114 results about "Tailings dam" patented technology

The invention discloses a tailing dam dynamic stability monitoring and early warning method and system, and belongs to the technical field of geotechnical engineering safety and structural health monitoring, and the method specifically comprises the steps: obtaining tailing dam monitoring data in real time, building and updating a numerical model of a tailing dam based on the tailing dam monitoring data, and calculating the dynamic stability of the tailing dam according to the numerical model. And calculating a current infiltration line in the tailing dam, analyzing the updated numerical model by adopting a self-adaptive crack surface optimization method without presetting a slip crack surface shape to obtain a current tailing dam safety coefficient and a critical slip crack surface, and predicting a future safety coefficient change trend by utilizing a machine learning model based on historical monitoring data and weather forecast data. If the current tailing dam safety coefficient and the future safety coefficient change trend meet predefined early warning conditions, an early warning signal is generated, otherwise, the early warning signal is not generated; according to the method, dynamic, real-time and accurate evaluation and predictive early warning of the stability of the tailing dam are realized, and the safety management level of the tailing pond is remarkably improved.

The invention discloses a GCN-LSTM-based tailing dam multi-point settlement deformation prediction method. The method comprises the steps of collecting and preprocessing original settlement monitoring data of monitoring points in a research area; constructing a graph structure for settlement data between all monitoring point pairs, setting a threshold value, connecting node pairs with significant correlation coefficient relationships by using edges, constructing a weighted undirected graph, and converting the weighted undirected graph into a normalized adjacent matrix as the input of a graph convolutional network GCN; extracting the spatial topology of each monitoring point by using a GCN; capturing long-term time dependence in the settlement process by using a gating mechanism of the LSTM network; and fusing the GCN and the LSTM network, and finally outputting a predicted value through a full connection layer. According to the method, the spatial topological graph among the monitoring points of the tailing dam is constructed, and the GCN and LSTM networks are fused, so that the spatial correlation among the monitoring points and the time dynamic characteristics of the settlement data are effectively captured, and high-precision tailing dam multipoint settlement prediction is realized.

The invention provides an intelligent tailing dam displacement prediction and early warning method, and belongs to the technical field of safety prediction and early warning, and the method comprises the steps: obtaining online monitoring historical data of a tailing dam, and carrying out the preprocessing of the data; constructing a GRU main prediction model to predict main prediction displacement; obtaining an error sequence through the measured data and the main prediction displacement; decomposing the error sequence into a trend term error sequence and a noise term error sequence through PSO-VMD-TOPSIS, and respectively constructing a trend term error correction model and a noise term error correction model based on GRU; an error correction value and a standard deviation of a trend item and a noise item are obtained through an MC-dropout technology; a dynamic weight calculation mechanism is constructed, a final displacement prediction value and a confidence interval are obtained in combination with the main prediction displacement, and whether an alarm is given or not is judged; according to the invention, high-precision real-time prediction, uncertainty quantification and real-time early warning of the displacement of the tailing dam are realized, and intelligent decision support is provided for safety state evaluation and disaster early warning of the tailing dam.

The invention discloses a tailing pond water level intelligent early warning system based on multi-modal data sensing, and the system comprises a data acquisition module which collects multi-dimensional data, and obtains water level seepage fusion features through principal component analysis; the behavior acquisition module is used for acquiring external rainfall characteristics and acquiring water level conduction behavior data by excavating a space-time nonlinear correlation mode between the water level seepage fusion characteristics and the external rainfall characteristics; the spatial topology module is used for acquiring a safety threshold through historical risk data and constructing an improved tailing pond spatial topology network in combination with a graph convolutional network; according to the improved tailing pond spatial topology network, on the basis of a graph convolution network infrastructure, the construction of the improved spatial topology network is completed by designing a topology perception attention mechanism and stacking multiple layers of graph convolution; and water level early warning data: inputting the water level conduction behavior data and the water level seepage fusion features obtained in real time into the improved tailing pond spatial topology network to obtain an early warning result.

