section pipeline blockage grading detection result. According to the system, the blockage influence of multiple sections of pipelines of the drainage pipe section is comprehensively evaluated, a tunnel drainage pipeline dredging scheme is generated according to different conditions, and the system implements regional collaborative dredging on continuous high-risk pipe sections through multi-source data fusion, quantitative analysis and dynamic decision, so that the adjacent pipe sections are prevented from being deposited again after single-section dredging, and repeated operation is reduced.

The invention discloses a hub, an impeller, a fan and a vehicle. The hub comprises a mounting part. The two sides of the mounting part in the axial direction of the mounting part are an air inlet side and an air outlet side respectively; a pollution discharge surface is formed on the mounting part, and is obliquely arranged in the direction from the air inlet side to the air outlet side. Therefore, the pollution discharge surface is arranged on the mounting part, so that sand and dust on the air inlet side and the air outlet side can flow away along the pollution discharge surface, deposition of the sand and dust in the mounting part is avoided, and the situation of clamping stagnation or abnormal sound caused by uneven stress of the hub due to deposition of the sand and dust on the hub is reduced.

The invention discloses a slope protection device and method for rock mass collapse, and belongs to the field of slope supporting. A slope protection device for rock mass collapse comprises a concrete frame and further comprises a bottom base, a drainage structure, a first water baffle, a top end, a cleaning structure and a buffer structure, the bottom base is fixed to the bottom end of the concrete frame, the first water baffle is arranged on one side of the bottom end of the bottom base, the top end is arranged on one side of the drainage structure, and the cleaning structure is arranged in the drainage structure. The bracket is arranged on one side of the concrete frame; a driving motor drives a chain to move through a second chain wheel, so that a scraping plate scrapes deposits to move and leave the interior of a drainage channel, meanwhile, a spiral impeller pushes the deposits on the two sides to move to the bottom of the scraping plate, the drainage channel cleaning function is achieved, and the interior of the drainage channel is kept unblocked by automatically cleaning the drainage channel; the bottom of the device is not prone to being soaked in rainwater for a long time, and the defect that a drainage channel is prone to being blocked in the prior art is overcome.

The invention discloses a riverway dredging method which comprises the following steps: dynamically scanning a riverway along a spiral propulsion path, and obtaining riverbed topographic data and sediment thickness in real time; a three-dimensional riverbed model is established based on the riverbed topographic data, and a core dredging area, a transition maintenance area and an ecological reserve area are divided in the three-dimensional riverbed model according to the sediment thickness; the core dredging area is divided into a surface layer, a middle layer and a bottom layer in the vertical direction, and a differentiated dredging process is executed; carrying out mud-water separation treatment on the dredged material, purifying the separated water, and reinjecting the purified water into the river channel; prefabricated ecological concrete modules are laid on the surface of a dredged riverbed, diversion trenches and biological nests are formed, and the biological nests are filled with polylactic acid / straw composite fiber felts containing local submerged plant seeds. Through spiral scanning, three-dimensional modeling and intelligent partitioning, integration of monitoring, planning, construction and repairing is achieved, accurate dredging is implemented, and the dredging efficiency is improved.

The present invention relates to the field of waterway monitoring technology, and specifically, to a real-time monitoring method and system for water depth of a port waterway. It includes: S1, selecting a monitoring point in the waterway, installing an intelligent buoy for monitoring waterway data at the monitoring point, the intelligent buoy is used to monitor waterway data, and deploying an acoustic Doppler current profiler to monitor the bottom flow velocity; S2, collecting waterway data collected by a sonar system and an acoustic Doppler current profiler; S3, constructing a waterway sedimentation model, and combining the real-time waterway data after preprocessing, introducing a time-dependent function, and correcting the measurement error of the real-time water depth data caused by silt silting; S4, based on the above steps S1-S3, constructing a network including multiple monitoring points to form a three-dimensional monitoring system for the waterway. By establishing a preliminary waterway sedimentation model of sedimentation rate and average bottom flow velocity, and introducing a time-dependent function and terrain factors, the prediction accuracy of future water depth changes in the waterway is improved.

The invention relates to a quick mountain torrent disaster risk assessment method and system based on multi-source data fusion. The method comprises the following steps: performing space-time registration on multi-source data, constructing a dynamic factor matrix and a static geological parameter matrix, and calculating soil saturation; on the basis of the dynamic factor matrix, removing redundant factors, analyzing and generating a weight vector through an entropy method, on the basis of the effective factor set, the static geological parameter matrix and the soil saturation, correcting the rock-soil shear strength by quantifying the sediment deposition effect, obtaining the corrected rock-soil shear strength, and calculating the slope safety coefficient; and according to the coefficient, the effective factor set and the weight vector, generating a risk membership degree vector through fuzzy evaluation, calculating a risk feature value, identifying a disaster dominant type, and constructing a risk map. According to the method, through multi-source data space-time registration, redundant factor elimination, sediment deposition effect quantitative correction and the like, the efficiency and precision of mountain torrent disaster risk assessment are improved, and the support of an assessment result on disaster prevention and reduction decisions is enhanced.

