Method and device for determining comprehensive collapse mining ratio and comprehensive fracture mining ratio of short-distance coal seam

Abstract

The invention provides a method and device for determining the comprehensive caving-mining ratio and the comprehensive fracture-mining ratio of a close-range coal seam, and the method comprises the steps: determining the size relation between the interlayer spacing of the close-range coal seam and the height of a caving zone of a lower coal seam; under the condition that the interlayer spacing is larger than the height of a caving zone of the lower coal seam, the height of a comprehensive water guiding fracture zone is determined, and the comprehensive fracture mining ratio is determined according to the height of the comprehensive water guiding fracture zone; or, under the condition that the interlayer spacing is smaller than or equal to the height of the caving zone of the lower coal seam, according to the relation between the comprehensive mining thickness and the mining thickness of the lower coal seam, the height of the comprehensive caving zone and the height of the comprehensive water guiding fracture zone are determined, and according to the height of the comprehensive caving zone and the height of the comprehensive water guiding fracture zone, the comprehensive caving-mining ratio and the comprehensive fracture-mining ratio are determined. By fully considering special mining geological conditions of the close-range coal seam and analyzing different parameter relationships, the comprehensive collapse mining ratio and the comprehensive fracture mining ratio can be accurately determined, and the method is suitable for close-range coal seam mining under the conditions of thin coal seams, medium-thickness coal seams and thick coal seams.

Description

Technical Field

[0001] This application relates to the field of coal mine water hazard prevention technology, and in particular to a method and apparatus for determining the comprehensive caving ratio and comprehensive fracturing ratio of closely spaced coal seams. Background Technology

[0002] In coal mining, accurately determining the comprehensive caving ratio and comprehensive cracking ratio is crucial for mining close-proximity coal seams. These parameters not only affect the safety of coal mining but also relate to the rational development and utilization of resources. Currently, for mining close-proximity coal seams under water bodies, the "Specifications for the Retention of Coal Pillars and Coal Mining under Buildings, Water Bodies, Railways and Main Shafts" and the "Guidelines for the Retention of Coal Pillars and Coal Mining under Buildings, Water Bodies, Railways and Main Shafts" (2017 edition) propose methods for determining the development height of water-conducting fracture zones in close-proximity coal seam mining, but do not mention methods for determining the comprehensive caving ratio and comprehensive cracking ratio. In actual close-proximity coal seam mining, the interlayer distance between upper and lower coal seams is usually not a fixed value but a range. Measuring the height of the caving zone and water-conducting fracture zone at every working face in the mine is costly, labor-intensive, and impractical. In such cases, a typical working face is usually selected for measurement, and the comprehensive caving ratio and comprehensive cracking ratio are used as analogies for other working faces to obtain the development height of the caving zone and water-conducting fracture zone at the close-proximity coal seam working face. Therefore, accurately determining the comprehensive scraping ratio and comprehensive fracturing ratio of closely spaced coal seams is crucial.

[0003] Literature review shows that existing methods for determining the comprehensive caving ratio and comprehensive cracking ratio of close-range coal seams are only applicable to thick coal seams, and the fitted comprehensive mining thickness calculation formula is not universally applicable. This leads to inaccurate determination of the comprehensive caving ratio and comprehensive cracking ratio, which may cause a series of problems, such as roof accidents and roof water inrush. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, this application proposes a method, apparatus, electronic device, and storage medium.

[0006] One embodiment of this application proposes a method for determining the comprehensive scrapping ratio and comprehensive fracturing ratio of closely spaced coal seams, including: Determine the relationship between the interlayer spacing of closely spaced coal seams and the height of the caving zone of the lower coal seam; wherein, the closely spaced coal seams include the upper coal seam and the lower coal seam; When the interlayer spacing is greater than the height of the lower coal seam caving zone, the height of the comprehensive water-conducting fracture zone is determined, and the comprehensive fracture-to-mining ratio is determined based on the height of the comprehensive water-conducting fracture zone; or... When the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, the height of the comprehensive caving zone and the height of the comprehensive water-conducting fracture zone are determined according to the relationship between the comprehensive mining thickness and the lower coal seam mining thickness, and the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio are determined according to the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio.

[0007] Optionally, when the interlayer spacing is greater than the height of the lower coal seam caving zone, determining the height of the comprehensive water-conducting fracture zone and determining the comprehensive fracture-to-production ratio based on the height of the comprehensive water-conducting fracture zone includes: The distance from the roof elevation of the lower coal seam to the first target elevation is defined as the height of the comprehensive water-conducting fracture zone; wherein, the first target elevation is the elevation of the highest point among the development height of the water-conducting fracture zone of the upper coal seam and the development height of the water-conducting fracture zone of the lower coal seam. The ratio of the height of the integrated water-conducting fracture zone to the mining thickness of the lower coal seam is determined as the integrated fracture-mining ratio.

