Water pressure coal unloading gas anti-reflection control method

Abstract

The invention discloses a water pressure coal unloading gas anti-reflection control method, and belongs to the technical field of mine supervision. The method is used for solving the technical problem that in an existing scheme, flexibility and diversity of water pressure coal unloading gas anti-reflection autonomous supervision and control are poor. Periodic digital processing and calculation analysis are carried out on the local implementation state of hydraulic pressure coal unloading gas anti-reflection implementation, and tracing analysis is carried out on the local implementation abnormity degree of the basic monitoring period according to a local implementation abnormity instruction obtained through analysis. A basic monitoring period is adaptively and dynamically adjusted according to a tracing analysis result, and implementation parameters of water pressure coal unloading gas anti-reflection are adjusted; the monitoring data after the basic monitoring period and the implementation parameters of the hydraulic coal unloading gas anti-reflection are adjusted are traced, processed and evaluated, and the implementation of the hydraulic coal unloading gas anti-reflection is dynamically controlled in a self-adaptive mode according to the tracing processing and evaluation result.

Description

Technical Field

[0001] The present invention relates to the technical field of mine supervision, and particularly relates to a control method for enhancing gas permeability by hydraulic pressure for coal unloading. Background Art

[0002] The technology of enhancing gas permeability by hydraulic pressure for coal unloading is a technology used to improve the efficiency of coal seam gas extraction. Its core lies in improving the permeability of the coal seam through hydraulic action, thereby promoting the flow and extraction of gas; this method is usually applied to low-permeability coal seams, that is, those coal seams where gas is difficult to be extracted through natural permeation due to geological structure or other reasons.

[0003] Although the control technology of enhancing gas permeability by hydraulic pressure for coal unloading can effectively improve the permeability of the coal seam and the efficiency of gas extraction, it still faces some challenges and defects in practical applications; when the existing control schemes for enhancing gas permeability by hydraulic pressure for coal unloading are implemented, they cannot conduct periodic supervision and analysis on the implementation process of enhancing gas permeability by hydraulic pressure for coal unloading, and dynamically adjust the subsequent implementation of enhancing gas permeability by hydraulic pressure for coal unloading adaptively according to the results of periodic supervision and analysis, resulting in poor flexibility and diversity in the autonomous supervision and control of enhancing gas permeability by hydraulic pressure for coal unloading. Summary of the Invention

[0004] The purpose of the present invention is to provide a control method for enhancing gas permeability by hydraulic pressure for coal unloading, which is used to solve the technical problem of poor flexibility and diversity in the autonomous supervision and control of enhancing gas permeability by hydraulic pressure for coal unloading in the existing schemes.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A control method for enhancing gas permeability by hydraulic pressure for coal unloading, comprising: Obtaining the geological data corresponding to the implementation of enhancing gas permeability by hydraulic pressure for coal unloading, and performing standardization processing on the geological data to obtain corresponding standard control data; Performing periodic monitoring data processing and evaluation on the whole process of implementing enhancing gas permeability by hydraulic pressure for coal unloading, and dynamically adjusting the basic monitoring period adaptively according to the evaluation results and adjusting the implementation parameters of enhancing gas permeability by hydraulic pressure for coal unloading; Performing traceability processing and evaluation on the monitoring data after adjusting the basic monitoring period and the implementation parameters of enhancing gas permeability by hydraulic pressure for coal unloading, and dynamically controlling the implementation of enhancing gas permeability by hydraulic pressure for coal unloading adaptively according to the results of traceability processing and evaluation.

[0006] Preferably, when monitoring the geology corresponding to the implementation of enhancing gas permeability by hydraulic pressure for coal unloading, obtaining the underground position where the coal seam is located, the physical properties of the coal seam, and the vertical thickness of the coal seam; Obtaining whether there are influencing targets in the coal seam and the corresponding influencing positions and influencing vertical thicknesses; the influencing targets include fissures, faults, and folds; Obtaining the physical properties of the rocks above and below the coal seam and the corresponding vertical thicknesses of the rocks; Sort and combine the monitored and statistically analyzed data items to obtain geological data; When performing standardization processing on the geological data, based on the historical data of water pressure relief coal and gas permeability enhancement, obtain all historical construction data corresponding to the coal seam, influence target, and rock, and acquire the standard permeability corresponding to different construction timestamps during the implementation of water pressure relief coal and gas permeability enhancement; Arrange and combine the standard permeabilities corresponding to different construction timestamps in chronological order to obtain standard control data.

