A coal mine ground water prevention and control intelligent monitoring control method

Abstract

The present application relates to the technical field of coal mine water prevention and control, and particularly discloses an intelligent monitoring and control method for coal mine water prevention and control. The present application intelligently identifies the position of a hydrological disaster source in a coal mine underground roadway by monitoring the hydrological disaster related information of the coal mine underground roadway, and starts a drainage device near the hydrological disaster source, thereby avoiding or reducing the loss caused by the hydrological disaster to a certain extent. The present application analyzes the reference drainage parameters of the operation drainage device of each hydrological disaster source by monitoring the severity of each hydrological disaster source in the coal mine underground roadway, and controls the operation drainage device of each hydrological disaster source based on the reference drainage parameters, thereby improving the pertinence and effectiveness of the coal mine underground roadway water prevention and control work to a certain extent. The present application monitors the drainage effect of the operation drainage device on both sides of the hydrological disaster source, starts and controls the auxiliary operation drainage device, and analyzes and controls the reference drainage parameters of the auxiliary operation drainage device according to the actual situation, thereby ensuring that the drainage operation can be effectively performed under various complex hydrological disaster conditions.

Description

Technical Field

[0001] This invention relates to the field of coal mine water control technology, specifically to an intelligent monitoring and control method for coal mine water control. Background Technology

[0002] Coal, as a vital energy source in my country, plays a crucial role in industrial production and economic development. However, coal mining operations often face complex hydrogeological conditions, and mine water hazards remain a significant threat to safe coal mine production. While my country's coal mining industry has made some progress in water control technology over the past few decades, traditional coal mine geological surveying and water control methods still face numerous challenges.

[0003] On the one hand, the scheduling and control of drainage systems lack intelligence. When faced with sudden floods, the manual judgment of the flood location and the activation of drainage systems are prone to errors and delays, resulting in the failure to control the flood in a timely manner. Furthermore, drainage systems typically operate based on preset fixed parameters. Upon detecting a water inrush, they immediately commence operations according to a predetermined drainage flow rate and duration, failing to dynamically adjust the operating parameters based on actual conditions such as the scale of the inrush, water pressure, and groundwater level. If the drainage parameters are set too low, the accumulated water cannot be drained in time, potentially leading to flooding and exacerbating the damage caused by the flood. If the drainage parameters are set too high, it not only causes excessive energy consumption and additional wear and tear on equipment but also increases the operating costs of the coal mine. This inflexible and unintelligent control method is ill-suited to complex and ever-changing flood scenarios.

[0004] On the other hand, current water control efforts severely lack a real-time monitoring and evaluation mechanism for drainage effectiveness. The inability to monitor actual drainage flow, changes in water levels, and water quality in real time makes it difficult to detect and implement effective countermeasures when drainage results fall short of expectations or when drainage in certain areas is untimely. This significantly weakens the reliability of water control efforts and fails to provide absolute safety guarantees for underground coal mine operations.

[0005] To address the aforementioned shortcomings, a technical solution is provided. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent monitoring and control method for water control in coal mines, in order to solve the problems mentioned in the background.

[0007] The objective of this invention can be achieved through the following technical solution: an intelligent monitoring and control method for water control in coal mines, comprising the following steps:

[0008] Step 1: Roadway Area Division and Drainage Device Deployment: The underground roadways of the coal mine are divided into various underground roadway areas according to the pre-set principle of equal area, and drainage devices are installed on both sides of each underground roadway area.

[0009] Step 2: Hydrological Disaster Monitoring and Identification: Obtain geological structure information within the underground roadway areas of each coal mine, determine the distribution range of aquifers, aquitards, and fault fracture zones within these areas, and acquire hydrological disaster correlation information for each underground roadway area at each monitoring time point within the monitoring period. Then, analyze the hydrological disaster risk situation in each underground roadway area, determine whether there is a hydrological disaster risk in each area, and locate the sources of each hydrological disaster within the underground roadways.

[0010] Step 3: Scheduling of drainage devices: Identify the drainage devices located on both sides of each hydrological hazard source area in the underground roadway of the coal mine that are closest to the hydrological hazard source area, mark them as the left-side and right-side drainage devices for each hydrological hazard source area in the underground roadway of the coal mine, and control their activation.

[0011] Step 4: Control of drainage devices: Obtain the control parameters of the hydrological sources detected by the left and right drainage devices in the underground roadway of the coal mine. The control parameters include water inflow, water pressure, water level and water velocity. Analyze the reference drainage parameters of the left and right drainage devices for each hydrological source, including drainage flow and drainage duration. Control the left and right drainage devices for each hydrological source.

[0012] Step 5: Determine the drainage effect of the drainage devices: Analyze the drainage effect coefficients of the drainage devices corresponding to each hydrological disaster source to determine whether the drainage effect of the drainage devices corresponding to each hydrological disaster source meets the requirements.

[0013] Step 6: Scheduling of auxiliary drainage devices: When it is determined that the drainage effect of the left-side or right-side auxiliary drainage device corresponding to a certain hydrological disaster source does not meet the requirements, the left-side or right-side auxiliary drainage device of each hydrological disaster source is activated and its activation is controlled.

[0014] Step 7: Control of auxiliary drainage devices: Analyze the reference drainage parameters of the left and right auxiliary drainage devices for each hydrological disaster source, and control the left and right auxiliary drainage devices for each hydrological disaster source.

[0015] Preferably, the acquisition of hydrological disaster association information for each coal mine underground roadway area corresponding to each monitoring time point within the monitoring period includes: acquiring the water-bearing capacity, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each coal mine underground roadway area corresponding to each monitoring time point within the monitoring period.

