A real-time water hazard assessment method and system for mine working face and mine-related areas

Abstract

The present invention discloses a method and system for real-time water hazard evaluation of a mine working face and a mine-related area. The method includes: conducting a basic water hazard evaluation on the working face; constructing a basic water hazard evaluation model for the working face according to the basic water hazard evaluation result; obtaining real-time water hazard perception monitoring data and monitoring results of the monitoring data related to the working face; obtaining a water hazard prediction of the mine according to the water hazard perception monitoring data and the monitoring results; conducting a comprehensive water hazard evaluation on the mine; iteratively optimizing the comprehensive water hazard evaluation results according to the real-time acquired water hazard perception monitoring data and monitoring results to obtain a dynamic water hazard evaluation result of the working face. In this way, water hazard prediction is performed using the dynamic monitoring data and monitoring results in the mining process, and a comprehensive water hazard evaluation is performed on the working face in combination with the basic water hazard evaluation model, so that the water hazard evaluation has dynamic and real-time characteristics, the water hazard prevention and control process is more timely, and the accuracy of the water hazard evaluation is improved while improving the water hazard prevention and control efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of mine monitoring, and in particular to a method and system for real-time water hazard assessment of a mine working face and mine-related areas. Background Art

[0002] Coal is my country's basic energy source, but it is seriously threatened by water damage during mining, which brings hidden dangers to the safe production of coal mines and threatens people's property and life safety. The hydrogeological conditions must be clarified before mine production. If they are not clarified, hydrogeological supplementary surveys should be carried out to evaluate the water hazard risks of coal mines. The detailed rules for water prevention and control require that mining activities are strictly prohibited before the hidden dangers of water hazards are clarified or eliminated. In order to further ensure the safe production of coal mines, it is necessary to re-evaluate the hydrogeological conditions of mining working faces, tunneling tunnels, etc. in a timely manner to meet the water hazard safety risk assessment during mine production.

[0003] The risk assessment of coal mine water hazards mainly focuses on the stages before the development of the shaft and tunnel system in the study area, during the tunnel excavation process, and before the working face mining, and combines the three elements of mine water filling to analyze, evaluate, and predict the degree of water hazard. The water hazard risk analysis and evaluation mainly includes big data collection, big data processing, water filling source analysis, water filling path analysis, mine water inrush model prediction, technical report generation and other processes, which can realize the water-rich zoning evaluation, water inrush hazard zoning, and water inrush (burst) prediction of the study area based on methods such as "three-map dual prediction method" and "five-map dual coefficient method".

[0004] In the existing coal mine water hazard risk assessment, water hazard assessment methods such as "three-picture dual prediction method" and "five-picture dual coefficient method" are mostly used. However, this method is mostly a static evaluation method, that is, using the exploration data of mine geophysical exploration and drilling and other projects, combined with the hydrogeological evaluation method, a one-time static evaluation of a certain area of ​​the mine or coal mining face is performed. However, with the production of coal mines, the hydrological conditions of the mine will change accordingly, and the water hazard risk is in a changing process. The traditional evaluation method cannot perform real-time dynamic evaluation of the mine face during the production process. Summary of the invention

[0005] The present invention solves the problem that the prior art cannot perform real-time dynamic evaluation on the mine working face during the production process by providing a method and system for real-time water hazard evaluation of the mine working face and mine-related areas.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] In the first aspect, the present invention provides a real-time water hazard assessment method for a mine working face and mine-related areas, comprising: before the mine working face is mined, based on the mine's hydrogeological basic data and geological exploration data, performing a basic water hazard assessment on the working face to obtain a basic water hazard assessment result for the working face; constructing a basic water hazard assessment model for the working face based on the basic water hazard assessment result; specifically, based on the mine's hydrogeological basic data and geological exploration data, performing a water hazard assessment on the working face through a three-image dual prediction method to obtain a corresponding coal seam roof water-filled aquifer water-richness zoning map and a top layer cracking safety zoning map; then superimposing the coal seam roof water-filled aquifer water-richness zoning map and the top layer cracking safety zoning map to obtain a comprehensive zoning map of roof water gushing conditions, dividing the mining area into five safety level areas, and using this as a basic model for water hazard assessment. During the production process of the working face, the working face related water hazard perception monitoring data and the monitoring results of the monitoring data are obtained in real time; wherein, the monitoring results are used to indicate the changes in the water hazard perception monitoring data; the water hazard perception monitoring data include the hydrological monitoring data of the working face, the microseismic monitoring data of the working face, the resistivity monitoring data of the top and bottom plates of the working face, the surface settlement and slope displacement data of the working face, and the data related to the water exploration and release drilling site of the working face; using the basic model of water hazard evaluation, the dynamic data is forward deduced based on the water hazard perception monitoring data and the monitoring results to obtain the water hazard prediction of the mine; the working face is comprehensively evaluated for water hazard based on the water hazard prediction and the basic model of water hazard evaluation to obtain the comprehensive evaluation results of water hazard of the working face; the comprehensive water hazard evaluation results are iteratively optimized based on the real-time acquired water hazard perception monitoring data and monitoring results to obtain the dynamic evaluation results of water hazard of the working face.

[0008] In some possible implementations, the drilling trajectory of the working face, the dynamic monitoring data of the water-rich abnormal area of ​​the working face, the dynamic monitoring data of the roof fall height of the working face, and the water quality, water level, water inflow and drainage data of the working face.

[0009] In some possible implementations, after obtaining the dynamic evaluation results of water hazards at the working face, the method further includes: automatically triggering a multi-level water hazard warning and pushing a warning according to the dynamic evaluation results of water hazards at the working face.

[0010] In some possible implementations, automatically triggering a multi-level flood warning includes: determining the flood warning level corresponding to the flood dynamic evaluation result through a preset flood warning mechanism, and issuing corresponding level of warning reminders and warning information push; wherein, the preset flood warning mechanism includes different flood levels corresponding to the flood dynamic evaluation result and flood warning methods corresponding to the flood levels.

[0011] In some possible implementations, after obtaining the dynamic evaluation results of water hazards in the working face, the method also includes: generating a working face water hazard evaluation report based on the dynamic evaluation results of water hazards in the working face, and formulating corresponding advance control and prevention measures for abnormal areas in the mine where water hazards may occur.

[0012] In some possible implementations, the water hazard assessment report includes at least: analysis of basic assessment results of water hazards at the working face and dynamic assessment results of water hazards, as well as prediction of water hazards at the working face.

[0013] In some possible implementations, the method further includes: proactively treating the abnormal area through proactive treatment and prevention measures.

[0014] In some possible implementations, after the abnormal area is proactively treated, the method further includes: optimizing the basic model for water hazard assessment according to water hazard perception monitoring data, monitoring results, and basic hydrogeological data to obtain an optimized assessment model.

[0015] In a second aspect, the present invention provides a real-time water hazard assessment system for a mine working face and mine-related areas, including: a basic assessment module for conducting a basic water hazard assessment on the working face before the mine working face is mined, based on the mine's hydrogeological basic data and geological exploration data, and obtaining a basic water hazard assessment result for the working face; an assessment model construction module for constructing a basic water hazard assessment model for the working face based on the basic water hazard assessment result; a data acquisition module for acquiring real-time water hazard perception monitoring data related to the working face and the monitoring results of the monitoring data during the production process of the working face; wherein the monitoring results are used to indicate changes in the monitoring data; the water hazard perception monitoring data includes the working face Hydrological monitoring data, microseismic monitoring data of the working face, resistivity monitoring data of the top and bottom plates of the working face, surface settlement and slope displacement data of the working face, and data related to the water exploration and release drilling site of the working face; a prediction module, which is used to perform dynamic data forward deduction based on the water hazard perception monitoring data and monitoring results to obtain the water hazard prediction of the mine; a comprehensive evaluation module, which is used to perform a comprehensive water hazard evaluation on the working face based on the water hazard prediction situation and the basic model for water hazard evaluation to obtain the comprehensive water hazard evaluation results of the working face; a dynamic evaluation module, which is used to iteratively optimize the comprehensive water hazard evaluation results based on the real-time acquired water hazard perception monitoring data and monitoring results to obtain the dynamic evaluation results of water hazard on the working face.

[0016] One or more technical solutions provided by the present invention have at least the following technical effects or advantages:

[0017] In the present invention, before the working face of the mine is mined, a basic water hazard evaluation is performed on the working face; a basic water hazard evaluation model for the working face is constructed based on the basic water hazard evaluation results; during the excavation process of the working face of the mine, relevant water hazard perception monitoring data and monitoring results of the monitoring data of the working face are obtained in real time; forward deduction is performed based on the water hazard perception monitoring data and the monitoring results to obtain the water hazard prediction of the mine; a comprehensive water hazard evaluation is performed on the mine based on the water hazard prediction and the basic water hazard evaluation model to obtain the comprehensive water hazard evaluation results of the working face; the comprehensive water hazard evaluation results are iteratively optimized based on the real-time acquired water hazard perception monitoring data and monitoring results to obtain the dynamic water hazard evaluation results of the working face. In this way, dynamic monitoring data and monitoring results of water sources and related factors affecting water source changes are collected during the mining process of the mine to predict water hazard, and a comprehensive water hazard evaluation is performed on the working face based on the water hazard prediction and the basic water hazard evaluation model, so that the water hazard evaluation has dynamic and real-time characteristics, and the water hazard prevention and control process is more timely, which improves the efficiency of water hazard prevention and control while improving the accuracy of water hazard evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0019] Figure 1 A schematic flow chart of an embodiment of a method for real-time water hazard assessment of a mine working face and mine-related areas provided for the implementation of the present invention;

[0020] Figure 2 It is a schematic diagram of the water-rich zoning map of the working face roof obtained by the three-map double prediction method;

[0021] Figure 3 It is a structural schematic diagram of the static water inrush condition zoning before roof mining combined with the roof cross-crack safety zoning diagram;

[0022] Figure 4 A schematic diagram of a structure for dynamically evaluating the water inrush condition of the roof of a working face by using the method provided by an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of an embodiment of another method for real-time water hazard assessment of a mine working face and a mine-related area in an embodiment of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a real-time water hazard assessment system for a mine working face and mine-related areas in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0026] In the relevant description of this embodiment, the terms "including, containing, having" and the like are open terms and are generally understood to include but not be limited to; the term "at least one" is generally understood to mean one or more, where "plurality" refers to two or more; the term "at least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items, for example, "at least one of a, b or c", or "at least one of a, b and c", can all represent: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, c can be single or multiple, respectively; the symbol "A / B" is used to describe the selection relationship of associated objects, generally indicating an "or" relationship before and after.

[0027] In the following description of the present embodiment, the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "an" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0028] Those skilled in the art should understand that in the following description of the embodiments of the present invention, the order of serial numbers does not mean the order of execution, some or all of the steps can be executed in parallel or sequentially, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0029] It will be appreciated by those skilled in the art that the numerical ranges in the embodiments of the present invention are to be understood as each intermediate value between the upper and lower limits of the scope being specifically disclosed. Each smaller range between the intermediate value in any stated value or stated range and any other stated value or intermediate value in the range is also included in the present invention. The upper and lower limits of these smaller ranges may be independently included or excluded in the scope.

[0030] Unless otherwise specified, the technical / scientific terms used herein have the same meanings as those generally understood by those skilled in the art to which the invention belongs. Although the present invention only describes preferred methods and materials, any methods and materials similar or equivalent to those herein may also be used in the implementation or testing of the present invention. All documents mentioned in this specification are incorporated by reference to disclose and describe methods and / or materials related to the documents. In the event of a conflict with any incorporated document, the content of this specification shall prevail.

[0031] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0032] The present invention solves the problem that the prior art cannot perform real-time dynamic evaluation on the mine working face during the production process by providing a real-time water hazard evaluation and early warning method and system for the mine working face and mine-related areas.

[0033] Figure 1 A schematic diagram of an embodiment of a method for real-time water hazard assessment of a mine working face and a mine-related area provided for the implementation of the present invention, see Figure 1 As shown, the above method may include:

[0034] S101, before the working face of the mine is mined, a basic water hazard evaluation is performed on the working face according to the basic hydrogeological data and geological survey data of the mine to obtain a basic water hazard evaluation result of the working face;

[0035] In some embodiments, the mine can be a mine used to mine any type of mineral resources. For example, copper mines, iron mines, gold mines, coal mines, etc. In the embodiments of the present invention, the method for predicting and preventing water damage in coal mines is mainly used. In the following description, the method for predicting and preventing water damage in mines provided by the embodiments of the present invention is described by taking coal mines as an example.

[0036] Among them, the basic hydrogeological data and geological exploration data of the mine can be used to understand the hydrogeological conditions of the mine, groundwater distribution, water pressure, water quality, water temperature and other parameters, as well as the relationship between groundwater and surface water. The basic hydrogeological data and geological exploration data can be obtained through exploration, geophysical exploration, drilling and other operations on the hydrogeology of the coal mine, or can be determined by directly consulting the existing data of exploration, geophysical exploration, drilling and other operations on the hydrogeology of the coal mine.

[0037] The above method for basic evaluation of water hazards in working faces adopts a preset water hazard evaluation method, which can be any existing water hazard evaluation method, such as the three-map double prediction method, the five-map double coefficient method, etc. These methods have their own characteristics and application scope, and can be selected according to the actual situation of the mine and the evaluation needs. Among them, the three-map double prediction method mainly analyzes the hydrogeological conditions of the mine location, makes relevant hydrogeological maps, and predicts the water inflow and water inrush disasters. This method can be used to understand the hydrogeological environment of the mine, predict possible water hazards, and provide a scientific basis for mine safety production and disaster prevention. The five-map double coefficient rule is based on the three-map double prediction method, adding two drawings, the mine drainage system map and the mine excavation engineering plan map, and introducing two coefficients, namely the "water inrush coefficient" and the "water inflow coefficient". This method can more comprehensively evaluate the water hazard risk of the mine and improve the accuracy and reliability of the evaluation. In addition to the above two methods, there are many other water hazard evaluation methods to choose from. Including but not limited to numerical simulation method, probability statistics method, fuzzy comprehensive evaluation method, etc. In practical applications, the appropriate water hazard assessment method can be selected according to the specific conditions of the mine and the assessment needs, so as to ensure the accuracy and reliability of the assessment results.