[0008] Optionally, when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, determining the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the lower coal seam mining thickness includes: When the overall mining thickness is greater than or equal to the lower coal seam mining thickness, the distance from the lower coal seam roof elevation to the second target elevation is determined as the overall caving zone height, and the second target elevation is the elevation of the highest point among the upper coal seam caving zone development height and the overall mining thickness caving zone development height. The distance from the elevation of the lower coal seam roof to the third target elevation is defined as the height of the comprehensive water-conducting fracture zone; wherein, the third target elevation is the elevation of the highest point among the development height of the upper coal seam water-conducting fracture zone and the development height of the comprehensive mining thickness water-conducting fracture zone.

[0009] Optionally, determining the comprehensive caving-to-production ratio and the comprehensive fracture-to-production ratio based on the comprehensive caving zone height and the comprehensive water-conducting fracture zone height includes: The overall caving zone height is divided by the overall mining thickness to obtain the overall caving-mining ratio; The integrated fracture-production ratio is obtained by dividing the height of the integrated water-conducting fracture zone by the integrated production thickness.

[0010] Optionally, when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, determining the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the lower coal seam mining thickness includes: When the overall mining thickness is less than the lower coal seam mining thickness, the distance from the lower coal seam roof elevation to the fourth target elevation is determined as the overall caving zone height; wherein, the fourth target elevation is the elevation of the highest point among the upper coal seam caving zone development height and the lower coal seam caving zone development height. The distance from the elevation of the lower coal seam roof to the fifth target elevation is determined as the height of the comprehensive water-conducting fracture zone, wherein the fifth target elevation is the elevation of the highest point among the development heights of the upper and lower coal seam water-conducting fracture zones.

[0011] Optionally, determining the comprehensive caving-to-production ratio and the comprehensive fracture-to-production ratio based on the comprehensive caving zone height and the comprehensive water-conducting fracture zone height includes: The overall caving zone height is divided by the lower coal seam mining thickness to obtain the overall caving ratio. The comprehensive water-conducting fracture zone height is divided by the lower coal seam mining thickness to obtain the comprehensive fracture-to-mining ratio.

[0012] Another embodiment of this application proposes a device for determining the comprehensive scrapping ratio and comprehensive fracturing ratio of close-range coal seams, including: The comparison module is used to determine the relationship between the interlayer spacing of closely spaced coal seams and the height of the caving zone of the lower coal seam; wherein, the closely spaced coal seams include the upper coal seam and the lower coal seam; The first analysis module is used to determine the height of the comprehensive water-conducting fracture zone when the interlayer spacing is greater than the height of the lower coal seam caving zone, and to determine the comprehensive fracture-mining ratio based on the height of the comprehensive water-conducting fracture zone. The second analysis module is used to determine the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the overall water-conducting fracture zone height when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, and to determine the overall caving-to-mining ratio and the overall fracture-to-mining ratio based on the overall caving zone height and the overall water-conducting fracture zone height.

[0013] Another embodiment of this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method described in the foregoing aspect.

[0014] Another embodiment of this application proposes a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in the foregoing aspect.

[0015] Another embodiment of this application proposes a chip including processing circuitry configured to perform the method described in one aspect above.

[0016] Another embodiment of this application proposes a computer program product that, when executed by a processor, implements the method described in the foregoing aspect.

[0017] The method, apparatus, electronic equipment, chip, and storage medium for determining the comprehensive scrapping ratio and comprehensive fracturing ratio of closely spaced coal seams proposed in this application can achieve the following beneficial effects: Improving mining safety: Accurately determining the comprehensive collapse ratio and comprehensive cracking ratio is conducive to rationally determining the height of the waterproof coal (rock) pillar, which helps coal mining enterprises to better predict problems such as roof collapse and roof water inrush that may occur during the mining process, and take corresponding protective measures in advance to achieve safe mining of coal seams in close proximity to water bodies.

[0018] Optimize resource utilization: A reasonable comprehensive cross-mining ratio and comprehensive splitting ratio can guide coal mining enterprises to formulate more scientific mining plans, improve the recovery rate of coal resources, reduce resource waste, and achieve efficient resource utilization.

[0019] Adaptable to complex geological conditions: This method fully considers the special geological conditions of mining close-range coal seams. Through the analysis of the relationship between different parameters, it can accurately determine the comprehensive scraping ratio and the comprehensive cracking ratio. It is applicable to the mining of close-range coal seams in thin, medium-thick, and thick coal seams.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A flowchart illustrating a method for determining the comprehensive scrambling ratio and comprehensive fracturing ratio of a closely spaced coal seam, provided in an embodiment of this application; Figure 2 A flowchart illustrating a method for determining the comprehensive scrambling ratio and comprehensive fracturing ratio of a closely spaced coal seam, provided in an embodiment of this application; Figure 3 This is a schematic diagram of a water-conducting fracture zone provided in an embodiment of this application; Figure 4 This is a schematic diagram of a water-conducting fracture zone provided in an embodiment of this application; Figure 5 A schematic diagram of a device for determining the comprehensive scraping ratio and comprehensive fracturing ratio of a close-range coal seam, provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a chip proposed in an embodiment of this application. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0023] The following description, with reference to the accompanying drawings, describes a method, apparatus, electronic device, chip, and storage medium for determining the comprehensive scrapping ratio and comprehensive cracking ratio of close-range coal seams according to embodiments of this application.

