Dynamic evolution analysis method for underground coal mine underground water system

Abstract

The invention discloses a dynamic evolution analysis method for an underground coal mine underground water system, and belongs to the field of underground water systems. An underground coal mine underground water system dynamic evolution analysis method comprises the following steps: S1, establishing a three-dimensional underground water system dynamic model; s2, monitoring underground water system characterization data and underground coal mine area environment characterization data in real time; s3, dynamic parameters of the underground water system are obtained; s4, obtaining a dynamic evolution comprehensive evaluation diagram of the underground water system; and S5, obtaining a dynamic evolution analysis result of the water system. According to the method, the problem that early warning measures cannot be made according to the dynamic evolution of the underground water because the dynamic evolution of the underground water cannot be analyzed according to the monitored underground water condition in an existing patent is solved, and a deeper feature analysis basis is provided for dynamic evolution comprehensive evaluation graph processing and target identification; therefore, the dynamic evolution analysis of the underground water system is more comprehensive and accurate, and corresponding early warning can be made according to the analysis result.

Description

Technical Field

[0001] The present invention relates to the technical field of groundwater systems, in particular to a method for analyzing the dynamic evolution of groundwater systems in underground coal mines. Background Art

[0002] Coal mining is a large-scale engineering activity that requires the discharge of large quantities of groundwater to ensure safety within the mine. This inevitably leads to a drop in the groundwater level. This drop in groundwater levels can cause a drop in nearby surface water levels, leading to a reduction in surface water resources such as farmland and lakes, and severely impacting the groundwater systems of surrounding underground coal mines.

[0003] The Chinese patent with publication number CN113818929A discloses a mine groundwater dynamic monitoring system, control method and application. The monitoring computer is connected to the intelligent water level telemeter through a remote communication adapter. The intelligent water level telemeter is installed in a field hydrological observation hole. Through the research and application of comprehensive mine water hazard prevention and control technology, a mine water chemistry laboratory and an automatic real-time monitoring system for water conditions above and below the well are established, forming a rapid water inrush source identification system and a key prevention and control technology system suitable for the characteristics of water hazards in mining areas. Timely mine water inrush prediction and early warning are carried out, which not only has important guiding significance for mine water prevention and control work, but also ensures the safe production and construction of mines; it also provides a reference for the water prevention and control work of mines with similar hydrogeological conditions in the surrounding areas, completes the coal mine water inrush hazard assessment and control technology system construction, forms a mine water source rapid identification, mine groundwater dynamic monitoring system and emergency mechanism linkage system, and improves the comprehensive mine water prevention and control management system.

[0004] The above patent can only monitor groundwater during actual use, but cannot analyze the dynamic evolution of groundwater based on the monitored groundwater conditions, resulting in the inability to formulate early warning measures based on the dynamic evolution of groundwater; therefore, it does not meet existing needs. Therefore, a dynamic evolution analysis method for underground coal mine groundwater systems is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for analyzing the dynamic evolution of groundwater systems in underground coal mines, so that the dynamic evolution analysis of groundwater systems is more comprehensive. By fusing the time-series frame images of the groundwater system into dynamic multi-dimensional plane images, more complete and continuous target information is provided, more accurate input data is provided for topological manifold deformation analysis, and a deeper feature analysis basis is provided for dynamic evolution comprehensive evaluation map processing and target identification, so that the dynamic evolution analysis of the groundwater system is more accurate, and corresponding warnings can be made according to the analysis results, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a method for analyzing the dynamic evolution of underground water systems in underground coal mines, comprising the following steps:

[0007] S1: Obtain historical groundwater system characterization data of underground coal mines and environmental characterization data of underground coal mine areas, and establish a three-dimensional groundwater system dynamic model based on the groundwater system characterization data and environmental characterization data;

[0008] S2: Groundwater monitoring points are deployed in the underground coal mining area to monitor the groundwater system characterization data in the underground coal mining area in real time, and collect real-time characterization data of the underground coal mining area;

[0009] S3: inputting the real-time monitored groundwater system characterization data and the real-time collected environmental characterization data into the three-dimensional groundwater system dynamic model to obtain the groundwater system dynamic parameters;

[0010] S4: input the groundwater system dynamic parameters into the three-dimensional groundwater system dynamic model to obtain the dynamic evolution comprehensive evaluation diagram of the groundwater system;

[0011] S5: The dynamic evolution analysis results of the water system are obtained based on the comprehensive evaluation diagram of the dynamic evolution of the groundwater system.