[0016] Preferably, the steps for analyzing the hydrological hazard risk in the underground roadways of each coal mine are as follows:

[0017] Based on the water-bearing capacity, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each coal mine underground roadway area at each monitoring time point within the monitoring period, the maximum and average water-bearing capacity growth rates, maximum and average aquifer permeability growth rates, minimum aquitard thickness, maximum and average fault fracture zone water conductivity growth rates are obtained for each coal mine underground roadway area within the monitoring period.

[0018] The early warning values ​​for aquifer water abundance, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of underground coal mine roadways were extracted from the database. Based on these values, the influence indices for aquifer water abundance, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each underground coal mine roadway were analyzed.

[0019] The water-bearing capacity influence index, water-permeability influence index, and fault fracture zone water-conductivity influence index of each coal mine underground roadway are converted into lengths according to a preset ratio. The length of the water-bearing capacity influence index of the aquifer is used as the length, the length of the water-permeability influence index of the aquifer is used as the width, and the length of the fault fracture zone water-conductivity influence index of the fault fracture zone is used as the height to construct a cuboid. The volume value of the cuboid is extracted as result one, which is multiplied by the water-impermeable layer thickness influence index to obtain result two. Result two is used as the hydrological disaster risk coefficient. Thus, the hydrological disaster risk coefficient of each coal mine underground roadway area is statistically obtained.

[0020] Preferably, the step of determining whether there is a risk of hydrological disasters in the underground roadway areas of each coal mine is as follows:

[0021] The hydrological hazard risk coefficient of each underground roadway area in a coal mine is compared with the preset hydrological hazard risk coefficient threshold. If the hydrological hazard risk coefficient of an underground roadway area in a coal mine is greater than or equal to the preset hydrological hazard risk coefficient threshold, then the underground roadway area of ​​the coal mine is determined to have a hydrological hazard risk, and the underground roadway area of ​​the coal mine with a hydrological hazard risk coefficient greater than or equal to the preset hydrological hazard risk coefficient threshold is recorded as an abnormal area.

[0022] If the hydrological hazard risk coefficient of a certain underground roadway area in a coal mine is less than the preset hydrological hazard risk coefficient threshold, then it is determined that there is no hydrological hazard risk in that underground roadway area of ​​the coal mine.

[0023] Preferably, the steps for locating the positions of various hydrological hazard sources in underground coal mine roadways are as follows:

[0024] Each underground roadway area in a coal mine is numbered, and the hydrological hazard risk coefficient and corresponding number of each underground roadway area are extracted. The number of abnormal areas is counted, and the numbers of each abnormal area are compared. The difference between the largest and smallest numbers is calculated, and the result of the difference calculation is compared with the number of abnormal areas to determine whether each abnormal area is a continuous area.

[0025] If the region is determined to be a continuous area, the hydrological disaster risk coefficients of each abnormal area are compared, and the abnormal area corresponding to the largest hydrological disaster risk coefficient is selected as the source of hydrological disaster.

[0026] If the region is determined to be non-continuous, then continuous and discontinuous anomalous regions are identified. The hydrological hazard risk coefficients of each continuous anomalous region are compared, and the anomalous region corresponding to the highest hydrological hazard risk coefficient in each continuous anomalous region is selected as the hydrological hazard source of that continuous anomalous region. Then, the numbers of the hydrological hazard sources corresponding to each continuous anomalous region are counted. The coal mine underground roadway areas corresponding to the listed numbers are the hydrological hazard sources of the coal mine underground roadways. At the same time, the numbers of the hydrological hazard sources corresponding to each discontinuous anomalous region are also counted, and the coal mine underground roadway areas corresponding to the listed numbers are the hydrological hazard sources of the coal mine underground roadways.

[0027] This allows us to pinpoint the sources of various hydrological hazards in underground coal mine roadways.

[0028] Preferably, the steps for analyzing the reference drainage parameters of the left-side and right-side drainage devices for each hydrological disaster source are as follows:

[0029] The groundwater inflow rate, pressure, level, and velocity of each hydrological hazard source detected by the left-side and right-side drainage devices in underground coal mine roadways are obtained. The ratios of these values ​​are then calculated against preset threshold values ​​for flow rate, pressure, level, and velocity, respectively. Finally, the severity coefficient of the hydrological hazard detected by the left-side drainage devices is calculated by summing these weighted ratios according to their respective weights.

[0030] Similarly, the severity coefficient of hydrological hazards detected by the drainage device on the right side of each hydrological hazard source in the underground roadway of the coal mine is obtained.

[0031] The severity coefficients of hydrological hazards detected by the drainage devices on the left and right sides of each hydrological hazard source in the underground roadway of the coal mine are matched with the reference drainage parameters of the drainage devices corresponding to the severity coefficients of each hydrological hazard. This yields the reference drainage parameters of the drainage devices on the left and right sides of each hydrological hazard source in the underground roadway of the coal mine. The drainage parameters refer to the drainage flow rate and drainage duration.

[0032] Preferably, the step of analyzing the drainage effect coefficient of the drainage device corresponding to each hydrological disaster source is as follows:

[0033] Extract the reference drainage parameters of the left-side and right-side drainage devices corresponding to each hydrological disaster source, and match them with the standard groundwater level drop values ​​corresponding to the reference drainage parameters of each drainage device stored in the database to obtain the standard groundwater level drop values ​​of the left-side and right-side drainage devices corresponding to each hydrological disaster source.

[0034] Obtain the actual groundwater level drop value of the left-side drainage device corresponding to each hydrological disaster source, and calculate the ratio between the actual groundwater level drop value and the standard groundwater level drop value of the left-side drainage device corresponding to each hydrological disaster source to obtain the drainage effect coefficient of the left-side operation drainage device corresponding to each hydrological disaster source.