[0024] Figure 1 This is a flowchart illustrating a method for determining the comprehensive scrapping ratio and comprehensive fracturing ratio of a closely spaced coal seam, as provided in an embodiment of this application.

[0025] As one implementation, the method for determining the comprehensive caving ratio and comprehensive fracturing ratio of a nearby coal seam in this application embodiment can be configured in a device for determining the comprehensive caving ratio and comprehensive fracturing ratio of a nearby coal seam. This device can be applied to any electronic device so that the electronic device can perform the function of determining the comprehensive caving ratio and comprehensive fracturing ratio of a nearby coal seam.

[0026] Among them, electronic devices can be any device with computing capabilities, such as mobile terminals, which can be hardware devices with various operating systems, touch screens and / or displays, such as mobile phones, tablets, personal digital assistants, wearable devices, etc.

[0027] As another implementation, the method for determining the comprehensive scraping ratio and comprehensive fracturing ratio of close-range coal seams in this application embodiment can also be executed by a chip with processing capabilities. The chip includes an image signal processing chip (ISP), a central processing unit (CPU), an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a field-programmable gate array (FPGA), a system on a chip (SOC), a reduced instruction set computer (RISC), etc., which will not be listed here.

[0028] It should be noted that all data collection operations related to users in this application are conducted with the user's authorization and in strict compliance with relevant laws and regulations such as privacy and security.

[0029] like Figure 1 As shown, the method may include the following steps: Step 101: Determine the relationship between the interlayer spacing of closely spaced coal seams and the height of the caving zone of the lower coal seam; wherein, the closely spaced coal seams include the upper coal seam and the lower coal seam; Step 102: If the interlayer spacing of the coal seam is greater than the height of the caving zone of the lower coal seam, determine the height of the comprehensive water-conducting fracture zone, and determine the comprehensive fracture-to-mining ratio based on the height of the comprehensive water-conducting fracture zone; or, Step 103: When the interlayer spacing of the coal seam is less than or equal to the height of the caving zone of the lower coal seam, determine the height of the comprehensive caving zone and the height of the comprehensive water-conducting fracture zone based on the relationship between the comprehensive mining thickness and the mining thickness of the lower coal seam, and determine the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio based on the comprehensive caving-to-mining ratio and the comprehensive water-conducting fracture zone height.

[0030] In this embodiment, accurately determining the comprehensive caving ratio and comprehensive cracking ratio is crucial for mining closely spaced coal seams during the coal mining process. These parameters not only affect the safety of coal mining but also relate to the rational development and utilization of resources. A review of literature and materials reveals that existing methods for determining the comprehensive caving ratio and comprehensive cracking ratio of closely spaced coal seams are only applicable to thick coal seams, and the fitted comprehensive mining thickness calculation formula lacks universality. The method for determining the comprehensive caving ratio and comprehensive cracking ratio of closely spaced coal seams provided by this invention aims to accurately determine these ratios by systematically analyzing the relationship between the interlayer spacing of coal seams and the height of the caving zone of the lower coal seam, as well as the relationship between the comprehensive mining thickness and the mining thickness of the lower coal seam, thus providing a scientific basis for the safe and efficient mining of closely spaced coal seams.

[0031] Determining the relationship between interlayer spacing and caving zone height: First, it is clear that the closely spaced coal seams consist of an upper coal seam and a lower coal seam. The relationship between the interlayer spacing and the caving zone height of the lower coal seam is determined by measurement and analysis. This relationship is the basis for subsequently determining the comprehensive caving ratio and the comprehensive splitting ratio.

[0032] Parameters are determined based on different relationships: When the interlayer spacing of a coal seam is greater than the height of the caving zone of the lower coal seam: In this case, the caving zone height is determined separately according to the caving zone heights of the upper and lower coal seams, and the caving-to-mining ratio of the upper and lower coal seams is determined separately according to the caving zone heights of the upper and lower coal seams and their respective mining thicknesses. The overall fracturing-to-mining ratio is determined based on the overall water-conducting fracture zone height and the mining thickness of the lower coal seam.

[0033] If the interlayer spacing of the coal seam is less than or equal to the height of the caving zone of the lower coal seam: In this case, it is necessary to further determine the height of the comprehensive caving zone and the height of the comprehensive water-conducting fracture zone based on the relationship between the comprehensive mining thickness and the mining thickness of the lower coal seam, and then obtain the comprehensive caving-mining ratio and the comprehensive fracture-mining ratio.

[0034] Analysis of beneficial effects: Improving mining safety: Accurately determining the comprehensive collapse ratio and comprehensive cracking ratio is conducive to reasonably reserving the height of waterproof coal (rock) pillars, which helps coal mining enterprises to better predict problems such as roof collapse and roof water inrush that may occur during the mining process, and take corresponding protective measures in advance to achieve safe mining of coal seams in close proximity to water bodies.