[0007] Preferably, when starting to implement water pressure relief coal and gas permeability enhancement, perform real-time monitoring and statistics on the numerical changes of the permeability. When the numerical value of the permeability changes, generate a supervision instruction, and obtain the initial change timestamp corresponding to the change in the permeability value according to the supervision instruction, and obtain the change evaluation timestamp corresponding to the time to be evaluated according to the monitoring duration corresponding to the preset basic monitoring period; When the real-time Beijing time is the change evaluation timestamp, generate an evaluation instruction, and obtain the monitored permeability JLi corresponding to the change evaluation timestamp, i = 1, 2, 3,..., n; n is a positive integer; i is different change evaluation timestamps; and calculate and obtain the implementation validity corresponding to the change evaluation timestamp through the implementation effective formula; Analyze the local implementation status of the water pressure relief coal and gas permeability enhancement corresponding to the change evaluation timestamp according to the implementation validity; If the implementation validity is 0, generate a local implementation normal instruction and maintain the existing monitoring and analysis plan for the next basic monitoring period; If the implementation validity is not 0, generate a local implementation abnormal instruction.

[0008] Preferably, the implementation effective formula is ; where KXi is the implementation validity corresponding to the change evaluation timestamp; JLi0 is the standard permeability corresponding to the change evaluation timestamp; U is the standard error rate range.

[0009] Preferably, according to the local implementation abnormal instruction, calculate and obtain the implementation abnormality degree SYi of the water pressure relief coal and gas permeability enhancement corresponding to the change evaluation timestamp through the formula ; where is the maximum value of the standard error rate range; When determining the local implementation abnormality degree of the water pressure relief coal and gas permeability enhancement corresponding to the change evaluation timestamp according to the implementation abnormality degree, analyze the implementation abnormality degree and adaptively and dynamically adjust the basic monitoring period and adjust the implementation parameters of the water pressure relief coal and gas permeability enhancement.

[0010] Preferably, if the implementation abnormality degree is less than or equal to 0, generate an implementation mild abnormality instruction and give a prompt. At the same time, shorten the duration of the basic monitoring cycle according to the implementation severe abnormality instruction to conduct subsequent monitoring; If the implementation abnormality degree is greater than 0, generate an implementation severe abnormality instruction and give a prompt. At the same time, shorten the duration of the basic monitoring cycle according to the implementation severe abnormality instruction to conduct subsequent monitoring, and adjust the implementation parameters of the hydraulic pressure coal unloading and gas permeability enhancement.

[0011] Preferably, when evaluating the retrospective processing of the adjusted monitoring data, count the monitoring permeability of the corresponding change evaluation timestamps after adjusting the basic monitoring cycle, and calculate the retrospective implementation validity corresponding to the change evaluation timestamps through the implementation of effective formulas. Analyze the retrospective implementation validity and adaptively conduct dynamic control over the implementation of the hydraulic pressure coal unloading and gas permeability enhancement.

[0012] Preferably, if the retrospective implementation validity is 0, maintain the existing adjusted implementation plan; If the retrospective implementation validity is not 0, suspend the subsequent implementation of the hydraulic pressure coal unloading and gas permeability enhancement and formulate a new construction plan.

[0013] Compared with the existing solution, the beneficial effects achieved by the present invention are as follows: By conducting data monitoring, statistics, and processing from the dimension of the coal seam object for implementing the hydraulic pressure coal unloading and gas permeability enhancement, the present invention can provide reliable standardized data support for the periodic monitoring data processing and evaluation of the entire process of implementing the hydraulic pressure coal unloading and gas permeability enhancement.

[0014] By conducting periodic digital processing, calculation, and analysis on the local implementation status of the implementation of the hydraulic pressure coal unloading and gas permeability enhancement, and retrospectively analyzing the local implementation abnormality degree of the basic monitoring cycle according to the local implementation abnormality instruction obtained from the analysis, and adaptively and dynamically adjusting the basic monitoring cycle and the implementation parameters of the hydraulic pressure coal unloading and gas permeability enhancement according to the retrospective analysis results, the present invention realizes the autonomous optimization and adjustment for different abnormal situations to meet different abnormal supervision requirements, and improves the flexibility and reliability of the autonomous supervision and control of the hydraulic pressure coal unloading and gas permeability enhancement during local implementation abnormality supervision.