[0035] Similarly, the drainage effect coefficient of the right-side drainage device corresponding to each hydrological disaster source is obtained.

[0036] The drainage effect coefficient of the left-side drainage device corresponding to each hydrological disaster source is compared with the preset drainage effect coefficient threshold. If the drainage effect coefficient of the left-side drainage device corresponding to a certain hydrological disaster source is greater than or equal to the preset drainage effect coefficient threshold, the drainage effect of the left-side drainage device corresponding to that hydrological disaster source is determined to meet the requirements. If the drainage effect coefficient of the left-side drainage device corresponding to a certain hydrological disaster source is less than the preset drainage effect coefficient threshold, the drainage effect of the left-side drainage device corresponding to that hydrological disaster source is determined to not meet the requirements.

[0037] Similarly, determine whether the drainage effect of the right-side operation corresponding to each hydrological disaster source meets the requirements.

[0038] Preferably, the steps for analyzing the reference drainage parameters of the left-side auxiliary drainage device and the right-side auxiliary drainage device for each hydrological disaster source are as follows:

[0039] The difference between the drainage effect coefficient of the left-side drainage device of each hydrological disaster source and the preset drainage effect coefficient threshold is calculated to obtain the difference in drainage effect coefficient of the left-side drainage device of each hydrological disaster source. This difference is then matched with the reference drainage parameters of the left-side auxiliary drainage device corresponding to the preset difference in drainage effect coefficient of each left-side drainage device to obtain the reference drainage parameters of the left-side auxiliary drainage device of each hydrological disaster source.

[0040] Similarly, based on the analysis method of the reference drainage parameters of the auxiliary drainage devices on the left side of each hydrological disaster source, the reference drainage parameters of the auxiliary drainage devices on the right side of each hydrological disaster source are obtained.

[0041] The beneficial effects of this invention are:

[0042] This invention intelligently identifies the location of hydrological hazard sources in underground coal mine roadways by monitoring the water-bearing capacity, permeability, aquitard thickness, and water conductivity of fault fracture zones. It then activates drainage devices near these sources, reducing errors caused by human intervention, accurately determining the location of potential hydrological hazards, and activating corresponding drainage devices. This, to a certain extent, avoids or mitigates losses caused by hydrological hazards and ensures the safety of underground coal mine operations.

[0043] This invention monitors the groundwater flow rate, pressure, level, and velocity of various hydrological hazard sources in underground coal mine roadways, analyzes the reference drainage parameters of the drainage devices operating at each hydrological hazard source, and makes corresponding controls based on the reference drainage parameters. It can adaptively adjust the drainage parameters of the drainage devices according to the severity of the hydrological hazard source, thereby improving the pertinence and effectiveness of water prevention and control work in underground coal mine roadways to a certain extent.

[0044] This invention monitors the drainage effect of the drainage devices on both sides of the hydrological disaster source to determine whether they meet the requirements. If they do not meet the requirements, the auxiliary drainage devices on both sides of the hydrological disaster source are activated and regulated. The reference drainage parameters are analyzed and regulated according to the actual situation, which further enhances the drainage capacity and ensures that drainage operations can be carried out effectively under various complex hydrological disaster conditions, thus protecting the safety of underground coal mines. Attached Figure Description

[0045] The invention will now be further described with reference to the accompanying drawings.

[0046] Figure 1 This is a system block diagram of the present invention.

[0047] Figure 2 This is a logical schematic diagram of the hydrological disaster monitoring and identification method of the present invention.

[0048] Figure 3 This is a top view schematic diagram of the underground roadway in a coal mine according to the present invention.

[0049] Attached reference numerals: 1. Tunnel entrance; 2. Tunnel area; 3. Hydrological hazard source; 4. Left-side operation drainage device; 5. Right-side operation drainage device; 6. Left-side auxiliary operation drainage device; 7. Right-side auxiliary operation drainage device. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Please see Figures 1-3 As shown, this invention is an intelligent monitoring and control method for water control in coal mines, comprising the following steps:

[0052] Step 1: Roadway Area Division and Drainage Device Deployment: The underground roadways of the coal mine are divided into various underground roadway areas according to the pre-set principle of equal area, and drainage devices are installed on both sides of each underground roadway area.

[0053] Step 2: Hydrological Disaster Monitoring and Identification: Obtain geological structure information within the underground roadway areas of each coal mine, determine the distribution range of aquifers, aquitards, and fault fracture zones within these areas, and acquire hydrological disaster correlation information for each underground roadway area at each monitoring time point within the monitoring period. Then, analyze the hydrological disaster risk situation in each underground roadway area, determine whether there is a hydrological disaster risk in each area, and locate the sources of each hydrological disaster within the underground roadways.

[0054] As a preferred feasible embodiment, the acquisition of hydrological disaster association information of each coal mine underground roadway area corresponding to each monitoring time point within the monitoring period includes: acquiring the water-bearing capacity, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each coal mine underground roadway area corresponding to each monitoring time point within the monitoring period.

[0055] It should be noted that the methods for obtaining the water-bearing capacity, permeability, aquitard thickness, and water conductivity of fault fracture zones are as follows:

[0056] By utilizing the differences in geophysical properties of different lithologies and aquifers, the resistivity, spontaneous potential, and acoustic velocity of the corresponding aquifers in underground coal mine roadways are measured using logging instruments. Then, based on the relationship function between the resistivity, spontaneous potential, and acoustic velocity of the aquifer and the water-bearing capacity of the aquifer, the water-bearing capacity of the aquifer is obtained.

[0057] The porosity distribution of the aquifer is obtained by nuclear magnetic resonance logging, and the aquifer permeability is obtained by the relationship function between porosity and aquifer permeability.