[0035] Optimize resource utilization: A reasonable comprehensive cross-mining ratio and comprehensive splitting ratio can guide coal mining enterprises to formulate more scientific mining plans, improve the recovery rate of coal resources, reduce resource waste, and achieve efficient resource utilization.

[0036] Adaptable to complex geological conditions: This method fully considers the special geological conditions of mining close-range coal seams. Through the analysis of the relationship between different parameters, it can accurately determine the comprehensive scraping ratio and the comprehensive cracking ratio. It is applicable to the mining of close-range coal seams in thin, medium-thick, and thick coal seams.

[0037] Optionally, if the interlayer spacing is greater than the height of the lower coal seam caving zone, the height of the comprehensive water-conducting fracture zone is determined, and the comprehensive fracture-to-production ratio is determined based on the height of the comprehensive water-conducting fracture zone, including: The distance from the roof elevation of the lower coal seam to the first target elevation is defined as the height of the comprehensive water-conducting fracture zone; wherein, the first target elevation is the elevation of the highest point among the development height of the water-conducting fracture zone of the upper coal seam and the development height of the water-conducting fracture zone of the lower coal seam. The ratio of the height of the integrated water-conducting fracture zone to the mining thickness of the lower coal seam is determined as the integrated fracture-mining ratio.

[0038] In this embodiment, when the interlayer spacing of the coal seam is greater than the height of the caving zone of the lower coal seam, accurately determining the height of the comprehensive water-conducting fracture zone and the comprehensive fracture-mining ratio plays a crucial role in water hazard prevention and mining scheme design during coal mining. Currently, existing methods for determining the comprehensive caving-mining ratio and comprehensive fracture-mining ratio of closely spaced coal seams are only applicable to thick coal seams, and the fitted comprehensive mining thickness calculation formula lacks universality, thus affecting safety and resource utilization efficiency during mining. This invention addresses this issue by providing a clear and scientific method for determining the comprehensive fracture-mining ratio.

[0039] In coal mining, elevation refers to the vertical height of a point in the mine relative to a reference surface. It is a core geometric parameter used to locate underground roadways, working faces, and coal seams, and is essentially a coordinate value in the vertical direction.

[0040] There are two types of reference surfaces commonly used in coal mining: Absolute elevation: The height calculated with the mean sea level of the Yellow Sea as the reference surface, also known as altitude. This type of elevation is used for the overall positioning of mines, such as the absolute elevation of the mine entrance and the topographic elevation of the mine field boundary, and is the basic data for mine design and geological exploration.

[0041] Relative elevation: The height calculated with a specific point in the mine (such as the mine entrance platform or the level of the mine bottom yard) as the reference surface (set as ±0.00 m). Relative elevation is more convenient for underground construction and daily measurement. For example, if the relative elevation of a coal mining face is -500 m, it means that the working face is located 500 meters below the reference surface.

[0042] The core role of elevation Locating the underground space: Determining the vertical location of roadways, chambers, coal mining faces, and coal seams to avoid conflicts between different projects in the vertical direction (such as precise docking when roadways cross coal seams).

[0043] Guiding mining operations: The elevation of the top and bottom plates of the coal seam are key bases for calculating the coal seam thickness and determining the mining slope; at the same time, the elevation difference determines the ventilation pressure difference and drainage slope of the mine, affecting the design of the ventilation and drainage systems.

[0044] Drawing mine drawings: In mine geological maps, mining engineering plan, and roadway profile, elevation is a core parameter that must be marked. It is the basis for technicians to analyze underground geological conditions and engineering progress.

[0045] Analysis of beneficial effects: Precise water hazard prevention: Accurately determining the height of the comprehensive water-conducting fracture zone is conducive to reasonably reserving the height of the waterproof coal (rock) pillar, taking corresponding protective measures in advance, and realizing safe mining of coal seams in close proximity to the water body.

[0046] Scientific mining decision-making: By accurately calculating the comprehensive fracturing ratio, important quantitative indicators are provided for coal mining enterprises to formulate mining plans. Based on the comprehensive fracturing ratio, parameters such as mining technology and mining speed can be rationally adjusted to optimize the mining process and improve resource extraction efficiency.

[0047] Enhanced data reliability: The clearly defined determination method improves the accuracy and reliability of the comprehensive cracking ratio data, providing strong support for the scientific management of coal mining.

[0048] Optionally, when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, the height of the comprehensive caving zone and the height of the comprehensive water-conducting fracture zone are determined based on the relationship between the comprehensive mining thickness and the lower coal seam mining thickness, including: When the overall mining thickness is greater than or equal to the lower coal seam mining thickness, the distance from the lower coal seam roof elevation to the second target elevation is determined as the overall caving zone height, and the second target elevation is the elevation of the highest point among the upper coal seam caving zone development height and the overall mining thickness caving zone development height. The distance from the elevation of the lower coal seam roof to the third target elevation is defined as the height of the comprehensive water-conducting fracture zone; wherein, the third target elevation is the elevation of the highest point among the development height of the upper coal seam water-conducting fracture zone and the development height of the comprehensive mining thickness water-conducting fracture zone.