[0012] Preferably, the environmental characterization data include unit water inflow of the mine, land damage area, solid waste accumulation, goaf collapse elevation, goaf collapse slope, coal resource reserve-to-production ratio, ground collapse rate, wastewater recycling rate, and real-time meteorological data; the groundwater system characterization data include: groundwater level data, annual rainfall, distance from the surface water system, groundwater dynamic parameters, net recharge, aquifer medium and aquifer permeability coefficient.

[0013] Preferably, the establishing of a three-dimensional groundwater system dynamic model based on the groundwater system characterization data and the environmental characterization data specifically includes:

[0014] A three-dimensional grid was established and the Kriging interpolation method was used to interpolate the surface elevation, the floor of the phreatic aquifer, and the roof and bottom elevations of the confined aquifer in the study area. The grid was then divided according to the area of ​​the underground coal mine.

[0015] The historical groundwater system characterization data and the underground coal mining area environmental characterization data are assigned to the three-dimensional grid, and then on the three-dimensional grid;

[0016] Run the Modflow model to obtain a three-dimensional groundwater system dynamic model.

[0017] Preferably, the step of inputting the real-time monitored groundwater system characterization data and the real-time collected environmental characterization data into the three-dimensional groundwater system dynamic model to obtain the groundwater system dynamic parameters specifically includes:

[0018] Establish a groundwater system numerical model, set the time range, spatial range and calculation grid of the groundwater system flow, as well as the source and sink items and boundary conditions in the groundwater system numerical model;

[0019] According to the real-time monitored groundwater system dynamics and groundwater level dynamics data, the corresponding parameters are set in the groundwater system numerical model;

[0020] Run the groundwater system numerical model according to the water flow time range, spatial range and calculation grid of the groundwater system, various source and sink items and boundary conditions, and the corresponding parameters set in the groundwater system numerical model;

[0021] The groundwater system numerical model simulates the evolution of the groundwater system flow field and obtains the dynamic parameters of the groundwater system in the underground coal mining area.

[0022] Preferably, the corresponding parameters include the spatial range and time sequence of the underground coal mining area, the speed and height of coal mining, and the groundwater level drop data caused by coal mining. The dynamic parameters of the groundwater system include water level distribution, water flow velocity and water inflow.

[0023] Preferably, obtaining a comprehensive evaluation diagram of the dynamic evolution of the groundwater system specifically includes:

[0024] The groundwater system dynamic parameters are classified through the classification module, and the classified index parameters are quantified and mapped to obtain the single factor normalized thematic contour map corresponding to each characterization index;

[0025] The state variable weight vector function is used to calculate the corresponding dynamic weighted weight of each characterization index, according to the corresponding dynamic weighted weight of each characterization index;

[0026] The normalized thematic contour maps of each single factor are compositely superimposed to obtain a comprehensive evaluation map of the dynamic evolution of the groundwater system.

[0027] Preferably, the classification module includes:

[0028] An indicator grading module is used to determine the corresponding grade of each characterization data according to the indicator type and the preset indicator evaluation grading threshold of the parameters of the groundwater system dynamic parameters;

[0029] An indicator quantification module is used to determine the indicator parameters corresponding to each characterization indicator based on each characterization data, the corresponding level, and the maximum and minimum value normalization model; the maximum and minimum value normalization model is determined based on the measured characterization indicator, the corresponding level of the measured characterization indicator, and the corresponding indicator parameters;

[0030] The quantitative drawing module is used to perform quantitative drawing based on the parameters of each indicator to obtain the single-factor normalized thematic contour map corresponding to each characterization indicator.

[0031] Preferably, the workflow of the classification module specifically includes:

[0032] The indicator data in the groundwater system dynamic parameters are divided according to the indicator field and data attributes, and the indicator types and corresponding characterization indicators of the underground coal mine groundwater system are obtained;

[0033] Construct preset indicator evaluation grading thresholds according to the standard grading method, and determine the corresponding level of each characterization indicator according to the indicator type and the preset indicator evaluation grading thresholds;

[0034] Determine the indicator parameters corresponding to each characterization indicator based on the normalization model of each characterization indicator and the corresponding level and maximum and minimum values;

[0035] Quantitative drawing is performed based on the parameters of each indicator to obtain the single-factor normalized thematic contour map corresponding to each characterization indicator.