[0015] By conducting retrospective processing and evaluation on the monitoring data after adjusting the basic monitoring cycle and the implementation parameters of the hydraulic pressure coal unloading and gas permeability enhancement, and adaptively conducting dynamic control over the implementation of the hydraulic pressure coal unloading and gas permeability enhancement according to the retrospective processing and evaluation results, the present invention realizes the retrospective supervision and control of the adjustment effects after the autonomous optimization and adjustment for different abnormal situations, and improves the flexibility and diversity of the autonomous supervision and control of the hydraulic pressure coal unloading and gas permeability enhancement during local implementation abnormality adjustment supervision. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a flowchart of a control method for enhancing gas permeability by hydraulic pressure coal unloading in the present invention. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figure 1 shown, the present invention is a control method for enhancing gas permeability by hydraulic pressure coal unloading, including: Obtain geological data corresponding to the implementation of enhancing gas permeability by hydraulic pressure coal unloading, and perform standardization processing on the geological data to obtain corresponding standard control data; Among them, when monitoring the geology corresponding to the implementation of enhancing gas permeability by hydraulic pressure coal unloading, obtain the underground position where the coal seam is located, the physical properties of the coal seam, and the vertical thickness of the coal seam; In addition, the underground position of the coal seam can be represented by an existing geological coordinate system, and the determination of the underground position of the coal seam can be achieved through existing geological exploration technologies. The specific implementation steps are not elaborated here; in the embodiments of the present invention, the unit of the vertical thickness of the coal seam and the subsequent influencing vertical thickness and the vertical thickness of the rock is meter; Obtain whether there are influencing targets in the coal seam, as well as the corresponding influencing positions and influencing vertical thicknesses; the influencing targets include fissures, faults, and folds; whether there are influencing targets in the coal seam can also be achieved based on existing geological exploration technologies; It should be explained that the influencing targets will affect the trend and distribution of the fractures and have an impact on the fracturing effect. Therefore, in the embodiments of the present invention, monitoring and statistics of the data of the coal seam and the influencing targets can effectively improve the accuracy of subsequent data processing and analysis; Obtain the physical properties of the rocks above and below the coal seam and the corresponding vertical thicknesses of the rocks; Sort and combine the monitored and statistically obtained data to obtain geological data; When performing standardization processing on the geological data, according to all historical construction data corresponding to the historical implementation of enhancing gas permeability by hydraulic pressure coal unloading of the coal seam, influencing targets, and rocks, obtain the standard permeability corresponding to different construction timestamps when implementing enhancing gas permeability by hydraulic pressure coal unloading in the construction geology; Arrange and combine the standard permeabilities corresponding to different construction timestamps in chronological order to obtain standard control data; In the embodiments of the present invention, by performing data monitoring, statistics, and processing from the dimension of the coal seam object for implementing hydraulic pressure relief coal mining and gas permeability enhancement, reliable standardized data support can be provided for the periodic monitoring data processing and evaluation of the entire process of implementing hydraulic pressure relief coal mining and gas permeability enhancement in the subsequent stage; Perform periodic monitoring data processing and evaluation on the entire process of implementing hydraulic pressure relief coal mining and gas permeability enhancement, and adaptively and dynamically adjust the basic monitoring period and the implementation parameters of hydraulic pressure relief coal mining and gas permeability enhancement according to the evaluation results; including: When starting to implement hydraulic pressure relief coal mining and gas permeability enhancement, perform real-time monitoring and statistics on the numerical change of the permeability. When the numerical value of the permeability changes, generate a supervision instruction, and obtain the corresponding initial change timestamp when the permeability numerical value changes according to the supervision instruction, and obtain the corresponding change evaluation timestamp for evaluation according to the monitoring duration corresponding to the preset basic monitoring period; the units of the initial change timestamp and the change evaluation timestamp are both accurate to seconds; Among them, the monitoring and acquisition of the permeability include but are not limited to obtaining through micro-fracture vector scanning monitoring and ultrasonic wave reflection monitoring. The specific implementation steps are not elaborated here; The preset basic monitoring period is evenly divided according to the standard construction total duration corresponding to the standard control data, and the equal division ratio is customized according to the actual application scenario; When the real-time Beijing time is the change evaluation timestamp, generate an evaluation instruction, and obtain the monitored permeability JLi corresponding to the change evaluation timestamp according to the evaluation instruction, i = 1, 2, 3,..., n; n is a positive integer; i is different change evaluation timestamps; and through the implementation of the effective formula Calculate and obtain the implementation validity KXi corresponding to the change evaluation timestamp; in the formula, JLi0 is the standard permeability corresponding to the change evaluation timestamp, which is obtained according to the previously processed standard control data; U is the standard error rate range, which is determined according to the existing data of the implementation design requirements of hydraulic pressure relief coal mining and gas permeability enhancement; It should be noted that the implementation validity is used to digitally represent the local implementation state of the implementation of hydraulic pressure relief coal mining and gas permeability enhancement; Analyze the local implementation state of the hydraulic pressure relief coal mining and gas permeability enhancement corresponding to the change evaluation timestamp according to the implementation validity; If the implementation validity is 0, generate a local implementation normal instruction and maintain the existing monitoring and analysis scheme for the next basic monitoring period; If the implementation validity is not 0, generate a local implementation abnormal instruction; In the embodiments of the present invention, the corresponding implementation validity is obtained through periodic monitoring, processing, and calculation of the state data of the implementation of hydraulic pressure relief coal mining and gas permeability enhancement. Through the implementation validity, the local state of the implementation of hydraulic pressure relief coal mining and gas permeability enhancement can be digitally represented, and reliable data support can be provided for the subsequent analysis of the local implementation abnormal degree; According to the local implementation exception instruction, through the formula calculate and obtain the implementation exception degree SYi of the water pressure coal unloading and gas drainage enhancement corresponding to the change evaluation timestamp; in the formula, is the maximum value of the standard error rate range; It should be noted that the implementation exception degree is used to digitally represent the local implementation exception degree of the water pressure coal unloading and gas drainage enhancement implementation; When determining the local implementation exception degree of the water pressure coal unloading and gas drainage enhancement corresponding to the change evaluation timestamp according to the implementation exception degree, analyze the implementation exception degree; If the implementation exception degree is less than or equal to 0, generate an implementation mild exception instruction and prompt, and at the same time shorten the duration of the basic monitoring cycle according to the implementation severe exception instruction for subsequent monitoring; the shortened duration of the basic monitoring cycle can specifically be half of the corresponding duration of the basic monitoring cycle; If the implementation exception degree is greater than 0, generate an implementation severe exception instruction and prompt, and at the same time shorten the duration of the basic monitoring cycle according to the implementation severe exception instruction for subsequent monitoring, and adjust the implementation parameters of the water pressure coal unloading and gas drainage enhancement; Among them, adjusting the implementation parameters of the water pressure coal unloading and gas drainage enhancement is determined according to the sign corresponding to the corresponding exception rate, where the exception rate is ; when the sign corresponding to the exception rate is a positive sign, perform an adjustment to reduce the implementation parameters; when the sign corresponding to the exception rate is a negative sign, perform an adjustment to strengthen the implementation parameters; both the adjustment to strengthen the implementation parameters or the adjustment to reduce the implementation parameters are determined based on the existing water pressure coal unloading and gas drainage enhancement adjustment requirement data, and the implementation parameters can specifically be water pressure parameters; In the embodiment of the present invention, through periodic digital processing and calculation analysis of the local implementation state of the water pressure coal unloading and gas drainage enhancement implementation, and retrospective analysis of the local implementation exception degree of the basic monitoring cycle according to the local implementation exception instruction obtained by the analysis, and adaptively dynamically adjusting the basic monitoring cycle and adjusting the implementation parameters of the water pressure coal unloading and gas drainage enhancement according to the retrospective analysis result, it realizes autonomous optimization adjustment for different abnormal situations to meet different abnormal supervision requirements, and improves the flexibility and reliability of the autonomous supervision and control of the water pressure coal unloading and gas drainage enhancement during local implementation exception supervision.