[0049] In this embodiment, when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone and the overall mining thickness is greater than or equal to the lower coal seam mining thickness, accurately determining the overall caving zone height and the overall water-conducting fracture zone height is crucial for ensuring coal mine safety and rational resource development. Currently, existing methods for determining the overall caving-to-mining ratio and overall fracture-to-mining ratio of closely spaced coal seams are only applicable to thick coal seams, and the fitted formula for calculating the overall mining thickness lacks universality, resulting in inaccurate determination of the overall caving-to-mining ratio and overall fracture-to-mining ratio. This invention addresses this issue by providing a detailed and scientific method for determining these ratios.

[0050] Determination of the overall caving zone height: When the overall mining thickness is greater than or equal to the mining thickness of the lower coal seam, the distance from the elevation of the roof of the lower coal seam to the highest point of the caving zone development height of the upper coal seam and the overall mining thickness caving zone development height (i.e., the second target elevation) is determined as the overall caving zone height.

[0051] Determination of the overall water-conducting fracture zone height: When the overall mining thickness is greater than or equal to the mining thickness of the lower coal seam, the distance from the elevation of the roof of the lower coal seam to the elevation of the water-conducting fracture zone development height of the upper coal seam and the elevation of the highest point of the water-conducting fracture zone development height of the overall mining thickness (i.e., the third target elevation) is determined as the overall water-conducting fracture zone height.

[0052] Optionally, determining the comprehensive caving-to-production ratio and the comprehensive fracture-to-production ratio based on the comprehensive caving zone height and the comprehensive water-conducting fracture zone height includes: The overall caving zone height is divided by the overall mining thickness to obtain the overall caving-mining ratio; The integrated fracture-production ratio is obtained by dividing the height of the integrated water-conducting fracture zone by the integrated production thickness.

[0053] In this embodiment, after determining the height of the comprehensive caving zone and the comprehensive water-conducting fracture zone, accurately calculating the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio is of great significance for optimizing coal mine mining schemes and rationally developing and utilizing resources. Traditional calculation methods for single coal seam mining may not be accurate enough or fail to fully consider the special characteristics of mining close-range coal seams, making it difficult to determine the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio, thus affecting the scientific nature of mining decisions. This invention provides a clear and scientific method for calculating the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio to meet the actual needs of coal mine mining.

[0054] Optionally, when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, determining the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the lower coal seam mining thickness includes: When the overall mining thickness is less than the lower coal seam mining thickness, the distance from the lower coal seam roof elevation to the fourth target elevation is determined as the overall caving zone height; wherein, the fourth target elevation is the elevation of the highest point among the upper coal seam caving zone development height and the lower coal seam caving zone development height. The distance from the elevation of the lower coal seam roof to the fifth target elevation is determined as the height of the comprehensive water-conducting fracture zone, wherein the fifth target elevation is the elevation of the highest point among the development heights of the upper and lower coal seam water-conducting fracture zones.

[0055] In this embodiment, when the interlayer spacing is less than the height of the caving zone of the lower coal seam and the overall mining thickness is less than the mining thickness of the lower coal seam, accurately determining the overall caving zone height and the overall water-conducting fracture zone height is crucial to ensuring safe mining and effective resource utilization in coal mines. The "Specifications for the Retention of Coal Pillars and Coal Mining in Buildings, Water Bodies, Railways and Main Shafts" and the "Guidelines for the Retention of Coal Pillars and Coal Mining in Buildings, Water Bodies, Railways and Main Shafts" (2017 edition) do not provide methods for determining the overall caving ratio and overall fracture ratio of closely spaced coal seams, and there is also no universally applicable method for determining these ratios in the literature.

[0056] Determination of the overall caving zone height: When the overall mining thickness is less than the mining thickness of the lower coal seam, the distance from the elevation of the roof of the lower coal seam to the highest point of the development height of the upper coal seam caving zone and the development height of the lower coal seam caving zone (i.e., the fourth target elevation) is determined as the overall caving zone height.

[0057] Determination of the overall water-conducting fracture zone height: When the overall mining thickness is less than the mining thickness of the lower coal seam, the distance from the elevation of the lower coal seam roof to the highest point of the development height of the water-conducting fracture zone in the upper coal seam and the development height of the water-conducting fracture zone in the lower coal seam (i.e., the fifth target elevation) is determined as the overall water-conducting fracture zone height.

[0058] Optionally, determining the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio based on the comprehensive caving zone height and the comprehensive water-conducting fracture zone height includes: The overall caving zone height is divided by the lower coal seam mining thickness to obtain the overall caving ratio. The comprehensive water-conducting fracture zone height is divided by the lower coal seam mining thickness to obtain the comprehensive fracture-to-mining ratio.