The utility model provides a tailing slurry discharge device which comprises a fixing part, a buffer plate and a connecting part, the fixing part is used for being fixedly connected with an ore drawing pipe, one end of the connecting part is connected with the fixing part, and the other end of the connecting part is connected with the buffer plate; the buffering plate is arranged between the ore drawing pipe and the beach face of the tailing dam in a suspended mode and arranged below an opening of the ore drawing pipe, the horizontal highest point of the buffering plate is arranged on the orthographic projection extension line of the axis of the ore drawing pipe on the buffering plate, a plurality of through holes are formed in the buffering plate, and when tailing slurry is discharged through the ore drawing pipe, under the action of gravity, the tailing slurry impacts the buffering plate and is borne by the buffering plate. The buffering plate is arranged, so that tailing slurry can be dispersed by the buffering plate and discharged downwards along the through hole and the slope of the buffering plate, the potential energy of tailing discharging is dispersed, a beach face scouring pit cannot be formed, and the good scattering and scattering effect and the uniform deposition effect are achieved.

The invention provides a hyperspectral tailing pond dry beach line intelligent analysis method, and belongs to the technical field of image processing. Through multiband characteristics of a hyperspectral remote sensing image, principal component clustering analysis and characteristic wavelength selection are combined, so that the problems of insufficient spectral information of the image after dimension reduction and serious data redundancy caused by use of a full-band image are solved; single-band images corresponding to different characteristic bands emphasize different target information in the original image, and different combinations are beneficial to fully exerting the advantages of different target information of each band, so that a water area and a dry beach are distinguished more accurately; a double-branch network model is adopted, the difference between spectral dimensions and spatial dimensions is synchronously analyzed, spectral features and spatial information are fused, and the two branches have certain complementarity, so that rich spatial spectrum information of an input hyperspectral remote sensing image can be fully excavated, a dry beach line can be identified more accurately and effectively, the length of the dry beach is calculated, manual intervention is reduced, and the working efficiency is improved. The treatment efficiency is improved.

The invention discloses an intelligent identification method and platform for tailings pond disaster hidden dangers, and relates to the technical field of intelligent monitoring, and the method comprises the steps: carrying out the automatic partitioning based on the global monitoring data of a tailings pond, and constructing a layered data collection system; establishing a physical and mechanical database, and combining consolidation and mechanical data to construct a mechanical parameter inversion model; identifying physical and mechanical characteristics of the dam body through the model, determining disaster types and performing grading; deducing a disaster evolution process, analyzing a disaster chain and constructing a structure tree; and judging a disaster occurrence rate according to the disaster chain, and if the disaster occurrence rate exceeds an early warning threshold, generating a risk early warning report. The technical problem that in the prior art, a tailing pond disaster hidden danger recognition system is insufficient in accuracy is solved, and the technical effect of improving the accuracy of tailing pond disaster hidden danger recognition is achieved through accurate recognition of tailing pond disaster types, dynamic adjustment of disaster grades and real-time deduction of the disaster evolution process.

The invention relates to the field of mine geologic modeling, in particular to a dynamic geologic modeling method and system based on self-adaptive updating of multi-source heterogeneous data. The method comprises the steps that a tailings pond state feature data set is acquired, and a time-space lag prediction model is constructed through a machine learning method according to the tailings pond state feature data set; a tailing pond operation plan information set is obtained, and based on the tailing pond operation plan information set and the current ore pulp liquid level state, a time-space lag prediction model is utilized to predict a pore water pressure change information set in the tailing dam in the future period; and dynamically evaluating the stability of the tailing dam according to the pore water pressure change information set, and outputting stability early warning information. In the mine geologic modeling process, timely configuration of emergency resources and accurate control of prevention and control opportunities are achieved, and linkage dam body instability and disastrous dam break accidents are further reduced.