[0058] By analyzing the geological structure profile in the geological structure information of the underground roadway area of ​​the coal mine, the interface of the aquitard is identified on the profile based on the characteristics of the reflected waves (such as the amplitude, frequency and phase of the reflected waves). Then, the thickness of the aquitard is determined by analyzing the continuity and distribution range of the reflected waves.

[0059] The transmissive magnetometer transmits pulsed currents into the underground roadway area of ​​a coal mine, creating an alternating electromagnetic field underground. When this electromagnetic field encounters geological bodies with different electromagnetic properties, it generates secondary induced electromagnetic fields. The receiving coil receives these secondary field signals, and the instrument records the intensity and characteristics of the electromagnetic signals at different times and locations. The collected electromagnetic data is processed and inverted to create an electromagnetic response image of the underground geological body, thereby determining the location of the fault fracture zone. Based on the anomalous characteristics of the electromagnetic response (such as the intensity, range, and morphology of the anomalous response), the water conductivity of the fault fracture zone is determined.

[0060] As a preferred and feasible embodiment, the steps for analyzing the hydrological hazard risk in the underground roadways of each coal mine are as follows:

[0061] Based on the water-bearing capacity, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each coal mine underground roadway area at each monitoring time point within the monitoring period, the maximum and average water-bearing capacity growth rates, maximum and average aquifer permeability growth rates, minimum aquitard thickness, maximum and average fault fracture zone water conductivity growth rates are obtained for each coal mine underground roadway area within the monitoring period.

[0062] It should be noted that the following factors were chosen as the risk coefficients for hydrological hazards in coal mine roadways: 1. Aquifers with high water content contain a large amount of water. Once hydraulically connected to the roadway, sufficient water can flow into the roadway, causing water damage. For example, in a thick sandstone aquifer with high water content, a large amount of water will rapidly flow in after the roadway is exposed during excavation or after the aquitard is damaged by geological structures, resulting in serious consequences such as roadway flooding or even inundation. 2. Permeability determines the flow rate and capacity of groundwater within the aquifer. In aquifers with high permeability, water can quickly converge into the roadway. Even if the aquifer's water content is average, high permeability can still lead to a large influx of water in a short period, increasing the likelihood and severity of hydrological hazards. 3. Aquitards play a crucial role in preventing groundwater from seeping into the roadway. Thick aquitards can effectively prevent or slow down the flow of groundwater, reducing the risk of hydrological hazards. Conversely, if the aquitard is insufficiently thick, it cannot withstand the pressure of groundwater and is easily breached, leading to water damage. 4. Fault fracture zones often serve as channels for groundwater movement. If they are highly conductive, they enhance the hydraulic connection between different aquifers and make it easier for groundwater to approach the tunnel. Even if the tunnel is far from the aquifer, it may still face the threat of water damage due to highly conductive fault fracture zones.

[0063] It should be noted that the growth rates of maximum and average aquifer water abundance, maximum and average aquifer permeability, minimum aquitard thickness, maximum fault fracture zone water conductivity, and average fault fracture zone water conductivity are obtained as follows: the aquifer water abundance of each coal mine underground roadway area corresponding to each monitoring time point within the monitoring period is arranged in descending order, and the maximum value is extracted from it, thus obtaining the maximum aquifer water abundance of each coal mine underground roadway area within the monitoring period.

[0064] Based on the water-bearing capacity of the aquifers in each underground roadway area of ​​a coal mine at each monitoring time point within the monitoring period, the increase in water-bearing capacity of the aquifers in each underground roadway area of ​​a coal mine at each monitoring time point within the monitoring period is obtained. The interval length corresponding to each monitoring time point is extracted, and the increase in water-bearing capacity of the aquifers is divided by the interval length of the monitoring time point to obtain the growth rate of water-bearing capacity of the aquifers in each underground roadway area of ​​a coal mine at each monitoring time point within the monitoring period. Then, the average is calculated to obtain the average growth rate of water-bearing capacity of the aquifers in each underground roadway area of ​​a coal mine within the monitoring period.

[0065] Similarly, the maximum aquifer permeability and the average aquifer permeability growth rate, the maximum fault fracture zone water conductivity and the average fault fracture zone water conductivity growth rate are obtained.

[0066] The thickness of the waterproof layer in each underground roadway area of ​​a coal mine at each monitoring time point within the monitoring period is arranged in descending order, and the minimum value is extracted from it to obtain the minimum waterproof layer thickness in each underground roadway area of ​​a coal mine within the monitoring period.

[0067] The early warning values ​​for aquifer water abundance, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of underground coal mine roadways were extracted from the database. Based on these values, the influence indices for aquifer water abundance, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each underground coal mine roadway were analyzed.

[0068] It should be noted that the analysis process for the aquifer water-bearing capacity influence index, aquifer permeability influence index, aquitard thickness influence index, and fault fracture zone water conductivity influence index of various coal mine underground roadways is as follows:

[0069] The maximum and average aquifer water-bearing capacity of each coal mine's underground roadway are calculated using the aquifer water-bearing capacity influence index formula. The water-bearing capacity influence index of the aquifer in the underground roadways of each coal mine was calculated.

[0070] Similarly, the permeability influence index of aquifers and the water conductivity influence index of fault fracture zones in underground roadways of various coal mines were obtained through analysis.

[0071] The thickness of the aquitard layer in each underground roadway of a coal mine is determined by the aquitard layer thickness influence index formula. The influence index of the thickness of the water-tight layer in the underground roadways of each coal mine was calculated.