[0059] In this embodiment, after determining the height of the comprehensive caving zone and the comprehensive water-conducting fracture zone, accurately calculating the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio is of great significance for optimizing coal mining schemes and rationally developing and utilizing resources. This invention provides clear and scientific methods for calculating the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio to meet the actual needs of coal mining.

[0060] Figure 2This is a flowchart illustrating a method for determining the comprehensive scrapping ratio and comprehensive fracturing ratio of a closely spaced coal seam, as provided in an embodiment of this application. Figure 2 As shown, my country's coal mines have complex hydrogeological conditions, and water inrush accidents occur frequently, making it one of the five major coal mine disasters. In recent years, with the gradual shift of resources to deeper areas and the increase in close-range coal seam mining faces, repeated or multiple mining operations have caused severe damage to the overburden, leading to the development and enlargement of water-conducting fracture zones and an increasing number of roof water inrush disasters. Among these, the height of overburden damage during coal seam mining is a key factor in the prevention and control of roof water hazards, and understanding the laws governing overburden damage during coal seam mining is crucial for coal mining under water bodies.

[0061] Real-world case studies have shown that when the overlying strata are hard rock, the thickness of the upper coal seam during mining is... M 1 is 3.5m, the thickness of the lower coal seam being mined. M When the coal seam depth is 9.7m and the coal seam spacing is 63m, the caving zone height of the lower coal seam is 72.9m. This caving zone will reach the roof of the upper coal seam, requiring a comprehensive mining thickness calculation to determine the height of the caving zone and water-conducting fracture zone in the vicinity of the upper coal seam. The calculated comprehensive mining thickness is 4.8m. M z < M 2. The "Specifications for the Retention of Coal Pillars and Coal Mining under Pressure in Buildings, Water Bodies, Railways and Main Shafts" and the "Guidelines for the Retention of Coal Pillars and Coal Mining under Pressure in Buildings, Water Bodies, Railways and Main Shafts" (2017 edition) clarify the methods for determining the development height of water-conducting fracture zones in nearby coal seams, but do not provide methods for determining the comprehensive slump-to-mining ratio and the comprehensive fracture-to-mining ratio. In the mining of nearby coal seams, the comprehensive mining thickness can be greater than or equal to the mining thickness of the underlying coal seam, or it can be less than the mining thickness of the underlying coal seam. Therefore, determining the comprehensive slump-to-mining ratio and the comprehensive fracture-to-mining ratio is crucial for reasonably predicting the development height of water-conducting fracture zones in working faces with similar geological conditions.

[0062] The method for determining the comprehensive slugging ratio and comprehensive fracturing ratio in close-range coal seam mining includes the following steps: (a) Determine the relationship between the height of the caving zone and the interlayer spacing in the lower coal seam by means of field measurements or by using empirical formulas for the height of the caving zone caused by overburden failure in coal seam mining; (b) If the distance between coal seams (groups) is greater than the height of the caving zone of the lower coal seam, the height of the comprehensive water-conducting fracture zone is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the development height of the water-conducting fracture zone of the upper and lower coal seams, and the comprehensive fracture-mining ratio is the comprehensive water-conducting fracture zone height divided by the mining thickness of the lower coal seam.

[0063] (c) If the distance between coal seams (groups) is less than or equal to the height of the caving zone of the lower coal seam, determine the relationship between the overall mining thickness and the mining thickness of the lower coal seam.

[0064] (d) If the overall mining thickness is greater than or equal to the thickness of the lower coal seam, the overall caving zone height is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the development height of the caving zone of the upper coal seam with the overall mining thickness, the overall water-conducting fracture zone height is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the development height of the water-conducting fracture zone of the upper coal seam with the overall mining thickness, and the overall caving-to-mining ratio / overall fracture-to-mining ratio is the overall caving zone / overall water-conducting fracture zone height divided by the overall mining thickness; (e) If the overall mining thickness is less than the thickness of the lower coal seam, the overall caving zone height is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the caving zone development of the upper and lower coal seams, the overall water-conducting fracture zone height is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the water-conducting fracture zone development of the upper and lower coal seams, and the overall caving-to-mining ratio / overall fracture-to-mining ratio is the overall caving zone / overall water-conducting fracture zone height divided by the mining thickness of the lower coal seam.

[0065] Figure 3 This is a schematic diagram of a water-conducting fracture zone provided in an embodiment of this application; when the minimum vertical distance between the upper and lower coal seams... h 1-2 Greater than the height of the lower coal seam caving zone H k2 At that time, the height of the comprehensive water-conducting fracture zone is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the development height of the water-conducting fracture zone in the upper and lower coal seams, and the comprehensive fracture-mining ratio is the height of the comprehensive water-conducting fracture zone divided by the mining thickness of the lower coal seam. Figure 4 This is a schematic diagram of a water-conducting fracture zone provided in an embodiment of this application; when the minimum vertical distance between the upper and lower coal seams... h 1-2 Less than or equal to the height of the lower coal seam caving zone H k2 When the caving zone of the lower coal seam comes into contact with or completely enters the range of the upper coal seam, the relationship between the overall mining thickness and the mining thickness of the lower coal seam is determined.