[0038] S102, constructing a basic model for water hazard assessment of the working face according to the basic water hazard assessment results;

[0039] It should be noted that before the coal mine working face is put into production, on the basis of the above step S101, a basic evaluation of coal mine water hazards is performed using methods such as the three-picture dual prediction method, which can comprehensively analyze the source, channel and intensity of mine water hazards, thereby preliminarily predicting the water hazards that may occur during the mining process. This evaluation can provide a scientific basis and technical support for the prevention and control of mine water hazards, and guide subsequent mine design and production work. By establishing a basic model for mine water hazard evaluation based on the results of the basic water hazard evaluation, the risk areas and levels of mine water hazards can be further clarified, and prevention and control measures and plans can be optimized. Through the analysis and simulation of the model, the flow and gushing of groundwater during the mining process can be predicted, providing early warning and guidance for actual production.

[0040] For example, by using the above-mentioned three-image dual prediction method, based on the hydrogeological basic data and geological survey data of the mine, water hazard evaluation can be performed by using the three-image dual prediction method, and the corresponding coal seam roof water-filled aquifer water-rich zoning map and the top layer cracking safety zoning map can be obtained. Then, the coal seam roof water-filled aquifer water-rich zoning map and the top layer cracking safety zoning map are image-superimposed to obtain a comprehensive zoning map of roof water inrush (burst) conditions, and the mining area is divided into five safety level areas, which is used as the basic model for water hazard evaluation.

[0041] It is understandable that in the coal mine production process, the water level and water inflow in the mine are important factors affecting the risk of water damage. If the water level in the mine is too high, or there is a large amount of water inflow, it may cause a flood accident. Based on this, after executing the above step S102, the method may also include the following steps:

[0042] S1021, determine the location of abnormal water-bearing bodies in the mine;

[0043] S1022, drain abnormal water bodies through water exploration and drainage drilling technology;

[0044] S1023, re-obtaining the basic hydrogeological data of the mine after drainage treatment, and revising the basic model for water hazard assessment.

[0045] Among them, the location of the abnormal water-bearing body in the mine can be determined by surveying, collecting and analyzing geological, hydrogeological and other data through geophysical prospecting, drilling and other methods, so as to identify the location and range of the abnormal water-bearing body. After the location of the abnormal water-bearing body is determined, the abnormal water-bearing body can be drained by using the water exploration and drainage drilling technology through step S1022. The purpose of drainage is to lower the water level of the abnormal water-bearing body, reduce the amount of water inflow, and thus reduce the risk of water damage. By establishing a drainage channel to discharge the water in the abnormal water-bearing body out of the mine, the production environment in the mine can be improved and the production efficiency can be improved.

[0046] After the drainage treatment, the hydrogeological data in the mine has changed. Therefore, re-acquiring the basic hydrogeological data of the mine after the drainage treatment through step S1023 can reflect the groundwater conditions after the drainage treatment, including parameters such as water level, flow, and water quality. In this process, by comparing the data before and after the drainage, the effect of the drainage treatment can also be evaluated. The basic model for water hazard evaluation is then revised in order to better reflect the distribution, nature and laws of water hazards in the mine. Based on the re-acquired hydrogeological basic data, the impact of the drainage treatment on the abnormal water-containing body in the mine can be analyzed, and the model can be revised accordingly. The revised model can better guide subsequent prevention and control work, and provide a scientific basis and technical support for the safety and stability of coal mine production.

[0047] S103, during the production process of the working face, real-time acquisition of working face related water hazard perception monitoring data and monitoring results of the monitoring data;

[0048] Among them, the monitoring results are used to indicate the changes in water hazard perception monitoring data;

[0049] In some embodiments, water hazard sensing monitoring data may include hydrological monitoring data of the working face, microseismic monitoring data of the working face, resistivity monitoring data of the top (bottom) plate of the working face, surface settlement and slope displacement data of the working face, and data related to the water exploration and release drilling site of the working face. Among them, the hydrological monitoring data of the working face includes data such as water quality, water level, water inflow, and drainage volume related to the working face.

[0050] In some embodiments, the resistivity monitoring data may be monitoring data obtained by monitoring multiple locations of the working face. The multiple locations are usually key areas that can reflect the factors of mine water hazards. The location area determination method of the multiple locations may include but is not limited to methods based on geological surveys, historical data analysis, and expert evaluation.

[0051] It should be noted that the hydrological monitoring data describes the hydrogeological characteristics of the mine and the condition of the groundwater. The hydrological monitoring data may specifically include the water quality and water level of the mine aquifer, the mine water inflow, the drainage, the surface water system, and atmospheric precipitation.

[0052] Microseismic monitoring data of the mining face can be used to obtain information such as the location of crack development during the mining process. Microseismic monitoring is a method of using microseismic energy to monitor rock mass fractures. By arranging microseismic sensors on the working face of the mine, it is possible to capture tiny vibrations inside the rock mass, and analyze the frequency, energy and other parameters of these vibrations to determine the fracture of the rock mass. Through microseismic monitoring, the location and expansion direction of cracks during the mining process of the working face can be monitored in real time, providing timely information for water disaster prevention and control.

[0053] The resistivity data of the mining face and the roof (bottom) plate of the mine can be used to determine whether the fissure development of the mining face has affected the aquifer and formed a water-conducting channel in the aquifer. First, by measuring the resistivity value of the coal seam, the development of the fissure can be judged. If the resistivity value of the coal seam drops significantly, it means that the development of the fissure may have affected the aquifer and formed a water-conducting channel, allowing groundwater to enter the coal seam through these channels. Secondly, by monitoring the resistivity value of the top and bottom plates of the coal seam, if the resistivity value of the top and bottom plates decreases abnormally, it means that the rock strata of the top and bottom plates may be damaged or separated, forming a low-resistance anomaly. At this time, the top and bottom plates of the coal seam may be unstable, and corresponding measures need to be taken to ensure safe production.

[0054] In the embodiment of the present invention, by monitoring the resistivity value data of the mining working face and the roof and floor of the mine, potential water hazard risks and instability of the roof and floor of the coal seam can be discovered in time, providing a basis for taking corresponding measures to ensure the safety and stability of mine production.

[0055] Surface settlement and slope displacement are direct manifestations of the impact of underground mining activities on the surface environment, and are also important indicators of changes in geological stability. By real-time monitoring of surface settlement and slope displacement data at the working face, the changing trend of geological structure, such as rock layer movement and fault activity, can be discovered in time, thereby evaluating the geological stability around the mine. For example, when the surface settlement or slope displacement rate exceeds a certain threshold, it may indicate the occurrence of geological disasters (such as landslides and collapses caused by water hazards). Therefore, these data can issue early warning signals, providing time for the mine to take emergency risk avoidance measures.

[0056] The water exploration and release drilling site is a special project carried out by the mine to prevent water disasters. Through drilling sampling and analysis, key parameters such as groundwater quality, water volume, and water pressure can be directly obtained. During the drilling process, the lithology changes and water discharge conditions of the borehole can be recorded, and water quality analysis can be performed by sampling. The hydrogeological conditions of the working face can be evaluated by combining the drilling data and the water quality analysis results, providing a basis for formulating a drainage plan. In addition, the water exploration and release drilling site data can also be used to verify the accuracy and reliability of the water disaster prediction model. By comparing and analyzing the measured data with the model prediction results, the deficiencies in the model can be discovered and improved in time to improve the prediction accuracy. Among them, obtaining the hydrological monitoring data of the working face of the above-mentioned mine, the microseismic monitoring data of the working face, the resistivity value data of the top and bottom plates of the working face, the surface settlement and slope displacement data of the working face, and the relevant data of the water exploration and release drilling site of the working face can be achieved by setting up different data acquisition systems in the mine. For example, the data acquisition system can be different sensor devices, and corresponding sensors are set at different locations in the mine, and the sensors are used to collect monitoring data of water hazard factors at the corresponding locations in real time.