[0072] The water-bearing capacity influence index, aquifer permeability influence index, and fault fracture zone water conductivity influence index of each coal mine underground roadway are converted into lengths according to a preset ratio. The length of the water-bearing capacity influence index of the aquifer is used as the length, the length of the aquifer permeability influence index is used as the width, and the length of the fault fracture zone water conductivity influence index is used as the height to construct a cuboid. The volume value of the cuboid is extracted as result one. Result one is multiplied by the aquitard thickness influence index to obtain result two. Result two is used as the hydrological disaster risk coefficient. Thus, the hydrological disaster risk coefficient of each coal mine underground roadway area is statistically obtained.

[0073] As a preferred and feasible embodiment, the steps for determining whether there is a risk of hydrological disasters in the underground roadways of each coal mine are as follows:

[0074] The hydrological hazard risk coefficient of each underground roadway area in a coal mine is compared with the preset hydrological hazard risk coefficient threshold. If the hydrological hazard risk coefficient of an underground roadway area in a coal mine is greater than or equal to the preset hydrological hazard risk coefficient threshold, then the underground roadway area of ​​the coal mine is determined to have a hydrological hazard risk, and the underground roadway area of ​​the coal mine with a hydrological hazard risk coefficient greater than or equal to the preset hydrological hazard risk coefficient threshold is recorded as an abnormal area.

[0075] If the hydrological hazard risk coefficient of a certain underground roadway area in a coal mine is less than the preset hydrological hazard risk coefficient threshold, then it is determined that there is no hydrological hazard risk in that underground roadway area of ​​the coal mine.

[0076] As a preferred and feasible embodiment, the steps for locating the positions of various hydrological hazard sources in underground coal mine roadways are as follows:

[0077] Each underground roadway area in a coal mine is numbered, and the hydrological hazard risk coefficient and corresponding number of each underground roadway area are extracted. The number of abnormal areas is counted, and the numbers of each abnormal area are compared. The difference between the largest and smallest numbers is calculated, and the result of the difference calculation is compared with the number of abnormal areas to determine whether each abnormal area is a continuous area.

[0078] It should be noted that the underground roadway areas of the coal mine are numbered sequentially, starting from the entrance area of ​​the underground roadway.

[0079] It should be noted that the method for determining whether each abnormal region is a continuous region is as follows: the result of the difference calculation is recorded as the number difference, and then the difference is calculated with the number of abnormal regions. When the difference between the number of abnormal regions and the number difference is 1, the abnormal regions are determined to be continuous regions; otherwise, the abnormal regions are determined to be non-continuous regions.

[0080] If the region is determined to be a continuous area, the hydrological disaster risk coefficients of each abnormal area are compared, and the abnormal area corresponding to the largest hydrological disaster risk coefficient is selected as the source of hydrological disaster.

[0081] It should be noted that if the area is determined to be continuous, it means that only one hydrological hazard source appeared in the underground roadway of the coal mine during that monitoring period.

[0082] If the region is determined to be non-continuous, then continuous and discontinuous anomalous regions are identified. The hydrological hazard risk coefficients of each continuous anomalous region are compared, and the anomalous region corresponding to the highest hydrological hazard risk coefficient in each continuous anomalous region is selected as the hydrological hazard source of that continuous anomalous region. Then, the numbers of the hydrological hazard sources corresponding to each continuous anomalous region are counted. The coal mine underground roadway areas corresponding to the listed numbers are the hydrological hazard sources of the coal mine underground roadways. At the same time, the numbers of the hydrological hazard sources corresponding to each discontinuous anomalous region are also counted, and the coal mine underground roadway areas corresponding to the listed numbers are the hydrological hazard sources of the coal mine underground roadways.

[0083] This allows us to pinpoint the sources of various hydrological hazards in underground coal mine roadways.

[0084] It should be noted that if the area is not determined to be continuous, it indicates that multiple hydrological disaster sources have appeared in the underground roadways of the coal mine during the monitoring period.

[0085] For example, when the abnormal areas are numbered 3, 4, 5, 10, 16, 17, 18, and 25, the consecutive abnormal areas are 3, 4, 5 and 16, 17, 18, and the discontinuous abnormal areas are 10 and 25. The corresponding hydrological disaster risk coefficients are 0.62, 0.66, 0.61, 0.55, 0.63, 0.68, 0.64, and 0.58, respectively. Therefore, the source of the hydrological disaster is determined to be the underground roadway area of ​​the coal mine numbered 4, 10, 17, and 25.

[0086] Step 3: Scheduling of drainage devices: Identify the drainage devices located on the left side of each hydrological hazard source area in the underground roadway of the coal mine, which are closest to the hydrological hazard source area. Mark them as the left-side and right-side drainage devices for each hydrological hazard source area in the underground roadway of the coal mine, and control their activation.

[0087] It should be noted that the left-side and right-side drainage devices for each hydrological hazard source in the underground roadway of the coal mine are activated through the remote control center of the coal mine underground roadway drainage device.

[0088] In one specific embodiment, the present invention intelligently identifies the location of hydrological hazard sources in underground coal mine roadways by monitoring hydrological hazard correlation information and activates drainage devices near the hydrological hazard sources. This reduces errors caused by human intervention, accurately determines the location of possible hydrological hazards and activates corresponding drainage devices, thereby avoiding or mitigating losses caused by hydrological hazards to a certain extent and ensuring the safety of underground coal mine operations.

[0089] Step 4: Control of drainage devices: Obtain the control parameters of the hydrological sources detected by the left and right drainage devices in the underground roadway of the coal mine. The control parameters include water inflow, water pressure, water level and water velocity. Analyze the reference drainage parameters of the left and right drainage devices for each hydrological source, including drainage flow and drainage duration. Control the left and right drainage devices for each hydrological source.