[0036] Preferably, the dynamic evolution analysis results of the water system are obtained based on the dynamic evolution comprehensive evaluation diagram of the groundwater system, specifically including:

[0037] Extract spatial positioning features from the feature bounding box sequence of the dynamic evolution comprehensive evaluation graph to generate spatial positioning parameters;

[0038] Performing dynamic evolution analysis on the feature bounding box sequence according to the spatial positioning parameters to generate dynamic evolution data;

[0039] Extracting time series frame images from the groundwater system dynamic evolution comprehensive evaluation map based on dynamic evolution data to generate a groundwater system time series frame image;

[0040] Perform frame plane fracture processing on the time-series frame images of the groundwater system to generate dynamic multi-dimensional plane images;

[0041] The topological manifold deformation analysis is performed on the dynamic multi-dimensional plane image to obtain the dynamic evolution analysis results of the groundwater system.

[0042] Preferably, the topological manifold deformation analysis of the dynamic multi-dimensional plane image is performed to obtain the dynamic evolution analysis results of the groundwater system, specifically including:

[0043] Perform topological time dimension analysis on dynamic multi-dimensional plane images and construct a manifold evolution time sequence diagram;

[0044] Performing topological object recognition on the manifold evolution time series diagram to generate topological feature objects, which include water level distribution features, water flow velocity features, and water inflow features;

[0045] The manifold curvature change of the topological feature object is calculated using the manifold evolution time sequence diagram to generate the manifold curvature data of the topological object;

[0046] Based on the manifold curvature data of the topological object, the manifold evolution time series graph is subjected to manifold homology analysis to generate homology eigenvectors;

[0047] The topological manifold deformation analysis of the dynamic multi-dimensional plane image is performed based on the homological eigenvectors, and the dynamic evolution analysis results of the groundwater system are obtained.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] The present invention makes the dynamic evolution analysis of the groundwater system more comprehensive and integrated by establishing a groundwater numerical model, setting parameters, operating the model, and evaluating the impact of water gushing. By fusing the time-series frame images of the groundwater system into a dynamic multi-dimensional plane image, more complete and continuous target information is provided, providing more accurate input data for topological manifold deformation analysis, and a more in-depth feature analysis basis for dynamic evolution comprehensive evaluation map processing and target identification, making the dynamic evolution analysis of the groundwater system more accurate, and thus enabling corresponding early warnings to be made based on the analysis results. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a flow chart of the method for analyzing the dynamic evolution of underground water systems in underground coal mines according to the present invention;

[0051] Figure 2 This is a dynamic evolution analysis diagram of the underground coal mine groundwater system dynamic evolution analysis method of the present invention. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] In order to solve the problem that the existing patent can only monitor groundwater during actual use, but cannot analyze the dynamic evolution of groundwater based on the monitored groundwater conditions, resulting in the inability to formulate early warning measures based on the dynamic evolution of groundwater, please refer to Figure 1-Figure 2 , this embodiment provides the following technical solutions:

[0054] The method for analyzing the dynamic evolution of underground water systems in underground coal mines includes the following steps:

[0055] S1: Obtain historical groundwater system characterization data of underground coal mines and environmental characterization data of underground coal mine areas, and establish a three-dimensional groundwater system dynamic model based on the groundwater system characterization data and environmental characterization data;

[0056] S2: Groundwater monitoring points are deployed in the underground coal mining area to monitor the groundwater system characterization data in the underground coal mining area in real time, and collect real-time characterization data of the underground coal mining area;

[0057] S3: inputting the real-time monitored groundwater system characterization data and the real-time collected environmental characterization data into the three-dimensional groundwater system dynamic model to obtain the groundwater system dynamic parameters;

[0058] S4: input the groundwater system dynamic parameters into the three-dimensional groundwater system dynamic model to obtain the dynamic evolution comprehensive evaluation diagram of the groundwater system;

[0059] S5: The dynamic evolution analysis results of the water system are obtained based on the comprehensive evaluation diagram of the dynamic evolution of the groundwater system.