The application relates to the field of mine geological modeling, in particular to a dynamic geological modeling method and system based on adaptive updating of multi-source heterogeneous data. The method comprises the following steps: acquiring tailing pond state feature data set, constructing a time-space lag prediction model through a machine learning method according to the tailing pond state feature data set; acquiring a tailing pond operation plan information set, predicting a pore water pressure change information set inside a tailing dam in a future period of time by using the time-space lag prediction model based on the tailing pond operation plan information set and a current ore pulp liquid level state; and performing dynamic evaluation of tailing dam stability according to the pore water pressure change information set and outputting stability early warning information. In the mine geological modeling process, timely allocation of emergency resources and accurate grasp of prevention and control time are realized, and chain instability of dam body and disastrous dam break accidents are reduced.

The invention provides an anti-seepage slope protection material as well as a preparation method and application thereof. The anti-seepage slope protection material comprises a cementing material, an alkali activator and waste rock aggregate, wherein in terms of the total weight of the cementing material being 100%, the cementing material comprises 20%-80% of mudstone powder and 20%-80% of slag powder; the material simultaneously realizes resource utilization of three solid wastes, namely mudstone, slag powder and mining area barren rock, has excellent anti-seepage performance, compressive strength, anti-disturbance capability and durability, and is suitable for anti-seepage water-resisting layers of open pit coal mine dumping sites, tailing dams or industrial solid waste storage yards.

The embodiment of the invention provides a tailing dam rainfall infiltration model test system and method under the freezing and thawing cycle effect, and relates to the technical field of tailing dam stability detection. The system comprises a pressure bearing box, an environment control device, a rainfall infiltration device and an intelligent monitoring device. Wherein a tailing dam model is arranged in the pressure-bearing box, the environment control device is communicated with the internal space of the pressure-bearing box, and environment parameters such as the test temperature, the test air pressure and the test oxygen concentration of the internal space of the pressure-bearing box can be adjusted. The rainfall infiltration device can simulate different rainfall phenomena according to meteorological data. The intelligent monitoring device can collect monitoring data through the sensor group and generate a test result for evaluating the stability of the tailing dam through the data processing unit. The system can simulate a low-pressure and low-oxygen environment and a freeze-thaw cycle phenomenon in a high-cold and high-altitude area, can realize dynamic process simulation of a tailing dam model under freeze-thaw cycle and rainfall conditions, and improves the accuracy of a test result.

This application provides a method, system, equipment, and storage medium for dynamically fitting and generating phreatic lines in tailings dams, relating to the field of tailings dam monitoring technology. The method includes: acquiring phreatic line monitoring data of a target tailings dam; preprocessing the phreatic line monitoring data to obtain target monitoring data; constructing a dynamic fitting function library based on the dam body parameters and foundation parameters of the target tailings dam; performing parameter fitting based on the target monitoring data and the dynamic fitting function library, calculating the goodness of fit, and selecting a target fitting function based on the goodness of fit; and drawing the phreatic line of the target tailings dam based on the target fitting function and the target monitoring location information. This application achieves fully automated and intelligent generation from raw monitoring data to high-precision phreatic lines, effectively ensuring the authenticity and stability of the phreatic line representation.

This application relates to the technical field of dam protection, and in particular to a construction process for tailings dam protection, comprising the following steps: S1, prefabricating burlap sacks, filling the sacks with rock, soil, and grass seeds, and bundling multiple sacks into groups; S2, cleaning and leveling the dam surface; S3, setting up anti-slip units on the dam surface, and placing the bundled burlap sacks onto the anti-slip units; S4, sprinkling water on the sacks and waiting for the plants to sprout. This application can improve the construction efficiency of dam protection and reduce construction costs.