[0090] As a preferred feasible embodiment, the steps for analyzing the reference drainage parameters of the drainage devices on the left and right sides of each hydrological disaster source are as follows:

[0091] The groundwater inflow rate, pressure, level, and velocity of each hydrological hazard source detected by the left-side and right-side drainage devices in underground coal mine roadways are obtained. The ratios of these values ​​are then calculated against preset threshold values ​​for flow rate, pressure, level, and velocity, respectively. Finally, the severity coefficient of the hydrological hazard detected by the left-side drainage devices is calculated by summing these weighted ratios according to their respective weights.

[0092] It should be noted that the flow rate, pressure, level, and velocity of groundwater inflow from hydrological disaster sources are collected by flow sensors, pressure sensors, level sensors, and velocity sensors carried by the drainage devices on the left and right sides of each hydrological disaster source in the underground roadway of the coal mine.

[0093] Similarly, the severity coefficient of hydrological hazards detected by the drainage device on the right side of each hydrological hazard source in the underground roadway of the coal mine is obtained.

[0094] The severity coefficients of hydrological hazards detected by the drainage devices on the left and right sides of each hydrological hazard source in the underground roadway of the coal mine are matched with the reference drainage parameters of the drainage devices corresponding to the severity coefficients of each hydrological hazard. This yields the reference drainage parameters of the drainage devices on the left and right sides of each hydrological hazard source in the underground roadway of the coal mine. The drainage parameters refer to the drainage flow rate and drainage duration.

[0095] It should be noted that the reference drainage parameters of the left-side drainage device and the right-side drainage device of each hydrological hazard source in the underground roadway are sent from the remote control center of the coal mine roadway to the controllers of the left-side and right-side drainage devices, respectively, so as to regulate the drainage flow and drainage duration of the left-side and right-side drainage devices.

[0096] In one specific embodiment, the present invention monitors the groundwater flow rate, water pressure, water level and water velocity of various hydrological disaster sources in underground coal mine roadways, analyzes the reference drainage parameters of the drainage devices operating at each hydrological disaster source, and makes corresponding controls based on the reference drainage parameters. It can adaptively adjust the drainage parameters of the drainage devices according to the severity of the hydrological disaster source, thereby improving the pertinence and effectiveness of water prevention and control work in underground coal mine roadways to a certain extent.

[0097] Step 5: Determine the drainage effect of the drainage devices: Analyze the drainage effect coefficients of the drainage devices corresponding to each hydrological disaster source to determine whether the drainage effect of the drainage devices corresponding to each hydrological disaster source meets the requirements.

[0098] As a preferred feasible embodiment, the steps for analyzing the drainage effect coefficient of the operational drainage devices corresponding to each hydrological disaster source are as follows:

[0099] Extract the reference drainage parameters of the left-side and right-side drainage devices corresponding to each hydrological disaster source, and match them with the standard groundwater level drop values ​​corresponding to the reference drainage parameters of each drainage device stored in the database to obtain the standard groundwater level drop values ​​of the left-side and right-side drainage devices corresponding to each hydrological disaster source.

[0100] Obtain the actual groundwater level drop value of the left-side drainage device corresponding to each hydrological disaster source, and calculate the ratio between the actual groundwater level drop value and the standard groundwater level drop value of the left-side drainage device corresponding to each hydrological disaster source to obtain the drainage effect coefficient of the left-side operation drainage device corresponding to each hydrological disaster source.

[0101] Similarly, the drainage effect coefficient of the right-side drainage device corresponding to each hydrological disaster source is obtained.

[0102] The drainage effect coefficient of the left-side drainage device corresponding to each hydrological disaster source is compared with the preset drainage effect coefficient threshold. If the drainage effect coefficient of the left-side drainage device corresponding to a certain hydrological disaster source is greater than or equal to the preset drainage effect coefficient threshold, the drainage effect of the left-side drainage device corresponding to that hydrological disaster source is determined to meet the requirements. If the drainage effect coefficient of the left-side drainage device corresponding to a certain hydrological disaster source is less than the preset drainage effect coefficient threshold, the drainage effect of the left-side drainage device corresponding to that hydrological disaster source is determined to not meet the requirements.

[0103] Similarly, determine whether the drainage effect of the right-side operation corresponding to each hydrological disaster source meets the requirements.

[0104] Step 6: Scheduling of auxiliary drainage devices: When it is determined that the drainage effect of the left-side or right-side auxiliary drainage device corresponding to a certain hydrological disaster source does not meet the requirements, the left-side or right-side auxiliary drainage device of each hydrological disaster source is activated and its activation is controlled.

[0105] It should be noted that the left-side auxiliary drainage device refers to the left-side drainage device that is close to the hydrological disaster source and is not in operation, while the right-side auxiliary drainage device refers to the right-side drainage device that is close to the hydrological disaster source and is not in operation.

[0106] It should be noted that the left and right auxiliary drainage devices for each hydrological hazard source in the underground roadway of the coal mine are activated through the remote control center of the coal mine underground roadway drainage device.

[0107] Step 7: Control of auxiliary drainage devices: Analyze the reference drainage parameters of the left and right auxiliary drainage devices for each hydrological disaster source, and control the left and right auxiliary drainage devices for each hydrological disaster source.

[0108] As a preferred feasible embodiment, the steps for analyzing the reference drainage parameters of the left-side auxiliary drainage device and the right-side auxiliary drainage device for each hydrological disaster source are as follows:

[0109] The difference between the drainage effect coefficient of the left-side drainage device of each hydrological disaster source and the preset drainage effect coefficient threshold is calculated to obtain the difference in drainage effect coefficient of the left-side drainage device of each hydrological disaster source. This difference is then matched with the reference drainage parameters of the left-side auxiliary drainage device corresponding to the preset difference in drainage effect coefficient of each left-side drainage device to obtain the reference drainage parameters of the left-side auxiliary drainage device of each hydrological disaster source.