The invention relates to the technical field of coastal zone renovation and repair, in particular to a siltation promotion device for coastal zone renovation and repair, which comprises a siltation promotion assembly and a caisson which are sequentially arranged from top to bottom, the siltation promotion assembly comprises a plurality of siltation promotion modules which are connected through side edges, and the top side of the siltation promotion assembly is used for being fixedly connected with a coast; each siltation promotion module comprises a frame and a plurality of anti-flow plates, the multiple anti-flow plates are sequentially arranged in the frame from top to bottom, the two ends of each anti-flow plate are rotationally connected with the two opposite sides of the frame correspondingly, and every two adjacent siltation promotion modules are rotationally connected through one side edge of the frame; a sedimentation cavity is formed in the top of the caisson, a permeable material is arranged in the sedimentation cavity, flow guide holes penetrating through the two sides are formed in the upstream face and the downstream face of the caisson correspondingly, and the bottom side of the siltation promotion module is connected with the caisson and located above the sedimentation cavity; the siltation promotion device is formed in a splicing mode, the siltation promotion device can be well suitable for complex terrains, and the anti-flow plate is arranged to effectively resist water flow impact.

The invention discloses a Yellow River water conservancy project real-time monitoring system based on edge computing, and particularly relates to the technical field of cloud computing. The system constructs a flow state characteristic interval by collecting water and sediment data; loading an algorithm component based on flow state characteristics, and changing a master control pointer by using atomization operation to realize calculation power logic hot switching; analyzing a difference value between the instantaneous torque of the motor and the no-load reference to obtain a sediment deposition resistance torque; mapping the resistance moment to a digital shadow table to extract a gain compensation parameter; and resetting controller parameters and modulating the pulse width signal according to the compensation coefficient, and outputting a driving voltage to control the gate. Through the edge end algorithm hot switching technology, the problems that a traditional system is difficult to adapt to the variable water and sediment working conditions of the Yellow River and logic updating shutdown are solved, and monitoring continuity is guaranteed. The defect of power mismatching of a single driving mode is overcome, motor overload and mechanical jamming are prevented, gate control accuracy and operation stability are greatly improved, and the service life of equipment is greatly prolonged.

The utility model discloses a water conservancy desilting and dredging device, and belongs to the field of water conservancy projects. The water conservancy desilting and dredging device comprises a box body, and further comprises a sludge pump fixed in the box body, the first sludge pipe is fixed on the lower side of the box body, and the first sludge pipe is communicated with the input end of a sludge pump; the two second sludge pipes are symmetrically arranged on the first sludge pipe; the first electromagnetic valve is arranged in the second sludge pipe; the controller is fixed in the box body; the first discharge pipe is arranged at the output end of the sludge pump; the second discharge pipe is fixed on the upper side of the box body, and the second discharge pipe is communicated with the first discharge pipe; according to the utility model, the desilting operation is effectively prevented from being influenced after a single pipeline is blocked after silt pumping, and the blocked second silt pipe is subjected to back washing and the silt with poor flowability is supplemented with water through water flow, so that the desilting efficiency and the desilting effect are effectively improved.

The invention provides a river sediment physical habitat evolution identification method, device and system and a medium. The method comprises the following steps: acquiring a multi-temporal remote sensing image and hydrological data (flow Q, water level Zw and slope S), screening and other hydrological condition image pairs; extracting a water surface range, and calculating the average width B of the main groove; deducing the average water depth h by using a Manning formula, and calculating the riverbed elevation zbed by combining the Zw; the difference value delta zbed of zbed in different periods is calculated, and the substrate state is judged according to the difference value delta zbed and a threshold value epsilon; and performing segment processing along the center line to output a spatial distribution result. On-site measurement is not needed by relying on conventional data, and consumption is reduced; water level interference is eliminated through equal hydrological condition matching, and comparability is ensured; water depth inversion and differential analysis directly reflect scour deposition and quantitatively reveal rules; long-distance automatic processing improves space-time coverage capability and precision, and provides a basis for river regulation, ecological restoration and drainage basin management.

The invention provides a reservoir area sluice gate silt disturbance ecological device, which relates to the technical field of water conservancy projects, and comprises a guide mechanism, an ecological mechanism and a silt disturbance mechanism, the ecological mechanism is mounted on the front side of the guide mechanism; a control box is mounted on the left side of the ecological mechanism; three rows of silt disturbance mechanisms are arranged, and the three rows of silt disturbance mechanisms are installed at the bottom of the ecological mechanism. The mounting sliding block is mounted in the linear sliding rail in a sliding manner; the circular driving block is rotationally mounted in the mounting sliding block, and two storage grooves are formed in the outer wall of the circular driving block; microbial agents in the rectangular shell intermittently drip through the five rows of adding micropores, the water quality of the reservoir can be effectively improved, it is guaranteed that the water quality of the reservoir reaches the standard, and therefore the ecological environment of the reservoir is protected and improved; the problems that when silt is disturbed, microbial agents cannot be automatically put, and the ecological environment of a reservoir cannot be improved in an auxiliary mode are solved.

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

The utility model provides a river channel desilting device, and mainly relates to the field of water area desilting equipment. A river channel desilting device comprises a ship body. The dredging device has the advantages that the movable supporting plate driven by rotation of the threads is arranged in the ship body to move so as to drive the dredging pipe barrel to move, and the hydraulic cylinder capable of driving the dredging pipe barrel to ascend and descend is further arranged between the movable supporting plate and the dredging pipe barrel; different stretching depths of the desilting pipe barrel can be adjusted by adjusting the lifting height of the movable supporting plate and the lifting height of the hydraulic cylinder, and a spiral conveying twisting blade driven by a motor to rotate is further arranged in the desilting pipe barrel. Sludge, impurities and the like deposited at the bottom of the river channel are conveyed into the upper ship body through the spiral conveying twisted blade to be collected and treated through the dredging pipe barrel, and when the interior of the dredging pipe barrel needs to be cleaned, the dredging pipe barrel can be placed on the ship body and opened to clean the interior of the dredging pipe barrel.