A hydraulic engineering operation state monitoring method and system
By real-time monitoring of multiple data at key locations of water conservancy projects and combining them with meteorological and geomorphological analysis, the real-time and comprehensiveness issues of traditional monitoring methods have been resolved, enabling efficient and accurate risk management and resource optimization of water conservancy projects.
Patent Information
- Application Number
- CN202510359072.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2045-03-25
AI Technical Summary
Traditional water conservancy project operation status monitoring methods rely on manual inspections and local equipment, which cannot achieve continuous and real-time monitoring of a wide area. It is difficult to fully and accurately reflect the overall operation status of the water conservancy project, which reduces risk management capabilities.
By real-time monitoring of stress and strain, seepage pressure, opening position, water level and flow rate data at the dam, sluice and water areas of the water conservancy project, and combining it with regional meteorological and topographic data, a comprehensive analysis is conducted using the central data processing center to generate operation risk scores and emergency control plans.
It has achieved continuous and real-time monitoring of a wide range of water conservancy projects, which can accurately reflect the overall operating status, timely discover potential risks, improve risk management capabilities and resource utilization efficiency, and ensure the safe and stable operation of the project.
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Figure CN120176766B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of intelligent monitoring technology, and in particular to a method and system for monitoring the operating status of a water conservancy project. Background Art
[0002] Water conservancy projects play a vital role in modern society, widely used in water resource management, flood control and drainage, hydropower generation, irrigation, and other fields. As water conservancy projects continue to expand in scale and their technology becomes increasingly complex, ensuring their safe and efficient operation has become increasingly important. To achieve this goal, real-time monitoring of water conservancy project operations and the timely identification of potential safety hazards have become critical aspects of water conservancy project management.
[0003] However, traditional methods for monitoring the operating status of water conservancy projects mainly rely on manual inspections and physical inspections of local equipment, such as water level meters, flow meters, and pressure sensors. Although these methods can provide real-time monitoring data to a certain extent, they are subject to the time and space limitations of manual inspections and cannot achieve continuous, real-time monitoring of a wide area. It is difficult to fully and accurately reflect the overall operating status of water conservancy projects, thereby reducing the risk management capabilities of water conservancy projects. Summary of the Invention
[0004] Based on this, it is necessary for the present invention to provide a method and system for monitoring the operation status of a water conservancy project to solve at least one of the above technical problems.
[0005] To achieve the above object, a method for monitoring the operation status of a water conservancy project comprises the following steps:
[0006] Step S1: real-time monitoring of corresponding dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data at the dam, sluice, and water area of the water conservancy project; obtaining regional meteorological data and regional topographic data corresponding to the surrounding area of the water conservancy project, and transmitting the data together with the dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data to a central data processing center corresponding to the water conservancy project;
[0007] Step S2: performing dam displacement analysis on the dam body corresponding to the water conservancy project based on the water conservancy dam body stress and strain data and the water conservancy dam body seepage pressure data in the central data processing center to obtain the water conservancy dam body seepage displacement; performing water gate opening statistics on the water conservancy project corresponding to the water conservancy project based on the water gate opening position data to obtain the water conservancy sluice opening;
[0008] Step S3: Based on the regional meteorological data and the regional topographic data, the water level data and the water velocity data are analyzed for potential impacts on the water area to obtain meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project;
[0009] Step S4: Based on the seepage displacement of the water conservancy dam body and the opening of the water conservancy sluice, and in combination with the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project, the water conservancy operation risk of the operating facilities corresponding to the water conservancy project is monitored to obtain a water conservancy project operation risk score; based on the water conservancy project operation risk score, emergency early warning control is performed on the operating facilities corresponding to the water conservancy project to generate an emergency control plan for the operation status of the water conservancy project.
[0010] Furthermore, step S1 includes the following steps:
[0011] Step S11: installing corresponding strain sensors and seepage pressure sensors at the dam body corresponding to the water conservancy project, installing corresponding position sensors at the sluice gate corresponding to the water conservancy project, and installing corresponding water level sensors and flow rate sensors at the water area corresponding to the water conservancy project;
[0012] Step S12: using a strain sensor and a seepage pressure sensor at the dam body corresponding to the water conservancy project to monitor the corresponding stress and strain data of the water conservancy dam body and the seepage pressure data of the water conservancy dam body in real time, and using a position sensor at the sluice gate corresponding to the water conservancy project to monitor the corresponding sluice opening position data in real time, and using a water level sensor and a flow rate sensor at the water area corresponding to the water conservancy project to monitor the corresponding water level data and water area flow rate data in real time;
[0013] Step S13: Acquire regional meteorological data corresponding to the surrounding area of the water conservancy project;
[0014] Step S14: obtaining regional topographic data corresponding to the surrounding area of the water conservancy project;
[0015] Step S15: The regional meteorological data and regional topographic data corresponding to the periphery of the water conservancy project, as well as the water conservancy dam stress and strain data, water conservancy dam seepage pressure data, sluice gate opening position data, water level data and water flow rate data are transmitted to the central data processing center corresponding to the water conservancy project through wireless communication technology.
[0016] Furthermore, the regional meteorological data in step S13 includes rainfall, temperature, air pressure and wind speed corresponding to the area surrounding the water conservancy project.
[0017] Furthermore, step S2 includes the following steps:
[0018] Step S21: performing time-series synchronization alignment on the water conservancy dam stress and strain data and the water conservancy dam seepage pressure data in the central data processing center according to the time series, so as to obtain the corresponding dam stress and strain data and dam seepage pressure data in the same time series;
[0019] Step S22: obtaining the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body of the water conservancy project through the dam body corresponding to the water conservancy project, and performing dam body physical structure modeling on the dam body corresponding to the water conservancy project based on the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body to generate a dam body physical structure mechanical model corresponding to the water conservancy project;
[0020] Step S23: performing dam displacement analysis on the dam physical structure mechanics model corresponding to the water conservancy project based on the corresponding dam stress and strain data and dam seepage pressure data in the same time sequence to obtain the seepage displacement of the water conservancy dam;
[0021] Step S24: performing sluice gate opening statistics on the sluice gates corresponding to the water conservancy project based on the sluice gate opening position data to obtain the water conservancy sluice gate opening.
[0022] Furthermore, step S23 includes the following steps:
[0023] Step S231: using a finite element analysis method to divide the dam body physical structure mechanical model corresponding to the water conservancy project into various small units, so as to generate small units of the dam body model corresponding to each water conservancy project;
[0024] Step S232: Based on the corresponding dam stress and strain data and dam seepage pressure data in the same time sequence, the dam body model micro-units corresponding to each water conservancy project are analyzed for dam body structural characteristics. The corresponding stress and strain distribution in each micro-unit is calculated in combination with the dam body stress and strain data to determine the corresponding weak points and stress concentration areas of the dam body. The corresponding flow path and pressure distribution of the seepage in each micro-unit are analyzed in combination with the dam body seepage pressure data to obtain a dam body structural characteristic parameter set reflecting the dam body stress and seepage pressure.
[0025] Step S233: Obtaining the temperature change, uneven settlement, surrounding earthquake activity, and surrounding water flow impact corresponding to the dam body;
[0026] Step S234: Based on the dam body structural characteristic parameter set reflecting the dam body stress and seepage pressure, and in combination with the temperature change, uneven settlement, surrounding seismic activity, and surrounding water flow impact corresponding to the dam body, a dam body displacement correlation analysis is performed on the dam body physical structure mechanical model corresponding to the water conservancy project to quantitatively evaluate the influence weight and interaction relationship between various factors on the dam body displacement, including stress and strain, seepage pressure, temperature, settlement, seismic activity, and water flow impact factors, so as to generate an influence matrix of dam body displacement correlation factors;
[0027] Step S235: Based on the influence weights and interaction relationships of the factors in the dam displacement correlation factor influence matrix and in combination with the principles of structural mechanics, a dam displacement coupling calculation is performed on the dam physical structure mechanics model corresponding to the water conservancy project to obtain the seepage displacement of the water conservancy dam.
[0028] Furthermore, step S24 includes the following steps:
[0029] Step S241: establishing an opening position coordinate system for the sluice corresponding to the water conservancy project based on the sluice opening position data to generate a corresponding sluice opening position coordinate system for the water conservancy project;
[0030] Step S242: Obtain corresponding gate types through the sluice gate corresponding to the water conservancy project, including flat gates and radial gates;
[0031] Step S243: performing gate opening parameter analysis on the corresponding water conservancy project sluice gate opening position coordinate system based on the gate type, so as to obtain the corresponding screw rotation position of the flat gate through the water conservancy project sluice gate opening position coordinate system, and calculate the opening height of the flat gate corresponding to the opening process based on the screw rotation position to obtain the corresponding gate opening height; and for the radial gate, the corresponding gate opening arc is calculated by measuring the corresponding opening position in the water conservancy project sluice gate opening position coordinate system, and the water flow area of the radial gate corresponding to the opening process is calculated based on the gate opening arc to obtain the corresponding gate opening water flow area size, so as to obtain the water conservancy project gate opening parameters;
[0032] Step S244: Obtain the corresponding sluice gate opening flow rate, upstream and downstream water level difference and water flow turbulence correction coefficient during the opening process through the sluice gate corresponding to the water conservancy project, and perform statistical calculation of the sluice gate opening of the water conservancy project based on the corresponding sluice gate opening flow rate, upstream and downstream water level difference and water flow turbulence correction coefficient combined with the water conservancy project gate opening parameters to obtain the water conservancy sluice gate opening.
[0033] Furthermore, step S3 includes the following steps:
[0034] Step S31: spatially registering the regional meteorological data and the regional topographic data to obtain corresponding regional multi-source datasets in the same geographic coordinate system;
[0035] Step S32: Meteorological and topographical characteristics are analyzed for the corresponding regional multi-source datasets in the same geographic coordinate system by combining physical process simulation to analyze the distribution patterns of rainfall, temperature, air pressure, and wind speed. Furthermore, geomechanics and hydrological principles are combined to analyze the changing trends of terrain elevation, slope, and aspect in the water conservancy project area, including water flow, soil erosion, and groundwater recharge, to obtain physical characteristic analysis results that reflect the inherent laws of meteorology and topography.
[0036] Step S33: Based on the results of the physical property analysis that reflect the inherent laws of meteorology and topography, a correlation network is constructed between the corresponding regional multi-source datasets in the same geographic coordinate system and the corresponding water areas in the water conservancy project, so as to analyze the correlation strength and influence relationship path between each meteorological element and topographic element and the water area variable, determine the influence relationship between meteorological elements and evaporation, infiltration, and surface runoff, and thus affect the corresponding water level and flow rate of the water area, and study the influence relationship between topography and water flow resistance, confluence path, and water body storage capacity, and thus affect the corresponding water level and flow rate of the water area, so as to use meteorological, topographic, and water area related variables as nodes and the influence relationship between them as edges to obtain a water area-meteorology-topography correlation network;
[0037] Step S34: Based on the water area-meteorology-topography correlation network, the water area water level data and the water area flow rate data are mined and analyzed for potential impacts on the water area, so as to mine and analyze the meteorological and topographic factors corresponding to the specific and significant impacts on the water level and flow rate of the water area, including precipitation intensity, wind speed, terrain slope and terrain water system connectivity, and obtain the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project.