[0110] Similarly, based on the analysis method of the reference drainage parameters of the auxiliary drainage devices on the left side of each hydrological disaster source, the reference drainage parameters of the auxiliary drainage devices on the right side of each hydrological disaster source are obtained.

[0111] It should be noted that the reference drainage parameters of the left auxiliary operation drainage device and the right auxiliary operation drainage device of each hydrological disaster source in the underground roadway of the coal mine are sent to the controllers of the left and right auxiliary operation drainage devices, respectively, through the remote control center of the underground roadway drainage device. This is to regulate the drainage flow and drainage duration of the left and right auxiliary operation drainage devices.

[0112] In one specific embodiment, the present invention monitors the drainage effect of the drainage devices on both sides of the hydrological disaster source to determine whether it meets the requirements. If it does not meet the requirements, the auxiliary drainage devices on both sides of the hydrological disaster source are activated and regulated. The reference drainage parameters are analyzed and regulated according to the actual situation, which further enhances the drainage capacity and ensures that drainage operations can be carried out effectively under various complex hydrological disaster conditions, thus ensuring the safety of underground coal mines.

[0113] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A method for intelligent monitoring and control of water pollution prevention and control in coal mines, characterized in that, Includes the following steps: Step 1: Division of tunnel areas and deployment of drainage devices; Step 2, Hydrological Disaster Monitoring and Identification, includes: obtaining geological structure information within the underground roadway areas of each coal mine, determining the distribution range of aquifers, aquitards, and fault fracture zones within the underground roadway areas of each coal mine, obtaining hydrological disaster correlation information for each underground roadway area of ​​each coal mine at each monitoring time point within the monitoring period, analyzing the hydrological disaster risk status of each underground roadway area of ​​each coal mine, determining whether there is a hydrological disaster risk in each underground roadway area of ​​each coal mine, and locating the location of each hydrological disaster source in the underground roadway of the coal mine; The steps for analyzing the hydrological hazard risk in underground roadways of various coal mines are as follows: Based on the water-bearing capacity, permeability, aquitard thickness, and fault fracture zone water conductivity of each coal mine underground roadway area at each monitoring time point within the monitoring period, the maximum and average water-bearing capacity growth rates, maximum and average aquitard permeability growth rates, minimum aquitard thickness, maximum and average fault fracture zone water conductivity growth rates are obtained for each coal mine underground roadway area within the monitoring period. The early warning values ​​for aquifer water abundance, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of underground coal mine roadways were extracted from the database. Based on these values, the influence indices for aquifer water abundance, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each underground coal mine roadway were analyzed. The water-bearing capacity influence index, water-permeability influence index, and fault fracture zone water-conductivity influence index of each coal mine underground roadway are converted into lengths according to a preset ratio. The length of the water-bearing capacity influence index is used as the length, the length of the water-permeability influence index is used as the width, and the length of the fault fracture zone water-conductivity influence index is used as the height to construct a cuboid. The volume value of the cuboid is extracted as result one. Result one is multiplied by the water-impermeable layer thickness influence index to obtain result two. Result two is used as the hydrological disaster risk coefficient. Thus, the hydrological disaster risk coefficient of each coal mine underground roadway area is statistically obtained. Step 3, Drainage device scheduling: Identify the drainage devices located on both sides of each hydrological hazard source area in the underground coal mine roadway that are closest to the hydrological hazard source area, mark them as the left-side and right-side drainage devices for each hydrological hazard source area in the underground coal mine roadway, and control their activation; Step 4: Control of drainage devices: Obtain the control parameters of the water sources detected by the left and right drainage devices in the underground roadway of the coal mine. The control parameters include water inflow, water pressure, and groundwater level. Analyze the reference drainage parameters of the left and right drainage devices for each water source, including drainage flow and drainage duration. Control the left and right drainage devices for each water source. Step 5: Determining the drainage effect of the drainage devices: Analyze the drainage effect coefficients of the drainage devices corresponding to each hydrological disaster source to determine whether the drainage effect of the drainage devices corresponding to each hydrological disaster source meets the requirements. Step 6, Auxiliary operation drainage device scheduling: When it is determined that the drainage effect of the left-side or right-side operation drainage device corresponding to a certain hydrological disaster source is not up to standard, the left-side or right-side auxiliary operation drainage device of each hydrological disaster source shall be activated. Step 7: Control of auxiliary drainage devices: Analyze the reference drainage parameters of the left and right auxiliary drainage devices for each hydrological disaster source, and control the left and right auxiliary drainage devices for each hydrological disaster source.

2. The intelligent monitoring and control method for water prevention and control in coal mines according to claim 1, characterized in that, The roadway area division and drainage device deployment includes: dividing the underground roadways of the coal mine into various underground roadway areas according to a preset equal area principle, and setting up drainage devices on both sides of each underground roadway area. The hydrological disaster association information for each coal mine underground roadway area corresponding to each monitoring time point within the monitoring period includes: obtaining the water-bearing capacity, aquifer permeability, aquitard thickness, and fault fracture zone water conductivity of each coal mine underground roadway area corresponding to each monitoring time point within the monitoring period.

3. The intelligent monitoring and control method for water prevention and control in coal mines according to claim 1, characterized in that, The steps for determining whether there is a risk of hydrological disasters in the underground roadways of each coal mine are as follows: The hydrological hazard risk coefficient of each coal mine underground roadway area is compared with the preset hydrological hazard risk coefficient threshold. If the hydrological hazard risk coefficient of a coal mine underground roadway area is greater than or equal to the preset hydrological hazard risk coefficient threshold, then the coal mine underground roadway area is determined to have a hydrological hazard risk, and the coal mine underground roadway area with a hydrological hazard risk coefficient greater than or equal to the preset hydrological hazard risk coefficient threshold is recorded as an abnormal area. If the hydrological hazard risk coefficient of a certain underground roadway area in a coal mine is less than the preset hydrological hazard risk coefficient threshold, then it is determined that there is no hydrological hazard risk in that underground roadway area of ​​the coal mine.