The tailing pond system in the cold region comprises a tailing dam, a dry beach area, a clarification area, a first ore drawing pipeline and a heat dissipation pipeline, and valves are arranged at the inlet ends of the first ore drawing pipeline and the heat dissipation pipeline; the heat dissipation pipeline comprises a second ore drawing pipeline, a connecting pipeline, a pre-buried pipeline, a first anti-blocking pipeline and a second anti-blocking pipeline which are communicated in sequence; a first ore drawing pipeline and a second ore drawing pipeline are alternately arranged on the tailing dam, and a pre-buried pipeline is laid in the dry beach area; and an outlet of the second anti-blocking pipeline is higher than the level of tailing slurry discharged in the dry beach area. The invention further discloses an ore drawing method of the tailing pond system. The heat generated when the tailing slurry is discharged is used for eliminating a tailing pond freezing layer lenticular body in a cold region, it is guaranteed that the dam body infiltration line is not lifted, and the dam body safety is guaranteed.

The invention relates to the field of tailing pond supervision, and discloses a tailing pond water level dynamic early warning system, method and equipment and a storage medium. The system comprises a water level monitoring module used for continuously collecting real-time water level data of discrete point locations of a tailing pond area; the edge calculation module is used for preprocessing the real-time water level data and generating a corresponding trigger type inspection instruction; the trigger routing inspection module is used for responding to the trigger routing inspection instruction, executing a routing inspection task on a region corresponding to the trigger routing inspection instruction, and collecting spatial domain water level data of a tailing pond region; and the data processing module is used for fusing the water level field data and the water level prediction data according to the real-time water level data to generate multi-level safety early warning information. According to the application, through cooperative operation of all the modules, a set of three-dimensional monitoring and early warning system is constructed, evolution from traditional single passive monitoring to global active early warning is realized, and the accuracy and reliability of tailing pond safety monitoring are improved.

The application provides a tailing dam instability trend multi-source information fusion early warning method. The method comprises the following steps: collecting tailing dam parameters of a tailing dam, and determining first multi-source early warning parameters from the tailing dam parameters; obtaining a topographic and geomorphic model of the tailing dam, and establishing a multi-scale multi-factor coupled mechanical model of the tailing dam based on the topographic and geomorphic model and the first multi-source early warning parameters; inputting the tailing dam parameters into the multi-scale multi-factor coupled mechanical model to predict and simulate the dam-bursting process of the tailing dam, and obtaining a prediction simulation result; and early warning the instability of the tailing dam based on the prediction simulation result. Thus, the present scheme uses the multi-scale multi-factor coupled mechanical model for early warning, considers the physical mechanism and interaction of the tailing dam at different scales, and can more accurately predict the instability trend of the tailing dam by coupling analysis of multiple factors, thereby improving the early warning precision.

The invention relates to the technical field of tailing pond infiltration line detection, and particularly discloses a direct-reading visual artificial intelligence detection device for a tailing pond infiltration line, two sides of a top plate are rotatably connected with supporting parts, the side surface of the top plate is fixedly connected with a gradienter, and the bottom of the top plate is fixedly connected with a blocking part. According to the direct-reading visual artificial intelligence detection device for the tailing pond infiltration line, the detection mechanism is arranged, the detection piece is lowered through the infiltration line detection pipe and can buzz after making contact with the water surface, and after receiving an alarm, detection personnel detect the situation through the video detection piece and directly read infiltration line burial depth data according to a scale cable; the accuracy of manual detection data of the tailing dam infiltration line is ensured, accurate comparison and analysis of online monitoring data of the infiltration line are facilitated, effective and accurate operation of an online monitoring device of the infiltration line is ensured, the stability of a dam body is kept, and dam break accidents are completely eradicated.