[0038] Furthermore, step S4 includes the following steps:
[0039] Step S41: obtaining the corresponding dam body seepage displacement rate and dam body cumulative displacement through the hydraulic dam body seepage displacement;
[0040] Step S42: obtaining the corresponding upstream and downstream water level difference and water flow velocity through the water area of the water conservancy project;
[0041] Step S43: calculating the degree of matching between the sluice gate opening and the corresponding upstream and downstream water level difference and water flow velocity based on the sluice gate opening, so as to obtain the degree of matching between the sluice gate opening and the upstream and downstream water level difference and water flow velocity;
[0042] Step S44: assigning corresponding water conservancy impact weights to the dam body seepage displacement rate, dam body cumulative displacement, and the degree of matching between the sluice gate opening and the upstream and downstream water level difference and water flow velocity, and combining the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project to quantitatively calculate the water conservancy operation risk of the operating facilities corresponding to the water conservancy project, to obtain a water conservancy project operation risk score;
[0043] Step S45: performing emergency early warning control on the operating facilities corresponding to the water conservancy project according to the water conservancy project operation risk score, so as to generate an emergency control plan for the operation status corresponding to the water conservancy project.
[0044] Furthermore, the emergency early warning control of the operating facilities corresponding to the water conservancy project based on the water conservancy project operation risk score described in step S45 includes comparing and judging the water conservancy project operation risk score based on a preset operation risk threshold. If the water conservancy project operation risk score is less than the preset operation risk threshold, the operating facilities corresponding to the water conservancy project continue to be monitored; if the water conservancy project operation risk score is greater than or equal to the preset operation risk threshold, the operating facilities automatically start the early warning mechanism to send an early warning signal to the water conservancy project management personnel, and respond to generate corresponding adjustments to the sluice opening, control the water level of the reservoir water area, and reduce the corresponding displacement pressure of the dam body, so as to generate an emergency control plan for the operation status corresponding to the water conservancy project.
[0045] Furthermore, the present invention also provides a water conservancy project operation status monitoring system for executing the water conservancy project operation status monitoring method described above, the water conservancy project operation status monitoring system comprising:
[0046] The water conservancy project data acquisition module is used to monitor the corresponding water conservancy dam body stress and strain data, water conservancy dam body seepage pressure data, water gate opening position data, water level data and water flow rate data in real time at the dam body, water gate and water area corresponding to the water conservancy project; obtain regional meteorological data and regional topographic data corresponding to the water conservancy project, and transmit them together with the water conservancy dam body stress and strain data, water conservancy dam body seepage pressure data, water gate opening position data, water level data and water flow rate data to the central data processing center corresponding to the water conservancy project;
[0047] The dam displacement and opening statistics module is used to analyze the dam displacement of the corresponding dam of the water conservancy project based on the stress and strain data of the dam body and the seepage pressure data of the dam body in the central data processing center to obtain the seepage displacement of the dam body; and to perform sluice opening statistics on the corresponding sluice of the water conservancy project based on the sluice opening position data to obtain the sluice opening of the water conservancy project;
[0048] The water area potential impact mining module is used to mine and analyze the water area potential impact of water level data and water area flow rate data based on regional meteorological data and regional topographic data, so as to obtain the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project;
[0049] The water conservancy project emergency warning module is used to monitor the water conservancy operation risk of the operating facilities corresponding to the water conservancy project based on the seepage displacement of the water conservancy dam body and the opening of the water conservancy sluice, combined with the meteorological potential factors and terrain potential factors corresponding to the water area of the water conservancy project, to obtain the water conservancy project operation risk score; according to the water conservancy project operation risk score, the operating facilities corresponding to the water conservancy project are emergency warned and controlled to generate the corresponding operation status emergency control plan of the water conservancy project.
[0050] Beneficial effects of the present invention:
[0051] 1. The method for monitoring the operation status of a water conservancy project proposed in the present invention has the beneficial effect of real-time monitoring of stress and strain data of the dam body, seepage pressure data of the dam body, sluice opening position data, water level data of the water area, and flow velocity data of the water area at key locations such as the dam body, sluice gates, and water area. This method is like installing countless pairs of sharp "eyes" for the water conservancy project, capturing every subtle change in the operation of the project in real time. At the same time, obtaining regional meteorological data and regional topographic data corresponding to the surrounding area of the water conservancy project further broadens the monitoring scope. Meteorological factors such as precipitation and wind speed directly affect the water level and flow velocity of the water area, while topography determines the direction, convergence, and discharge path of the water flow. Transmitting all of this data to a central data processing center builds a large and comprehensive data resource library. This resource library not only provides a rich data foundation for subsequent analysis work, but also can comprehensively consider the impact of various factors on the operation of the water conservancy project. It breaks the data island effect, thereby enabling continuous and real-time monitoring of a wide area and more comprehensively and accurately reflecting the overall operation status of the water conservancy project. Secondly, by analyzing the dam displacement based on the stress-strain data and seepage pressure data of the dam, and accurately calculating the seepage displacement of the dam, the deformation of the dam under the influence of various complex factors can be promptly understood. Once the displacement is found to be beyond the normal range, targeted measures can be quickly taken, such as strengthening the dam and adjusting the water storage strategy. The sluice opening position data is used to calculate the sluice opening degree. As a key facility for controlling water flow, the accurate control of the sluice opening degree directly affects the various functions of the water conservancy project, such as flood control, irrigation, and shipping. Accurate sluice opening data allows managers to adjust the opening degree according to actual needs, such as increasing the opening degree to quickly release floodwater during flood control during the flood season and accurately controlling the irrigation water supply during the dry season. This allows for the scientific and rational allocation and efficient utilization of water resources, and improves the scientific and stable operation of water conservancy projects. Then, by dedicating ourselves to exploring the potential connections between regional meteorological data and regional topographic data and water level data and water flow rate data, for example, heavy rainfall will rapidly increase the amount of water in the water area, causing the water level to rise and the flow rate to accelerate, while continuous drought will cause the water level to drop. By deeply analyzing regional meteorological data, we can predict in advance the trend of water level and flow rate changes caused by meteorological factors. The complex terrain forms special water flow channels, affecting the convergence and dispersion of water flow, and thus changing the water level and flow rate distribution. By exploring the potential factors of the terrain, we can clearly understand the natural characteristics of water areas in different areas and provide a scientific basis for the planning and operation of water conservancy projects. For example, in low-lying areas prone to water accumulation, drainage facilities can be optimized in advance or special water level control strategies can be formulated. This kind of exploration and analysis of potential meteorological factors and potential terrain factors can enable managers to plan ahead and respond in advance to the adverse effects that may be caused to the water areas of water conservancy projects due to meteorological and topographic factors, thereby ensuring the safe and stable operation of water conservancy projects.Finally, by integrating the data obtained in the previous steps with the analysis results, comprehensive risk monitoring and emergency control of the water conservancy project operation facilities are carried out. This process is like building a comprehensive "risk radar" for the operation of water conservancy projects. The risk score calculated by comprehensively considering multiple key factors can accurately reflect the risk level of the water conservancy project in its current state, and carry out emergency early warning control of the corresponding operation facilities of the water conservancy project according to the water conservancy project operation risk score, and generate an emergency control plan for the operation status of the water conservancy project, providing a strong guarantee for responding to emergencies. When the risk score exceeds the safety threshold, the early warning mechanism can be triggered in time to notify relevant personnel to take emergency measures. The emergency control plan is like a detailed "battle plan" that clearly defines the specific actions to be taken under different risk levels, such as adjusting the sluice opening, controlling the water level of the reservoir water area, and reducing the corresponding displacement pressure of the dam body. This series of operations can greatly improve the ability of water conservancy projects to respond to risks, minimize disaster losses, and thus improve the risk management capabilities of water conservancy projects.
[0052] 2. The water conservancy project operation status monitoring system proposed in the present invention is composed of a water conservancy project data acquisition module, a dam displacement and opening statistics module, a water area potential impact mining module and a water conservancy project emergency warning module. It can implement any water conservancy project operation status monitoring method described in the present invention, and is used to combine the operations between the computer programs running on each module to implement the water conservancy project operation status monitoring method. The internal structures of the system cooperate with each other, which can greatly reduce duplication of work and manpower investment, and can quickly and effectively provide a more accurate and efficient water conservancy project operation status monitoring process, thereby simplifying the operation process of the water conservancy project operation status monitoring system. BRIEF DESCRIPTION OF THE DRAWINGS
[0053] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments thereof made with reference to the following drawings:
[0054] Figure 1 Schematic diagram of the steps of the method for monitoring the operating status of a water conservancy project according to the present invention;
[0055] Figure 2 for Figure 1 Detailed step flow diagram of step S1;
[0056] Figure 3 for Figure 1 Detailed step flow chart of step S2 in FIG. DETAILED DESCRIPTION
[0057] The following is a clear and complete description of the technical method of the present invention in conjunction with the accompanying drawings. It is obvious that the embodiments described are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts are within the scope of protection of the present invention.
[0058] In addition, the accompanying drawings are merely schematic illustrations of the present invention and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor and / or microcontroller approaches.
[0059] It should be understood that although the terms "first," "second," and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used solely to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the exemplary embodiments. The term "and / or" as used herein includes any and all combinations of one or more of the listed associated items.
[0060] To achieve this, please refer to Figures 1 to 3 The present invention provides a method for monitoring the operation status of a water conservancy project, the method comprising the following steps:
[0061] Step S1: real-time monitoring of corresponding dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data at the dam, sluice, and water area of the water conservancy project; obtaining regional meteorological data and regional topographic data corresponding to the surrounding area of the water conservancy project, and transmitting the data together with the dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data to a central data processing center corresponding to the water conservancy project;
[0062] Step S2: performing dam displacement analysis on the dam body corresponding to the water conservancy project based on the water conservancy dam body stress and strain data and the water conservancy dam body seepage pressure data in the central data processing center to obtain the water conservancy dam body seepage displacement; performing water gate opening statistics on the water conservancy project corresponding to the water conservancy project based on the water gate opening position data to obtain the water conservancy sluice opening;
[0063] Step S3: Based on the regional meteorological data and the regional topographic data, the water level data and the water velocity data are analyzed for potential impacts on the water area to obtain meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project;
[0064] Step S4: Based on the seepage displacement of the water conservancy dam body and the opening of the water conservancy sluice, and in combination with the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project, the water conservancy operation risk of the operating facilities corresponding to the water conservancy project is monitored to obtain a water conservancy project operation risk score; based on the water conservancy project operation risk score, emergency early warning control is performed on the operating facilities corresponding to the water conservancy project to generate an emergency control plan for the operation status of the water conservancy project.