[0060] Environmental characterization data include unit water inflow of mines, land damage area, solid waste accumulation, goaf collapse elevation, goaf collapse slope, coal resource reserve-to-production ratio, ground collapse rate, wastewater recycling rate, and real-time meteorological data. Groundwater system characterization data include: groundwater level data, annual rainfall, distance from surface water system, groundwater dynamic parameters, net recharge, aquifer medium and aquifer permeability coefficient.

[0061] A three-dimensional groundwater system dynamic model is established based on groundwater system characterization data and environmental characterization data, including:

[0062] A three-dimensional grid was established and the Kriging interpolation method was used to interpolate the surface elevation, the floor of the phreatic aquifer, and the roof and bottom elevations of the confined aquifer in the study area. The grid was then divided according to the area of ​​the underground coal mine.

[0063] The historical groundwater system characterization data and the underground coal mining area environmental characterization data are assigned to the three-dimensional grid, and then on the three-dimensional grid;

[0064] Running the Modflow model yields a three-dimensional groundwater system dynamic model. By accurately dividing the underground coal mine into grids and establishing a three-dimensional groundwater system dynamic model, the dynamic evolution of the groundwater system can be better analyzed.

[0065] Inputting the real-time monitored groundwater system characterization data and the real-time collected environmental characterization data into the three-dimensional groundwater system dynamic model to obtain the groundwater system dynamic parameters, including:

[0066] Establish a groundwater system numerical model, set the time range, spatial range and calculation grid of the groundwater system flow, as well as the source and sink items and boundary conditions in the groundwater system numerical model;

[0067] According to the real-time monitored groundwater system dynamics and groundwater level dynamics data, the corresponding parameters are set in the groundwater system numerical model;

[0068] Run the groundwater system numerical model according to the water flow time range, spatial range and calculation grid of the groundwater system, various source and sink items and boundary conditions, and the corresponding parameters set in the groundwater system numerical model;

[0069] The groundwater system numerical model simulates the evolution of the groundwater system flow field and obtains the dynamic parameters of the groundwater system in the underground coal mining area.

[0070] The corresponding parameters include the spatial extent and temporal sequence of the underground coal mining area, the speed and height of coal mining, and the groundwater level drop data caused by coal mining. The dynamic parameters of the groundwater system include water level distribution, water flow velocity and water inflow.

[0071] Specifically, corresponding parameters are set in a pre-established groundwater numerical model; then, based on the time range, spatial range and calculation grid of the groundwater system's water flow, various source and sink items and boundary conditions, as well as the corresponding parameters set in the pre-established groundwater numerical model, the groundwater numerical model is run, and the evolution of the groundwater system's water flow field is used to obtain groundwater dynamic parameters. By establishing a groundwater numerical model, setting parameters, running the model and evaluating the impact of water gushing, the dynamic evolution analysis of the groundwater system is made more comprehensive. Through the establishment and operation of the numerical model, quantitative groundwater system dynamic parameters can be provided.

[0072] Obtain a comprehensive evaluation diagram of the dynamic evolution of the groundwater system, including:

[0073] The groundwater system dynamic parameters are classified through the classification module, and the classified index parameters are quantified and mapped to obtain the single factor normalized thematic contour map corresponding to each characterization index;

[0074] The state variable weight vector function is used to calculate the corresponding dynamic weighted weight of each characterization index, according to the corresponding dynamic weighted weight of each characterization index;

[0075] The normalized thematic contour maps of each single factor are compositely superimposed to obtain a comprehensive evaluation map of the dynamic evolution of the groundwater system.

[0076] Classification modules, including:

[0077] An indicator grading module is used to determine the corresponding grade of each characterization data according to the indicator type and the preset indicator evaluation grading threshold of the parameters of the groundwater system dynamic parameters;

[0078] An indicator quantification module is used to determine the indicator parameters corresponding to each characterization indicator based on each characterization data, the corresponding level, and the maximum and minimum value normalization model; the maximum and minimum value normalization model is determined based on the measured characterization indicator, the corresponding level of the measured characterization indicator, and the corresponding indicator parameters;

[0079] The quantitative drawing module is used to perform quantitative drawing based on the parameters of each indicator to obtain the single-factor normalized thematic contour map corresponding to each characterization indicator.

[0080] By obtaining a comprehensive evaluation diagram of the dynamic evolution of the groundwater system and obtaining the dynamic analysis results of the groundwater system based on the comprehensive evaluation diagram of the dynamic evolution of the groundwater system, the accuracy of the analysis results is improved by combining the groundwater system characterization data and the environmental characterization data of the underground coal mining area.