[0020] Perform retrospective processing and evaluation on the monitoring data after adjusting the basic monitoring cycle and adjusting the implementation parameters of the water pressure coal unloading and gas drainage enhancement, and dynamically control the implementation of the water pressure coal unloading and gas drainage enhancement adaptively according to the retrospective processing and evaluation result; including: When performing retrospective processing and evaluation on the adjusted monitoring data, count the monitoring permeability of the subsequent change evaluation timestamp corresponding to the adjusted basic monitoring cycle and calculate and obtain the retrospective implementation validity corresponding to the change evaluation timestamp through the implementation effective formula, and analyze the retrospective implementation validity; Option 1: If the retrospective implementation validity is 0, then maintain the existing adjustment implementation plan; If the retrospective implementation validity is not 0, then suspend the subsequent implementation of hydraulic pressure coal unloading and gas boosting and formulate a new construction plan; Option 2: If the retrospective implementation validity is 0, then maintain the existing adjustment implementation plan; If the retrospective implementation validity is not 0, then determine the corresponding previous adjustment plan. If the adjustment plan only shortens the duration of the basic monitoring period, then adjust the implementation parameters of hydraulic pressure coal unloading and gas boosting and conduct secondary retrospective processing and evaluation on the subsequent monitored data after adjustment. When the retrospective implementation validity corresponding to the secondary retrospective processing and evaluation is still not 0, then suspend the subsequent implementation of hydraulic pressure coal unloading and gas boosting and formulate a new construction plan; If the adjustment plan is to shorten the duration of the basic monitoring period for subsequent monitoring and adjust the implementation parameters of hydraulic pressure coal unloading and gas boosting, then suspend the subsequent implementation of hydraulic pressure coal unloading and gas boosting and formulate a new construction plan; It can be understood that the non - zero retrospective implementation validity after adjustment indicates that the implementation of the corresponding adjustment plan has not achieved a substantial adjustment effect. Therefore, manual intervention is required to formulate corresponding solutions for the existing anomalies to avoid greater negative impacts caused by the anomalies existing in the implementation of hydraulic pressure coal unloading and gas boosting; Among them, formulating a new construction plan is optimized and adjusted by professional technical personnel in this field according to the existing implementation plan of hydraulic pressure coal unloading and gas boosting and geological data.