[0057] In some embodiments, in order to timely grasp the water gushing situation of the water exploration and drainage drilling holes, the above-mentioned monitoring data may also include: the drilling trajectory of the working face, the dynamic monitoring data of the water-rich abnormal area of ​​the working face, the dynamic monitoring data of the roof fall height of the working face, the water quality, water level, water gushing amount, drainage amount and other hydrological monitoring data of the working face.

[0058] Among them, the water inflow data of the exploration and drainage boreholes can include the changing trend, peak and valley values ​​of the water inflow, etc. These data can be used to judge the hydrogeological conditions of the mine and the flow law of groundwater, and provide a basis for formulating more scientific and effective water prevention and control measures.

[0059] S104, using the basic model for water hazard assessment, forward deduction of dynamic data is performed based on water hazard perception monitoring data and monitoring results to obtain a water hazard prediction situation of the mine;

[0060] It should be noted that forward deduction is a prediction method based on known conditions and causal relationships. In an embodiment of the present invention, forward deduction and superposition processing are performed based on water hazard perception monitoring data and monitoring results using a basic model for water hazard assessment to simulate and predict future changes in monitoring data. First, the future water hazard situation at each monitoring point is predicted by forward deduction. In this way, multiple factors and data sources can be comprehensively considered to improve the accuracy and reliability of the prediction. At the same time, combined with the simulation results of the basic model for water hazard assessment, possible future water hazard risks and the degree of harm can be predicted.

[0061] For example, first, data from different monitoring equipment (taking water hazard perception monitoring data including the hydrological monitoring data of the above-mentioned working face, microseismic monitoring data of the working face, resistivity monitoring data of the top and bottom plates of the working face, surface settlement and slope displacement data of the working face, and relevant data of the water exploration and release drilling site of the working face as an example) can be integrated and fused, including the unification of data formats and possible missing value processing, to ensure that all data can be analyzed under the same framework.

[0062] Secondly, the monitoring results of the monitoring data can be analyzed, that is, the changes in the above-mentioned water hazard perception monitoring data. Among them, the analysis of the hydrological monitoring data of the working face can include observing the real-time changes of data such as water quality, water level, water inflow, and drainage, and identifying abnormal fluctuations or trend changes. The analysis of the microseismic monitoring data of the working face can include analyzing the frequency, intensity, location, etc. of microseismic events, judging the stability of the rock formation and its correlation with the risk of water hazard. The analysis of the resistivity monitoring data of the top and bottom plates of the working face can include evaluating the water content of the top (or bottom) rock formation and its changing trend through the change of resistivity. The analysis of the data involving surface settlement and slope displacement of the working face can include monitoring the rate and direction of surface settlement and slope displacement, and analyzing its relationship with groundwater changes. The analysis of the data related to the water exploration and release drilling site of the working face can include evaluating the effect of water exploration and release, and observing the changes in the hydrogeological conditions around the borehole.

[0063] Afterwards, the above monitoring results can be comprehensively evaluated, considering their mutual influence and correlation. For example, rising water levels and changes in water quality may be related to rising groundwater levels, while increased microseismic activity may indicate the rupture or movement of rock formations, thereby increasing the risk of water damage. Using the basic model for water damage assessment, based on current and historical water damage perception monitoring data, the future changes of various monitoring data are forward-derived to generate forecast values ​​for a period of time in the future.

[0064] In addition, considering the mutual influence between different monitoring data, the prediction results of each single monitoring data can also be superimposed. The superposition processing can be achieved by weighted averaging of multiple single monitoring data, multi-model fusion or expert system, so as to comprehensively evaluate the overall water hazard risk of the mine and obtain the water hazard prediction. Among them, the prediction results of the water hazard prediction can at least include information such as the water level change, water inflow change, and distribution of potential danger areas in the mine in the future.

[0065] Finally, the forecast results of the flood damage forecast situation can be presented in an intuitive and easy-to-understand manner, such as through charts, maps or reports.

[0066] S105, performing a comprehensive water hazard evaluation on the working face based on the water hazard prediction situation and the basic water hazard evaluation model to obtain a comprehensive water hazard evaluation result for the working face;

[0067] In the embodiment of the present invention, before the working face of the mine is mined, the static data such as the basic hydrogeological data and geological survey data of the mine are obtained through the above step S101 to perform a basic evaluation of water hazards on the working face, and obtain the basic evaluation results of water hazards for static evaluation. Then, through the above step S104, the dynamic perception data such as the monitoring results of the water hazard perception monitoring data and the monitoring data are used to obtain the water hazard prediction situation of dynamic evaluation. Then, through the above step S105, the data of the static evaluation results and the dynamic evaluation results are combined to perform a comprehensive evaluation, and the dynamic real-time evaluation results of water hazards in the working face are obtained. In this way, the water hazard prediction situation is combined with these basic evaluation data, which can provide a more comprehensive understanding of the current and future water hazard risks of the mine. In this process, the water hazard prediction situation, as a key data basis, provides an important reference for the dynamic evaluation results of water hazards. It can be used to identify working faces and areas with higher risks, so that prevention and control strategies and emergency plans can be formulated more targetedly. Finally, the dynamic evaluation results of water hazards in the working face obtained are an evaluation that comprehensively considers the current and potential water hazard risks, which can provide important decision-making support for the safe production and disaster prevention and control of mines.

[0068] For example, taking the static evaluation method as the three-image dual prediction method to evaluate the risk of mine water hazards, Figure 2 This is a schematic diagram of the water-rich zoning map of the working face roof obtained by the three-map dual prediction method. Figure 3 It is a structural schematic diagram of the static water inrush condition zoning before roof mining combined with the roof cross-crack safety zoning diagram, that is, the basic model for water hazard evaluation in the embodiment of the present invention. When the static evaluation method is the above-mentioned three-map dual prediction method, the basic model for water hazard evaluation includes the following: Figure 3 The water-rich zone diagram and roof cross-crack safety zone diagram are shown. Figures 2 to 3As shown, based on the three-map dual prediction method, the water-richness zoning of the working face roof is determined to be divided into several levels such as extremely strong, strong, medium and weak. Combined with the roof cross-crack safety zoning map, according to the overlapping parts of the roof cross-crack safety zoning map and the different water-richness level zones of the water-richness zoning map, five level areas can be divided into dangerous, relatively dangerous, excessive, relatively safe and relatively safe.