[0066] If the overall mining thickness is greater than the thickness of the lower coal seam, the overall caving zone height is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the development height of the caving zone of the upper coal seam with the overall mining thickness, and the overall water-conducting fracture zone height is the distance from the elevation of the roof of the lower coal seam to the elevation of the highest point of the development height of the water-conducting fracture zone of the upper coal seam with the overall mining thickness. The overall caving-to-mining ratio / overall fracture-to-mining ratio is the overall caving zone / overall water-conducting fracture zone height divided by the overall mining thickness. If the overall mining thickness is less than the thickness of the lower coal seam, the overall caving zone height is the distance from the elevation of the lower coal seam roof to the elevation of the highest point of the caving zone development in the upper and lower coal seams, the overall water-conducting fracture zone height is the distance from the elevation of the lower coal seam roof to the elevation of the highest point of the water-conducting fracture zone development in the upper and lower coal seams, and the overall caving-to-mining ratio / overall fracture-to-mining ratio is the overall caving zone / overall water-conducting fracture zone height divided by the lower coal seam mining thickness.

[0067] To achieve the above embodiments, this application also proposes a device for determining the comprehensive scraping ratio and comprehensive fracturing ratio of close-range coal seams.

[0068] Figure 5 This is a schematic diagram of a device for determining the comprehensive scraping ratio and comprehensive fracturing ratio of a close-range coal seam, provided in an embodiment of this application.

[0069] like Figure 5 As shown, the device may include: The comparison module 510 is used to determine the relationship between the interlayer spacing of closely spaced coal seams and the height of the caving zone of the lower coal seam; wherein, the closely spaced coal seams include the upper coal seam and the lower coal seam; The first analysis module 520 is used to determine the height of the comprehensive water-conducting fracture zone when the interlayer spacing is greater than the height of the lower coal seam caving zone, and to determine the comprehensive fracture-mining ratio based on the height of the comprehensive water-conducting fracture zone. The second analysis module 530 is used to determine the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the overall water-conducting fracture zone height when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, and to determine the overall caving-to-mining ratio and the overall fracture-to-mining ratio based on the overall caving zone height and the overall water-conducting fracture zone height.

[0070] It should be noted that the foregoing explanation of the method embodiments also applies to the apparatus of this embodiment, and will not be repeated here.

[0071] To implement the above embodiments, this application also proposes a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the method described in the foregoing method embodiments.

[0072] To implement the above embodiments, this application also proposes a computer program product having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method described in the foregoing method embodiments.

[0073] To implement the above embodiments, this application also proposes an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method described in the foregoing method embodiments.

[0074] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. For example, the electronic device 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0075] Reference Figure 6The electronic device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.

[0076] Processing component 802 typically controls the overall operation of electronic device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0077] Memory 804 is configured to store various types of data to support the operation of electronic device 800. Examples of such data include instructions for any application or method operating on electronic device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0078] Power component 806 provides power to various components of electronic device 800. Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 800.

[0079] Multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0080] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when electronic device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0081] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0082] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of electronic device 800. For example, sensor assembly 814 can detect the on / off state of electronic device 800, the relative positioning of components such as the display and keypad of electronic device 800, changes in position of electronic device 800 or a component of electronic device 800, the presence or absence of user contact with electronic device 800, orientation or acceleration / deceleration of electronic device 800, and temperature changes of electronic device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0083] Communication component 816 is configured to facilitate wired or wireless communication between electronic device 800 and other devices. Electronic device 800 can access wireless networks based on communication standards, such as WiFi, 4G, or 5G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0084] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0085] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of an electronic device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0086] To implement the above embodiments, this application also proposes a chip, including: the chip includes a processing circuit configured to perform the methods provided in the foregoing embodiments.

[0087] Figure 7 This is a schematic diagram of the structure of a chip according to an embodiment of this application. See also... Figure 7 The diagram shown is a schematic representation of the structure of chip 1100, but it is not limited to this.

[0088] Chip 1100 includes processing circuitry 1101, which is configured to perform any of the above methods.

[0089] In some embodiments, chip 1100 further includes one or more interface circuits 1102. Optionally, the interface circuit 1102 is connected to memory 1103, and the interface circuit 1102 can be used to receive signals from memory 1103 or other devices, and the interface circuit 1102 can be used to send signals to memory 1103 or other devices. For example, the interface circuit 1102 can read instructions stored in memory 1103 and send the instructions to processing circuit 1101.

[0090] In some embodiments, the interface circuit 1102 performs at least one of the communication steps such as sending and / or receiving in the above method, while the processing circuit 1101 performs other steps.