[0065] In the embodiment of the present invention, please refer to Figure 1 FIG. 1 is a flow chart showing the steps of the method for monitoring the operation status of a water conservancy project according to the present invention. In this example, the method for monitoring the operation status of a water conservancy project includes the following steps:
[0066] Step S1: real-time monitoring of corresponding dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data at the dam, sluice, and water area of the water conservancy project; obtaining regional meteorological data and regional topographic data corresponding to the surrounding area of the water conservancy project, and transmitting the data together with the dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data to a central data processing center corresponding to the water conservancy project;
[0067] In an embodiment of the present invention, a high-precision vibrating-wire strain sensor and a piezoresistive seepage pressure sensor are installed at the dam body corresponding to the water conservancy project. The strain sensor collects stress and strain data of the dam body every 10 minutes, and converts the data into stress and strain values by measuring the change in its own vibrating-wire frequency. For example, the stress value at a certain position of the dam body measured at a certain moment is 10 MPa. The seepage pressure sensor collects seepage pressure data of the dam body every 15 minutes, and outputs data by sensing water pressure changes. For example, the seepage pressure measured at a depth of 5 meters in the dam body is 0.5 MPa. At the sluice, a photoelectric position sensor is used to collect the sluice opening position data once per second, and the position is determined by detecting the reflective mark on the gate. If the current sluice opening height is 2.5 meters, the data is recorded. In the water area, an ultrasonic water level sensor is used to measure the water level data every 30 seconds, and the water level is calculated by transmitting and receiving ultrasonic waves, such as the current water level of 10.2 meters. A Doppler flow meter is used to collect water flow velocity data once a second, and the Doppler effect is used to measure the water flow velocity, such as the current water flow velocity is 1.8 meters per second. A meteorological monitoring station is set up around the water conservancy project, equipped with anemometers, rain gauges, temperature, and air pressure sensors. Regional meteorological data is collected every 10 minutes, such as wind speed of 3 meters per second, rainfall of 5 mm, temperature of 25°C, and air pressure of 1200Pa. Regional topographic data is obtained by combining satellite remote sensing technology with ground surveying and mapping. For example, satellite remote sensing images are used to obtain information such as the direction of mountains and river distribution. Total stations, levels, etc. are used to measure terrain slope, elevation and other data on the spot. All collected data is transmitted to the central data processing center corresponding to the water conservancy project through 4G wireless communication modules to ensure real-time and accurate data transmission.
[0068] Step S2: performing dam displacement analysis on the dam body corresponding to the water conservancy project based on the water conservancy dam body stress and strain data and the water conservancy dam body seepage pressure data in the central data processing center to obtain the water conservancy dam body seepage displacement; performing water gate opening statistics on the water conservancy project corresponding to the water conservancy project based on the water gate opening position data to obtain the water conservancy sluice opening;
[0069] In an embodiment of the present invention, by using Python data analysis libraries such as NumPy and SciPy in a central data processing center, combined with professional finite element analysis software ANSYS, a dam displacement analysis is performed on the stress and strain data of the water conservancy dam body and the seepage pressure data of the water conservancy dam body, so that the stress and strain data and the seepage pressure data are input into the physical structure mechanics model of the dam body established in ANSYS, and the finite element algorithm is used to simulate the mechanical behavior of the dam body under these loads and boundary conditions. By analyzing the calculation results, the displacement information of the dam body at different positions is extracted to obtain the seepage displacement of the water conservancy dam body. For example, the displacement size and direction of a certain point on the dam top under the current working conditions are obtained by calculation, including the displacement size of the center of the dam top. 8 mm, in the direction of the left, the displacement size of the 1 / 4 on the left side of the dam body is 5 mm, in the direction of 15° downward and to the left, the displacement size of the 1 / 4 on the right side of the dam body is 6 mm, in the direction of 20° downward and to the right, the displacement size of the center of the dam bottom is 3 mm, in the direction of the right, for the sluice gate opening statistics, the Python Pandas library is used to process the sluice gate opening position data, assuming that the initial closing position of the sluice gate is 0 meters and the maximum opening position is 5 meters. According to the current sluice gate opening position data, the sluice gate opening is obtained by calculating (current opening position - initial closing position) ÷ (maximum opening position - initial closing position) × 100%. For example, if the current sluice gate opening position is 3 meters, the sluice gate opening is (3-0) ÷ (5-0) × 100% = 60%, and the hydraulic sluice gate opening is finally obtained.
[0070] Step S3: Based on the regional meteorological data and the regional topographic data, the water level data and the water velocity data are analyzed for potential impacts on the water area to obtain meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project;
[0071] In an embodiment of the present invention, by using the geographic information system (GIS) software ArcGIS and related libraries of Python, the water level data and water velocity data of the water area are mined and analyzed based on the regional meteorological data and regional topographic data. In ArcGIS, the meteorological data and topographic data are processed using spatial analysis tools. For example, the meteorological data points are interpolated by the "Kriging interpolation" tool to generate a continuous distribution layer of meteorological elements such as rainfall and temperature, and their spatial distribution patterns are analyzed. In combination with the principles of geomechanics and hydrology, the topographic data are processed using surface analysis tools such as "slope" and "aspect" to obtain terrain elevation, slope, aspect, etc. Data is collected and analyzed for its impact on the movement of water flow in the water area. The Python NetworkX library is used to build an association network, with meteorological elements (such as rainfall and wind speed), topographic elements (such as terrain slope and water system connectivity) and water area variables (such as water level and flow velocity) as nodes. The influence relationship between the elements is determined as edges based on physical principles and data analysis. By traversing the association network, the influence intensity of each node on the water level and flow velocity nodes of the water area is calculated, and the meteorological and topographic elements with a significant impact on the water level and flow velocity of the water area are screened out. The meteorological potential factors (such as precipitation intensity and wind speed) and topographic potential factors (such as terrain slope and topographic water system connectivity) corresponding to the water area of the water conservancy project are obtained.
[0072] Step S4: Based on the seepage displacement of the water conservancy dam body and the opening of the water conservancy sluice, and in combination with the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project, the water conservancy operation risk of the operating facilities corresponding to the water conservancy project is monitored to obtain a water conservancy project operation risk score; based on the water conservancy project operation risk score, emergency early warning control is performed on the operating facilities corresponding to the water conservancy project to generate an emergency control plan for the operation status of the water conservancy project.
[0073] In an embodiment of the present invention, a program is written in Python at a central data processing center to quantitatively calculate the seepage displacement of the water conservancy dam body obtained by the previous analysis within a period of time, collect data every 10 minutes, and send the data to the data collector of the monitoring center through wired transmission. At the monitoring center, the collected seepage displacement of the water conservancy dam body is analyzed using data processing software, and the seepage displacement rate of the dam body is obtained by calculating the ratio of the difference between two adjacent collected data and the time interval. At the same time, the displacement data collected each time is accumulated to obtain the cumulative displacement of the dam body, and the water level sensors are installed upstream and downstream of the water area of the water conservancy project. The water level sensor uses a pressure water level gauge to measure the water level data every 15 minutes; the flow meter uses a Doppler flow meter to measure the water flow velocity data every 20 minutes. These devices transmit data to the server of the monitoring center in real time through the wireless communication module. By querying the upstream and downstream water level data at the same time in the database, the difference between the two is calculated to obtain the upstream and downstream water level difference. For the water flow velocity data, the average value of the measured values within a certain time period (such as 1 hour) is taken as the water flow velocity for that time period. At the same time, a special opening matching degree calculation program is run. The program is based on the hydraulic principles and the mathematical model established by historical data to calculate the water conservancy sluice opening, upstream and downstream water level difference, and the water level difference between the upstream and downstream. and the relationship between the flow rate and the sluice gate opening. The program first divides the sluice gate opening into multiple intervals according to the different value ranges of the sluice gate opening. For each interval, the theoretical optimal matching value is determined by combining the historical data of the upstream and downstream water level difference and the water flow rate. Then, the current upstream and downstream water level difference and the water flow rate are substituted into the model to calculate the actual matching value. By comparing the actual matching value with the theoretical optimal matching value, the matching degree between the sluice gate opening and the upstream and downstream water level difference and the water flow rate is finally obtained. The hydraulic influence weights of the dam body seepage displacement rate, the dam body cumulative displacement and the matching degree between the sluice gate opening and the upstream and downstream water level difference and the water flow rate are pre-set on the server to 0.3 respectively. , 0.2 and 0.5. At the same time, combined with the meteorological potential factors and terrain potential factors corresponding to the water area of the water conservancy project, the meteorological potential factors are obtained in real time through the meteorological station, including precipitation intensity, wind speed and other information; the terrain potential factors are determined according to the previous geological exploration data, such as terrain slope and terrain water system connectivity. The meteorological potential factors and terrain potential factors are converted into quantitative scores, and the weighted summation method is used to quantitatively calculate the water conservancy operation risk, that is, the water conservancy project operation risk score = dam body seepage displacement rate × 0.3 + dam body cumulative displacement × 0.2 + matching degree × 0.5 + meteorological potential factor score + terrain potential factor score, so as to obtain the water conservancy project operation risk score.Finally, based on the preset operation risk threshold of 80 points, the calculated risk score is compared with the threshold. If the risk score is less than 80 points, real-time data monitoring continues; if the risk score is greater than or equal to 80 points, the emergency warning mechanism is automatically activated, and a warning signal is sent to the water conservancy project management personnel through the SMS platform. At the same time, the pre-written emergency plan generation program is called to generate measures such as adjusting the sluice opening and controlling the water level in the reservoir area according to the specific risk situation, forming an emergency control plan for the corresponding operation status of the water conservancy project.
[0074] Furthermore, step S1 includes the following steps:
[0075] Step S11: installing corresponding strain sensors and seepage pressure sensors at the dam body corresponding to the water conservancy project, installing corresponding position sensors at the sluice gate corresponding to the water conservancy project, and installing corresponding water level sensors and flow rate sensors at the water area corresponding to the water conservancy project;
[0076] Step S12: using a strain sensor and a seepage pressure sensor at the dam body corresponding to the water conservancy project to monitor the corresponding stress and strain data of the water conservancy dam body and the seepage pressure data of the water conservancy dam body in real time, and using a position sensor at the sluice gate corresponding to the water conservancy project to monitor the corresponding sluice opening position data in real time, and using a water level sensor and a flow rate sensor at the water area corresponding to the water conservancy project to monitor the corresponding water level data and water area flow rate data in real time;
[0077] Step S13: Acquire regional meteorological data corresponding to the surrounding area of the water conservancy project;
[0078] Step S14: obtaining regional topographic data corresponding to the surrounding area of the water conservancy project;
[0079] Step S15: The regional meteorological data and regional topographic data corresponding to the periphery of the water conservancy project, as well as the water conservancy dam stress and strain data, water conservancy dam seepage pressure data, sluice gate opening position data, water level data and water flow rate data are transmitted to the central data processing center corresponding to the water conservancy project through wireless communication technology.