4. The intelligent monitoring and control method for water prevention and control in coal mines according to claim 1, characterized in that, The steps for locating the sources of various hydrological hazards in underground coal mine roadways are as follows: Each coal mine underground roadway area is numbered, and the hydrological disaster risk coefficient and corresponding number of each coal mine underground roadway area are extracted. The number of abnormal areas is counted, and the numbers of each abnormal area are compared. The difference between the largest and smallest numbers is calculated, and the result of the difference calculation is compared with the number of abnormal areas to determine whether each abnormal area is a continuous area. If it is determined to be a continuous area, the hydrological disaster risk coefficients of each abnormal area are compared, and the abnormal area corresponding to the largest hydrological disaster risk coefficient is selected as the source of hydrological disaster. If it is determined that the region is not continuous, then the continuous abnormal regions and the discontinuous abnormal regions are obtained. The hydrological disaster risk coefficients of the continuous abnormal regions are compared, and the abnormal region corresponding to the largest hydrological disaster risk coefficient in the continuous abnormal regions is selected as the hydrological disaster source of the continuous abnormal region. Then, the numbers of the hydrological disaster sources corresponding to the continuous abnormal regions are counted. The coal mine underground roadway area corresponding to the listed numbers is the hydrological disaster source of the coal mine underground roadway. At the same time, the numbers of the hydrological disaster sources corresponding to the discontinuous abnormal regions are counted. The coal mine underground roadway area corresponding to the listed numbers is the hydrological disaster source of the coal mine underground roadway. This allows us to pinpoint the sources of various hydrological hazards in underground coal mine roadways.

5. The intelligent monitoring and control method for water prevention and control in coal mines according to claim 1, characterized in that, The steps for analyzing the reference drainage parameters of the left-side and right-side drainage devices for each hydrological disaster source are as follows: The flow rate, pressure, level, and velocity of groundwater from each hydrological hazard source detected by the drainage devices on the left and right sides of the underground roadway are obtained. The ratios of these values ​​are then calculated against preset threshold values ​​for flow rate, pressure, level, and velocity, respectively. Finally, the severity coefficient of the hydrological hazard detected by the drainage devices on the left side of each hydrological hazard source in the underground roadway is calculated by summing these ratios according to their respective weights. Similarly, the severity coefficients of hydrological hazards detected by the drainage devices on the right side of each hydrological hazard source in the underground roadway of the coal mine are obtained; The severity coefficients of hydrological hazards detected by the drainage devices on the left and right sides of each hydrological hazard source in the underground roadway of the coal mine are matched with the reference drainage parameters of the drainage devices corresponding to the severity coefficients of each hydrological hazard. This yields the reference drainage parameters of the drainage devices on the left and right sides of each hydrological hazard source in the underground roadway of the coal mine. The drainage parameters refer to the drainage flow rate and drainage duration.

6. The intelligent monitoring and control method for water control in coal mines according to claim 1, characterized in that, The steps for analyzing the drainage effect coefficient of the operational drainage devices corresponding to each hydrological disaster source are as follows: Extract the reference drainage parameters of the left-side and right-side drainage devices corresponding to each hydrological disaster source, and match them with the standard groundwater level drop values ​​corresponding to the reference drainage parameters of each drainage device stored in the database to obtain the standard groundwater level drop values ​​of the left-side and right-side drainage devices corresponding to each hydrological disaster source. Obtain the actual groundwater level drop value of the left-side operation drainage device corresponding to each hydrological disaster source, and calculate the ratio of the actual groundwater level drop value to the standard groundwater level drop value of the left-side operation drainage device corresponding to each hydrological disaster source to obtain the drainage effect coefficient of the left-side operation drainage device corresponding to each hydrological disaster source. Similarly, the drainage effect coefficients of the right-side drainage devices corresponding to each hydrological disaster source are obtained; The drainage effect coefficient of the left-side drainage device corresponding to each hydrological disaster source is compared with the preset drainage effect coefficient threshold. If the drainage effect coefficient of the left-side drainage device corresponding to a certain hydrological disaster source is greater than or equal to the preset drainage effect coefficient threshold, the drainage effect of the left-side drainage device corresponding to the hydrological disaster source is determined to meet the requirements. If the drainage effect coefficient of the left-side drainage device corresponding to a certain hydrological disaster source is less than the preset drainage effect coefficient threshold, the drainage effect of the left-side drainage device corresponding to the hydrological disaster source is determined to not meet the requirements. Similarly, determine whether the drainage effect of the right-side operation corresponding to each hydrological disaster source meets the requirements.

7. The intelligent monitoring and control method for water control in coal mines according to claim 1, characterized in that, The steps for analyzing the reference drainage parameters of the left-side and right-side auxiliary drainage devices for each hydrological disaster source are as follows: The difference between the drainage effect coefficient of the left-side operation drainage device of each hydrological disaster source and the preset drainage effect coefficient threshold is calculated to obtain the difference in drainage effect coefficient of the left-side operation drainage device of each hydrological disaster source. This difference is then matched with the reference drainage parameters of the left-side auxiliary operation drainage device corresponding to the preset difference in drainage effect coefficient of each left-side operation drainage device to obtain the reference drainage parameters of the left-side auxiliary operation drainage device of each hydrological disaster source. Similarly, based on the analysis method of the reference drainage parameters of the auxiliary drainage devices on the left side of each hydrological disaster source, the reference drainage parameters of the auxiliary drainage devices on the right side of each hydrological disaster source are obtained.

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