[0069] Furthermore, taking the water hazard perception monitoring data including the microseismic monitoring data of the working face and the resistivity monitoring data of the top (bottom) plate of the working face as an example, Figure 4 The schematic diagram of the structure of dynamically evaluating the water inrush condition of the roof of the working face by the method provided by the embodiment of the present invention. Figure 4 In the water hazard prediction, the water hazard perception monitoring data obtained in real time and the microseismic monitoring data in the monitoring results, the drilling pressure anomaly distribution map determined, and the electrical anomaly area distribution map determined by the resistivity value data. Among them, when evaluating water hazard through the three-image dual prediction method, the microseismic monitoring system can be used to obtain microseismic event data in real time, calculate the distance from the microseismic event point to the coal seam roof, and determine the height of the water-conducting fracture zone in the coal seam roof. Specifically, it can be expressed by the following formula (1):

[0070] (1)

[0071] in, is the height of the water-conducting fracture zone in the coal seam roof. is the elevation of the microseismic event point, is the elevation of the coal seam roof. During coal seam mining operations, the roof rock strata undergo significant physical changes due to stress redistribution, resulting in the formation of fractures and fracture zones. These geological anomaly areas will significantly manifest as abnormal fluctuations in drilling pressure parameters during subsequent drilling exploration, such as a sudden drop in drilling pressure, an abnormal increase in drilling speed, or borehole jamming. Given the close connection between fracture zones and drilling pressure anomalies, and the fact that fracture zones are usually located in specific areas above the coal seam roof, their specific morphology and extension range are deeply affected by the specific conditions of coal seam mining, complex geological structures, and the physical characteristics of rock formations.

[0072] Therefore, after obtaining the height of the water-conducting fracture zone in the roof of the coal seam, it is possible to relatively accurately predict which areas are more likely to encounter abnormal drilling pressure during drilling operations based on this key data, combined with the principles of geomechanics and the actual conditions on site. This process not only improves the safety and efficiency of drilling operations, but also provides strong data support for the preventive assessment of geological disasters. Finally, using the information on the height of the water-conducting fracture zone in the roof of the coal seam, a detailed and accurate distribution map of abnormal drilling pressure areas can be drawn.

[0073] The electrical monitoring data can be used to obtain the resistivity attribute body through the ordinary Kriging interpolation method, and then the resistivity anomaly threshold is set to obtain the resistivity anomaly body, and then the distance between the resistivity anomaly body and the water-conducting fracture zone is calculated. Specifically, it can be expressed by the following formula (2):

[0074] (2)

[0075] in, is the distance between the resistivity anomaly and the water-conducting fracture zone, is the elevation of the abnormal resistance body, It is the development height of water-conducting fracture zone in the coal seam roof.

[0076] The resistivity decrease phenomenon caused by groundwater enrichment between the resistivity anomaly body and the water-conducting fracture zone. Since the water-conducting fracture zone is the main channel for groundwater flow, its resistivity anomaly often appears as a continuous low-resistivity zone with a certain width and direction. Therefore, by analyzing and comparing the characteristics of resistivity anomalies at different locations and their distances from the water-conducting fracture zone, the approximate location, shape and range of the water-conducting fracture zone can be inferred. Then, the resistivity monitoring data can be used, combined with the knowledge of geological exploration and groundwater flow laws, to draw a resistivity anomaly area distribution map to intuitively display the underground geological structure characteristics.

[0077] The above-obtained drilling pressure abnormal distribution map and electrical method abnormal area distribution map are used as the water hazard prediction situation obtained in this embodiment.

[0078] By superimposing the above water-rich zoning map, roof cross-fracture safety zoning map, drilling pressure abnormal distribution map and electrical method abnormal area distribution map, Figure 4 Each area is divided into different safety levels such as dangerous area, relatively dangerous area, transition area, relatively safe area, and safe area. The value of can be used to divide the mining area into multiple safety level zones, and a plane map can be obtained. It can then be superimposed with the basic model for water hazard assessment to conduct a dynamic evaluation and prediction of mine water hazards.

[0079] In some embodiments, Figure 4The conditions for dividing each hazard level may include: dividing the parts where the resistivity anomaly zone distribution map and the drilling pressure anomaly zone distribution map overlap with the coal seam roof cross-fracture safety zoning map respectively as relatively dangerous areas; dividing the parts where the resistivity anomaly zone distribution map, the drilling pressure anomaly zone distribution map and the coal seam roof cross-fracture safety zoning map overlap at the same time as dangerous areas; dividing the parts where the coal seam roof water-filled aquifer water-rich zoning map and the coal seam roof cross-fracture safety zoning map overlap, according to the preset contour lines of the coal seam roof water-filled aquifer water-rich zoning map, into relatively safe areas, transition areas, relatively dangerous areas, and dangerous areas; dividing the parts where the resistivity anomaly zone distribution map and the drilling pressure anomaly zone distribution map overlap with the coal seam roof water-filled aquifer water-rich zoning map, and the areas located in the coal seam roof cross-fracture safety zoning map are divided into dangerous areas.

[0080] It should be noted that the above Figures 2 to 4 The above is only an exemplary description of the method provided in the embodiment of the present invention. The method of obtaining the basic model of water hazard assessment through static data and obtaining the water hazard prediction through dynamic data can adopt any existing method, such as the above-mentioned "three-picture dual prediction method", "five-picture dual coefficient method", etc. The selection can be based on the needs in the actual application process, and the embodiment of the present invention does not specifically limit this.

[0081] It is understandable that the existing method for evaluating water damage to the working face roof is only based on pre-mining static data, and the evaluation results can be as follows: Figure 3 As shown, by using the method provided by the embodiment of the present invention, by comparison Figures 2 to 4 As shown in the figure, by combining the water hazard prediction situation and the basic model of water hazard assessment, the working face is comprehensively evaluated for water hazard. On the basis of static risk assessment, the evaluation results of dynamic monitoring are also combined to enrich the dimension of evaluation data, making the evaluation of water inrush risk of the working face roof more comprehensive and detailed. In this way, by combining static and dynamic evaluation, not only the accuracy of water hazard evaluation is improved, but also a more scientific basis is provided for subsequent risk management and prevention and control measures. By accurately identifying risk areas and levels, more targeted response measures can be formulated, such as strengthening monitoring, early drainage, and strengthening support, thereby effectively reducing the impact of water hazards on the safe production of the working face.

[0082] In addition to the microseismic monitoring data of the working face and the resistivity monitoring data of the top and bottom plates of the working face used in the above examples, if other types of water hazard perception monitoring data are involved (such as surface subsidence, slope displacement data involving the working face or data related to the water exploration and release drilling site of the working face), the processing of this type of data refers to the processing of the microseismic monitoring data of the working face and the resistivity monitoring data of the top and bottom plates of the working face in the above examples, and the abnormal distribution maps corresponding to the data are obtained respectively, and all the abnormal distribution maps obtained in the embodiment are superimposed with the two maps of the basic water hazard evaluation results of the static evaluation (i.e., the water-richness zoning map of the coal seam roof water-filled aquifer and the top layer fracturing safety zoning map), and divided into different safety levels to obtain the comprehensive water hazard evaluation results of the corresponding embodiment.

[0083] S106, iteratively optimizing the comprehensive water hazard evaluation results according to the real-time acquired water hazard perception monitoring data and monitoring results, and obtaining a dynamic water hazard evaluation result of the working face.

[0084] It should be noted that iterative processing is a process of continuous updating and optimization. By continuously inputting new data and information, correcting and improving the model, the accuracy and reliability of the prediction results can be improved. In the prediction of mine water hazards, the input data of the basic model of water hazard evaluation is continuously iterated through iterative processing, that is, the above-mentioned monitoring data, and then corresponding prevention and control measures are taken according to the water hazard prediction situation, and abnormal areas where water hazards may occur are treated in advance.