[0091] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0092] In some embodiments, chip 1100 further includes one or more memories 1103 for storing instructions. Optionally, all or part of the memories 1103 may be located outside of chip 1100.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0094] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0095] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0096] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0097] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0098] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0099] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0100] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for determining the comprehensive scrapping ratio and comprehensive fracturing ratio of closely spaced coal seams, characterized in that, include: Determine the relationship between the interlayer spacing of closely spaced coal seams and the height of the caving zone of the lower coal seam; wherein, the closely spaced coal seams include the upper coal seam and the lower coal seam; When the interlayer spacing is greater than the height of the lower coal seam caving zone, the height of the comprehensive water-conducting fracture zone is determined, and the comprehensive fracture-to-mining ratio is determined based on the height of the comprehensive water-conducting fracture zone; or... When the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, the height of the comprehensive caving zone and the height of the comprehensive water-conducting fracture zone are determined according to the relationship between the comprehensive mining thickness and the lower coal seam mining thickness, and the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio are determined according to the comprehensive caving-to-mining ratio and the comprehensive fracture-to-mining ratio.

2. The method according to claim 1, characterized in that, When the interlayer spacing is greater than the height of the lower coal seam caving zone, determining the height of the comprehensive water-conducting fracture zone and determining the comprehensive fracture-to-mining ratio based on the height of the comprehensive water-conducting fracture zone includes: The distance from the roof elevation of the lower coal seam to the first target elevation is defined as the height of the comprehensive water-conducting fracture zone; wherein, the first target elevation is the elevation of the highest point among the development height of the water-conducting fracture zone of the upper coal seam and the development height of the water-conducting fracture zone of the lower coal seam. The ratio of the height of the integrated water-conducting fracture zone to the mining thickness of the lower coal seam is determined as the integrated fracture-mining ratio.

3. The method according to claim 1, characterized in that, When the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, determining the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the lower coal seam mining thickness includes: When the overall mining thickness is greater than or equal to the lower coal seam mining thickness, the distance from the lower coal seam roof elevation to the second target elevation is determined as the overall caving zone height, and the second target elevation is the elevation of the highest point among the upper coal seam caving zone development height and the overall mining thickness caving zone development height. The distance from the elevation of the lower coal seam roof to the third target elevation is defined as the height of the comprehensive water-conducting fracture zone; wherein, the third target elevation is the elevation of the highest point among the development height of the upper coal seam water-conducting fracture zone and the development height of the comprehensive mining thickness water-conducting fracture zone.

4. The method according to claim 3, characterized in that, The determination of the comprehensive caving-to-production ratio and the comprehensive fracture-to-production ratio based on the comprehensive caving zone height and the comprehensive water-conducting fracture zone height includes: The overall caving zone height is divided by the overall mining thickness to obtain the overall caving-mining ratio; The integrated fracture-production ratio is obtained by dividing the height of the integrated water-conducting fracture zone by the integrated production thickness.

5. The method according to claim 1, characterized in that, When the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, determining the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the lower coal seam mining thickness includes: When the overall mining thickness is less than the lower coal seam mining thickness, the distance from the lower coal seam roof elevation to the fourth target elevation is determined as the overall caving zone height; wherein, the fourth target elevation is the elevation of the highest point among the upper coal seam caving zone development height and the lower coal seam caving zone development height. The distance from the elevation of the lower coal seam roof to the fifth target elevation is determined as the height of the comprehensive water-conducting fracture zone, wherein the fifth target elevation is the elevation of the highest point among the development heights of the upper and lower coal seam water-conducting fracture zones.

6. The method according to claim 5, characterized in that, The determination of the comprehensive caving-to-production ratio and the comprehensive fracture-to-production ratio based on the comprehensive caving zone height and the comprehensive water-conducting fracture zone height includes: The overall caving zone height is divided by the lower coal seam mining thickness to obtain the overall caving ratio. The comprehensive water-conducting fracture zone height is divided by the lower coal seam mining thickness to obtain the comprehensive fracture-to-mining ratio.

7. A device for determining the comprehensive scrapping ratio and comprehensive fracturing ratio of closely spaced coal seams, characterized in that, include: The comparison module is used to determine the relationship between the interlayer spacing of closely spaced coal seams and the height of the caving zone of the lower coal seam; wherein, the closely spaced coal seams include the upper coal seam and the lower coal seam; The first analysis module is used to determine the height of the comprehensive water-conducting fracture zone when the interlayer spacing is greater than the height of the lower coal seam caving zone, and to determine the comprehensive fracture-mining ratio based on the height of the comprehensive water-conducting fracture zone. The second analysis module is used to determine the overall caving zone height and the overall water-conducting fracture zone height based on the relationship between the overall mining thickness and the overall water-conducting fracture zone height when the interlayer spacing is less than or equal to the height of the lower coal seam caving zone, and to determine the overall caving-to-mining ratio and the overall fracture-to-mining ratio based on the overall caving zone height and the overall water-conducting fracture zone height.

8. An electronic device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method as described in any one of claims 1-6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1-6.

10. A chip, characterized in that, The chip includes processing circuitry configured to perform the method described in any one of claims 1-6.

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