[0080] As an embodiment of the present invention, refer to Figure 2 As shown, Figure 1 Detailed step flow diagram of step S1 in FIG. 1 , in this embodiment, step S1 includes the following steps:
[0081] Step S11: installing corresponding strain sensors and seepage pressure sensors at the dam body corresponding to the water conservancy project, installing corresponding position sensors at the sluice gate corresponding to the water conservancy project, and installing corresponding water level sensors and flow rate sensors at the water area corresponding to the water conservancy project;
[0082] In an embodiment of the present invention, high-precision vibrating-wire strain sensors and piezoresistive osmotic pressure sensors are selected at the dam body corresponding to the water conservancy project. A strain sensor is installed every 10 meters at key stress-bearing locations inside the dam body, such as the connection between the dam foundation and the dam body, and the water-facing surface of the dam body. A total of 50 strain sensors are installed. The osmotic pressure sensors are buried at different depths inside the dam body by drilling, namely at 5 meters, 10 meters, and 15 meters, with 3 sensors installed at each depth. At the sluice gate corresponding to the water conservancy project, a photoelectric position sensor is used and installed next to the lifting track of the sluice gate. The sluice opening position is determined by detecting the reflective mark on the gate. A total of 2 sensors are installed to ensure that the position changes of the gate can be accurately monitored. At the water area corresponding to the water conservancy project, ultrasonic water level sensors and Doppler flow sensors are selected. Three water level sensors are installed upstream and downstream of the water area, with an interval of 50 meters. The water level is measured by transmitting and receiving ultrasonic waves. Four Doppler flow sensors are installed at representative locations where the water flow is relatively turbulent to measure the water flow velocity using the Doppler effect.
[0083] Step S12: using a strain sensor and a seepage pressure sensor at the dam body corresponding to the water conservancy project to monitor the corresponding stress and strain data of the water conservancy dam body and the seepage pressure data of the water conservancy dam body in real time, and using a position sensor at the sluice gate corresponding to the water conservancy project to monitor the corresponding sluice opening position data in real time, and using a water level sensor and a flow rate sensor at the water area corresponding to the water conservancy project to monitor the corresponding water level data and water area flow rate data in real time;
[0084] In an embodiment of the present invention, a strain sensor and a seepage pressure sensor collect data at a frequency of once per second at the dam body. The strain sensor measures the frequency change of its own vibrating wire and converts it into stress and strain data of the dam body. For example, when the dam body is subjected to a slight deformation, the frequency of the strain sensor vibrating wire changes from 1000Hz to 1005Hz, and the stress and strain value of the dam body is obtained through conversion. The seepage pressure sensor senses the change in water pressure and converts it into seepage pressure data of the dam body. For example, at a depth of 10 meters, the seepage pressure sensor detects a water pressure of 1.2MPa. , recorded as dam body seepage pressure data. At the sluice gate, the position sensor monitors the sluice gate opening position data at a frequency of 2 times per second. By detecting the position change of the reflective mark, the height of the sluice gate opening is determined. For example, the current sluice gate opening height is 2 meters. In the water area, the water level sensor collects water level data every 10 seconds and calculates the water level by ultrasonic reflection time. For example, the current upstream water level is 50.2 meters. The flow rate sensor collects water flow rate data at a frequency of 5 times per second and calculates the water flow rate based on the Doppler frequency shift. For example, the current water flow rate is 2.5 meters / second.
[0085] Step S13: Acquire regional meteorological data corresponding to the surrounding area of the water conservancy project;
[0086] In an embodiment of the present invention, a meteorological monitoring station is set up around a water conservancy project and equipped with anemometers, rain gauges, temperature, and air pressure sensors and other equipment. The anemometer adopts a three-cup anemometer, and the wind speed is calculated by measuring the rotation speed of the wind cup. The wind speed data is recorded every 5 minutes, such as if the current wind speed is 3.5 meters per second. The rain gauge adopts a tipping bucket rain gauge, and the rainfall is measured by counting the number of times the bucket flips. The rainfall data is recorded every 10 minutes, such as if the rainfall in the past 10 minutes is 2 mm. The temperature and air pressure sensors record the temperature and air pressure data every 15 minutes, such as if the current temperature is 25°C and the air pressure is 1200Pa. These meteorological data are summarized to form regional meteorological data corresponding to the surrounding area of the water conservancy project.
[0087] Step S14: obtaining regional topographic data corresponding to the surrounding area of the water conservancy project;
[0088] In an embodiment of the present invention, regional topographic data corresponding to the vicinity of a water conservancy project is obtained by combining satellite remote sensing technology with ground surveying and mapping. Satellite remote sensing images are used to obtain large-scale topographic information, such as the direction of mountains and river distribution. A drone equipped with a high-definition camera is used to take low-altitude photos of key areas around the water conservancy project to obtain more detailed topographic data. At the same time, ground surveying instruments such as total stations and levels are used to conduct field measurements of key topographic features, such as the slope and elevation of the terrain around the dam. The satellite remote sensing data, drone data, and ground surveying data are integrated and processed to generate a digital elevation model (DEM) and digital orthophoto map (DOM) of the area surrounding the water conservancy project, forming comprehensive regional topographic data.
[0089] Step S15: The regional meteorological data and regional topographic data corresponding to the periphery of the water conservancy project, as well as the water conservancy dam stress and strain data, water conservancy dam seepage pressure data, sluice gate opening position data, water level data and water flow rate data are transmitted to the central data processing center corresponding to the water conservancy project through wireless communication technology.
[0090] In an embodiment of the present invention, wireless communication modules are installed at various data collection points (dam body, sluice gate, water area, meteorological monitoring station) and the central data processing center, and 4G communication technology is used for data transmission. At the dam body, the data of the strain sensor and the seepage pressure sensor are packaged through the wireless communication module. Each data packet contains information such as the sensor number, collection time, and data value. The data packet is sent to the central data processing center every 1 minute. At the sluice gate, the data of the position sensor is also packaged and sent every 30 seconds. At the water area, the data of the water level sensor and the flow rate sensor are integrated and sent every 2 minutes. The meteorological monitoring station organizes the collected regional meteorological data into data packets and sends them every 5 minutes. After receiving the data packets, the central data processing center uses a data parsing program to classify and store different types of data in corresponding database tables, such as storing the dam body stress and strain data in the "dam body data" table and the water level data in the "water area data" table, to facilitate subsequent analysis and processing.
[0091] Furthermore, the regional meteorological data in step S13 includes rainfall, temperature, air pressure and wind speed corresponding to the area surrounding the water conservancy project.
[0092] Furthermore, step S2 includes the following steps:
[0093] Step S21: performing time-series synchronization alignment on the water conservancy dam stress and strain data and the water conservancy dam seepage pressure data in the central data processing center according to the time series, so as to obtain the corresponding dam stress and strain data and dam seepage pressure data in the same time series;
[0094] Step S22: obtaining the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body of the water conservancy project through the dam body corresponding to the water conservancy project, and performing dam body physical structure modeling on the dam body corresponding to the water conservancy project based on the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body to generate a dam body physical structure mechanical model corresponding to the water conservancy project;
[0095] Step S23: performing dam displacement analysis on the dam physical structure mechanics model corresponding to the water conservancy project based on the corresponding dam stress and strain data and dam seepage pressure data in the same time sequence to obtain the seepage displacement of the water conservancy dam;
[0096] Step S24: performing sluice gate opening statistics on the sluice gates corresponding to the water conservancy project based on the sluice gate opening position data to obtain the water conservancy sluice gate opening.
[0097] As an embodiment of the present invention, refer to Figure 3 As shown, Figure 1 Detailed step flow diagram of step S2 in the embodiment, step S2 includes the following steps:
[0098] Step S21: performing time-series synchronization alignment on the water conservancy dam stress and strain data and the water conservancy dam seepage pressure data in the central data processing center according to the time series, so as to obtain the corresponding dam stress and strain data and dam seepage pressure data in the same time series;
[0099] In an embodiment of the present invention, the stress and strain data of the hydraulic dam and the seepage pressure data of the hydraulic dam are synchronized in time series using the Python Pandas library in a central data processing center. Assume that the stress and strain data of the dam is stored in a Pandas DataFrame data structure, stress_strain_df, which includes a timestamp column, timestamp, and a stress and strain data column, stress_strain_values; and that the seepage pressure data of the dam is stored in seepage_pressure_df, which includes a timestamp column, timestamp, and a seepage pressure data column, seepage_pressure_values. First, check whether the timestamp formats in the two DataFrames are consistent. If not, convert the timestamps to a unified datetime format using the pd.to_datetime() function. Then, use the pd.merge() function to perform an inner join operation based on the timestamp column to merge the two DataFrames into a new DataFrame, merged_df. For example, merged_df = pd.merge(stress_strain_df, seepage_pressure_df, on='timestamp', how='inner'). In this way, in merged_df, each row of data corresponds to the dam stress-strain data and dam seepage pressure data in the same time series, providing a time-synchronized data basis for subsequent analysis.
[0100] Step S22: obtaining the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body of the water conservancy project through the dam body corresponding to the water conservancy project, and performing dam body physical structure modeling on the dam body corresponding to the water conservancy project based on the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body to generate a dam body physical structure mechanical model corresponding to the water conservancy project;
[0101] In an embodiment of the present invention, the professional finite element analysis software ANSYS is used to model the physical structure of a dam body corresponding to a water conservancy project. Parameters such as the elastic modulus, Poisson's ratio, geometry, and boundary conditions of the dam body are obtained from engineering design documents and geological survey reports. The elastic modulus is determined through laboratory testing of dam body construction materials (such as concrete, soil, and rock). Assume that the elastic modulus of a concrete dam body is 30 GPa. The Poisson's ratio is also obtained through material testing, for example, 0.2. The geometry is determined through field measurements and design drawings. The shape of the dam body is constructed in the form of a three-dimensional model in ANSYS software, including parameters such as the dam body's height, width, and slope. Boundary conditions are determined based on factors such as the contact between the dam body and its foundation and surrounding soil, as well as water pressure. For example, the dam foundation is fixedly constrained, and the water-facing surface of the dam body is subjected to hydrostatic pressure. In ANSYS software, the material properties, geometry, and boundary conditions of the model are set according to the obtained parameters. After preprocessing steps such as meshing, a physical structural mechanical model of the dam body corresponding to the water conservancy project is generated. This model can simulate the mechanical response of the dam body under various working conditions.
[0102] Step S23: performing dam displacement analysis on the dam physical structure mechanics model corresponding to the water conservancy project based on the corresponding dam stress and strain data and dam seepage pressure data in the same time sequence to obtain the seepage displacement of the water conservancy dam;
[0103] In an embodiment of the present invention, the corresponding dam stress and strain data and dam seepage pressure data obtained previously at the same time sequence are input into a previously established physical structure mechanical model of the dam. In ANSYS software, the built-in analysis module is used to use the stress and strain data as the input load of the model and the seepage pressure data as the pore water pressure boundary condition. Finite element calculation is performed to simulate the mechanical behavior of the dam under these loads and boundary conditions. For example, the stress distribution inside the dam is calculated based on the stress and strain data, and the influence of the pore water pressure on the stability of the dam is considered in combination with the seepage pressure data. By analyzing the calculation results, the displacement information of the dam at different positions is extracted, thereby obtaining the seepage displacement of the hydraulic dam. For example, the displacement of a certain point on the dam top at a specific moment is 5 mm and the direction is downward. These displacement data are organized into a table to record the size, direction, and corresponding time and position information of the displacement.
[0104] Step S24: performing sluice gate opening statistics on the sluice gates corresponding to the water conservancy project based on the sluice gate opening position data to obtain the water conservancy sluice gate opening.
[0105] In an embodiment of the present invention, the sluice gate opening position data is processed by using the data analysis function of Python in the central data processing center to calculate the water conservancy sluice opening degree. It is assumed that the sluice gate opening position data is stored in a Pandas DataFrame data structure gate_position_df, which includes a timestamp column timestamp and a sluice gate opening position data column gate_position_values. First, the initial closing position and the maximum opening position of the sluice gate are clarified. For example, the initial closing position is 0 meters and the maximum opening position is 5 meters. For the sluice gate opening position data at each time point, the sluice gate opening percentage is obtained by calculating (current opening position-initial closing position) ÷ (maximum opening position-initial closing position) × 100%. For example, at a certain time point, the sluice gate opening position is 2 meters, then the sluice gate opening degree is (2-0) ÷ (5-0) × 100% = 40%. The calculation results of the sluice gate opening degrees at all time points are organized into a new DataFrame, including the timestamp and the corresponding sluice gate opening data, to facilitate the subsequent analysis of the changing trend of the sluice gate opening degree and the correlation study with other data.
[0106] Furthermore, step S23 includes the following steps:
[0107] Step S231: using a finite element analysis method to divide the dam body physical structure mechanical model corresponding to the water conservancy project into various small units, so as to generate small units of the dam body model corresponding to each water conservancy project;
[0108] In an embodiment of the present invention, the ANSYS software is used to utilize its own meshing function to divide the physical structural mechanical model of the dam body corresponding to the water conservancy project into micro-units, and a suitable meshing algorithm is selected, such as a tetrahedral meshing algorithm for complex geometric shapes. The unit size is set according to the size of the dam body model and the analysis accuracy requirements. For example, for a small earth-rock dam model with a length of 100 meters and a height of 30 meters, the unit size is set to 0.5 meters to ensure the analysis accuracy. Through software operation, the entire dam body model is specified, and the meshing program is started. The software will automatically divide the dam body model into many micro-units to generate micro-units of the dam body model corresponding to each water conservancy project. After the division is completed, the software will generate a mesh information file to record the number, position, shape, and connection relationship of each micro-unit with adjacent units, so as to facilitate subsequent operation and analysis of the units.
[0109] Step S232: Based on the corresponding dam stress and strain data and dam seepage pressure data in the same time sequence, the dam body model micro-units corresponding to each water conservancy project are analyzed for dam body structural characteristics. The corresponding stress and strain distribution in each micro-unit is calculated in combination with the dam body stress and strain data to determine the corresponding weak points and stress concentration areas of the dam body. The corresponding flow path and pressure distribution of the seepage in each micro-unit are analyzed in combination with the dam body seepage pressure data to obtain a dam body structural characteristic parameter set reflecting the dam body stress and seepage pressure.
[0110] In an embodiment of the present invention, by utilizing the analysis module of ANSYS software, the corresponding dam stress and strain data and dam seepage pressure data previously obtained at the same time sequence are loaded onto each micro-unit of the dam model. For stress and strain analysis, the stress and strain data are allocated to the corresponding micro-unit according to the unit position. For example, if a micro-unit is located at the bottom of the dam body near the water-facing surface, the stress value is applied to the unit as a load based on the corresponding value of the position in the overall dam stress and strain data. The stress and strain distribution within each micro-unit is calculated using the finite element algorithm. By analyzing the stress and strain distribution cloud map, the darker areas are stress concentration areas, and the areas with larger unit deformations that exceed the normal range are determined to be weak parts of the dam body. For seepage pressure analysis, the seepage pressure data are applied to the micro-unit as pore water pressure boundary conditions. The software simulates the flow path of seepage in each micro-unit by solving the seepage control equation, calculates the pressure distribution, and organizes information such as stress and strain distribution, weak parts, stress concentration areas, seepage path, and pressure distribution into a data set, that is, a set of dam structural characteristic parameters reflecting the dam stress and seepage pressure is obtained.
[0111] Step S233: Obtaining the temperature change, uneven settlement, surrounding earthquake activity, and surrounding water flow impact corresponding to the dam body;
[0112] In an embodiment of the present invention, various monitoring devices installed around the water conservancy project are used to obtain information on temperature changes, uneven settlement, surrounding seismic activity, and surrounding water flow impact corresponding to the dam body. Multiple temperature sensors are placed inside and on the surface of the dam body, and temperature data is collected every 15 minutes. By analyzing the differences in temperature sensor data at different locations, the temperature changes of the dam body are obtained. For example, in summer, the surface temperature of the dam body can reach 35°C, while the internal temperature is 28°C, with a significant temperature gradient. Levels and total stations are used to regularly measure the elevation changes at different locations of the dam body to monitor uneven settlement. For example, the dam body is measured once every month. If a corner point of the dam body is found to have sunk 5 cm in six months, it is recorded as uneven settlement data. Seismic monitoring stations are set up in the surrounding area, and seismic sensors are used to monitor seismic activity in real time, including information such as the magnitude of the earthquake, the depth of the epicenter, and the distance from the dam body. For example, a magnitude 3.0 earthquake occurred in the surrounding area, with a focal depth of 10 kilometers and a distance of 5 kilometers from the dam body. By installing flow meters and pressure sensors in the waters around the dam, the impact of surrounding water flow is monitored and data such as water flow velocity and impact force are obtained. For example, if the water flow velocity is 3 m / s, the impact force on the dam is 100 kilonewtons.
[0113] Step S234: Based on the dam body structural characteristic parameter set reflecting the dam body stress and seepage pressure, and in combination with the temperature change, uneven settlement, surrounding seismic activity, and surrounding water flow impact corresponding to the dam body, a dam body displacement correlation analysis is performed on the dam body physical structure mechanical model corresponding to the water conservancy project to quantitatively evaluate the influence weight and interaction relationship between various factors on the dam body displacement, including stress and strain, seepage pressure, temperature, settlement, seismic activity, and water flow impact factors, so as to generate an influence matrix of dam body displacement correlation factors;
[0114] In the embodiment of the present application, by using the parametric analysis function in ANSYS software, based on the dam body structure characteristic parameter set corresponding to the stress and seepage pressure of the dam body, and combined with the previously obtained temperature change, uneven settlement, peripheral seismic activity and peripheral water flow impact data corresponding to the dam body, the dam body displacement correlation analysis is performed on the dam body physical structure mechanical model corresponding to the water conservancy project. First, each factor is quantitatively processed, such as converting the temperature change into a temperature load applied to the model, converting the uneven settlement into a node displacement boundary condition, and through multiple simulation calculations, the value of each factor is changed each time, and the change of the dam body displacement is observed, so as to quantitatively evaluate the influence weight of each factor on the dam body displacement, for example, increasing the temperature load by 10℃ alone, the dam top displacement increases by 2mm, and increasing the water flow impact force by 50kN alone, the dam top displacement increases by 3mm, so it can be known that the influence weight of the water flow impact factor on the dam body displacement is relatively large, and at the same time, the change rule of the dam body displacement when different factors change simultaneously is analyzed to determine the interaction relationship between each factor. The influence weight and the interaction relationship are arranged into a two-dimensional matrix to generate a dam body displacement correlation factor influence matrix, and the rows and columns of the matrix correspond to each factor respectively, and the matrix elements represent the influence weight and the interaction strength between the factors.
[0115] Step S235: Based on the influence weight and the interaction relationship of each factor in the dam body displacement correlation factor influence matrix and combined with the principle of structural mechanics, the dam body displacement coupling calculation is performed on the dam body physical structure mechanical model corresponding to the water conservancy project to obtain the seepage displacement of the water conservancy dam body.
[0116] In the embodiment of the present application, based on the influence weight and the interaction relationship of each factor in the dam body displacement correlation factor influence matrix, the dam body displacement coupling calculation is performed on the dam body physical structure mechanical model corresponding to the water conservancy project in the ANSYS software combined with the principle of structural mechanics. In the solution setting of the software, the parameters in the influence matrix are taken as inputs, and a suitable coupling analysis method is selected, such as the sequential coupling method, the influence of stress and strain and seepage pressure on the dam body displacement is calculated first, and then the influence of temperature, uneven settlement, peripheral seismic activity and peripheral water flow impact factors is considered in turn. Through iterative calculation, the displacement of the dam body under the joint action of multiple factors is gradually solved, for example, after 10 times of iterative calculation, the displacement of the dam body at a certain key position under the current working condition is finally obtained as 8mm, and the direction is left. The displacement calculation results of different positions of the dam body are summarized and arranged into a table containing displacement size, direction and corresponding position information to obtain the seepage displacement data of the water conservancy dam body, which provides a key basis for evaluating the running state of the dam body of the water conservancy project.
[0117] Further, step S24 includes the following steps:
[0118] Step S241: establishing an opening position coordinate system for the sluice corresponding to the water conservancy project based on the sluice opening position data to generate a corresponding sluice opening position coordinate system for the water conservancy project;
[0119] In an embodiment of the present invention, by taking the bottom center position of the sluice as the coordinate origin (0, 0), establishing the x-axis along the width direction of the sluice, and stipulating the right as the positive direction; establishing the y-axis along the height direction of the sluice, and stipulating the upward direction as the positive direction, a coordinate system of the opening position of the water conservancy project sluice is constructed, and a total station is used for coordinate measurement. Measurement control points are set at key positions such as the edges on both sides and the bottom of the sluice. The coordinate values of these control points in the coordinate system are measured by the total station to determine the specific position of the coordinate system in the actual sluice structure. For example, a control point A is set 1 meter away from the bottom of the left edge of the sluice, and its coordinates are measured by the total station as (-5, 1). These measurement data are recorded to form complete coordinate system information of the opening position of the water conservancy project sluice, which is used for subsequent accurate description and analysis of the opening position of the sluice.
[0120] Step S242: Obtain corresponding gate types through the sluice gate corresponding to the water conservancy project, including flat gates and radial gates;
[0121] In an embodiment of the present invention, the gate type information corresponding to the sluice gate is obtained by consulting the design drawings of the water conservancy project. The design drawings clearly indicate whether the sluice gate uses a flat gate or a radial gate. If the design drawings are missing, the gate type can be determined by on-site observation of the sluice gate structure. For example, for a small irrigation sluice gate, if its gate is observed to be a rectangular flat plate, raised and lowered by a winch and screw device, it can be determined that the sluice gate is a flat gate. For the sluice gates of some large water conservancy hubs, if the gate is observed to be circular and rotates around a fixed hinge to open and close, it can be determined to be a radial gate. Accurately determining the gate type is a key prerequisite for subsequent targeted parameter analysis and opening calculation.
[0122] Step S243: performing gate opening parameter analysis on the corresponding water conservancy project sluice gate opening position coordinate system based on the gate type, so as to obtain the corresponding screw rotation position of the flat gate through the water conservancy project sluice gate opening position coordinate system, and calculate the opening height of the flat gate corresponding to the opening process based on the screw rotation position to obtain the corresponding gate opening height; and for the radial gate, the corresponding gate opening arc is calculated by measuring the corresponding opening position in the water conservancy project sluice gate opening position coordinate system, and the water flow area of the radial gate corresponding to the opening process is calculated based on the gate opening arc to obtain the corresponding gate opening water flow area size, so as to obtain the water conservancy project gate opening parameters;
[0123] In an embodiment of the present invention, if it is a flat gate, a rotary encoder installed on a screw drive device is used to obtain the screw rotation position information. The rotary encoder is directly connected to the screw and can accurately measure the rotation angle of the screw. For example, the rotary encoder generates 1000 pulse signals per rotation. When the screw rotates a certain angle, the rotary encoder outputs a corresponding number of pulses. By counting the number of pulses, the rotation angle of the screw can be converted to determine the lifting height of the flat gate. Assuming that the rotary encoder outputs 500 pulses, since every 1000 pulses corresponds to one rotation of the screw, that is, the flat gate is lifted by one unit height, then the opening height of the flat gate is 0.5 units. If it is a radial gate, multiple laser rangefinders are arranged in the sluice gate opening position coordinate system to measure the distance between different positions of the radial gate and the fixed reference point during the opening process. Based on these distance data, the opening arc of the gate is calculated in combination with the trigonometric function relationship. For example, if the radius of the radial gate is 5 meters, the laser rangefinder measures that at a certain opening moment, the distance between the gate edge and the fixed reference point is 6 meters. The cosine theorem can be used to calculate the corresponding central angle, and then the opening arc is obtained. According to the opening arc and the radius of the radial gate, the fan area formula is used to calculate the size of the water flow area after the gate is opened. For example, if the opening arc is 0.5 radians and the radius is 5 meters, according to the formula S = 0.5×r²×θ (where r is the radius and θ is the radian), the water flow area is 6.25 square meters, thereby obtaining the opening parameters of the water conservancy project gate.
[0124] Step S244: Obtain the corresponding sluice gate opening flow rate, upstream and downstream water level difference and water flow turbulence correction coefficient during the opening process through the sluice gate corresponding to the water conservancy project, and perform statistical calculation of the sluice gate opening of the water conservancy project based on the corresponding sluice gate opening flow rate, upstream and downstream water level difference and water flow turbulence correction coefficient combined with the water conservancy project gate opening parameters to obtain the water conservancy sluice gate opening.
[0125] In an embodiment of the present invention, ultrasonic level meters are installed upstream and downstream of the sluice to measure the water level difference upstream and downstream of the sluice. The ultrasonic level meter measures the water level by emitting and receiving ultrasonic waves. The water level difference upstream and downstream of the sluice is obtained by subtracting the water level values measured by the two ultrasonic level meters. For example, if the upstream water level is 10.5 meters and the downstream water level is 8.3 meters, the water level difference is 2.2 meters. An electromagnetic flow meter is installed in the flow channel of the sluice to measure the sluice opening flow rate. The electromagnetic flow meter uses the principle of electromagnetic induction to measure the water flow rate. If the measured sluice opening flow rate is 2.5 meters per second, the water flow turbulence correction coefficient is determined according to the type of sluice, water flow conditions and relevant empirical formulas. It is assumed that the water flow turbulence correction coefficient of the sluice is 1.2 through calculation and empirical values. For the flat gate, the water flow area of the gate opening is calculated according to the gate opening height and the width of the sluice. Then, the flow rate calculation formula Q in hydraulics is used in combination with the sluice opening flow rate, the upstream and downstream water level difference and the water flow turbulence correction coefficient. =μ×A×√(2gΔH) (where Q is the flow rate, μ is the water turbulence correction coefficient, A is the water flow area, g is the gravitational acceleration, and ΔH is the water level difference). The sluice gate opening is inverted. For the radial gate, the water flow area calculated previously is directly used. The flow calculation formula is also used in combination with the above parameters to invert the sluice gate opening. Assuming that after calculation, for a certain flat gate sluice gate, the final hydraulic sluice gate opening is 30%, providing key data on sluice gate operation for water conservancy project operation status monitoring.
[0126] Furthermore, step S3 includes the following steps:
[0127] Step S31: spatially registering the regional meteorological data and the regional topographic data to obtain corresponding regional multi-source datasets in the same geographic coordinate system;
[0128] In an embodiment of the present invention, regional meteorological data and regional topographic data are spatially aligned using geographic information system (GIS) software, such as ArcGIS. For regional meteorological data, it is assumed that it is stored in a CSV file containing latitude and longitude, time, and meteorological element values (such as rainfall, temperature, etc.). First, a new geographic database is created in ArcGIS, and the CSV file is imported as a table. The meteorological data is converted into a point feature class based on the latitude and longitude information in the CSV file using the "Add XY Data" tool in ArcGIS. The correct coordinate system, such as the WGS 1984 geographic coordinate system, is set. For regional topographic data, if it is in digital elevation model (DEM) format, the DEM data is directly loaded into ArcGIS to ensure that its coordinate system is consistent with the meteorological data. If not, the coordinate system is converted using the "Project and Transform" tool so that both are in the same geographic coordinate system, thereby obtaining a corresponding regional multi-source dataset in the same geographic coordinate system. For example, the meteorological data points and DEM data of a certain area are both converted to the WGS 1984 geographic coordinate system to facilitate subsequent analysis.
[0129] Step S32: Meteorological and topographical characteristics are analyzed for the corresponding regional multi-source datasets in the same geographic coordinate system by combining physical process simulation to analyze the distribution patterns of rainfall, temperature, air pressure, and wind speed. Furthermore, geomechanics and hydrological principles are combined to analyze the changing trends of terrain elevation, slope, and aspect in the water conservancy project area, including water flow, soil erosion, and groundwater recharge, to obtain physical characteristic analysis results that reflect the inherent laws of meteorology and topography.
[0130] In an embodiment of the present invention, by utilizing ArcGIS's spatial analysis tools and professional meteorological analysis software, such as the WRF (Weather Research and Forecasting) model, meteorological and topographical characteristics are analyzed for regional multi-source datasets corresponding to the same geographic coordinate system. In ArcGIS, the "Kriging Interpolation" tool is used to interpolate meteorological data points, generating continuous meteorological element distribution layers, such as those for rainfall, temperature, air pressure, and wind speed, to analyze their spatial distribution patterns. For example, if interpolation reveals that rainfall in a certain region exhibits a decreasing trend from southeast to northwest, the WRF model can be used to input the region's topographic data and initial meteorological conditions to simulate the evolution of meteorological elements and further verify and refine the distribution patterns. To analyze terrain characteristics, ArcGIS's "surface analysis" tools, such as the "slope" and "aspect" tools, are used to process DEM data to obtain terrain elevation, slope, and aspect data. Based on geomechanics and hydrological principles, the impact of these terrain elements on water flow movement, soil erosion, and groundwater recharge in the water conservancy project area is analyzed. For example, calculations have shown that in areas with larger slopes and a direction toward the river, water flow speeds up and the risk of soil erosion increases, while in low-lying areas, groundwater recharge is more obvious, resulting in physical characteristic analysis results that reflect the inherent laws of meteorology and terrain.
[0131] Step S33: Based on the results of the physical property analysis that reflect the inherent laws of meteorology and topography, a correlation network is constructed between the corresponding regional multi-source datasets in the same geographic coordinate system and the corresponding water areas in the water conservancy project, so as to analyze the correlation strength and influence relationship path between each meteorological element and topographic element and the water area variable, determine the influence relationship between meteorological elements and evaporation, infiltration, and surface runoff, and thus affect the corresponding water level and flow rate of the water area, and study the influence relationship between topography and water flow resistance, confluence path, and water body storage capacity, and thus affect the corresponding water level and flow rate of the water area, so as to use meteorological, topographic, and water area related variables as nodes and the influence relationship between them as edges to obtain a water area-meteorology-topography correlation network;
[0132] In an embodiment of the present invention, by utilizing Python's NetworkX library, based on the analysis results of physical characteristics that reflect the inherent laws of meteorology and terrain, a correlation network is constructed between the corresponding regional multi-source data sets in the same geographic coordinate system and the corresponding water areas in the water conservancy project. The meteorological element distribution layer, terrain element layer and related data of the water area, such as water level and flow rate data, are exported from ArcGIS and organized into a format that can be processed by Python. The meteorological elements (such as rainfall, temperature, air pressure, wind speed), terrain elements (such as terrain elevation, slope, slope direction) and water variables (such as water level and flow rate) are used as nodes. Analyze the results of physical property analysis and determine the influence relationship between each element as an edge. For example, according to meteorological principles, an increase in rainfall will lead to an increase in surface runoff, which in turn affects the water level and flow velocity of the water area. Therefore, establish edges between the rainfall node and the water level and flow velocity nodes in the water area in the network. By studying geological mechanics and hydrological principles, determine the relationship between terrain slope and water flow resistance, and establish edges between terrain slope nodes and water flow resistance nodes. Then, through the relationship between water flow resistance and water flow velocity, establish edges between related nodes. Finally, use variables related to meteorology, terrain, and water areas as nodes, and the influence relationship between them as edges to obtain a water area-meteorology-topography correlation network.
[0133] Step S34: Based on the water area-meteorology-topography correlation network, the water area water level data and the water area flow rate data are mined and analyzed for potential impacts on the water area, so as to mine and analyze the meteorological and topographic factors corresponding to the specific and significant impacts on the water level and flow rate of the water area, including precipitation intensity, wind speed, terrain slope and terrain water system connectivity, and obtain the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project.
[0134] In an embodiment of the present invention, by using the analysis function of the NetworkX library in Python, a water area potential impact mining analysis is performed on water area water level data and water area flow rate data based on the water area-meteorological-topography association network, so as to calculate the influence intensity of each node (meteorological and topographic elements) on the water area water level and flow rate nodes by traversing the association network. For example, for the precipitation intensity node, the weight and number of paths between it and the water area water level and flow rate nodes are analyzed. If there are multiple strong association paths, it indicates that the precipitation intensity has a significant impact on the water area water level and flow rate. For the wind speed node, its association with the water area related nodes is also analyzed. For the terrain slope and terrain water system connectivity nodes, their influence on the water area water level and flow rate is judged based on their connection relationship and influence path in the network. The meteorological and topographic elements with specific and significant impact on the water area water level and flow rate are screened out, such as precipitation intensity, wind speed, terrain slope and terrain water system connectivity, and organized into a data set to obtain the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project, providing key influencing factor data for evaluating the operation status of the water conservancy project.
[0135] Furthermore, step S4 includes the following steps:
[0136] Step S41: obtaining the corresponding dam body seepage displacement rate and dam body cumulative displacement through the hydraulic dam body seepage displacement;
[0137] In an embodiment of the present invention, the seepage displacement of the water conservancy dam body obtained by previous analysis is quantitatively calculated over a period of time, data is collected every 10 minutes, and the data is sent to a data collector in a monitoring center via wired transmission. At the monitoring center, data processing software is used to analyze the collected seepage displacement of the water conservancy dam body. The seepage displacement rate of the dam body is obtained by calculating the ratio of the difference between two adjacent collected data and the time interval. For example, if the displacement of the dam body changes from 100 mm to 102 mm within 10 minutes, the displacement rate is (102-100)÷10=0.2 mm / minute. At the same time, the displacement data collected each time is accumulated to obtain the cumulative displacement of the dam body, and finally the corresponding seepage displacement rate of the dam body and the cumulative displacement of the dam body are obtained.
[0138] Step S42: obtaining the corresponding upstream and downstream water level difference and water flow velocity through the water area of the water conservancy project;
[0139] In an embodiment of the present invention, water level sensors and flow meters are installed upstream and downstream of the water area of the water conservancy project respectively. The water level sensor adopts a pressure water level gauge to measure the water level data every 15 minutes; the flow meter adopts a Doppler flow meter to measure the water flow velocity data every 20 minutes. These devices transmit the data to the server of the monitoring center in real time through the wireless communication module. On the server, a database management system is used to store the collected data. By querying the database for the water level data of the upstream and downstream at the same time, the difference between the two is calculated to obtain the upstream and downstream water level difference. For the water flow velocity data, the average value of the measured values within a certain time period (such as 1 hour) is taken as the water flow velocity of the time period, and finally the corresponding upstream and downstream water level difference and water flow velocity are obtained.
[0140] Step S43: calculating the degree of matching between the sluice gate opening and the corresponding upstream and downstream water level difference and water flow velocity based on the sluice gate opening, so as to obtain the degree of matching between the sluice gate opening and the upstream and downstream water level difference and water flow velocity;
[0141] In an embodiment of the present invention, a special opening matching degree calculation program is run on the server of the monitoring center. The program analyzes the relationship between the water conservancy sluice opening, the upstream and downstream water level difference and the water flow velocity based on the hydraulic principles and the mathematical model established by historical data. The program first divides a plurality of intervals according to the different value ranges of the sluice opening. For each interval, the theoretical optimal matching value is determined in combination with the historical data of the upstream and downstream water level difference and the water flow velocity. Then, the current upstream and downstream water level difference and the water flow velocity are substituted into the model to calculate the actual matching value. By comparing the actual matching value with the theoretical optimal matching value, the relationship between the sluice opening and the upstream and downstream water level difference is finally obtained. The degree of matching between the upstream and downstream water level differences and water flow velocities is presented in the form of a percentage. For example, 100 sets of measurement values of the upstream and downstream water level differences and water flow velocities corresponding to different sluice openings of 10%, 20%, 30%, etc. in the past year were collected. These historical data were processed using the regression analysis method. With the sluice opening as the X variable, the upstream and downstream water level difference as the Y1 variable, and the water flow velocity as the Y2 variable, the regression equations Y1=a1X+b1 and Y2=a2X+b2 were constructed, where a1, b1, a2, and b2 are coefficients obtained through regression calculation. These equations are the theoretical relationship models between the sluice opening and the upstream and downstream water level difference and water flow velocity. To calculate the degree of match between the current sluice gate opening, the upstream and downstream water level difference, and the water flow rate, first obtain the current sluice gate opening value, X0, and substitute it into the above regression equation to obtain the theoretical upstream and downstream water level difference, Y1_theoretical = a1X0 + b1, and the theoretical water flow rate, Y2_theoretical = a2X0 + b2. Simultaneously, obtain the current actual upstream and downstream water level difference, Y1_actual, and water flow rate, Y2_actual, from the real-time monitoring system. To determine the degree of match between the upstream and downstream water level difference, calculate |Y1_actual - Y1_theoretical| ÷ Y1_theoretical × 100% to obtain the percentage deviation of the upstream and downstream water level difference. For example, if Y1_theoretical is 5 meters and Y1_actual is 5.2 meters, the percentage deviation of the upstream and downstream water level difference is |5.2 - 5| ÷ 5 × 100% = 4%.For the degree of matching of water flow velocity, similarly calculate |Y2_actual - Y2_theoretical| ÷ Y2_theoretical × 100% to obtain the deviation percentage of water flow velocity. For example, if Y2_theoretical is 3 m / s and Y2_actual is 3.1 m / s, the deviation percentage of water flow velocity is |3.1-3| ÷ 3 × 100% ≈ 3.33%. Taking into account the deviation percentage of upstream and downstream water level difference and water flow velocity, the overall matching degree is calculated by weighted average. Assuming that the weight of upstream and downstream water level difference is 0.6 and the weight of water flow velocity is 0.4, the overall matching degree = deviation percentage of upstream and downstream water level difference × 0.6 + deviation percentage of water flow velocity × 0.4. Taking the above data as an example, the overall matching degree = 4% × 0.6 + 3.33% × 0.4 ≈ 3.73%, and finally the matching degree between the sluice opening and the upstream and downstream water level difference and the water flow velocity is obtained by taking 1-the overall matching degree, that is, 1-3.73%=96.27%, and finally the matching degree between the sluice opening and the upstream and downstream water level difference and the water flow velocity is obtained.
[0142] Step S44: assigning corresponding water conservancy impact weights to the dam body seepage displacement rate, dam body cumulative displacement, and the degree of matching between the sluice gate opening and the upstream and downstream water level difference and water flow velocity, and combining the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project to quantitatively calculate the water conservancy operation risk of the operating facilities corresponding to the water conservancy project, to obtain a water conservancy project operation risk score;
[0143] In an embodiment of the present invention, the hydraulic impact weights of the dam body seepage displacement rate, the dam body cumulative displacement, and the degree of matching between the sluice gate opening and the upstream and downstream water level difference and the water flow velocity are pre-set on the server to 0.3, 0.2, and 0.5, respectively. At the same time, combined with the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project, the meteorological potential factors are obtained in real time through the meteorological station, including information such as precipitation intensity and wind speed; the topographic potential factors are determined based on preliminary geological exploration data, such as terrain slope and terrain water system connectivity. The meteorological potential factors and topographic potential factors are converted into quantitative scores, and the weighted summation method is used to quantitatively calculate the water conservancy operation risk, that is, the water conservancy project operation risk score = dam body seepage displacement rate × 0.3 + dam body cumulative displacement × 0.2 + matching degree × 0.5 + meteorological potential factor score + topographic potential factor score, and finally the water conservancy project operation risk score is obtained.
[0144] Step S45: performing emergency early warning control on the operating facilities corresponding to the water conservancy project according to the water conservancy project operation risk score, so as to generate an emergency control plan for the operation status corresponding to the water conservancy project.
[0145] In an embodiment of the present invention, by setting a preset operation risk threshold of 80 points on the server, the server compares the calculated water conservancy project operation risk score with the preset operation risk threshold at a certain time interval (such as every hour). If the water conservancy project operation risk score is less than 80 points, the server continues to receive and process data from various sensors, and continuously monitors the operation facilities corresponding to the water conservancy project. If the water conservancy project operation risk score is greater than or equal to 80 points, the server automatically triggers the early warning mechanism, sends an early warning signal to the water conservancy project management personnel through the SMS platform, and calls a pre-written emergency plan generation program at the same time. The program generates corresponding plans for adjusting the sluice opening, controlling the water level of the reservoir water area, and reducing the corresponding displacement pressure of the dam body according to the specific situation of the risk, combined with the hydraulic model and historical cases, to form an emergency control plan for the operation status corresponding to the water conservancy project.
[0146] Furthermore, the emergency early warning control of the operating facilities corresponding to the water conservancy project based on the water conservancy project operation risk score described in step S45 includes comparing and judging the water conservancy project operation risk score based on a preset operation risk threshold. If the water conservancy project operation risk score is less than the preset operation risk threshold, the operating facilities corresponding to the water conservancy project continue to be monitored; if the water conservancy project operation risk score is greater than or equal to the preset operation risk threshold, the operating facilities automatically start the early warning mechanism to send an early warning signal to the water conservancy project management personnel, and respond to generate corresponding adjustments to the sluice opening, control the water level of the reservoir water area, and reduce the corresponding displacement pressure of the dam body, so as to generate an emergency control plan for the operation status corresponding to the water conservancy project.
[0147] Furthermore, the present invention also provides a water conservancy project operation status monitoring system for executing the water conservancy project operation status monitoring method described above, the water conservancy project operation status monitoring system comprising:
[0148] The water conservancy project data acquisition module is used to monitor the corresponding water conservancy dam body stress and strain data, water conservancy dam body seepage pressure data, water gate opening position data, water level data and water flow rate data in real time at the dam body, water gate and water area corresponding to the water conservancy project; obtain regional meteorological data and regional topographic data corresponding to the water conservancy project, and transmit them together with the water conservancy dam body stress and strain data, water conservancy dam body seepage pressure data, water gate opening position data, water level data and water flow rate data to the central data processing center corresponding to the water conservancy project;
[0149] The dam displacement and opening statistics module is used to analyze the dam displacement of the corresponding dam of the water conservancy project based on the stress and strain data of the dam body and the seepage pressure data of the dam body in the central data processing center to obtain the seepage displacement of the dam body; and to perform sluice opening statistics on the corresponding sluice of the water conservancy project based on the sluice opening position data to obtain the sluice opening of the water conservancy project;
[0150] The water area potential impact mining module is used to mine and analyze the water area potential impact of water level data and water area flow rate data based on regional meteorological data and regional topographic data, so as to obtain the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project;
[0151] The water conservancy project emergency warning module is used to monitor the water conservancy operation risk of the operating facilities corresponding to the water conservancy project based on the seepage displacement of the water conservancy dam body and the opening of the water conservancy sluice, combined with the meteorological potential factors and terrain potential factors corresponding to the water area of the water conservancy project, to obtain the water conservancy project operation risk score; according to the water conservancy project operation risk score, the operating facilities corresponding to the water conservancy project are emergency warned and controlled to generate the corresponding operation status emergency control plan of the water conservancy project.
[0152] The present invention is therefore intended to be illustrative and non-restrictive in all respects, with the scope of the invention being defined by the appended claims rather than the foregoing description, and all changes that come within the meaning and range of equivalents of the application documents are intended to be embraced therein.
[0153] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is to be construed in the widest possible manner consistent with the principles and novel features disclosed herein.
Claims
1. A method for monitoring the operation status of a water conservancy project, characterized in that: The following steps are involved: Step S1: real-time monitoring of corresponding dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data at the dam, sluice, and water area of the water conservancy project; obtaining regional meteorological data and regional topographic data corresponding to the surrounding area of the water conservancy project, and transmitting the data together with the dam stress and strain data, dam seepage pressure data, sluice opening position data, water level data, and water flow velocity data to a central data processing center corresponding to the water conservancy project; Step S2: performing dam displacement analysis on the dam body corresponding to the water conservancy project based on the water conservancy dam body stress and strain data and the water conservancy dam body seepage pressure data in the central data processing center to obtain the water conservancy dam body seepage displacement; performing water gate opening statistics on the water conservancy project corresponding to the water conservancy project based on the water gate opening position data to obtain the water conservancy water gate opening; wherein step S2 includes the following steps: Step S21: performing time-series synchronization alignment on the water conservancy dam stress and strain data and the water conservancy dam seepage pressure data in the central data processing center according to the time series, so as to obtain the corresponding dam stress and strain data and dam seepage pressure data in the same time series; Step S22: obtaining the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body of the water conservancy project through the dam body corresponding to the water conservancy project, and performing dam body physical structure modeling on the dam body corresponding to the water conservancy project based on the elastic modulus, Poisson's ratio, geometric shape, and boundary conditions corresponding to the dam body to generate a dam body physical structure mechanical model corresponding to the water conservancy project; Step S23: performing dam displacement analysis on the dam physical structure mechanics model corresponding to the water conservancy project based on the corresponding dam stress and strain data and dam seepage pressure data in the same time sequence to obtain the seepage displacement of the water conservancy dam; Step S24: performing sluice gate opening statistics on the sluice gates corresponding to the water conservancy project based on the sluice gate opening position data to obtain the water conservancy sluice gate opening; Step S3: Based on the regional meteorological data and the regional topographic data, the water level data and the water velocity data are analyzed for potential impacts on the water area to obtain meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project; Step S4: Based on the seepage displacement of the water conservancy dam body and the opening of the water conservancy sluice, and in combination with the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project, the water conservancy operation risk of the operating facilities corresponding to the water conservancy project is monitored to obtain a water conservancy project operation risk score; based on the water conservancy project operation risk score, emergency early warning control is performed on the operating facilities corresponding to the water conservancy project to generate an emergency control plan for the operation status of the water conservancy project.