[0085] It is understandable that the water hazard situation at the working face may change with various factors such as mining activities, changes in geological conditions, rainfall, etc. Therefore, by using real-time monitoring data and monitoring results to iterate and optimize the comprehensive water hazard evaluation results multiple times, we can gradually establish a water hazard dynamic evaluation model that can reflect the water hazard situation at the working face in real time, so as to obtain more accurate and timely water hazard dynamic evaluation results and provide timely and accurate decision-making support for the safe production of mines.

[0086] In some embodiments, after obtaining the dynamic evaluation result of water hazard at the working face through the above step S106, the above method may further include: automatically triggering a multi-level water hazard warning and pushing a warning according to the dynamic evaluation result of water hazard at the working face.

[0087] Among them, the automatic triggering of multi-level water disaster warnings can specifically include:

[0088] Determine the water hazard warning level corresponding to the water hazard dynamic evaluation result through the preset water hazard warning mechanism, and issue corresponding level of warning reminders and push warning information;

[0089] Among them, the preset water disaster warning mechanism includes different water disaster levels corresponding to the water disaster dynamic evaluation results and water disaster warning methods corresponding to the water disaster levels.

[0090] Specifically, in order to better deal with the risk of mine water damage, a water damage early warning mechanism is set up, and different early warning methods are adopted according to the different levels of water damage prediction. For example, the early warning method can be in various forms such as sound, text message, phone, email, etc., so as to promptly notify relevant personnel to determine the degree of water damage risk in a timely manner and take timely response measures.

[0091] According to the preset flood warning mechanism, once the flood prediction is found to be similar to the flood situations corresponding to different flood levels, for example, if the similarity between the flood prediction and the flood situation corresponding to the flood level reaches a certain threshold or condition, the corresponding warning method can be automatically triggered to remind. These reminders can be sending text messages to mine managers, calling alarm phones, playing alarm sounds, etc. At the same time, it can also be widely disseminated through social media, mine internal communication systems, etc., so that more people can get the warning information in time.

[0092] In addition to automatic warnings, you can also set up manual warning triggering methods to provide timely warning reminders in special circumstances. For example, when an abnormal situation is discovered or a report is received from other personnel, relevant personnel can manually trigger the corresponding warning method to remind them.

[0093] In summary, through the preset water disaster warning mechanism and corresponding warning reminder methods, water disaster warning information can be conveyed in a timely and effective manner, improving the mine's ability to cope with disasters and its response speed.

[0094] In some embodiments, after obtaining the water hazard dynamic evaluation result of the working face through the above step S106, the above method may further include:

[0095] Based on the dynamic evaluation results of working face water hazards, a working face water hazard evaluation report is generated, and corresponding advanced control and prevention measures are formulated for abnormal areas in the mine where water hazards may occur.

[0096] In some embodiments, the water hazard assessment report may at least include: an analysis of the basic assessment results of water hazards at the working face and the dynamic assessment results of water hazards, as well as the prediction and forecast of water hazards at the working face.

[0097] It should be noted that the water hazard assessment report is a report that comprehensively assesses the water hazard risk of the mine, which includes the analysis of the basic evaluation results and dynamic evaluation results of the water hazard of the working face, as well as the water hazard prediction and forecast of the working face. The water hazard assessment report first conducts a basic evaluation of the water hazard risk of the working face based on historical data, geological conditions and environmental factors, and reveals the risk level and key risk areas of each working face. The water hazard assessment report uses the real-time collected water hazard perception monitoring data and monitoring results, combined with the basic model of water hazard assessment to conduct dynamic data analysis and processing, and obtains the dynamic evaluation results of water hazards, and analyzes the changing trend and potential risk points of water hazard risks. By establishing a water hazard assessment report, it provides a decision-making basis for mine management to guide them to formulate targeted water hazard prevention and control measures and emergency plans to ensure the safe production of mines.

[0098] After obtaining the water hazard assessment report, in order to effectively prevent the water hazard risk of the mine, corresponding prevention and control measures can be taken in advance. These measures can be determined according to the water hazard prediction situation to achieve the best prevention and control effect.

[0099] Among them, abnormal areas refer to actual geographical areas that are clearly identified and demarcated based on the analysis of the results of the dynamic water hazard assessment and have significant water hazard risks or potential water hazard threats. These areas are judged to have a higher probability of water hazard occurrence during the comprehensive evaluation process. For example, through the above comprehensive evaluation method, a similar Figure 4 A distribution map of different danger levels is shown, where each level corresponds to a specific level of water hazard risk in an actual geographical area.

[0100] Based on this, in some embodiments, the above method may also include: preemptively treating the abnormal area through preemptive treatment and prevention measures.

[0101] Exemplarily, water hazard prevention and control measures include but are not limited to drainage measures, blocking measures, support measures, and adjustment of mining methods. Specifically, if it is predicted that the amount of water inflow in the mine will increase, measures such as increasing drainage facilities and expanding drainage capacity can be taken to ensure that the water in the mine can be discharged in time. This can reduce the impact of water hazards on mine production; for known fissures or water-conducting channels, grouting, sealants and other materials can be used to block them to prevent groundwater from entering the mine. This can effectively reduce the risk of water hazards and improve the safety of mines; for areas where roof collapse and spalling may occur, support measures can be strengthened, such as adding support structures such as anchor rods and steel arches to ensure the stability and safety of the mining face; according to the actual situation of the mine, the risk of water hazards can be reduced by adjusting the mining sequence and mining methods. For example, measures such as layered mining and leaving waterproof coal pillars are adopted. By formulating corresponding prevention and control measures, after monitoring that corresponding water hazards may occur in abnormal areas, water hazards can be pre-managed based on the established prevention and control measures to prevent the occurrence of corresponding water hazards.

[0102] In some embodiments, after the abnormal area is treated in advance, the method may further include the following steps:

[0103] The basic model for water hazard assessment is optimized according to water hazard perception monitoring data, monitoring results and basic hydrogeological data to obtain an optimized assessment model.

[0104] Understandably, advance control usually includes drainage, reinforcement or other engineering and technical measures in potential water hazard areas to reduce or eliminate water hazard risks. The implementation of these control measures may not only change the hydrogeological conditions of the working face, but also have a profound impact on the stability of the rock formation, the flow path of groundwater, etc.

[0105] In the embodiment of the present invention, after the abnormal area is advanced for treatment, the basic model for water hazard assessment is optimized according to the new water hazard perception monitoring data, monitoring results and updated hydrogeological basic data. Optimizing the basic model for water hazard assessment improves the prediction accuracy in mine water hazard assessment and prediction, so that the model can more accurately reflect the actual situation of mine water hazard. At the same time, the optimization model can adapt to changes in mine conditions, integrate new data and technologies, and thus discover potential water hazard risks. This helps reduce disaster losses, guide mine management to make more informed decisions, and ensure safe production in mines.

[0106] The above method is described below through a specific embodiment.

[0107] Figure 5 FIG. 1 is a flow chart of an embodiment of a method for real-time water hazard assessment of a mine working face and a mine-related area in an embodiment of the present invention, see Figure 5 As shown, the method may include:

[0108] S401, obtaining basic hydrogeological data and geological survey data of the mine;

[0109] S402, performing a basic water hazard evaluation on the hydrogeological basic data and geological exploration data of the mine according to the three-map dual prediction method to obtain a basic water hazard evaluation result for the working face;

[0110] S403, constructing a basic model for water hazard assessment of the working face according to the basic water hazard assessment results;

[0111] S404, determine the location of abnormal water-bearing bodies in the mine by means of geophysical exploration, drilling, etc.;

[0112] S405, draining abnormal water bodies through water exploration and drainage drilling technology;

[0113] S406, obtaining basic hydrogeological data of the mine after drainage;

[0114] S407, modifying the basic model for water hazard assessment using the basic hydrogeological data of the mine after drainage;

[0115] S408, real-time acquisition of working face related water hazard perception monitoring data and monitoring results of the monitoring data;

[0116] S409, using the revised water hazard assessment basic model, forward deduction of dynamic data is performed according to the water hazard perception monitoring data and monitoring results to obtain the water hazard prediction of the mine;

[0117] S410, based on the water hazard prediction situation and the basic model for water hazard assessment, a comprehensive water hazard assessment is performed on the mine to obtain a comprehensive water hazard assessment result for the working face;

[0118] S411, iteratively optimizing the comprehensive evaluation results of water hazards according to the real-time acquired water hazard perception monitoring data and monitoring results, and obtaining a dynamic evaluation result of water hazards at the working face;

[0119] S412, when the water hazard dynamic evaluation result meets the preset water hazard early warning mechanism, corresponding early warning reminders and early warning information push are carried out according to the early warning mechanism;

[0120] S413, generating a working face water hazard assessment report based on the working face water hazard dynamic assessment result;

[0121] S414: Formulate corresponding advanced control and prevention measures based on the water hazard assessment report;

[0122] S415, pre-treat abnormal areas where water damage may occur according to prevention and control measures;

[0123] S416, optimizing the basic model for water hazard assessment through water hazard perception monitoring data, monitoring results and basic hydrogeological data to obtain an optimized assessment model.

[0124] It should be noted that the execution order of the above steps S412 and S413 may not be restricted, that is, while warning of flood disaster prediction is being issued, a flood disaster assessment report may be directly generated, thereby improving the efficiency of flood disaster prevention and control.

[0125] In the embodiment of the present invention, before the working face of the mine is mined, a basic water hazard evaluation is performed on the working face; a basic water hazard evaluation model for the working face is constructed based on the basic water hazard evaluation results; during the excavation process of the working face of the mine, relevant water hazard perception monitoring data and monitoring results of the monitoring data of the working face are obtained in real time; forward deduction is performed based on the water hazard perception monitoring data and the monitoring results to obtain the water hazard prediction of the mine; a comprehensive water hazard evaluation is performed on the mine based on the water hazard prediction and the basic water hazard evaluation model to obtain the comprehensive water hazard evaluation results of the working face; the comprehensive water hazard evaluation results are iteratively optimized based on the real-time acquired water hazard perception monitoring data and monitoring results to obtain the dynamic water hazard evaluation results of the working face. In this way, dynamic monitoring data and monitoring results of water sources and related factors affecting water source changes are collected during the mining process of the mine to predict water hazard, and a comprehensive water hazard evaluation is performed on the working face based on the water hazard prediction and the basic water hazard evaluation model, so that the water hazard evaluation has dynamic and real-time characteristics, and the water hazard prevention and control process is more timely, which improves the efficiency of water hazard prevention and control while improving the accuracy of water hazard evaluation.

[0126] Based on the same inventive concept, an embodiment of the present invention also provides a real-time water hazard assessment system for a mine working face and mine-related areas. Figure 6 FIG. 1 is a schematic diagram of a real-time water hazard assessment system for a mine working face and a mine-related area in an embodiment of the present invention. Figure 6 As shown, the real-time water hazard assessment system 500 for the mine working face and mine-related areas may include: a basic assessment module 501, which is used to conduct a basic water hazard assessment on the working face before the mine working face is mined, based on the mine's hydrogeological basic data and geological exploration data, and obtain the basic water hazard assessment results of the working face; an assessment model construction module 502, which is used to construct a basic water hazard assessment model for the working face based on the basic water hazard assessment results; a data acquisition module 503, which is used to obtain the working face-related water hazard perception monitoring data and the monitoring results of the monitoring data in real time during the production process of the working face; wherein the monitoring results are used to indicate the changes in the monitoring data; the water hazard perception monitoring data includes the hydrogeological data of the working face Monitoring data, microseismic monitoring data of the working face, resistivity monitoring data of the top and bottom plates of the working face, surface settlement and slope displacement data of the working face, and relevant data of the water exploration and release drilling site of the working face; a prediction module 504, used to perform dynamic data forward deduction based on the water hazard perception monitoring data and monitoring results, and obtain the water hazard prediction of the mine; a comprehensive evaluation module 505, used to perform a comprehensive water hazard evaluation on the working face according to the water hazard prediction situation and the basic model for water hazard evaluation, and obtain the comprehensive water hazard evaluation results of the working face; a dynamic evaluation module 506, used to iteratively optimize the comprehensive water hazard evaluation results based on the real-time acquired water hazard perception monitoring data and monitoring results, and obtain the dynamic evaluation results of water hazard on the working face.

[0127] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0128] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the present invention.

Claims

1. A real-time water hazard assessment method for a mine working face and mine-related areas, characterized in that: include: Before the working face of the mine is mined, a basic water hazard evaluation is performed on the working face according to the hydrogeological basic data and geological survey data of the mine to obtain a basic water hazard evaluation result of the working face; According to the water hazard basic evaluation results, a water hazard evaluation basic model for the working face is constructed; specifically, according to the mine hydrogeological basic data and geological exploration data, a water hazard evaluation is performed on the working face through a three-map dual prediction method to obtain a corresponding coal seam roof water-filled aquifer water-richness zoning map and a top layer fracturing safety zoning map; Then, the water-rich zoning map of the coal seam roof aquifer and the top crack safety zoning map are superimposed to obtain a comprehensive zoning map of roof water inrush conditions, and the mining area is divided into five safety level areas, which are used as the basic model for water hazard assessment; the location of abnormal water bodies in the mine is determined; and abnormal water bodies are drained through water exploration and drainage drilling technology; Re-acquire the basic hydrogeological data of the mine after drainage treatment and revise the basic model for water hazard assessment; During the production process of the working face, the water hazard perception monitoring data related to the working face and the monitoring results of the monitoring data are obtained in real time; wherein, the monitoring results are used to indicate the changes of the water hazard perception monitoring data; the water hazard perception monitoring data include the hydrological monitoring data of the working face, the microseismic monitoring data of the working face, the resistivity monitoring data of the top and bottom plates of the working face, the surface settlement and slope displacement data of the working face, the relevant data of the water exploration and release drilling site of the working face, the drilling trajectory of the working face, the dynamic monitoring data of the water-rich abnormal area of ​​the working face, and the dynamic monitoring data of the falling height of the top plate of the working face; the hydrological monitoring data of the working face include the water quality, water level, water inflow and drainage data of the working face; According to the water hazard perception monitoring data and monitoring results, the basic model of water hazard assessment is used for forward deduction and superposition processing to simulate and predict the future changes of the monitoring data; first, the water hazard perception monitoring data from different monitoring equipment are integrated and fused, including the unification of data format and the processing of missing values; secondly, the monitoring results of the monitoring data, that is, the changes in the above-mentioned water hazard perception monitoring data, are analyzed. Among them, the analysis of the hydrological monitoring data of the working face includes observing the real-time changes of water quality, water level, water inflow, and drainage, and identifying abnormal fluctuations or trend changes; the microseismic monitoring data of the working face includes analyzing the frequency, intensity, and location of microseismic events, judging the stability of the rock formation and its correlation with water hazard risks; the resistivity monitoring data analysis of the top and bottom plates of the working face includes evaluating the water content of the top and bottom plate rock formations and their changing trends through changes in resistivity; The data analysis of surface settlement and slope displacement includes monitoring the rate and direction of surface settlement and slope displacement, and analyzing their relationship with groundwater changes; the data analysis of the drilling site for water exploration and drainage at the working face includes evaluating the effect of water exploration and drainage, and observing the changes in hydrogeological conditions around the boreholes; after that, the various monitoring results are comprehensively evaluated, considering the mutual influence and correlation between them, and using the basic model for water hazard evaluation, based on the current and historical water hazard perception monitoring data, the future changes of various monitoring data are forward deduced to generate the predicted value for a period of time in the future; in addition, the predicted results of each single monitoring data are superimposed, among which the predicted results of the water hazard prediction situation at least include the water level change, water inflow change, and distribution of potential danger areas in the mine for a period of time in the future; finally, the predicted results of the water hazard prediction situation are presented in the form of charts, maps or reports; Performing a comprehensive water hazard evaluation on the working face according to the water hazard prediction situation and the water hazard evaluation basic model to obtain a comprehensive water hazard evaluation result of the working face; The comprehensive water hazard evaluation result is iteratively optimized based on the water hazard perception monitoring data and the monitoring results acquired in real time to obtain a dynamic water hazard evaluation result of the working face.

2. The method according to claim 1, characterized in that After obtaining the water hazard dynamic evaluation result of the working face, the method further includes: According to the dynamic evaluation results of water hazards on the working face, multi-level water hazard warnings are automatically triggered and pushed.

3. The method according to claim 2, characterized in that The automatic triggering of multi-level water disaster warning includes: Determine the water hazard warning level corresponding to the water hazard dynamic evaluation result through a preset water hazard warning mechanism, and issue a corresponding level of warning reminder and warning information push; The preset flood warning mechanism includes different flood levels corresponding to the flood dynamic evaluation results and flood warning methods corresponding to the flood levels.

4. The method according to claim 1, characterized in that After obtaining the water hazard dynamic evaluation result of the working face, the method further includes: Based on the dynamic evaluation results of water hazards on the working face, the working face water hazard evaluation report is generated, and corresponding advanced control and prevention measures are formulated for abnormal areas in the mine where water hazards may occur; wherein, the abnormal areas refer to actual geographical areas with water hazard risks or water hazard threats.

5. The method according to claim 4, characterized in that The water hazard assessment report at least includes: the result analysis of the basic water hazard assessment results and the dynamic water hazard assessment results of the working face, and the water hazard prediction of the working face.

6. The method according to claim 5, characterized in that The method further comprises: The abnormal area is proactively managed through the proactive management and prevention measures.

7. The method according to claim 6, characterized in that After the abnormal area is treated in advance, the method further includes: The water hazard assessment basic model is optimized according to the water hazard perception monitoring data, the monitoring results and the hydrogeological basic data to obtain an optimized assessment model.

8. A real-time water hazard assessment system for mine working faces and mine-related areas, characterized in that: include: The basic evaluation module is used to perform a basic water hazard evaluation on the working face of the mine before it is mined, based on the hydrogeological basic data and geological survey data of the mine, to obtain the basic water hazard evaluation result of the working face; An evaluation model building module is used to build a basic model for water hazard evaluation of the working face according to the basic water hazard evaluation results; specifically, based on the mine hydrogeological basic data and geological exploration data, the working face is evaluated for water hazard by a three-map dual prediction method to obtain the corresponding coal seam roof water-filled aquifer water-richness zoning map and top layer fracturing safety zoning map; Then, the water-rich zoning map of the coal seam roof aquifer and the top crack safety zoning map are superimposed to obtain a comprehensive zoning map of roof water inrush conditions, and the mining area is divided into five safety level areas, which are used as the basic model for water hazard assessment; the location of abnormal water bodies in the mine is determined; and abnormal water bodies are drained through water exploration and drainage drilling technology; Re-acquire the basic hydrogeological data of the mine after drainage treatment and revise the basic model for water hazard assessment; A data acquisition module is used to obtain the water hazard perception monitoring data related to the working face and the monitoring results of the monitoring data in real time during the production process of the working face; wherein the monitoring results are used to indicate the changes in the monitoring data; the water hazard perception monitoring data include the hydrological monitoring data of the working face, the microseismic monitoring data of the working face, the resistivity monitoring data of the top and bottom plates of the working face, the surface settlement and slope displacement data of the working face, and the relevant data of the water exploration and release drilling site of the working face; The prediction module is used to simulate and predict the future changes of the monitoring data by forward deduction and superposition processing based on the water hazard perception monitoring data and monitoring results using the basic model of water hazard assessment; first, the water hazard perception monitoring data from different monitoring equipment are integrated and fused, including the unification of data formats and the processing of missing values; second, the monitoring results of the monitoring data, that is, the changes in the above-mentioned water hazard perception monitoring data, among which the analysis of the hydrological monitoring data of the working face includes observing the real-time changes of water quality, water level, water inflow, and drainage, and identifying abnormal fluctuations or trend changes; the microseismic monitoring data of the working face includes analyzing the frequency, intensity, and location of microseismic events, judging the stability of the rock formation and its correlation with water hazard risks; the resistivity monitoring data analysis of the top and bottom plates of the working face includes evaluating the water content of the top and bottom plate rock formations and their changing trends through the changes in resistivity; The data analysis of surface settlement and slope displacement at the working face includes monitoring the rate and direction of surface settlement and slope displacement, and analyzing their relationship with groundwater changes; the data analysis of the water exploration and release drilling site at the working face includes evaluating the effect of water exploration and release, and observing the changes in hydrogeological conditions around the boreholes; after that, the various monitoring results are comprehensively evaluated, considering the mutual influence and correlation between them, and using the basic model of water hazard evaluation, based on the current and historical water hazard perception monitoring data, the future changes of various monitoring data are forward deduced to generate the predicted value for a period of time in the future; in addition, the predicted results of each single monitoring data are superimposed, among which the predicted results of the water hazard prediction situation at least include the water level change, water inflow change, and distribution of potential danger areas in the mine for a period of time in the future; finally, the predicted results of the water hazard prediction situation are presented in the form of charts, maps or reports; A comprehensive evaluation module, used for performing a comprehensive evaluation of water damage on the working face according to the water damage prediction situation and the water damage evaluation basic model, and obtaining a comprehensive evaluation result of water damage on the working face; The dynamic evaluation module is used to iteratively optimize the comprehensive water hazard evaluation result according to the water hazard perception monitoring data and the monitoring results acquired in real time, so as to obtain the dynamic evaluation result of the water hazard of the working face.

Images