152 results about "Hydraulic structure" patented technology

The invention provides an arch dam shape efficient intelligent optimization method and system based on an agent model. The method comprises the steps that an arch dam physical-numerical model is constructed, a double optimization target with structural safety and economical efficiency as the core is determined, design parameters are selected, a constraint function is set, and an evaluation index system is established; samples are generated through Latin hypercube sampling, a data set is constructed in combination with finite element calculation, and a multi-task learning architecture is adopted to train a high-precision agent model. And then, coupling the proxy model with a multi-objective optimization algorithm, quickly searching a Pareto optimal solution set, and screening out a comprehensive optimal figure by using a multi-attribute decision-making method. And finally, through a finite element simulation verification result, prediction precision and performance improvement are ensured. The method has the advantages of lightweight modeling, efficient prediction and accurate search, and provides an effective tool for intelligent optimization and rapid decision making of hydraulic structures such as arch dams and the like.

The invention discloses an underwater target volume measurement method, device and equipment based on three-dimensional reconstruction and a medium, and belongs to the technical field of photogrammetry, underwater image processing and point cloud volume calculation cross, and the method comprises the steps: carrying out the video data collection of an underwater target through video collection equipment, and obtaining an original image with image format data; the underwater image enhancement method model based on depth estimation performs image enhancement on the original image to obtain an underwater enhanced image; reconstructing a real scene containing a target based on the underwater enhanced image; and based on the three-dimensional reconstruction point cloud, segmenting to obtain the to-be-measured target, and obtaining the volume parameter of the underwater target. According to the method, a three-dimensional reconstruction technology is utilized, a real target structure is restored, the measurement accuracy of the underwater target defect volume is improved, a reference standard is provided for later repair, the maintenance cost is reduced, and the operation safety of a hydraulic structure is guaranteed.

The invention discloses a hydropower station unit tail water gate groove water surface floating object salvaging device which comprises a rail fixed to a hydraulic structure, a remote control driving device capable of moving in the extending direction of the rail and a salvaging basket hung on a lifting appliance. The remote control driving device is connected with a lifting appliance and can drive the fishing basket to move in the up-down direction and the extending direction of the rail, so that water surface floating objects in the tail water gate groove are fished through the fishing basket. A remote control driving device and a movable fishing basket are adopted, so that the working efficiency of fishing the floating objects on the water surface is improved; and in addition, the fishing device efficiently and cleanly fires water surface floating objects in the tail water gate groove before the tail water gate is ready to fall during unit maintenance, it is guaranteed that the tail water gate of the unit falls in place at a time, the safety risk that personnel dive is avoided, and the maintenance work period is shortened.

The invention relates to the field of hydraulic structures, in particular to a three-dimensional damage rapid positioning method for a complex aqueduct structure. Acoustic emission or microseismic signals in the aqueduct structure are collected, and the first arrival time of the signals is picked up through an STA / LTA long and short time window energy ratio method; constructing a curved surface structure model composed of a groove surface and a side wall; parameterizing the cross section, and constructing a groove surface propagation path set according to the position relationship between the damage point and the sensor in a parameter space; for each pair of damage points and sensors, selecting a path with the minimum groove surface path length as a shortest propagation path, and calculating theoretical arrival time according to the shortest propagation path; establishing a residual function between the theoretical arrival time and the actually measured arrival time, and constructing a jacobian matrix of arrival time change; and solving the coordinates and occurrence time of the damage source. According to the method, the parameterized model of the aqueduct section is established, traditional ray tracing is replaced with the curved surface shortest path thought, and the numerical difference and rapid iteration methods are combined, so that efficient and robust damage source positioning is achieved.

The invention discloses an open-web gravity dam deformation prediction and mechanism interpretation method, system, equipment and medium, and belongs to the technical field of dam and hydraulic structure health monitoring and state evaluation. Constructing the preprocessed monitoring data into corresponding feature vectors, dividing a time sequence data set, and performing XGBoost model training and hyper-parameter optimization to obtain a prediction model; calculating a corresponding SHAP value, and screening a key factor as an independent variable for model analysis; and selecting a control index to evaluate the performance of the model, and deploying the model to a dam safety monitoring system after verification so as to carry out real-time prediction and early warning. According to the method, while high-precision deformation prediction of the open-web gravity dam is realized, quantifiable mechanism explanation of the prediction result is provided, so that transparent and reliable decision support is provided for safety monitoring and early warning of the dam.