2. The method for monitoring the operation status of a water conservancy project according to claim 1, characterized in that: Step S1 includes the following steps: Step S11: installing corresponding strain sensors and seepage pressure sensors at the dam body corresponding to the water conservancy project, installing corresponding position sensors at the sluice gate corresponding to the water conservancy project, and installing corresponding water level sensors and flow rate sensors at the water area corresponding to the water conservancy project; Step S12: using a strain sensor and a seepage pressure sensor at the dam body corresponding to the water conservancy project to monitor the corresponding stress and strain data of the water conservancy dam body and the seepage pressure data of the water conservancy dam body in real time, and using a position sensor at the sluice gate corresponding to the water conservancy project to monitor the corresponding sluice opening position data in real time, and using a water level sensor and a flow rate sensor at the water area corresponding to the water conservancy project to monitor the corresponding water level data and water area flow rate data in real time; Step S13: Acquire regional meteorological data corresponding to the surrounding area of the water conservancy project; Step S14: obtaining regional topographic data corresponding to the surrounding area of the water conservancy project; Step S15: The regional meteorological data and regional topographic data corresponding to the periphery of the water conservancy project, as well as the water conservancy dam stress and strain data, water conservancy dam seepage pressure data, sluice gate opening position data, water level data and water flow rate data are transmitted to the central data processing center corresponding to the water conservancy project through wireless communication technology.
3. The method for monitoring the operation status of a water conservancy project according to claim 2, wherein: The regional meteorological data in step S13 includes rainfall, temperature, air pressure and wind speed corresponding to the area surrounding the water conservancy project.
4. The method for monitoring the operation status of a water conservancy project according to claim 1, wherein: Step S23 includes the following steps: Step S231: using a finite element analysis method to divide the dam body physical structure mechanical model corresponding to the water conservancy project into various small units, so as to generate small units of the dam body model corresponding to each water conservancy project; Step S232: Based on the corresponding dam stress and strain data and dam seepage pressure data in the same time sequence, the dam body model micro-units corresponding to each water conservancy project are analyzed for dam body structural characteristics. The corresponding stress and strain distribution in each micro-unit is calculated in combination with the dam body stress and strain data to determine the corresponding weak points and stress concentration areas of the dam body. The corresponding flow path and pressure distribution of the seepage in each micro-unit are analyzed in combination with the dam body seepage pressure data to obtain a dam body structural characteristic parameter set reflecting the dam body stress and seepage pressure. Step S233: Obtaining the temperature change, uneven settlement, surrounding earthquake activity, and surrounding water flow impact corresponding to the dam body; Step S234: Based on the dam body structural characteristic parameter set reflecting the dam body stress and seepage pressure, and in combination with the temperature change, uneven settlement, surrounding seismic activity, and surrounding water flow impact corresponding to the dam body, a dam body displacement correlation analysis is performed on the dam body physical structure mechanical model corresponding to the water conservancy project to quantitatively evaluate the influence weight and interaction relationship between various factors on the dam body displacement, including stress and strain, seepage pressure, temperature, settlement, seismic activity, and water flow impact factors, so as to generate an influence matrix of dam body displacement correlation factors; Step S235: Based on the influence weights and interaction relationships of the factors in the dam displacement correlation factor influence matrix and in combination with the principles of structural mechanics, a dam displacement coupling calculation is performed on the dam physical structure mechanics model corresponding to the water conservancy project to obtain the seepage displacement of the water conservancy dam.
5. The method for monitoring the operation status of a water conservancy project according to claim 1, wherein: Step S24 includes the following steps: Step S241: establishing an opening position coordinate system for the sluice corresponding to the water conservancy project based on the sluice opening position data to generate a corresponding sluice opening position coordinate system for the water conservancy project; Step S242: Obtain corresponding gate types through the sluice gate corresponding to the water conservancy project, including flat gates and radial gates; Step S243: performing gate opening parameter analysis on the corresponding water conservancy project sluice gate opening position coordinate system based on the gate type, so as to obtain the corresponding screw rotation position of the flat gate through the water conservancy project sluice gate opening position coordinate system, and calculate the opening height of the flat gate corresponding to the opening process based on the screw rotation position to obtain the corresponding gate opening height; and for the radial gate, the corresponding gate opening arc is calculated by measuring the corresponding opening position in the water conservancy project sluice gate opening position coordinate system, and the water flow area of the radial gate corresponding to the opening process is calculated based on the gate opening arc to obtain the corresponding gate opening water flow area size, so as to obtain the water conservancy project gate opening parameters; Step S244: Obtain the corresponding sluice gate opening flow rate, upstream and downstream water level difference and water flow turbulence correction coefficient during the opening process through the sluice gate corresponding to the water conservancy project, and perform statistical calculation of the sluice gate opening of the water conservancy project based on the corresponding sluice gate opening flow rate, upstream and downstream water level difference and water flow turbulence correction coefficient combined with the water conservancy project gate opening parameters to obtain the water conservancy sluice gate opening.
6. The method for monitoring the operation status of a water conservancy project according to claim 1, characterized in that: Step S3 includes the following steps: Step S31: spatially registering regional meteorological data and regional topographic data to obtain corresponding regional multi-source datasets in the same geographic coordinate system; Step S32: Meteorological and topographical characteristics are analyzed for the corresponding regional multi-source datasets in the same geographic coordinate system by combining physical process simulation to analyze the distribution patterns of rainfall, temperature, air pressure, and wind speed. Furthermore, geomechanics and hydrological principles are combined to analyze the changing trends of terrain elevation, slope, and aspect in the water conservancy project area, including water flow, soil erosion, and groundwater recharge, to obtain physical characteristic analysis results that reflect the inherent laws of meteorology and topography. Step S33: Based on the results of the physical property analysis that reflect the inherent laws of meteorology and topography, a correlation network is constructed between the corresponding regional multi-source datasets in the same geographic coordinate system and the corresponding water areas in the water conservancy project, so as to analyze the correlation strength and influence relationship path between each meteorological element and topographic element and the water area variable, determine the influence relationship between meteorological elements and evaporation, infiltration, and surface runoff, and thus affect the corresponding water level and flow rate of the water area, and study the influence relationship between topography and water flow resistance, confluence path, and water body storage capacity, and thus affect the corresponding water level and flow rate of the water area, so as to use meteorological, topographic, and water area related variables as nodes and the influence relationship between them as edges to obtain a water area-meteorology-topography correlation network; Step S34: Based on the water area-meteorology-topography correlation network, the water area water level data and the water area flow rate data are mined and analyzed for potential impacts on the water area, so as to mine and analyze the meteorological and topographic factors corresponding to the specific and significant impacts on the water level and flow rate of the water area, including precipitation intensity, wind speed, terrain slope and terrain water system connectivity, and obtain the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project.
7. The method for monitoring the operation status of a water conservancy project according to claim 1, characterized in that: Step S4 includes the following steps: Step S41: obtaining the corresponding dam body seepage displacement rate and dam body cumulative displacement through the hydraulic dam body seepage displacement; Step S42: obtaining the corresponding upstream and downstream water level difference and water flow velocity through the water area of the water conservancy project; Step S43: calculating the degree of matching between the sluice gate opening and the corresponding upstream and downstream water level difference and water flow velocity based on the sluice gate opening, so as to obtain the degree of matching between the sluice gate opening and the upstream and downstream water level difference and water flow velocity; Step S44: assigning corresponding water conservancy impact weights to the dam body seepage displacement rate, dam body cumulative displacement, and the degree of matching between the sluice gate opening and the upstream and downstream water level difference and water flow velocity, and combining the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project to quantitatively calculate the water conservancy operation risk of the operating facilities corresponding to the water conservancy project, to obtain a water conservancy project operation risk score; Step S45: performing emergency early warning control on the operating facilities corresponding to the water conservancy project according to the water conservancy project operation risk score, so as to generate an emergency control plan for the operation status corresponding to the water conservancy project.
8. The method for monitoring the operation status of a water conservancy project according to claim 7, characterized in that: The emergency early warning control of the operating facilities corresponding to the water conservancy project based on the water conservancy project operation risk score described in step S45 includes comparing and judging the water conservancy project operation risk score based on a preset operation risk threshold. If the water conservancy project operation risk score is less than the preset operation risk threshold, the operating facilities corresponding to the water conservancy project continue to be monitored; if the water conservancy project operation risk score is greater than or equal to the preset operation risk threshold, the operating facilities automatically start the early warning mechanism to send an early warning signal to the water conservancy project management personnel, and respond to generate corresponding adjustments to the sluice opening, control the water level of the reservoir water area, and reduce the corresponding displacement pressure of the dam body, so as to generate an emergency control plan for the operation status corresponding to the water conservancy project.
9. A water conservancy project operation status monitoring system, characterized in that: For executing the water conservancy project operation status monitoring method according to claim 1, the water conservancy project operation status monitoring system comprises: The water conservancy project data acquisition module is used to monitor the corresponding water conservancy dam body stress and strain data, water conservancy dam body seepage pressure data, water gate opening position data, water level data and water flow rate data in real time at the dam body, water gate and water area corresponding to the water conservancy project; obtain regional meteorological data and regional topographic data corresponding to the water conservancy project, and transmit them together with the water conservancy dam body stress and strain data, water conservancy dam body seepage pressure data, water gate opening position data, water level data and water flow rate data to the central data processing center corresponding to the water conservancy project; The dam displacement and opening statistics module is used to analyze the dam displacement of the corresponding dam of the water conservancy project based on the stress and strain data of the dam body and the seepage pressure data of the dam body in the central data processing center to obtain the seepage displacement of the dam body; and to perform sluice opening statistics on the corresponding sluice of the water conservancy project based on the sluice opening position data to obtain the sluice opening of the water conservancy project; The water area potential impact mining module is used to mine and analyze the water area potential impact of water level data and water area flow rate data based on regional meteorological data and regional topographic data, so as to obtain the meteorological potential factors and topographic potential factors corresponding to the water area of the water conservancy project; The water conservancy project emergency warning module is used to monitor the water conservancy operation risk of the operating facilities corresponding to the water conservancy project based on the seepage displacement of the water conservancy dam body and the opening of the water conservancy sluice, combined with the meteorological potential factors and terrain potential factors corresponding to the water area of the water conservancy project, to obtain the water conservancy project operation risk score; according to the water conservancy project operation risk score, the operating facilities corresponding to the water conservancy project are emergency warned and controlled to generate the corresponding operation status emergency control plan of the water conservancy project.
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