[0081] The workflow of the classification module includes:

[0082] The indicator data in the groundwater system dynamic parameters are divided according to the indicator field and data attributes, and the indicator types and corresponding characterization indicators of the underground coal mine groundwater system are obtained;

[0083] Construct preset indicator evaluation grading thresholds according to the standard grading method, and determine the corresponding level of each characterization indicator according to the indicator type and the preset indicator evaluation grading thresholds;

[0084] Determine the indicator parameters corresponding to each characterization indicator based on the normalization model of each characterization indicator and the corresponding level and maximum and minimum values;

[0085] Quantitative drawing is performed based on the parameters of each indicator to obtain the single-factor normalized thematic contour map corresponding to each characterization indicator.

[0086] The dynamic evolution analysis results of the water system are obtained based on the comprehensive evaluation diagram of the dynamic evolution of the groundwater system, including:

[0087] Perform spatial positioning feature extraction on the feature bounding box sequence of the dynamic evolution comprehensive evaluation map to generate spatial positioning parameters. By performing spatial positioning feature extraction on the feature bounding box sequence, information such as the position, direction, and size of the target in three-dimensional space is obtained. The spatial positioning parameters provide the target's accurate position and posture, providing a basis for dynamic evolution analysis and plane image processing.

[0088] The dynamic evolution of the feature bounding box sequence is analyzed according to the spatial positioning parameters to generate dynamic evolution data. By analyzing the spatial positioning parameters of the feature bounding box sequence, the dynamic evolution information of the target in time is obtained. The dynamic evolution data describes the target's motion trajectory, shape change, and motion state, providing richer dynamic information for the processing of dynamic evolution comprehensive evaluation graphs.

[0089] Based on the dynamic evolution data, the dynamic evolution comprehensive evaluation map of the groundwater system is subjected to time-series frame image extraction to generate a groundwater system time-series frame image. Based on the dynamic evolution data, the dynamic evolution comprehensive evaluation map is subjected to time-series frame image extraction to extract continuous frames related to the target from the dynamic evolution comprehensive evaluation map to form a groundwater system time-series frame image sequence. The groundwater system time-series frame image provides time-related information of the target and provides continuous image data for analysis and processing.

[0090] Performing frame plane fracture processing on the groundwater system time-series frame images to generate dynamic multi-dimensional plane images. By performing frame plane fracture processing on the groundwater system time-series frame images, the plane differences between different frames are processed and fused into dynamic multi-dimensional plane images, providing more complete and continuous target information and more accurate input data for topological manifold deformation analysis.

[0091] Topological manifold deformation analysis is performed on dynamic multidimensional plane images to obtain the dynamic evolution analysis results of the groundwater system. By performing topological manifold deformation analysis on dynamic multidimensional plane images, the evolution characteristics of the target in the topological space are extracted. The topological evolution feature data describes the target's morphological changes, structural characteristics, relationship evolution and other information, providing a more in-depth feature analysis basis for dynamic evolution comprehensive evaluation map processing and target identification.

[0092] The topological manifold deformation analysis of the dynamic multi-dimensional plane image is performed to obtain the dynamic evolution analysis results of the groundwater system, including:

[0093] Perform topological time dimension analysis on dynamic multi-dimensional plane images and construct a manifold evolution time sequence diagram. By performing topological time dimension analysis on dynamic multi-dimensional plane images, a topological relationship evolution diagram of the target over time is established. The manifold evolution time sequence diagram describes the position and relationship changes of the target at different time points, providing a basis for the recognition and analysis of topological feature objects.

[0094] Perform topological object recognition on the manifold evolution time series graph to generate topological feature objects. Topological feature objects include water level distribution features, water flow velocity features, and water inflow features. By performing topological object recognition on the manifold evolution time series graph, the topological feature objects in the graph are identified, providing an object basis for manifold curvature change calculation and homology analysis.

[0095] The manifold curvature change of topological feature objects is calculated using the manifold evolution time sequence diagram to generate the manifold curvature data of the topological object. By calculating the manifold curvature change of the topological feature objects in the manifold evolution time sequence diagram, the curvature change information of the target in the topological space is obtained. The topological object manifold curvature data reflects the morphological evolution and curvature characteristics of the target, providing a basis for manifold homology analysis.