The invention discloses a hydraulic structure risk assessment method based on a multilevel dynamic fuzzy Bayesian network, and relates to the technical field of hydraulic engineering safety monitoring, and the method comprises the following steps: recognizing risk factors of a hydraulic structure, and building a hierarchical hydraulic structure risk assessment system; a Bayesian network risk probability model is constructed based on a risk assessment system, nodes in the model correspond to indexes of each layer of the assessment system, and edges among the nodes are connected according to a causal relationship among the indexes. According to the invention, accurate and dynamic management and control of hydraulic structure risks are realized. In the aspects of data processing and risk judgment, multi-source monitoring data such as displacement, seepage and water level are classified and integrated according to an index layer, a criterion layer and a target layer through hierarchical evaluation system design, the isolation problem of traditional single data monitoring is avoided, the data collaboration value is fully mined through logic association among the layers, and the risk judgment accuracy is improved. And the risk assessment does not depend on one-sided information any more.

The invention discloses a multi-source time sequence decomposition and fusion hydraulic structure behavior prediction method, which comprises the steps of 1, acquiring historical time sequence monitoring data of a hydraulic structure, including behavior parameters and environmental quantity parameters, the behavior parameters including dam body settlement and seepage flow, and the environmental quantity parameters including dam body water level and rainfall; 2, preprocessing the acquired monitoring data, and constructing a hydraulic structure behavior model input data set; 3, determining an optimal decomposition period of an input data set of the hydraulic structure performance model; 4, according to the determined optimal decomposition period, decomposing the preprocessed hydraulic structure performance model input data set into three component parameters according to an original time sequence, wherein the three component parameters are respectively a trend component parameter, a periodic component parameter and a residual component parameter; and 5, superposing the predicted values of the three component parameters according to time points to obtain a final performance predicted value of the hydraulic structure. According to the method, the prediction precision is remarkably improved, and the stability and reliability of long-term prediction are remarkably improved.

The utility model discloses a structure for preventing internal leakage of horizontal single-stage centrifugal pump, related to centrifugal pump field, including pump body, guide vane, impeller and motor, be equipped with water inlet and water outlet on the pump body, and motor is connected through motor shaft and drives impeller, and guide vane cover is established in the impeller outside and is close to the water outlet place, and the impeller mouth part is close to the water inlet place and installs the mouth ring, and the mouth ring is supported on the guide vane, and forms the primary seal between the pump body and the guide vane, installs the sealing washer at the pump body and the guide vane sealing surface outside side stop mouth step, and the sealing washer is extruded by the pump body and the guide vane, forms the axial contact surface and radial contact surface, and the axial contact surface forms the axial seal with the guide vane, and the radial contact surface forms the radial seal with the pump body. The utility model effectively solved the problem of the low efficiency caused by the internal leakage of the water pump due to the poor flatness of the pump body and the guide vane cooperation sealing surface, and under the condition of not destroying the hydraulic structure, increases secondary seal, reduces the volume loss, thereby improves the water pump efficiency.

The invention provides a hydraulic structure health monitoring method fusing physical constraints and a time sequence large model, relates to the field of hydraulic structure monitoring, and solves the technical problems that an output result violates a physical law and a hydraulic monitoring result is inaccurate due to lack of physical consistency in the prior art. The method comprises the following steps: collecting various sensor monitoring data of the hydraulic structure; inputting the monitoring data into a pre-trained prediction model; through a physical constraint module of the prediction model, taking environmental load data, material parameter data and geometric boundary data of the hydraulic structure as input, embedding a mechanical equation describing behaviors of the hydraulic structure into a loss function of the prediction model, and outputting a structure response prediction value and a structure safety threshold value; through a time sequence prediction module of the prediction model, taking monitoring data as input, and outputting a structure state prediction value of a future time period and a confidence interval of the prediction value; and based on an output result of the prediction model, generating a hydraulic health state assessment result and early warning information.

The present application relates to the technical field of grouting construction, and particularly relates to a split grouting continuous construction method for a diaphragm wall of a deep foundation pit hydraulic structure, comprising: determining a continuous grouting unit and a wall forming target according to a design line of the diaphragm wall, wherein the continuous grouting unit comprises adjacent grouting hole groups and an inter-hole overlapping area; obtaining response data representing the expansion state of the inter-hole overlapping area during split grouting of the continuous grouting unit; determining discrimination information representing the expansion deviation of the grout vein and the inter-hole overlapping state based on the response data and the wall forming target; determining the wall forming continuous state of the continuous grouting unit according to the discrimination information; determining grouting control parameters when the preset continuous wall forming condition is not met, and performing linkage grouting on the adjacent grouting hole groups based on the grouting control parameters; and advancing to the next continuous grouting unit when the preset continuous wall forming condition is met. Through the present application, the inter-hole overlapping controllable discrimination and the section-by-section continuous wall forming of split grouting in a heterogeneous stratum are realized.

This invention discloses a mixing pile machine, belonging to the field of engineering machinery technology. The mixing pile machine uses a motor to drive a spherical shaft to rotate. The motor speed can be adjusted according to different actual conditions, thereby adjusting the speed of the mixing drill rod to adapt to mixing pile operations in rock caves with different geological conditions, improving the efficiency and quality of mixing pile construction. Compared to existing technologies that use a hydraulic structure to drive the mixing drill rod, this invention allows for adjustment of the mixing drill rod speed by adjusting the motor speed, avoiding the impact on construction efficiency or quality caused by the non-adjustable mixing drill rod speed. It can adapt to different geological conditions, improving the efficiency and quality of mixing pile construction.

This invention belongs to the field of hydraulic structure analysis technology, specifically disclosing a gravity dam coupling analysis method, system, electronic equipment, and storage medium, including: models describing water flow in concrete, the relationship between water pressure and stress, the dissolution reaction process, and the coupling of ion diffusion with water flow. By acquiring influencing variables, parameters of each model are correlated, and a solubility function considering performance parameters is established and dynamically updated. The solubility function is iteratively trained using experimental data to construct a finite element model, and simulations are performed based on the trained function. Early warnings are generated based on the simulation results to predict the concrete deterioration process and optimize maintenance decisions. It has the following advantages: by coupling multiple models such as water flow, chemical dissolution, and hydraulic fracturing, the long-term deterioration process of concrete under the action of water flow and dissolution is accurately simulated. The introduction of a solubility function and dynamic updating of material parameters, considering time-varying deterioration effects, comprehensively improves the accuracy of deterioration prediction and simulation results.

The invention discloses a cold region hydraulic structure freezing load identification system. The system comprises a sensor module, a data acquisition and transmission unit, a data processing center, a display and early warning module and a remote monitoring terminal. The sensor module comprises a temperature sensor, a strain sensor and a displacement sensor and can monitor the physical quantity of the hydraulic building in all directions; the data acquisition and transmission unit ensures efficient acquisition and stable transmission of data; the data processing center analyzes the data through preprocessing and a machine learning algorithm; the display and early warning module visually displays information and early warning; and the remote monitoring terminal supports remote monitoring. The system can accurately identify the freezing load of the hydraulic structure in the cold region, guarantees the safe and stable operation of the hydraulic structure in the cold region environment, overcomes the defects of a traditional monitoring means, and improves the safety management level of a water conservancy project.

The utility model relates to the technical field of piezometric tube cleaning, and discloses a piezometric tube cleaning device for engineering safety monitoring, which comprises a silt collector, a stable support fixedly mounted at the top of the silt collector, and a cleaning component arranged on the side of the silt collector, the cleaning assembly comprises a cleaning mechanism arranged at the side position of the silt collector, an auxiliary mechanism is arranged at the top position of the silt collector, the cleaning mechanism comprises a spray pipe and a side plate, the spray pipe is fixedly installed on the inner wall of the silt collector, and a nozzle is fixedly installed at the bottom of the spray pipe. According to the utility model, the problems of poor water permeability, long lag time and unqualified sensitivity experiment of the pressure measuring pipe caused by more and more sludge accumulated in the existing pipe and sand and stones falling from an orifice, and unnecessary troubles brought to construction and operation management units due to the fact that data cannot reflect the safety state of a hydraulic structure are solved.

The invention provides a hydroelectric equipment knowledge graph retrieval enhancement method and device based on multi-modal embedding, and belongs to the technical field of intelligent perception and multi-modal semantic understanding of water conservancy and hydropower engineering. The method comprises the following steps: on the basis of related documents and pictures of hydroelectric equipment, constructing a multi-modal knowledge graph by utilizing a large language model; performing vectorization representation on pictures and text information in the multi-modal knowledge graph, and mapping the pictures and the text information to a unified semantic space to generate a vector database used for retrieving the multi-modal knowledge graph; and the vector database is utilized to retrieve the multi-modal knowledge graph. According to the method, deep fusion and semantic alignment of multi-source heterogeneous data such as images and texts can be realized, the method can be widely applied to fields such as hydropower station electromechanical equipment maintenance, hydraulic structure safety inspection and scheduling operation and maintenance knowledge management, and the equipment identification precision, the retrieval response speed and the knowledge service intelligence level can be remarkably improved.

The invention belongs to the field of anti-explosion safety of hydraulic structures, and provides a method for evaluating the overall stability of an aqueduct structure under the action of an internal underwater contact explosion load, and the method comprises the steps: building a fine full-coupling analysis model of a large aqueduct under the internal underwater contact explosion; an initial load is applied, the aqueduct structure generates an initial response, and after the structural response is stable, the explosive is ignited; initial damage of the aqueduct structure under the action of the explosive shock waves is calculated, and a failure unit is deleted through a failure unit erosion technology; reconstructing a post-explosion residual structure model of the aqueduct; carrying out nonlinear static analysis on the overall stability of the aqueduct after internal contact explosion; comparing and verifying the structure response result with the simulation result of the existing analysis method; evaluating the damage grade and the overall stability of the aqueduct structure under the action of the blast load by taking the residual bearing capacity of the structure as a judgment basis; and according to a damage grade judgment result, carrying out safety assessment on the overall stability of the aqueduct after explosion. According to the invention, rapid assessment of the damage degree of the aqueduct structure under different internal contact explosion conditions is realized.

The invention discloses a hydraulic structure concrete underwater repair robot based on heterogeneous dual-core cooperative control and an operation method. The system is mainly composed of an ROV carrier, an embedded dry chamber cabin, a vector propeller, a mechanical arm and a Pixhawk + PLC dual-core control system. The equipment adopts a hierarchical control framework: a motion control layer is based on Pixhawk flight control, realizes six-degree-of-freedom motion and attitude overturning, and accurately matches a complex-angle working plane; the operation control layer adopts an industrial PLC to control the dynamic sealing of the dry chamber cabin and the underwater operation surface, and a negative pressure dry environment is quickly established. A plurality of sensors and a manipulator are integrated in the cabin, visual accurate repair is carried out in a water-free state, and negative pressure evacuation is relieved after the repair is completed. The maneuverability of open source flight control and the logic reliability of the PLC are fused, the defects that a single controller is prone to overload and complex attitude alignment is difficult are overcome, and the high efficiency of deep water complex structure repairing and the system stability are guaranteed.

The utility model relates to the technical field of hydraulic engineering, in particular to a hydraulic structural body leakage monitoring device. The device comprises a leakage monitor and a monitoring probe, the leakage monitor is electrically connected with the monitoring probe, the device further comprises an installation assembly, the installation assembly comprises an installation base and an installation block, the installation base is used for being fixedly installed at a drilling hole of a hydraulic structure body, the installation block is arranged on the upper portion of the monitoring probe, and the installation block is arranged on the installation base. The mounting seat is provided with a mounting through hole, the mounting through hole comprises a sliding hole and a penetrating hole from top to bottom, the sliding hole is matched with the mounting block, the penetrating hole is used for allowing the monitoring probe to penetrate through, and the mounting block penetrates through the sliding hole in a sliding mode and is detachably fixed in the sliding hole. By means of the installation assembly, the monitoring probe is detachably installed on the hydraulic structure body, disassembly and assembly of the monitoring probe can be conveniently achieved, and damage to the hydraulic structure body can be avoided.

The invention relates to the technical field of hydraulic structure detection, in particular to a multi-target identification and defect detection method in hydraulic structure intelligent inspection, which comprises the following steps of: acquiring a current hydraulic structure detection range, dividing the current hydraulic structure detection range into a plurality of detection areas, endowing the detection areas with detection priorities according to the type characteristics of the detection areas, static and dynamic data of the detection area are respectively collected; extracting target and defect features in the static and dynamic data of the detection area, and dynamically adjusting the detection priority of the current detection area; acquiring detection priority data of the current detection area, executing defect grading detection operation, and recording a detection result; through the mode, the detection range of the hydraulic structure is divided into regions, and the detection priority of each region is dynamically adjusted, so that the detection efficiency and effect are improved.

The utility model relates to water conservancy construction technical field especially water conservancy construction is with drainage device, including shell, the shell upper end middle part fixedly connected with bracing frame, the bracing frame upper end middle part inserts and is set up the threaded rod with activity, the threaded rod upper end fixedly connected with rotating handle, the shell front end activity is provided with the barrier structure, the shell middle part inserts and is set up the cleaning mechanism with activity, the shell left inner wall rear portion and right inner wall rear portion jointly fixedly connected with the baffle, the baffle middle part fixedly connected with the filter bucket, the shell left end front portion and right end front portion all fixedly connected with the sliding slot, the barrier structure includes the barrier plate, the barrier plate upper end middle part fixedly connected with the mezzanine. The utility model discloses a water conservancy construction is with drainage device, can prevent the silt accumulation of lower part while preventing the water flow, and can prevent the filter mechanism from being blocked when draining, lead to the drainage efficiency reduction.

The invention relates to the technical field of structural design of hydraulic structures, in particular to a structural design method of a permeable lining segment of a high-pressure hydraulic tunnel, which comprises the following steps: calculating the seam opening amount of a segment lining before a sealing gasket fails, judging whether a seam sealing gasket fails or not, and if the seam sealing gasket does not fail, calculating the structural stress when the seam sealing gasket does not fail; otherwise, the interaction force between the lining and the surrounding rock when the segmental lining and the grouting ring are not separated is calculated according to the hydraulic power and the displacement continuous condition, then the combined bearing state of the segmental lining, the grouting ring and the surrounding rock is judged, and the structural stress before and after the lining and the grouting ring are separated is calculated according to the judgment result. The invention provides a water-permeable lining segment structure design method capable of reflecting the influence of a consolidation grouting ring on the stress of a lining structure, and the defect that a segment lining tunnel cannot bear high internal water pressure under the existing hydraulic tunnel segment lining surface force design concept is overcome.

The utility model relates to the technical field of guardrails, in particular to a guardrail for hydraulic structure construction, which comprises a guardrail body and a support, first connecting blocks are welded on two sides of the guardrail body, two second connecting blocks are rotatably connected to the outer wall of the support through connecting shafts, and the first connecting blocks are fixedly connected with the second connecting blocks through clamping mechanisms. The clamping mechanism comprises a plurality of sliding grooves formed in the first connecting block, sliding blocks are slidably connected to the interiors of the sliding grooves, grooves are formed in the outer walls of the sliding grooves, first springs are arranged in the sliding grooves, and the clamping mechanism further comprises a plurality of protruding blocks fixedly connected to the outer wall of the second connecting block. Clamping holes are formed in the outer walls of the multiple protruding blocks, the first connecting blocks and the second connecting blocks can be directly aligned and then get close to each other to complete fixation, during disassembly, disassembly can be achieved only by pulling the movable plates, assembly and disassembly are easier and more convenient, the splicing angle of the two guardrail bodies can be adjusted according to needs, and practicability is high.

The invention discloses an underwater anti-scouring curing agent based on all-solid waste salt-alkali synergistic excitation and a preparation method. The curing agent comprises the following raw materials in parts by weight: 75-85 parts of an all-solid waste-based cementing material; 1.5 to 2.5 parts of an anti-dispersing agent; 0.15 to 0.25 part of a water reducing agent; 0.05 to 0.1 part of a defoaming agent; the all-solid-waste-based cementing material is prepared from 40-50 parts of carbide slag, 20-30 parts of blast furnace slag, 20-30 parts of fly ash and 20-30 parts of ardealite. 45-60 parts of blast furnace slag; 9-11 parts of fly ash and 6-12 parts of ardealite. The preparation method comprises the following steps: pretreating ardealite; activating the solid waste-based cementing material; compounding a functional additive; and packaging the product. The method is suitable for seabed or offshore sludge with high water content, can be directly used after being mixed with seawater, is simple and convenient in construction process, can be quickly applied to various hydraulic structures such as offshore wind power foundations and cross-sea bridges, and meets the anti-scouring and repairing requirements.

The invention discloses a dam three-dimensional deformation monitoring system and method based on fiber bragg grating sensing, and belongs to the technical field of hydraulic structure safety monitoring, and the system comprises fiber bragg grating sensors which are buried in designated positions of a dam body, sense the strain of different positions of the dam body, and obtain the grating wavelength change of each position; the data acquisition and transmission module is used for acquiring strain data of each position of the dam body and sending the strain data to the monitoring center; the data processing and visualization module is used for carrying out calibration, temperature compensation, filtering and analysis processing on the strain data, converting the strain data into displacement data based on an inverse absolute node coordinate method, and generating a three-dimensional visualization image of dam deformation; and the alarm module is used for performing real-time judgment on a threshold value of the dam deformation monitoring data, triggering short message early warning when any deformation amount in the monitoring data exceeds a preset threshold value, and pushing alarm information to a manager. By adopting the system and the method, long-term and real-time monitoring of the three-dimensional deformation of the dam body is realized.

The present application relates to the technical field of aquatic animal breeding and protection, and particularly relates to a water structure component for protecting sound-sensitive aquatic animals and a use method thereof, which comprises a cusp array composed of a plurality of cusp units and used for absorbing underwater noise, and a base fixedly connected with the cusp array and used for mounting the water structure component on an existing structure. In the component, the cusp units are designed according to specific length and height-width ratio and are made of foamed polymer materials, which can not only efficiently guide and dissipate sound waves, but also have excellent structural strength and durability and can effectively resist water flow scouring. The cusp array and the base are integrally connected through grouting forming, and the mechanical interlocking structure formed by the bottom occlusion hemispherical holes greatly enhances the integrity. The steel reinforcement reserved holes arranged on the base can enable the water structure component to be connected with the existing structure in a permanent and reliable manner through mature steel bar planting and secondary grouting processes, so that long-term engineering safety and noise reduction stability are ensured.

The application discloses a soil-rock dam physical mechanics parameter inversion analysis method based on a hybrid intelligent algorithm, and belongs to the technical field of parameter inversion analysis of geotechnical engineering and hydraulic structure engineering. First, a finite element numerical model of soil-rock dam body-dam foundation integration is constructed, and physical mechanics parameters to be inverted and feasible value ranges are determined. Second, a multi-index weighted comprehensive objective function and a hybrid intelligent algorithm framework are constructed. Third, the hybrid intelligent algorithm is iterated and optimized, and a global optimal parameter set is output. Finally, inversion result precision is verified. The application can solve problems of slow late-stage convergence, easy falling into local optimization, insufficient local search capability and difficulty in giving consideration to global search and local fine optimization when a single intelligent algorithm is applied to soil-rock dam physical mechanics parameter inversion, and realizes efficient, high-precision and high-stability inversion of multi-dimensional soil-rock dam physical mechanics parameters.

The invention relates to the technical field of water conservancy and hydropower engineering deformation monitoring equipment, in particular to a communicating pipe type monitoring equipment pipeline system response time and measurement error automatic testing device which comprises a communicating liquid supply system, a sensor device, a communicating pipe system, a data acquisition device and a control workstation. According to the communication pipe type monitoring equipment pipeline system response time and measurement error automatic testing device, through integration of the high-precision sensor and the simulation system, whole-process automation from data acquisition to time response is achieved, compared with a traditional manual testing method, the testing efficiency is improved by 90% or above, manual reading errors are eliminated, and the testing accuracy is improved. The original programmable modular pipeline system realizes accurate control and combined test of multivariable variables such as temperature, pipe diameter, pipe length and liquid type for the first time, improves the applicability of the hydrostatic leveling device in hydraulic structure deformation monitoring, expands the application range, and solves the problem that automation of hydraulic structure deformation monitoring cannot be realized.

This invention discloses an automatic identification method for siltation in the inlet channel of a sluice gate, integrating drone aerial photography. Relating to the field of image recognition, this invention automatically optimizes flight parameters through a dynamic feedback adjustment mechanism, avoiding the subjectivity and inefficiency of traditional manual adjustments, and significantly improving operational accuracy and stability. Simultaneously, it constructs dedicated segmentation models for different hydrological conditions, effectively addressing complex environmental challenges through a dual-model fusion processing strategy, greatly improving the accuracy and robustness of siltation identification. Furthermore, it integrates an intelligent time-consuming optimization mechanism, automatically selecting the optimal segmentation accuracy through experimental data-driven methods, minimizing processing time while ensuring monitoring quality. This provides reliable technical support for the efficient operation and maintenance management of hydraulic structures, truly realizing an intelligent and standardized operation mode from data acquisition to output.

The invention provides a hydraulic structure periodicity reliability evaluation method and device based on monitoring and early warning, and relates to the technical field of hydraulic structure health monitoring. The method comprises the following steps: establishing a dynamic model containing a basic random variable set, defining a concerned physical quantity vector and setting prior probability distribution; fuzzy fusion is carried out on the denoised multi-source monitoring signals to obtain real-time graded early warning; carrying out representative time period division; extracting a time sequence feature vector from a denoised signal; correcting prior probability distribution and selecting a representative point; obtaining a generalized speed according to deterministic dynamics analysis; and performing graded early warning according to the comprehensive membership degree. According to the method, physical interpretability and data assimilation capability are considered, and large-scale Monte Carlo is replaced by representative point approximation and numerical evolution, so that the calculation amount can be reduced, and the real-time performance and precision of dynamic reliability evaluation can be improved.