Method and device for determining anti-impact strategy of coal pillar, storage medium, processor and program product

Abstract

The invention discloses a method and a device for determining an anti-impact strategy of a coal pillar, a storage medium, a processor and a program product. The method comprises the following steps: respectively performing drilling treatment on a plurality of positions of a target coal pillar in a coal seam, and monitoring the drilled target coal pillar to obtain a plurality of pieces of monitoring data corresponding to the plurality of positions; determining a corresponding target size of the target coal pillar under the condition that the target coal pillar loses the bearing capacity based on the multiple pieces of monitoring data; the bearing performance index of the target coal pillar is determined through the target size, and the bearing performance index is used for representing the bearing capacity of the target coal pillar; in response to the fact that the bearing performance index is larger than the bearing performance index threshold value, an anti-impact strategy of the target coal pillar is determined, and the anti-impact strategy is used for controlling the stress of the target coal pillar acting on the underlying working face of the target coal pillar. The technical problem that the safety of mining the underlying working face is low is solved.

Description

Technical Field

[0001] The present application relates to the field of energy processing, and in particular, to a method, device, storage medium, processor and program product for determining an anti-bumping strategy for a coal pillar. Background Art

[0002] At present, the scale of coal resource mining is constantly expanding, and the mining depth is also increasing year by year. At the same time, the threat of rock burst faced in the process of coal resource mining is becoming increasingly serious. There have been many major rock burst accidents in deep mines, resulting in a large number of casualties. Rock burst has become one of the main dynamic disasters faced by deep coal mining. In addition, close-range coal seam groups account for a large proportion of coal resources in China, and the mining area of ​​close-range coal seam groups is increasing year by year. When the interlayer spacing of coal seams is small, the mining of the upper coal seam will have a greater mining impact on the lower coal seam. In the process of entering and exiting the influence area of ​​the overlying residual coal pillar, the underlying working face is prone to rock burst due to uneven stress distribution, which brings huge hidden dangers to the safe mining of the underlying working face, and thus there is a technical problem of low safety in mining the underlying working face.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0004] The embodiments of the present application provide a method, device, storage medium, processor and program product for determining a coal pillar anti-bumping strategy, so as to at least solve the technical problem of low safety of mining the underlying working face.

[0005] According to one aspect of an embodiment of the present application, a method for determining an anti-bumping strategy for a coal pillar is provided, and the method may include: drilling a plurality of positions of a target coal pillar in a coal seam respectively, and monitoring the target coal pillar after drilling to obtain a plurality of monitoring data corresponding to the plurality of positions; determining a target size corresponding to the target coal pillar when it loses its bearing capacity based on the plurality of monitoring data; determining a bearing performance index of the target coal pillar using the target size, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than a bearing performance index threshold, determining an anti-bumping strategy for the target coal pillar, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar.

[0006] Optionally, in response to the bearing performance index being greater than the bearing performance index threshold, an anti-bumping strategy for the target coal pillar is determined, including: in response to the bearing performance index being greater than the bearing performance index threshold, determining the degree of impact of the target coal pillar on the underlying working face; and determining an anti-bumping strategy that matches the degree of impact.

[0007] Optionally, determining an anti-impact strategy that matches the impact degree includes: determining an impact range of the target coal pillar on the underlying working face; and determining an anti-impact strategy that matches the impact degree based on the impact range.

[0008] Optionally, based on multiple monitoring data, a target size corresponding to the target coal pillar when it loses its bearing capacity is determined, including: determining a mean of the multiple monitoring data to obtain initial monitoring data; and converting the initial monitoring data to obtain the target size.

[0009] Optionally, the initial monitoring data is converted to obtain the target size, including: retrieving a correction coefficient; correcting the initial monitoring data using the correction coefficient to obtain the target monitoring data; and converting the target monitoring data to obtain the target size.

[0010] Optionally, the target size is used to determine the bearing performance index of the target coal pillar, including: in response to the target size being greater than the width of the target coal pillar, determining that the bearing performance index is less than or equal to a bearing performance index threshold; in response to the target size being less than or equal to the width, determining that the bearing performance index is greater than the bearing performance index threshold.

[0011] According to another aspect of an embodiment of the present application, a device for determining an anti-bumping strategy for a coal pillar is also provided, and the device may include: a processing unit, used to drill multiple positions of a target coal pillar in a coal seam respectively, and monitor the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions; a first determination unit, used to determine, based on multiple monitoring data, a target size corresponding to the target coal pillar when it loses its bearing capacity; a second determination unit, used to determine a bearing performance index of the target coal pillar using the target size, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; a third determination unit, used to determine an anti-bumping strategy for the target coal pillar in response to the bearing performance index being greater than a bearing performance index threshold, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar.

[0012] According to another aspect of an embodiment of the present application, a computer-readable storage medium is also provided, which includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute the method for determining the anti-collision strategy of the coal pillar of the embodiment of the present application.

[0013] According to another aspect of an embodiment of the present application, a processor is further provided, the processor being used to run a program, wherein when the program is run by the processor, the method for determining the anti-bumping strategy of the coal pillar of the embodiment of the present application is executed.

[0014] According to another aspect of an embodiment of the present application, a computer program product is further provided. The computer program product includes computer instructions, wherein when the computer instructions are executed by a processor, the method for determining the anti-bumping strategy of the coal pillar of the embodiment of the present application is implemented.

[0015] In an embodiment of the present application, drilling is performed on multiple positions of a target coal pillar in a coal seam, and the target coal pillar after drilling is monitored to obtain multiple monitoring data corresponding to the multiple positions; based on the multiple monitoring data, a target size corresponding to the target coal pillar when it loses its bearing capacity is determined; using the target size, a bearing performance index of the target coal pillar is determined, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than a bearing performance index threshold, an anti-bumping strategy for the target coal pillar is determined, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar. That is to say, in an embodiment of the present application, a target coal pillar is drilled to obtain multiple monitoring data of the target coal pillar. Based on the multiple monitoring data, the target size corresponding to when the target coal pillar loses its bearing capacity can be determined. The bearing capacity of the target coal pillar is judged based on the target size to determine the actual bearing capacity of the coal pillar (that is, the bearing performance index). Furthermore, if the bearing performance index is greater than the bearing performance index threshold, an anti-bumping strategy can be determined. Using the anti-bumping strategy, the target coal pillar can be protected, thereby solving the technical problem of low safety of the underlying working face under mining and achieving the technical effect of improving the safety of the underlying working face under mining. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 is a flow chart of a method for determining a coal pillar anti-bumping strategy according to an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of a coal powder broken line for coal pillar drilling based on a drilling cuttings method according to an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a coal pillar blasthole according to an embodiment of the present application;

[0020] Figure 4 is a schematic diagram of vertical stress distribution of a coal pillar according to an embodiment of the present application;

[0021] Figure 5 is a schematic diagram of a device for determining an anti-bumping strategy for a coal pillar according to an embodiment of the present application;

[0022] