Coal mine water flowing fractured zone observation method, device and system and storage medium

Abstract

The invention discloses a coal mine water flowing fractured zone observation method, device and system and a storage medium, and belongs to the technical field of coal mine safety monitoring and early warning. The method comprises the following steps: constructing an initialized transparent geologic model; acquiring historical fracture electrification method data; the initialized transparent geologic model is used for processing historical fracture electrification method data so as to construct a roof water flowing fractured zone virtual mirror image; processing the virtual mirror image of the roof water flowing fractured zone by using a numerical simulation algorithm to obtain simulation monitoring data; obtaining monitoring difference data according to the simulation monitoring data and the electrical method data characteristics corresponding to the early warning threshold; optimizing the initialized transparent geologic model according to the monitoring difference data to obtain a target geologic model; acquiring fracture electrification method data through a drilling electrical method technology; inputting the fracture electrification method data into the target geologic model to obtain monitoring data; judging whether the monitoring data exceed an early warning threshold value or not; and if yes, triggering an early warning mechanism.

Description

Technical Field

[0001] The present application relates to the field of coal mine safety monitoring and early warning technology, and in particular to a method, device, system and storage medium for observing water-conducting fracture zones in coal mines. Background Art

[0002] As global energy demand continues to grow, coal, as an important energy resource, is being mined on an ever-increasing scale. However, frequent roof water inrush accidents have become a major challenge to coal mine safety production.

[0003] In order to deal with the frequent occurrence of water inrush accidents in mine roofs, the existing technology adopts a traditional roof water-conducting fracture zone detection method, which mainly solves the problem of coal mine safety production through drilling geophysical exploration, drilling peek, drilling water injection test and numerical simulation.

[0004] Although the traditional method of detecting water-conducting fracture zones in the roof can solve the problem of safe production in coal mines, it relies too much on manual measurement and data analysis in geological data processing, making it difficult to accurately quantify complex geological information. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a method, device, system and storage medium for observing water-conducting fracture zones in coal mines.

[0006] The technical solution provided in this application is described below: The first aspect of the present application provides a method for observing a water-conducting fracture zone in a coal mine, the method comprising: Construct an initial transparent geological model; Obtain historical fracture electrification data; Processing the historical fracture zone electrical method data using the initialized transparent geological model to construct a virtual mirror image of the roof water-conducting fracture zone; Using a numerical simulation algorithm to process the virtual image of the roof water-conducting fracture zone to obtain simulated monitoring data; Acquire monitoring difference data according to the electrical method data characteristics corresponding to the simulated monitoring data and the early warning threshold; Optimizing the initialized transparent geological model according to the monitoring difference data to obtain a target geological model; Collect fracture zone electrical data through borehole electrical method; Inputting the fracture electrification method data into the target geological model to obtain monitoring data; Determining whether the monitoring data exceeds the warning threshold; If so, the early warning mechanism is triggered; The method of processing the historical fracture zone electrical method data by using the initialized transparent geological model to construct a virtual image of the roof water-conducting fracture zone includes: Spatially registering the historical fracture electrification data with the initialized transparent geological model to obtain the three-dimensional spatial position of the historical fracture electrification data; Processing the three-dimensional spatial position with the initialized transparent geological model to obtain a characteristic representation of electrical data; A virtual image of the roof water-conducting fracture zone is constructed based on the three-dimensional modeling technology and the electrical data characteristics.

[0007] Optionally, the constructing of the initial transparent geological model includes: Obtain geological material information; Digitally processing the geological material information to obtain geological data; Performing spatial coordinate registration on the geological data to obtain registered target geological data; The target geological data is processed using three-dimensional modeling technology to construct an initial transparent geological model.

[0008] Optionally, the method of collecting fracture zone electrical data by using a borehole electrical method technique includes: Set the drilling position according to the requirements for coal mine roof fracture zone detection; Using an electrical method instrument to set an electrical method probe device in the drilling position; Performing grouting and sealing the borehole at the position of the borehole to obtain a borehole measurement environment; The electrical method probe device is started according to the borehole measurement environment to obtain fracture zone electrical method data.

[0009] Optionally, inputting the fracture electrical method data into the target geological model to obtain monitoring data includes: Using F5G slicing technology to allocate a dedicated network channel for the fracture electrification method data; Processing the fracture charging method data to obtain fracture charging method compressed data; Performing data verification and optimization on the fracture electrification method compression data to obtain target fracture electrification method data; The target fracture electrical data is input into the target geological model through the dedicated network channel to obtain monitoring data.

[0010] Optionally, the acquiring of monitoring difference data according to electrical method data features corresponding to the simulated monitoring data and the early warning threshold value includes: Acquire monitoring difference data according to the electrical method data characteristics corresponding to the simulated monitoring data and the early warning threshold; The difference data is calculated by the first formula: ; in, represents the simulated monitoring data, Indicates the electrical data characteristics corresponding to the warning threshold, Indicates monitoring difference data, Indicates the warning threshold range.

[0011] Optionally, optimizing the initialized transparent geological model according to the monitoring difference data to obtain a target geological model includes: The monitoring difference data is processed by the second formula to obtain the parameter adjustment value: ; in, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating, Indicates monitoring difference data, Representation parameters Update the scale factor; The parameter adjustment value is processed by the third formula to obtain an updated geological model parameter value: ; in, represents the updated geological model parameter value, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating; The initialized transparent geological model is optimized according to the updated geological model parameter values ​​to obtain a target geological model.

[0012] A second aspect of the present application provides a coal mine water-conducting fracture zone observation system, the system comprising: A first construction unit is used to construct an initial transparent geological model; A first acquisition unit is used to acquire historical fracture electrification method data; A second construction unit is used to process the historical fracture zone electrical method data using the initialized transparent geological model to construct a virtual image of the roof water-conducting fracture zone; A first processing unit is used to process the virtual image of the roof water-conducting fracture zone using a numerical simulation algorithm to obtain simulated monitoring data; A second processing unit, configured to obtain monitoring difference data according to the electrical method data features corresponding to the simulated monitoring data and the early warning threshold; A third processing unit is used to optimize the initialized transparent geological model according to the monitoring difference data to obtain a target geological model; The second acquisition unit is used to collect fracture zone electrical method data by using the borehole electrical method technology; The fourth processing unit is used to input the fracture electrification method data into the target geological model to obtain monitoring data. A judging unit, used to judge whether the monitoring data exceeds the warning threshold; An early warning triggering unit, configured to trigger an early warning mechanism when the judgment unit determines that the monitoring data exceeds the early warning threshold; The second building block is specifically used for: Spatially registering the historical fracture electrification data with the initialized transparent geological model to obtain the three-dimensional spatial position of the historical fracture electrification data; Processing the three-dimensional spatial position with the initialized transparent geological model to obtain a characteristic representation of electrical data; A virtual image of the roof water-conducting fracture zone is constructed based on the three-dimensional modeling technology and the electrical data characteristics.

[0013] A third aspect of the present application provides a coal mine water-conducting fracture zone observation device, the device comprising: Processor, memory, input-output unit, and bus; The processor is connected to the memory, the input and output unit, and the bus; The memory stores a program, and the processor calls the program to execute the first aspect and any optional method in the first aspect.

[0014] A fourth aspect of the present application provides a computer-readable storage medium, on which a program is stored. When the program is executed on a computer, the program executes the first aspect and any optional method in the first aspect.

[0015] It can be seen from the above technical solutions that this application has the following advantages: This application provides an intuitive framework for the integration of geological information by constructing an initialized transparent geological model. Then, the historical fracture zone electrical method data is processed using the initialized transparent geological model to construct a virtual mirror image of the roof water-conducting fracture zone, so that the geological structure can be clearer and more visible, providing an intuitive and visual means for coal mine safety monitoring, which is helpful for the subsequent timely discovery and handling of safety hazards. Then, by using a numerical simulation algorithm to process the virtual mirror image of the roof water-conducting fracture zone, the simulated monitoring data can be obtained, and the trend of changes in the status of the roof water-conducting fracture zone can be discovered in advance, effectively reflecting the defects of the actual situation of the coal mine roof water-conducting fracture zone. Further, by analyzing and comparing the simulated monitoring data with the early warning threshold, and optimizing the transparent geological model based on the monitoring difference data obtained by comparison, the transparent geological model can continuously approach the real geological situation, enhancing the reliability and adaptability of the geological model. Furthermore, by collecting real-time fracture zone electrical data through borehole electrical method and inputting the target geological model to obtain monitoring data, real-time dynamic monitoring of the water-conducting fracture zone of the coal mine roof can be realized, and the changes in the roof state can be grasped in time. Compared with the traditional data collection method that relies on manual labor, the monitoring efficiency is greatly improved. Finally, by judging whether the monitoring data exceeds the warning threshold, potential geological disaster risks can be discovered in time. Once the warning mechanism is triggered, countermeasures can be taken quickly to reduce the risk of casualties and property losses, and intelligent coal mine safety production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution in the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A flow chart of an embodiment of a method for observing water-conducting fracture zones in coal mines provided in this application; Figure 2 A flow chart of another embodiment of the method for observing water-conducting fracture zones in coal mines provided by the present application; Figure 3 A flow chart of another embodiment of the method for observing water-conducting fracture zones in coal mines provided by the present application; Figure 4 A flow chart of another embodiment of the method for observing water-conducting fracture zones in coal mines provided by the present application; Figure 5 A flow chart of an embodiment of a coal mine water-conducting fracture zone observation system provided in this application; Figure 6 A flow chart of an embodiment of a coal mine water-conducting fracture zone observation device provided in this application. DETAILED DESCRIPTION

[0018] It should be noted that the coal mine water-conducting fracture zone observation method provided in this application can be applied to a terminal, a system, or a server. For example, the terminal can be a smart phone or a computer, a tablet computer, a smart TV, a smart watch, a portable computer terminal, or a fixed terminal such as a desktop computer. For the convenience of explanation, this application uses the terminal as an example for explanation.

[0019] See also Figure 1 The present application first provides an embodiment of a method for observing a water-conducting fracture zone in a coal mine, the embodiment comprising: S101, constructing an initial transparent geological model; In this embodiment, the geological model is a digital model constructed based on multi-source geological data, which is used to describe features such as stratigraphic structure, lithology distribution, and geological structure, so as to visualize the internal information of the geological body.

[0020] When constructing a transparent geological model, geological data collection is first carried out to collect multi-source geological data such as stratigraphic structure, lithology distribution, and hydrogeological conditions. Then, the geological data is digitally converted using OCR technology and image processing technology to obtain the digital format of geological data. Then, GIS technology is used to perform spatial coordinate registration of the digital format of geological data, combining geological data with actual conditions to ensure the accuracy and consistency of geological data. Furthermore, a stratigraphic framework model is constructed using three-dimensional modeling software and a surface-based modeling method to depict the top and bottom surface morphology and contact relationship of each rock layer and key geological structures such as faults and folds. Finally, physical parameters are assigned to the stratigraphic framework model based on the rock physical property data to obtain an initialized transparent geological model.

[0021] S102, obtaining historical fracture charging method data; In this embodiment, the fracture zone electrical data refers to the data related to the rock fracture zone obtained by drilling electrical detection technology in geological environment monitoring such as coal mines, mainly including resistivity, potential, etc., which can reflect the electrical properties of the rock mass.

[0022] When obtaining historical fracture zone electrical data, we first screened them according to the time span, the specific location of the borehole, and the specific types of electrical measurement parameters, such as resistivity and potential, and extracted electrical data closely related to the roof water-conducting fracture zone from a large amount of historical coal mine data. Then, we conducted quality checks on these screened electrical data, identified abnormal data, and eliminated data. Finally, we obtained a batch of historical fracture zone electrical data for subsequent training to initialize the transparent geological model.

[0023] S103, using the initialized transparent geological model to process the historical fracture zone electrical method data to construct a virtual mirror image of the roof water-conducting fracture zone; In this embodiment, the virtual mirror of the roof water-conducting fracture zone is a digital presentation of the geological conditions of the roof water-conducting fracture zone, which can reflect the dynamic changes of the roof water-conducting fracture zone in real time, provide key basis for safe production and rational mining of coal mines, and effectively prevent water inrush accidents.

[0024] When constructing the virtual image of the water-conducting fracture zone of the roof, first, the electrical data of the historical fracture zone is matched with the initialized transparent geological model, and the parameters such as resistivity and potential in the electrical data are matched to the corresponding stratigraphic positions in the initialized transparent geological model according to the borehole location information. Then, based on the relationship between rock physical properties and electrical parameters, the electrical data of the historical fracture zone is converted into parameters reflecting the characteristics of the water-conducting fracture zone of the roof, including the width, length, strike, density and water content of the fractures. Finally, these parameters of the characteristics of the water-conducting fracture zone of the roof are integrated into the initialized transparent geological model, and the fracture zone in the model is intuitively presented using three-dimensional visualization technology, so that the virtual image of the water-conducting fracture zone of the roof can be constructed.

[0025] Specifically, a possible implementation of this step includes: Step 1: spatially registering the historical fracture electrification data with the initialized transparent geological model to obtain the three-dimensional spatial position of the historical fracture electrification data; In this embodiment, when obtaining the three-dimensional spatial position of the historical fracture electrification method data, it is necessary to pre-process the historical fracture electrification method data, including the standardized conversion of the data format, to ensure that it is compatible with the data format of the initialized transparent geological model. Then, using a registration algorithm based on feature points or feature surfaces, representative geological features such as obvious stratigraphic interfaces, fault lines, etc. are extracted from the historical fracture electrification method data and the initialized transparent geological model. Then, by calculating the geometric transformation relationship between these geological features, including translation, rotation and scaling parameters, the historical fracture electrification method data is accurately mapped to the three-dimensional spatial coordinate system of the initialized transparent geological model, and the three-dimensional spatial position of the historical fracture electrification method data can be obtained.

[0026] Step 2: Processing the three-dimensional spatial position and the initialized transparent geological model to obtain a characteristic representation of electrical data; In this embodiment, when obtaining the characteristic representation of electrical data, it is necessary to use a data interpolation algorithm to spatially refine and expand the electrical data based on the geological model information around the three-dimensional spatial position. Then, through statistical analysis, the statistical quantities such as the mean value, variance, and gradient of the fused data in different regions are calculated. At the same time, in combination with the electrical properties of the geological body, the electrical data is associated with the rock type and stratigraphic structure information to form a characteristic representation of electrical data that can intuitively reflect the geological characteristics and physical properties of the roof water-conducting fracture zone.

[0027] Step 3: construct a virtual image of the roof water-conducting fracture zone based on the three-dimensional modeling technology and the electrical data characteristics.

[0028] In this embodiment, when constructing the virtual image of the roof water-conducting fracture zone, it is necessary to preliminarily outline the general outline of the roof water-conducting fracture zone according to the characteristics of the low resistivity abnormal area and other features presented by the electrical data, and determine its distribution range and trend in three-dimensional space. Then, using methods such as triangulation meshing, the characteristics of the electrical data are converted into a specific three-dimensional geometric structure, and the basic framework of the virtual image of the roof water-conducting fracture zone is accurately constructed. Further, according to the parameters obtained from the principles of geomechanics and rock physics experiments, the constructed basic framework is given real permeability, porosity and other properties to make it consistent with the actual geological conditions. In addition, with reference to geological data and rock physics attribute data, the fracture zone in the model is given corresponding physical property parameters, including permeability, porosity, etc., to enhance the authenticity of the model. Finally, through the simulation algorithm, combined with the laws of geological evolution, the constructed virtual image is dynamically simulated and repeatedly verified and optimized to obtain the virtual image of the roof water-conducting fracture zone.

[0029] In this implementation, the historical fracture zone electrical data is spatially registered with the initialized transparent geological model to obtain the three-dimensional spatial position of the historical fracture zone electrical data, which effectively avoids analysis errors caused by position deviation and improves the accuracy of the position judgment of the roof fracture zone. Then, the three-dimensional spatial position is fused and extracted with the initialized transparent geological model to obtain the characteristic representation of the electrical data, which can more clearly show the relationship between the electrical characteristics of the geological body and the geological structure, and help to gain a deeper understanding of the formation mechanism of the roof water-conducting fracture zone. Furthermore, a virtual mirror image of the roof water-conducting fracture zone is constructed based on the three-dimensional modeling technology and the characteristics of the electrical data, which can visualize the morphology, direction and physical properties of the roof water-conducting fracture zone, and provide a guarantee for reducing the safety risks in the mining process and improving the efficiency and safety of coal resource mining.

[0030] S104, using a numerical simulation algorithm to process the virtual image of the roof water-conducting fracture zone to obtain simulated monitoring data; In this embodiment, the numerical simulation algorithm is a computational method that uses mathematical models and computer technology to simulate physical phenomena or processes. In the study of water-conducting fracture zones in coal mine roofs, it is a means of obtaining system evolution information by establishing mathematical physics equations and solving these equations in a numerical calculation manner. Its principle is to discretize continuous physical space and time and transform complex practical problems into discrete numerical problems that can be processed by computers.

[0031] When obtaining simulation monitoring data, it is necessary to select a suitable numerical simulation algorithm. Taking the finite difference method as an example, the virtual image of the roof water-conducting fracture zone is imported into an adapted numerical simulation software environment. Then, according to the actual geological conditions of the coal mine site, such as the lithological distribution of the strata, structural characteristics and the layout of the mining operations, the boundary conditions of the numerical simulation software environment are set. Next, the time step is determined according to the stability requirements of the finite difference method, and the simulation duration is set in combination with the research purpose. The virtual image of the roof water-conducting fracture zone is then meshed, and the mesh is refined in the fracture zone and its surroundings to improve accuracy. Finally, the simulation calculation is started, and the finite difference method is used to approximate the solution of the seepage and mechanical equations. The simulated monitoring data such as stress, deformation, and pore water pressure of the roof water-conducting fracture zone are obtained through iterative calculations, and output in a visual form. S105, acquiring monitoring difference data according to the electrical method data characteristics corresponding to the simulated monitoring data and the early warning threshold; In this embodiment, the warning threshold is determined based on the safety standards of the coal mine roof and previous engineering experience, combined with the statistical analysis of the simulated monitoring data and the electrical data. The electrical data feature refers to the specific properties of the electrical data related to the warning situation during the monitoring of the water-conducting fracture zone in the coal mine roof.

[0032] When obtaining monitoring difference data, it is first necessary to clarify the various parameters in the simulated monitoring data, such as the stress, deformation, pore water pressure and other data of the roof water-conducting fracture zone, as well as the electrical data characteristics corresponding to the warning threshold, including the range and change trend of key electrical parameters such as resistivity and potential. Then, analyze and compare the simulated monitoring data with the warning threshold. Furthermore, calculate the difference between the simulated monitoring data and the warning threshold to obtain monitoring difference data that can reflect the degree of deviation between the actual situation and the potential risk state. The difference data is calculated by the first formula: ; in, represents the simulated monitoring data, Indicates the electrical data characteristics corresponding to the warning threshold, Indicates monitoring difference data, Indicates the warning threshold range.

[0033] S106, optimizing the initialized transparent geological model according to the monitoring difference data to obtain a target geological model; In this embodiment, when obtaining the target geological model, the monitoring difference data needs to be processed by the second formula to obtain the parameter adjustment value: ; in, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating, Indicates monitoring difference data, Representation parameters Update the scale factor; Next, the parameter adjustment value is processed by the third formula to obtain an updated geological model parameter value: ; in, represents the updated geological model parameter value, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating; Finally, the initialized transparent geological model is optimized according to the updated geological model parameter values ​​to obtain a target geological model.

[0034] The initialized transparent geological model is optimized according to the updated geological model parameter values ​​to obtain a target geological model.

[0035] S107, collecting fracture zone electrical method data by using borehole electrical method technology; In this embodiment, the borehole electrical method is a technology that forms an electric field around the borehole by placing electrodes in the borehole and supplying a stable current into the underground. It is used to measure electrical parameters such as potential and resistivity at different locations in the borehole, and infer the distribution of the geological body based on the changing characteristics of these parameters.

[0036] When collecting fracture zone electrical data, first determine the drilling layout reasonably at the key position of the roof according to the geological data of the coal mine and the mining plan, and clarify the number, spacing, depth and angle of the drilling holes to ensure that the water-conducting fracture zone of the roof can be effectively detected. Then, use professional drilling equipment for construction, strictly control the verticality and aperture of the drilling hole, prevent the hole from collapsing and damage to the hole wall, and do a good job of protecting the wall of the drilling hole to ensure the smooth progress of subsequent detection. Furthermore, after the drilling is completed, the pre-calibrated electrical probe is slowly placed into the borehole through the cable to ensure that the probe reaches the predetermined detection depth and is in close contact with the hole wall to obtain accurate electrical signals. Finally, use high-precision electrical measuring instruments to collect electrical data at different positions in the borehole according to the set measurement parameters, such as current and voltage of different frequencies, to obtain fracture zone electrical data.

[0037] S108, inputting the fracture electrification method data into the target geological model to obtain monitoring data; In this embodiment, when acquiring monitoring data, it is necessary to slice and compress the collected fracture electrification data so that the collected fracture electrification data matches the data interface of the target geological model. Then, the processed fracture electrification data is imported into the target geological model. Furthermore, the target geological model uses professional numerical calculation methods and algorithms, such as inversion algorithms based on electrical principles and geostatistics, to fuse and analyze the data based on built-in geological structure, rock physical properties and other parameter information, combined with the input fracture electrification data, to obtain monitoring data such as the development of the roof water-conducting fracture zone and the water conductivity of the fracture.

[0038] S109, determining whether the monitoring data exceeds the warning threshold; In this embodiment, when judging whether the monitoring data exceeds the warning threshold, the currently acquired monitoring data will be compared with the corresponding warning threshold one by one. When the monitoring data is greater than the set warning threshold, it indicates that the state of the roof water-conducting fracture zone may be abnormal, and there is a situation where the safety risk such as water inrush or roof collapse is aggravated, and the system executes step S110. When the monitoring data does not exceed the warning threshold, it indicates that the roof water-conducting fracture zone is currently in a relatively stable and safe state, and the system will continue to operate normally and continue to collect and update the fracture zone electrical method data according to the established time intervals and program requirements.

[0039] S110. Triggering the early warning mechanism.

[0040] In this embodiment, when the monitoring data exceeds the warning threshold, the warning mechanism will be triggered immediately. Then the warning mechanism will determine the level of this warning, such as slight, moderate, severe, etc., according to the correspondence between the preset alarm level and the degree of data exceeding the limit. Furthermore, through a variety of communication channels, including but not limited to SMS group sending, sound and light alarm devices and voice notification systems, detailed warning information is sent to relevant managers, front-line operators and safety supervision departments of the coal mine to inform them of abnormal conditions in the water-conducting fracture zone of the roof and the possible risks of water inrush or roof collapse. At the same time, emergency plans are activated, such as suspending mining operations, organizing personnel to evacuate dangerous areas, strengthening roof support and drainage preparations, etc., to minimize the possibility and degree of harm of safety accidents.

[0041] In this embodiment, the present application provides an intuitive framework for the integration of geological information by constructing an initialized transparent geological model. Then, the historical fracture zone electrical method data is processed using the initialized transparent geological model to construct a virtual mirror image of the roof water-conducting fracture zone, so that the geological structure can be more clear and visible, providing an intuitive and visual means for coal mine safety monitoring, which is helpful for the subsequent timely discovery and treatment of safety hazards. Then, by using a numerical simulation algorithm to process the virtual mirror image of the roof water-conducting fracture zone, the simulated monitoring data can be obtained, and the trend of changes in the status of the roof water-conducting fracture zone can be discovered in advance, effectively reflecting the defects of the actual situation of the coal mine roof water-conducting fracture zone. Further, by analyzing and comparing the simulated monitoring data with the early warning threshold, and optimizing the transparent geological model based on the monitoring difference data obtained by comparison, the transparent geological model can be continuously approached to the real geological situation, thereby enhancing the reliability and adaptability of the geological model. Furthermore, by collecting real-time fracture zone electrical data through borehole electrical method and inputting the target geological model to obtain monitoring data, real-time dynamic monitoring of the water-conducting fracture zone of the coal mine roof can be realized, and the changes in the roof state can be grasped in time. Compared with the traditional data collection method that relies on manual labor, the monitoring efficiency is greatly improved. Finally, by judging whether the monitoring data exceeds the warning threshold, potential geological disaster risks can be discovered in time. Once the warning mechanism is triggered, countermeasures can be taken quickly to reduce the risk of casualties and property losses, and intelligent coal mine safety production.

[0042] See also Figure 2 , Figure 2 Another embodiment of a method for observing a water-conducting fracture zone in a coal mine provided by the present application includes: S201, obtaining geological material information; In this embodiment, the geological material information mainly consists of geological information such as stratum structure, lithology distribution, and hydrogeological conditions.

[0043] When obtaining geological material information, first of all, for the stratigraphic structure information, detailed geological profiles and planes are drawn through geological mapping methods, marking the interface, thickness, occurrence and other information of different strata. Then, the drilling core data is used to further determine the accurate stratification of the strata and the specific characteristics of each layer. Next, for the lithology distribution, the outcrops of the rocks are observed in the field, and the rock color, texture, hardness and other appearance characteristics are combined for preliminary judgment. The type of rock and its distribution range are accurately determined through thin section identification under a microscope and various rock physical and chemical property tests. Further, in terms of obtaining hydrogeological conditions, hydrogeological surveys are carried out to measure parameters such as groundwater level, water flow direction and flow rate, analyze the distribution and properties of aquifers and impermeable layers, and determine the recharge, runoff and discharge paths of groundwater. Finally, the stratigraphic structure, lithology distribution and hydrogeological conditions information are collected to obtain the geological material information of the coal mine area.

[0044] S202, digitally processing the geological material information to obtain geological data; In this embodiment, when obtaining geological data, the collected geological material information is first converted into a digital image format through a scanning device, and then the digital image is processed using image processing technology, such as using a filtering algorithm to remove noise generated during the scanning process, and then using an image enhancement algorithm to highlight key information such as stratigraphic structure and lithological characteristics to improve image clarity and readability. Furthermore, OCR technology is used to identify text information in the image, convert it into editable text data, and organize and classify it according to a preset geological data format, and finally accurate geological data can be obtained.

[0045] S203, performing spatial coordinate registration on the geological data to obtain registered target geological data; In this embodiment, when obtaining the registered target geological data, it is necessary to import the digitally processed geological data into a professional GIS software platform, and then determine the control point data obtained by precise field measurement of the study area. These control points have clear and accurate spatial coordinate information. Then, in the GIS software operation interface, use specific coordinate conversion tools to build a coordinate conversion relationship based on the control points, and accurately map the original coordinate system of the geological data to the target spatial coordinate system. Furthermore, use data quality inspection tools to continuously verify the accuracy and consistency of the geological data, and correct deviations in a timely manner. Finally, the registered target geological data can be obtained.

[0046] S204: Process the target geological data using three-dimensional modeling technology to construct an initialized transparent geological model.

[0047] In this embodiment, the three-dimensional modeling technology is a technology that uses computer software to construct and represent information such as the geometric shape, appearance attributes, etc. of objects or scenes in the real world in the form of three-dimensional data.

[0048] When constructing an initial transparent geological model, first create basic geometric shapes in the 3D modeling software based on the stratigraphic distribution, lithological characteristics and structural information in the target geological data, such as polygonal patches representing different strata, and accurately locate their spatial positions through the coordinate values ​​in the data to construct a preliminary geological structure framework. Then, assign specific materials and colors to each part according to the lithology and other attributes, and use transparency settings to make the model transparent for easy observation of the internal structure. Furthermore, interpolation calculations are performed on the target geological data, data gaps are filled, and model details are improved to construct an initial transparent geological model that can accurately reflect the spatial morphology and attribute characteristics of the geological body.

[0049] In this embodiment, by acquiring geological material information and performing digital conversion, the geological material information is converted into computable and analyzable geological data, which improves the availability of geological data and lays the foundation for subsequent transparent geological model training. Next, by performing spatial coordinate registration of geological data, the accuracy and consistency of geological data are ensured, and the registered target geological data has precise positioning in three-dimensional space, providing a reliable spatial reference framework for constructing an initialized transparent geological model. Furthermore, based on the initialized transparent geological model constructed by the target geological data, the initialized transparent geological model intuitively displays key information such as geological structure and rock layer distribution, providing a tool for subsequent analysis, simulation and prediction of coal mine geology.

[0050] See also Figure 3 , Figure 3 Another embodiment of a method for observing a water-conducting fracture zone in a coal mine provided by the present application includes: S301. Set the drilling position according to the requirements for detecting the fracture zone in the coal mine roof; In this embodiment, when setting the drilling position, it is necessary to collect detailed geological data of the coal mine, including information such as stratigraphic structure, lithology distribution, geological structure (such as faults, folds, etc.) and previous mining conditions. Then, these geological data are analyzed and processed to determine the possible development area and potential trend of the roof fracture zone. Then, according to the possible development area and potential trend, combined with the mining plan of the coal mine and the actual situation on site, the layout and key parameters of the drilling holes, such as the spacing, angle, depth, etc. of the drilling holes, are determined to ensure that the target area can be effectively detected. Further, the geodesy technicians use high-precision measuring instruments to open holes and drill according to the target area, fix the aperture to 75mm, and drill according to the established parameters. Further, when drilling about 10m, install a 7m casing and lock the mouth, and strengthen the stability of the hole wall by grouting and sealing to prevent collapse. Finally, after the grouting is fully solidified, reopen the lock mouth to sweep the hole and continue drilling. If a broken zone or abnormal water discharge is encountered during the process, grouting treatment is carried out in time, and it is restored to normal before advancing. At the same time, the entire drilling process is strictly operated according to the parameters, and the inclination is measured regularly to correct the drilling direction in real time. After the drilling is completed, the inclination is measured again to confirm the accuracy of the final hole position, so as to obtain the accurate two-point drilling position.

[0051] S302, using an electrical method instrument to set an electrical method probe device in the drilling position; In this embodiment, the electrical instrument is a device used for electrical detection in geophysical exploration. It obtains geological information by sending and receiving electrical signals to underground media. For example, it can transmit current and measure potential difference or resistivity, and use the difference in conductivity of different rocks and ores to detect the distribution, structure and groundwater conditions of geological bodies. It is an important tool in the fields of geological exploration. The electrical probe device can transmit electrical signals to the geological body. The signal changes during the propagation process due to the difference in conductivity of the geological body. The probe can receive these changed signals. Based on this, the electrical instrument can obtain electrical data reflecting the geological structure, rock characteristics and crack distribution, etc., to assist geological exploration and analysis.

[0052] When setting up the electrical method probe device, it is necessary to prepare the appropriate electrical method probe and transmission cable after the borehole position is determined and the inclination measurement results meet the requirements. The connection parts of the electrical method probe and the cable are carefully processed, and professional waterproof tape and insulating materials are used to ensure the stability and sealing of the connection to prevent water ingress and leakage from affecting signal transmission. Next, fix the connected electrical method probe on a special lowering device, start the lowering operation, and lower the probe along the borehole at a slow and steady speed. During the process, pay close attention to the lowering depth until it reaches the predetermined depth. At the same time, by slightly adjusting the lowering device, the probe is tightly fitted to the hole wall, and the electrical method probe device can be set in the borehole position.

[0053] S303, performing grouting and sealing on the drilling position to obtain a drilling measurement environment; In this embodiment, when obtaining the borehole measurement environment, it is necessary to ensure that the electrical probe has been set in the borehole as required, and then prepare cement-based or chemical grouting materials according to the characteristics of the borehole to ensure that it can effectively fill the pores and has stability and insulation after solidification. Then, after flushing the borehole, start the grouting pump to slowly inject material from the bottom, and simultaneously lift the grouting pipe to evenly distribute the material in the hole, accurately control the grouting pressure and speed, and prevent excessive pressure from damaging the hole wall or excessive speed from causing uneven filling. Furthermore, continue grouting until the orifice overflows, and then wait for the grouting material to solidify, thereby forming a closed, isolated drilling measurement environment from external interference.

[0054] S304, starting the electrical method probe device according to the borehole measurement environment to obtain fracture zone electrical method data.

[0055] In this embodiment, after the borehole is sealed by grouting to form a stable borehole measurement environment, the electrical instrument is connected to the installed electrical probe device. And according to the detection target and geological conditions, set appropriate parameters on the electrical instrument, including current intensity, frequency range, etc. After starting the instrument, the electrical probe transmits electrical signals to the surrounding geological bodies. These signals will change due to differences in rock conductivity when passing through the roof fracture zone. The electrical probe device then receives the reflected or refracted electrical signals and collects, amplifies, filters and converts these signals, converting them into electrical data of the fracture zone such as apparent resistivity that can reflect the characteristics of the fracture zone.

[0056] In this embodiment, by combining the drilling position with the electrical detection technology, the key information such as the distribution, direction and development status of the roof fracture zone can be accurately determined, so as to optimize the mining plan in a targeted manner, avoid accidents such as roof collapse caused by blind mining, and effectively ensure the safety of personnel and stable operation of equipment. Then, by starting the electrical probe device according to the drilling measurement environment, the electrical data of the fracture zone is obtained, which provides a data basis for the subsequent prediction of possible geological disasters such as water inrush and gas leakage.

[0057] See also Figure 4 , Figure 4 Another embodiment of a method for observing a water-conducting fracture zone in a coal mine provided by the present application includes: S401, using F5G slicing technology to allocate a dedicated network channel for the fracture charging method data; In this embodiment, F5G slicing technology can open up dedicated network resources for crack live-line method data and create independent slices through logical isolation. Bandwidth can be finely configured according to data requirements to reduce transmission delays and avoid data problems caused by network congestion. This ensures stable and fast data transmission and ensures efficient processing and utilization of coal mine roof crack detection data.

[0058] When allocating dedicated network channels, it is necessary to conduct a comprehensive assessment of the network architecture within the coal mine, including parameters such as the existing network bandwidth, transmission delay, and reliability, to determine the basic network resource channels that can be allocated to the fracture electrification method data transmission. Next, the fifth-generation fixed network equipment is deployed, and through network slicing technology, an independent, logically isolated network slice is created according to the transmission requirements of the fracture electrification method data. Furthermore, the slice is finely configured, and an exclusive bandwidth resource channel is set to ensure stable and fast data transmission during peak data transmission periods, and the dedicated network channel allocation can be completed.

[0059] S402, processing the fracture charging method data to obtain fracture charging method compressed data; In this embodiment, when obtaining the compressed data of the fracture charging method, it is necessary to use a data compression algorithm to compress the fracture charging method data, wherein the data compression algorithm is used to remove redundant information in the fracture charging method data, reduce the storage space of the data, and reduce the transmission bandwidth requirement without losing key geological feature information, making data transmission and storage more efficient.

[0060] S403, performing data verification optimization on the fracture electrification method compression data to obtain target fracture electrification method data; In this embodiment, for the crack electrification method compressed data, a specific data verification algorithm is used to calculate its verification value at each key node of data transmission and compare it with the pre-stored standard verification value. If the verification is found to be mismatched, it means that the data may be erroneous or lost. At this time, the error correction program is started. For minor errors, redundant data or interpolation algorithms are used to repair them; for serious problems, the data source is traced back to retrieve them again. Through continuous verification and error correction, the integrity and accuracy of the data are ensured, and finally reliable target crack electrification method data is obtained.

[0061] S404, inputting the target fracture electrical method data into the target geological model through the dedicated network channel to obtain monitoring data.

[0062] In this embodiment, when acquiring monitoring data, it is necessary to ensure that the target fracture electrical data is input from the electrical probe device of the borehole measurement environment to the target geological model for calculation according to the dedicated network channel. Then, the target geological model combines the input target fracture electrical data with the built-in geological structure, rock physical properties and other parameter information, and uses numerical calculation methods, such as inversion algorithms based on electrical principles and geostatistics, to fuse and analyze the target fracture electrical data, and thus obtain monitoring data such as the development of the roof water-conducting fracture zone and the fracture water conductivity.

[0063] In this embodiment, by using F5G slicing technology to allocate dedicated network channels, high-speed and stable transmission of fracture electrification method data is guaranteed, avoiding data delays or losses caused by network congestion. Then, by compressing the fracture electrification method data, the storage space and transmission bandwidth requirements are greatly reduced, and the data storage and transmission efficiency is improved. Furthermore, by optimizing the data verification of the fracture electrification method compressed data, the accuracy and integrity of the data are ensured, providing reliable support for the analysis of coal mine roof conditions. Finally, the target fracture electrification method data is input into the target geological model through a dedicated network channel to obtain monitoring data, so that the system can grasp the dynamic changes of the roof fracture zone in real time, which helps to take disaster prevention measures in advance, improve the safety and production efficiency of coal mining, and ensure the safety of personnel and the economic benefits of the enterprise.

[0064] See also Figure 5 The present application also provides a coal mine water-conducting fracture zone observation system, the system comprising: The first construction unit 501 is used to construct an initial transparent geological model; A first acquisition unit 502 is used to acquire historical fracture electrification method data; A second construction unit 503 is used to process the historical fracture zone electrical method data using the initialized transparent geological model to construct a virtual image of the roof water-conducting fracture zone; A first processing unit 504 is used to process the virtual image of the roof water-conducting fracture zone using a numerical simulation algorithm to obtain simulated monitoring data; The second processing unit 505 is used to obtain monitoring difference data according to the electrical method data characteristics corresponding to the simulated monitoring data and the early warning threshold; A third processing unit 506 is used to optimize the initialized transparent geological model according to the monitoring difference data to obtain a target geological model; The second acquisition unit 507 is used to collect fracture zone electrical method data by using the borehole electrical method technology; The fourth processing unit 508 is used to input the fracture electrical method data into the target geological model to obtain monitoring data. A judging unit 509 is used to judge whether the monitoring data exceeds the warning threshold; The early warning triggering unit 510 is used to trigger an early warning mechanism when the judgment unit determines that the monitoring data exceeds the early warning threshold.

[0065] Optionally, the first construction unit 501 is further used for: Obtain geological material information; Digitally processing the geological material information to obtain geological data; Performing spatial coordinate registration on the geological data to obtain registered target geological data; The target geological data is processed using three-dimensional modeling technology to construct an initial transparent geological model.

[0066] Optionally, the second obtaining unit 507 is further configured to: Set the drilling position according to the requirements for coal mine roof fracture zone detection; Using an electrical method instrument to set an electrical method probe device in the drilling position; Performing grouting and sealing the borehole at the position of the borehole to obtain a borehole measurement environment; The electrical method probe device is started according to the borehole measurement environment to obtain fracture zone electrical method data.

[0067] Optionally, the fourth processing unit 508 is further configured to: Using F5G slicing technology to allocate a dedicated network channel for the fracture electrification method data; Processing the fracture charging method data to obtain fracture charging method compressed data; Performing data verification and optimization on the fracture electrification method compression data to obtain target fracture electrification method data; The target fracture electrical data is input into the target geological model through the dedicated network channel to obtain monitoring data.

[0068] Optionally, the second processing unit 505 is further configured to: Acquire monitoring difference data according to the electrical method data characteristics corresponding to the simulated monitoring data and the early warning threshold; The difference data is calculated by the first formula: ; in, represents the simulated monitoring data, Indicates the electrical data characteristics corresponding to the warning threshold, Indicates monitoring difference data, Indicates the warning threshold range.

[0069] Optionally, the third processing unit 506 is further configured to: The monitoring difference data is processed by the second formula to obtain the parameter adjustment value: ; in, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating, Indicates monitoring difference data, Representation parameters Update the scale factor; The parameter adjustment value is processed by the third formula to obtain an updated geological model parameter value: ; in, represents the updated geological model parameter value, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating; The initialized transparent geological model is optimized according to the updated geological model parameter values ​​to obtain a target geological model.

[0070] Optionally, the second building block is specifically used for: Spatially registering the historical fracture electrification data with the initialized transparent geological model to obtain the three-dimensional spatial position of the historical fracture electrification data; Processing the three-dimensional spatial position with the initialized transparent geological model to obtain a characteristic representation of electrical data; A virtual image of the roof water-conducting fracture zone is constructed based on the three-dimensional modeling technology and the electrical data characteristics.

[0071] See also Figure 6 The present application also provides a coal mine water-conducting fracture zone observation device, comprising: Processor 601, memory 602, input and output unit 603, bus 604; The processor 601 is connected to the memory 602, the input and output unit 603 and the bus 604; The memory 602 stores a program, and the processor 601 calls the program to execute any of the above methods.

[0072] The present application also relates to a computer-readable storage medium, on which a program is stored. When the program is run on a computer, the computer executes any of the above methods.

[0073] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0074] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0075] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0076] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0077] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

Claims

1. A method for observing water-conducting fracture zones in coal mines, characterized in that: The method comprises: Construct an initial transparent geological model; Obtain historical fracture electrification data; Processing the historical fracture zone electrical method data using the initialized transparent geological model to construct a virtual mirror image of the roof water-conducting fracture zone; Using a numerical simulation algorithm to process the virtual image of the roof water-conducting fracture zone to obtain simulated monitoring data; Acquire monitoring difference data according to the electrical method data characteristics corresponding to the simulated monitoring data and the early warning threshold; Optimizing the initialized transparent geological model according to the monitoring difference data to obtain a target geological model; Collect fracture zone electrical data through borehole electrical method; Inputting the fracture electrification method data into the target geological model to obtain monitoring data; Determining whether the monitoring data exceeds the warning threshold; If so, the early warning mechanism is triggered; The method of processing the historical fracture zone electrical method data by using the initialized transparent geological model to construct a virtual image of the roof water-conducting fracture zone includes: Spatially registering the historical fracture electrification data with the initialized transparent geological model to obtain the three-dimensional spatial position of the historical fracture electrification data; Processing the three-dimensional spatial position with the initialized transparent geological model to obtain a characteristic representation of electrical data; A virtual image of the roof water-conducting fracture zone is constructed based on the three-dimensional modeling technology and the electrical data characteristics.

2. The method for observing water-conducting fracture zones in coal mines according to claim 1, characterized in that: The step of constructing an initialized transparent geological model comprises: Obtain geological material information; Digitally processing the geological material information to obtain geological data; Performing spatial coordinate registration on the geological data to obtain registered target geological data; The target geological data is processed using three-dimensional modeling technology to construct an initial transparent geological model.

3. The method for observing water-conducting fracture zones in coal mines according to claim 1, characterized in that: The method of collecting fracture zone electrical data by using the borehole electrical method technology includes: Set the drilling position according to the requirements for coal mine roof fracture zone detection; Using an electrical method instrument to set an electrical method probe device in the drilling position; Performing grouting and sealing the borehole at the position of the borehole to obtain a borehole measurement environment; The electrical method probe device is started according to the borehole measurement environment to obtain fracture zone electrical method data.

4. The method for observing water-conducting fracture zones in coal mines according to claim 3, characterized in that: The step of inputting the fracture electrical method data into the target geological model to obtain monitoring data includes: Using F5G slicing technology to allocate a dedicated network channel for the fracture electrification method data; Processing the fracture charging method data to obtain fracture charging method compressed data; Performing data verification and optimization on the fracture electrification method compression data to obtain target fracture electrification method data; The target fracture electrical data is input into the target geological model through the dedicated network channel to obtain monitoring data.

5. The method for observing water-conducting fracture zones in coal mines according to claim 1, characterized in that: The acquiring of monitoring difference data according to the electrical method data features corresponding to the simulated monitoring data and the early warning threshold comprises: Acquire monitoring difference data according to the electrical method data characteristics corresponding to the simulated monitoring data and the early warning threshold; The difference data is calculated by the first formula: ； in, represents the simulated monitoring data, Indicates the electrical data characteristics corresponding to the warning threshold, Indicates monitoring difference data, Indicates the warning threshold range.

6. The method for observing water-conducting fracture zones in coal mines according to claim 5, characterized in that: The step of optimizing the initialized transparent geological model according to the monitoring difference data to obtain a target geological model includes: The monitoring difference data is processed by the second formula to obtain the parameter adjustment value: ； in, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating, Indicates monitoring difference data, Representation parameters Update the scale factor; The parameter adjustment value is processed by the third formula to obtain an updated geological model parameter value: ； in, represents the updated geological model parameter value, Indicates the parameter adjustment value, Indicates the geological model parameter value before updating; The initialized transparent geological model is optimized according to the updated geological model parameter values ​​to obtain a target geological model.

7. A coal mine water-conducting fracture zone observation system, characterized in that: The system comprises: A first construction unit is used to construct an initial transparent geological model; A first acquisition unit is used to acquire historical fracture electrification method data; A second construction unit is used to process the historical fracture zone electrical method data using the initialized transparent geological model to construct a virtual image of the roof water-conducting fracture zone; A first processing unit is used to process the virtual image of the roof water-conducting fracture zone using a numerical simulation algorithm to obtain simulated monitoring data; A second processing unit, configured to obtain monitoring difference data according to the electrical method data features corresponding to the simulated monitoring data and the early warning threshold; A third processing unit is used to optimize the initialized transparent geological model according to the monitoring difference data to obtain a target geological model; The second acquisition unit is used to collect fracture zone electrical method data by using the borehole electrical method technology; A fourth processing unit, used for inputting the fracture electrification method data into the target geological model to obtain monitoring data; A judging unit, used to judge whether the monitoring data exceeds the warning threshold; An early warning triggering unit, configured to trigger an early warning mechanism when the judgment unit determines that the monitoring data exceeds the early warning threshold; The second building block is specifically used for: Spatially registering the historical fracture electrification data with the initialized transparent geological model to obtain the three-dimensional spatial position of the historical fracture electrification data; Processing the three-dimensional spatial position with the initialized transparent geological model to obtain a characteristic representation of electrical data; A virtual image of the roof water-conducting fracture zone is constructed based on the three-dimensional modeling technology and the electrical data characteristics.

8. A coal mine water-conducting fracture zone observation device, characterized in that: The device comprises: Processor, memory, input-output unit, and bus; The processor is connected to the memory, the input and output unit, and the bus; The memory stores a program, and the processor calls the program to execute the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program, and when the program is executed on a computer, the method according to any one of claims 1 to 6 is performed.

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