[0096] Based on the manifold curvature data of the topological object, the manifold evolution time sequence diagram is subjected to manifold homology analysis to generate homology feature vectors. By performing manifold homology analysis on the manifold curvature data of the topological object, the homology features of the target in the topological space are extracted, providing a basis for topological manifold deformation analysis.

[0097] Based on the homological eigenvectors, the dynamic multidimensional plane image is subjected to topological manifold deformation analysis to obtain the dynamic evolution analysis results of the groundwater system. By using the homological eigenvectors to perform topological manifold deformation analysis on the dynamic multidimensional plane image, the topological evolution characteristics of the target are extracted. The topological evolution feature data describes the morphological changes, topological relationships and evolution trajectory of the target, making the dynamic evolution analysis of the groundwater system more accurate, and thus making corresponding early warnings based on the analysis results.

[0098] In summary, the dynamic evolution analysis method of the underground coal mine groundwater system of the present invention makes the dynamic evolution analysis of the groundwater system more comprehensive and comprehensive by establishing a groundwater numerical model, setting parameters, operating the model and evaluating the impact of water gushing, etc., and extracts time-series frame images of the dynamic evolution comprehensive evaluation map based on the dynamic evolution data to provide continuous image data for analysis and processing. By fusing the time-series frame images of the groundwater system into dynamic multi-dimensional plane images, more complete and continuous target information is provided, more accurate input data is provided for topological manifold deformation analysis, and a deeper feature analysis basis is provided for dynamic evolution comprehensive evaluation map processing and target identification, so that the dynamic evolution analysis of the groundwater system is more accurate, and corresponding warnings can be made according to the analysis results.

[0099] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0100] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for analyzing the dynamic evolution of underground water systems in underground coal mines, characterized by: The following steps are involved: S1: Obtain historical groundwater system characterization data of underground coal mines and environmental characterization data of underground coal mine areas, and establish a three-dimensional groundwater system dynamic model based on the groundwater system characterization data and environmental characterization data; S2: Groundwater monitoring points are deployed in the underground coal mining area to monitor the groundwater system characterization data in the underground coal mining area in real time, and collect real-time characterization data of the underground coal mining area; S3: inputting the real-time monitored groundwater system characterization data and the real-time collected environmental characterization data into the three-dimensional groundwater system dynamic model to obtain the groundwater system dynamic parameters; S4: input the groundwater system dynamic parameters into the three-dimensional groundwater system dynamic model to obtain the dynamic evolution comprehensive evaluation diagram of the groundwater system; S5: The dynamic evolution analysis results of the water system are obtained based on the comprehensive evaluation diagram of the dynamic evolution of the groundwater system.

2. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 1, characterized in that: The environmental characterization data include unit water inflow of mines, land damage area, solid waste accumulation, goaf collapse elevation, goaf collapse slope, coal resource reserve-to-production ratio, ground collapse rate, wastewater recycling rate, and real-time meteorological data; the groundwater system characterization data include: groundwater level data, annual rainfall, distance from surface water system, groundwater dynamic parameters, net recharge, aquifer medium and aquifer permeability coefficient.

3. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 1, characterized in that: A three-dimensional groundwater system dynamic model is established based on groundwater system characterization data and environmental characterization data, including: A three-dimensional grid was established and the Kriging interpolation method was used to interpolate the surface elevation, the floor of the phreatic aquifer, and the roof and bottom elevations of the confined aquifer in the study area. The grid was then divided according to the area of ​​the underground coal mine. The historical groundwater system characterization data and the underground coal mining area environmental characterization data are assigned to the three-dimensional grid, and then on the three-dimensional grid; Run the Modflow model to obtain a three-dimensional groundwater system dynamic model.

4. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 1, characterized in that: Inputting the real-time monitored groundwater system characterization data and the real-time collected environmental characterization data into the three-dimensional groundwater system dynamic model to obtain the groundwater system dynamic parameters, including: Establish a groundwater system numerical model, set the time range, spatial range and calculation grid of the groundwater system flow, as well as the source and sink items and boundary conditions in the groundwater system numerical model; According to the real-time monitored groundwater system dynamics and groundwater level dynamics data, the corresponding parameters are set in the groundwater system numerical model; Run the groundwater system numerical model according to the water flow time range, spatial range and calculation grid of the groundwater system, various source and sink items and boundary conditions, and corresponding parameters set in the groundwater system numerical model; The groundwater system numerical model simulates the evolution of the groundwater system flow field and obtains the dynamic parameters of the groundwater system in the underground coal mining area.

5. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 4, characterized in that: The corresponding parameters include the spatial extent and temporal sequence of the underground coal mining area, the speed and height of coal mining, and the groundwater level drop data caused by coal mining. The dynamic parameters of the groundwater system include water level distribution, water flow velocity and water inflow.

6. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 1, characterized in that: Obtain a comprehensive evaluation diagram of the dynamic evolution of the groundwater system, including: The groundwater system dynamic parameters are classified through the classification module, and the classified index parameters are quantified and mapped to obtain the single factor normalized thematic contour map corresponding to each characterization index; The state variable weight vector function is used to calculate the corresponding dynamic weighted weight of each characterization index, according to the corresponding dynamic weighted weight of each characterization index; The normalized thematic contour maps of each single factor are compositely superimposed to obtain a comprehensive evaluation map of the dynamic evolution of the groundwater system.

7. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 6, characterized in that: The classification module includes: An indicator grading module is used to determine the corresponding grade of each characterization data according to the indicator type and the preset indicator evaluation grading threshold of the parameters of the groundwater system dynamic parameters; The indicator quantification module is used to determine the indicator parameters corresponding to each characterization indicator based on each characterization data, the corresponding level, and the maximum and minimum value normalization model; the maximum and minimum value normalization model is determined based on the measured characterization indicator, the corresponding level of the measured characterization indicator, and the corresponding indicator parameters; The quantitative drawing module is used to perform quantitative drawing based on the parameters of each indicator to obtain the single-factor normalized thematic contour map corresponding to each characterization indicator.

8. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 7, characterized in that: The workflow of the classification module specifically includes: The indicator data in the groundwater system dynamic parameters are divided according to the indicator field and data attributes, and the indicator types and corresponding characterization indicators of the underground coal mine groundwater system are obtained; Construct preset indicator evaluation grading thresholds according to the standard grading method, and determine the corresponding level of each characterization indicator according to the indicator type and the preset indicator evaluation grading thresholds; Determine the indicator parameters corresponding to each characterization indicator based on the normalization model of each characterization indicator and the corresponding level and maximum and minimum values; Quantitative drawing is performed based on the parameters of each indicator to obtain the single-factor normalized thematic contour map corresponding to each characterization indicator.

9. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 1, characterized in that: The dynamic evolution analysis results of the water system are obtained based on the comprehensive evaluation diagram of the dynamic evolution of the groundwater system, including: Extract spatial positioning features from the feature bounding box sequence of the dynamic evolution comprehensive evaluation graph to generate spatial positioning parameters; Performing dynamic evolution analysis on the feature bounding box sequence according to the spatial positioning parameters to generate dynamic evolution data; Extracting time series frame images from the groundwater system dynamic evolution comprehensive evaluation map based on dynamic evolution data to generate a groundwater system time series frame image; Perform frame plane fracture processing on the time-series frame images of the groundwater system to generate dynamic multi-dimensional plane images; The topological manifold deformation analysis is performed on the dynamic multi-dimensional plane image to obtain the dynamic evolution analysis results of the groundwater system.

10. The method for analyzing the dynamic evolution of underground water systems in underground coal mines according to claim 9, characterized in that: The topological manifold deformation analysis of the dynamic multi-dimensional plane image is performed to obtain the dynamic evolution analysis results of the groundwater system, including: Perform topological time dimension analysis on dynamic multi-dimensional plane images and construct a manifold evolution time sequence diagram; Performing topological object recognition on the manifold evolution time series diagram to generate topological feature objects, which include water level distribution features, water flow velocity features, and water inflow features; The manifold curvature change of the topological feature object is calculated using the manifold evolution time sequence diagram to generate the manifold curvature data of the topological object; Based on the manifold curvature data of the topological object, the manifold evolution time series graph is subjected to manifold homology analysis to generate homology eigenvectors; The topological manifold deformation analysis of the dynamic multi-dimensional plane image is performed based on the homological eigenvectors, and the dynamic evolution analysis results of the groundwater system are obtained.

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