[0021] In the embodiments of the present invention, by conducting retrospective processing and evaluation on the monitored data after adjusting the basic monitoring period and the implementation parameters of hydraulic pressure coal unloading and gas boosting, and adaptively dynamically controlling the implementation of hydraulic pressure coal unloading and gas boosting according to the results of the retrospective processing and evaluation, the retrospective supervision and control of the adjusted effects of independent optimization for different abnormal situations are realized, and the flexibility and diversity of the independent supervision and control of hydraulic pressure coal unloading and gas boosting during local implementation abnormal adjustment supervision are improved.

[0022] In addition, the formulas involved above are all calculated by removing the dimension and taking their numerical values, and are obtained by a software through simulating a large amount of data to get a formula closest to the real situation.

[0023] In several embodiments provided by the present invention, it should be understood that the disclosed method can be implemented in other ways. For example, the above - described invention embodiments are merely illustrative. For example, the division of modules is only a logical function division, and there can be other division methods in actual implementation.

[0024] The modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical modules. They may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0025] In addition, in each embodiment of the present invention, the various functional modules may be integrated into one processing module, or each module may exist physically alone, or two or more modules may be integrated into one module. The above integrated modules may be implemented in the form of hardware, or in the form of a combination of hardware and software functional modules.

[0026] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for controlling gas permeability during hydraulic coal unloading, characterized in that: include: Obtain geological data corresponding to the implementation of hydraulic coal unloading gas permeability enhancement, and perform standard processing on the geological data to obtain corresponding standard control data; Conduct periodic monitoring data processing and evaluation of the entire process of implementing hydraulic coal unloading gas permeability enhancement, and dynamically and adaptively adjust the basic monitoring cycle and the implementation parameters of hydraulic coal unloading gas permeability enhancement according to the evaluation results; The monitoring data after adjusting the basic monitoring cycle and the implementation parameters of water pressure coal unloading gas permeability enhancement are retroactively processed and evaluated, and the implementation of water pressure coal unloading gas permeability enhancement is dynamically controlled adaptively based on the retroactive processing and evaluation results.