The application provides a tailing pond dam-break whole process simulation method and system, including constructing a three-dimensional geological grid model according to ground point cloud data of a target area, cooperating with drilling data, solving an initial ground stress field through a virtual mass method and setting a stress imbalance rate condition; a landslide simulation stage is based on the initial ground stress field and a landslide impact force to simulate a mountain rupture process, obtaining a damage area boundary and a pore water pressure distribution; when a dam body displacement mutation or a stress threshold value is exceeded in a disaster response, a dam-break simulation stage of a deformation damage area is started; in the dam-break simulation stage, a mud and sand flow movement path is simulated based on the damage area boundary and topographic data; finally, a disaster path graph, an accumulation thickness cloud graph and an influence range thermal cloud graph are generated based on the mud and sand flow movement path; the application breaks through the limitations of traditional methods, first realizes high-precision and efficient simulation of the whole process of "deformation, damage, dam-break and disaster" of a tailing pond dam-break, and provides a quantitative prevention and control basis for high-risk scenarios.

The application provides a tailing pond seepage sensitivity analysis and dam break early warning method based on fissure characteristics, acquires collection images of a tailing pond dam body based on a computer vision technology, analyzes and processes the collection images, determines joint fissure regions and joint fissure characteristics, realizes accurate acquisition of tailing pond joint fissure characteristics, provides accurate data basis for tailing pond seepage sensitivity, determines the saturation surface distribution and the hydraulic gradient distribution of the tailing pond dam body based on the joint fissure regions and the joint fissure characteristics, performs seepage sensitivity analysis and calculation on the tailing pond dam body, obtains seepage calculation results, performs dam break judgment on each type of result based on standard results, performs early warning and reminding according to the dam break judgment, realizes accurate analysis and early warning of the stability of the tailing pond, and ensures the safety of the tailing pond.

The invention discloses a cloud model-based tailing dam rainfall stability risk assessment method. The method comprises the following steps of S1, establishing a complete index system; s2, carrying out denoising preprocessing on the monitoring data by adopting a variational mode decomposition (VMD) algorithm; s3, carrying out weight analysis, and determining a combined weight; and S4, constructing a cloud model, determining a standard cloud of the cloud model, and judging a risk level. According to the method, the VMD algorithm is innovatively introduced to carry out denoising reconstruction on the monitoring data, original noisy data does not need to be stored, only effective signal components are reserved, risk level distribution characteristics can be described only through expected value-entropy-hyper-entropy parameterized representation of the cloud model and by using three groups of core parameters, dependence of a traditional method on full-amount historical data is replaced, and the method is high in reliability and high in reliability. The problem that the size of the buffer area is difficult to match the data size is thoroughly solved; under the mechanism, the risk evolution key information can be completely reserved with lower storage cost, and risk misjudgment caused by data loss can be avoided.

The present application relates to a kind of tailings vegetation substrate laying device and laying method, it is related to mine ecological restoration management technical field, for solving the ecological restoration of tailings dam in prior art, lack of vegetation substrate laying device while digging, and tailings cannot be well utilized, and the problem of waste soil;Including: excavation system, mobile base, impurity removal system, screening system, mixing system, spreading mechanism and control system, the mobile base is movably connected at one end of the excavation system;The impurity removal system includes first mixing mechanism and filtering mechanism;The screening system includes screening mechanism and first laying mechanism;The mixing system includes second mixing mechanism and second laying mechanism;Control system is electrically connected with excavation system, impurity removal system, screening system, mixing system and spreading mechanism.

A working platform that may be used at a site of a functional hydro structure, such as a dam, powerhouse, impoundment structure, sea wall, levee, tailings dam, or the like, constructed at least in part of precast segments is described herein. The working platform supports the functional hydro structure assembled thereon, which includes, at least in part, precast segments. Related methods for constructing a functional hydro structure are provided.

The utility model discloses an anchor body for damming a tailing pond. The anchor body comprises a push strip and a gasket. According to the anchor body for damming of the tailing pond, guide grooves are formed in the peripheries of the four sides of the anchor body, push strips matched with the guide grooves are slidably connected into the guide grooves, first folding strips are hinged to the front ends of the push strips, second folding strips are hinged to the ends of the first folding strips, the ends of the second folding strips are hinged to the inner sides of the front ends of the guide grooves, and the tail end of the anchor body is movably sleeved with gaskets matched with the anchor body. A fixing nut is arranged on the outer side of the gasket, the anchor body penetrates through the tailing dam body to be inserted into a foundation, the gasket is extruded by matching with the fixing nut so as to anchor and tension the tailing dam body, and meanwhile when the gasket is extruded by the fixing nut, the gasket can push the push strip to slide in the guide groove through the push block, so that the first folding strip and the second folding strip are extruded and deflected; therefore, the first folding strip and the second folding strip are embedded into the foundation, the reinforced connection effect is achieved, the anti-pulling effect is achieved, and the situation that the anchor body loosens and falls off is effectively avoided.

The invention relates to the technical field of iron-containing mineral treatment, in particular to a method for comprehensively utilizing iron-containing minerals, which comprises the following steps: through the whole-process cooperative treatment of low-temperature weak reduction magnetization, magnetic separation, associated element gradient extraction and tailing gelatinization, iron, titanium and rare earth are respectively collected, and iron can be efficiently and magnetically separated and recycled under the mild condition of lower than 750 DEG C; the energy consumption and the carbon emission are greatly reduced; titanium, manganese and rare earth are clearly separated due to the fact that oxide forms are kept, the rare earth is subjected to normal-temperature leaching and environment-friendly extraction, oxalic acid precipitation closed-loop recovery, and waste liquid is recycled; the magnetic separation tailings and the titanium slag are directly prepared into a high-strength geopolymer gelling material according to the proportion of 7: 3, the tailings are completely converted into building materials or heavy metal contaminated soil remediation filler, a tailing dam is thoroughly omitted, and the risks of dam break and percolation are eradicated; and finally, the high-iron concentrate, the mixed rare earth oxide and the high-added-value gelling material are output, and a virtuous cycle with full utilization of resources, zero emission of waste and win-win economy and environment is formed.

The present invention proposes a multimodal tailings dam break digital twin emergency simulation and decision optimization method. First, a high-precision three-dimensional scenario model is constructed. Based on the finite element model, the high-precision three-dimensional tailings dam model is simulated and calculated to obtain the dam body stress-strain field. Based on ANSYS+reinforcement learning, the dam body stress-strain field and the current environmental status are used to predict the dam break probability distribution map. Based on the dam break probability distribution map and resource distribution data, a rescue scheduling plan is generated. Then, a dynamic virtual simulation scene is built for exercises, and the rescue scheduling plan is verified and optimized based on the exercise record data to obtain the final rescue scheduling plan. The present invention uses the ANSYS+reinforcement learning hybrid engine to enhance the simulation accuracy, realize dam break path prediction, optimal resource scheduling and plan self-optimization closed loop, and solves the problems of traditional technology data fusion distortion, simulation rigidity, decision lag and other problems. It is particularly suitable for variable working conditions such as sudden changes in the tailings dam seepage field and extreme weather.

The invention relates to the technical field of dressing plant tailing operation training equipment, in particular to a tailing dam practical training model which comprises a dam body frame, an initial dam and sub-dams are arranged on the dam body frame, a drainage culvert pipe is arranged in the initial dam, a dam face drainage ditch and a waistcoat drainage ditch are arranged on the initial dam, and the sub-dams are arranged on the dam face drainage ditch. A dam body seepage water pipe, a dam body seepage line observation pipe and an overflow tower drainage pipe are arranged in the dam body frame, an overflow tower is installed at the water inlet end of the overflow tower drainage pipe, and an ore drawing pipe is arranged on the dam body frame. Practical operation training such as tailing pond operation observation, ore drawing operation, hidden danger checking and emergency disposal can be safely and efficiently carried out, the skill mastering efficiency and the hidden danger recognition accuracy of trainees are remarkably improved, and various training examination requirements of tailings pond workers of dressing plants are met.

This invention discloses a method for the flotation recovery of fine-grained cassiterite embedded in coarse sand of tin-containing polymetallic tailings, relating to the field of mineral processing technology. It introduces microwave pretreatment technology into the recovery of fine-grained cassiterite embedded in coarse sand at the tailings dam head, employing a combined process of "microwave pretreatment-grinding-intense magnetic separation for iron removal-fine-grained cassiterite flotation" to improve cassiterite recovery efficiency. This method utilizes the differences in microwave absorption capacity between cassiterite, iron-bearing minerals, and gangue to generate selective thermal stress and microcracks at the mineral interface, achieving efficient and selective dissociation of cassiterite from the intergrowth of iron-bearing minerals and gangue. Intensive magnetic separation then removes iron-bearing minerals, eliminating their interference with flotation. Finally, a ternary combined collector composed of SN01-1-hydroxyoxime acid, SN02-1-hydroxyoxime acid, and a flotation defoaming agent is used for cassiterite flotation. This method achieves efficient recovery of difficult-to-process cassiterite resources from coarse sand in tailings dams, providing an effective technical path for the resource utilization of historically inherited tailings.

The application provides a built-in drainage combined header dam building method and relates to the technical field of mine tailing pond dam building methods. The built-in drainage combined header dam building method comprises the following steps: laying drainage headers side by side according to the dam body direction, arranging a plurality of drainage headers in a ring shape to form a meandering frame, filling the inside of the drainage headers with cyclone tailings, filling the inside of the meandering frame with the tailings after the inside of the drainage headers is filled, arranging and laying new drainage headers above the laid drainage headers after the tailings in the meandering frame are completely consolidated, and repeating the above steps to finally form a sub-dam. The built-in drainage combined header dam building method has the advantages that the construction operation is simple, the tailings are used to build the dam, the dam body strength is guaranteed, the space is used to the maximum extent, the capacity of the tailings dam is improved, and the problems of difficult tailings dam building and high cost are solved.

This invention discloses a method for monitoring the safety of tailings dam waterlogged areas based on deep learning, comprising: Step 1, acquiring panoramic images of the waterlogged area and close-up images of the drainage outlet, preprocessing the images, and extracting basic features; Step 2, calculating the initial image texture entropy, and calculating the actual water level change based on the basic features; Step 3, calculating the real-time turbidity based on the basic features and the initial image texture entropy; Step 4, calculating the water flow state quantification value, and calculating the siltation coefficient based on the water flow state quantification value to determine the degree of siltation; Step 5, calculating the comprehensive hazard index based on the basic features, the actual water level change, the real-time turbidity, and the siltation coefficient, determining the risk level, and identifying the hazard type. This invention solves the problems of traditional machine vision monitoring algorithms having poor adaptability to dynamic interference in waterlogged areas, water quality assessment not being correlated with particle settling characteristics, water flow analysis not being coupled with hydrostatic resistance, and hazard judgment relying on a single indicator, which is prone to misjudgment.

This invention relates to the field of tailings dry beach detection technology, specifically to a tailings dry beach length measuring device and its construction method. It includes columns installed on both banks of a tailings dam, a truss installed at the top between the two columns, and a detection mechanism including two slide rails installed on opposite sides of the truss's bottom surface. Sliding blocks are slidably connected to the slide rails. A sleeve is installed at the top of the inner cavity of a protective cover, with limiting holes through the opposite side walls of the sleeve. A fixed column is movably inserted into the inner cavity of the sleeve, and an ultrasonic level gauge is fixedly connected to the end of the fixed column away from the sleeve. In this invention, the ultrasonic level gauge and the sleeve are installed by interlocking the elastic limiting column and the limiting hole. This allows for easy disassembly by using external tools to separate the elastic limiting column from the limiting hole to remove the ultrasonic level gauge, and for installation, simply inserting the fixed column into the sleeve and the elastic limiting column into the limiting hole. The entire disassembly and assembly process is simple and quick.