2. A method for controlling gas permeability during hydraulic coal unloading according to claim 1, characterized in that: When monitoring the geology corresponding to the implementation of hydraulic coal unloading gas permeability enhancement, obtain the underground location of the coal seam, the physical properties of the coal seam and the vertical thickness of the coal seam; Obtain whether there are influencing targets in the coal seam and the corresponding influencing positions and influencing vertical thicknesses; influencing targets include cracks, faults, and folds; Obtain the physical properties of the rocks above and below the coal seam and the corresponding vertical thickness of the rocks; Sort and combine the various monitoring and statistical data to obtain geological data; When the geological data is standardized, the standard permeability corresponding to different construction time stamps when the hydraulic unloading gas permeability enhancement was implemented in the construction geology is obtained according to all historical construction data corresponding to the coal seam, the impact target and the rock in the history of hydraulic unloading gas permeability enhancement; The standard permeabilities corresponding to different construction time stamps are arranged and combined in chronological order to obtain standard control data.

3. A method for controlling gas permeability during hydraulic coal unloading according to claim 2, characterized in that: When the hydraulic coal unloading gas permeability enhancement is implemented, the numerical changes of the permeability are monitored and counted in real time. When the numerical value of the permeability changes, a supervision instruction is generated, and the initial change timestamp corresponding to the change of the permeability value is obtained according to the supervision instruction, and the change evaluation timestamp corresponding to the time to be evaluated is obtained according to the monitoring time corresponding to the preset basic monitoring cycle; When the real-time Beijing time is the change evaluation timestamp, an evaluation instruction is generated, and the monitoring permeability JLi corresponding to the change evaluation timestamp is obtained according to the evaluation instruction, i=1, 2, 3, ..., n; n is a positive integer; i is a different change evaluation timestamp; And obtain the implementation validity corresponding to the change assessment timestamp by implementing the effective formula calculation; According to the implementation validity, the local implementation status of gas permeability enhancement of water pressure coal unloading corresponding to the change assessment time stamp is analyzed; If the implementation calibration degree is 0, a normal instruction for local implementation is generated and the existing monitoring and analysis plan is maintained for the next basic monitoring cycle; If the implementation calibration is not zero, a local implementation exception instruction is generated.

4. A method for controlling gas permeability during hydraulic coal unloading according to claim 3, characterized in that: The effective formula for implementation is ; Where KXi is the implementation validity corresponding to the change assessment timestamp; JLi0 is the standard permeability corresponding to the change assessment timestamp; U is the standard error rate range.

5. A method for controlling gas permeability during hydraulic coal unloading according to claim 3, characterized in that: According to the local implementation of the exception instruction through the formula calculate is the maximum value of the standard error rate range; When the local implementation abnormality degree of water pressure coal unloading gas permeability enhancement corresponding to the change evaluation timestamp is determined according to the implementation abnormality degree, the implementation abnormality degree is analyzed and the basic monitoring cycle and the implementation parameters of water pressure coal unloading gas permeability enhancement are adaptively adjusted dynamically.

6. A method for controlling gas permeability during hydraulic coal unloading according to claim 5, characterized in that: If the implementation abnormality is less than or equal to 0, a mild abnormality instruction is generated and prompted, and the duration of the basic monitoring cycle is shortened according to the implementation of the severe abnormality instruction to conduct subsequent monitoring; If the implementation abnormality is greater than 0, a severe abnormality instruction is generated and prompted. At the same time, the duration of the basic monitoring cycle is shortened according to the severe abnormality instruction to carry out subsequent monitoring, and the implementation parameters of water pressure coal unloading gas permeability enhancement are adjusted.

7. A method for controlling gas permeability during hydraulic coal unloading according to claim 6, characterized in that: When retrospectively processing and evaluating the adjusted monitoring data, the monitoring permeability of the corresponding change evaluation timestamp after the basic monitoring period is statistically adjusted, and the traceability implementation validity corresponding to the change evaluation timestamp is obtained by implementing the effective formula. The traceability implementation validity is analyzed and the implementation of water pressure coal unloading gas permeability enhancement is dynamically controlled adaptively.

8. A method for controlling gas permeability during hydraulic coal unloading according to claim 7, characterized in that: If the retrospective implementation validity is 0, the existing adjustment implementation plan is maintained; If the retrospective implementation effectiveness is not 0, the subsequent implementation of hydraulic coal unloading and gas permeability enhancement will be suspended and a new construction plan will be formulated.

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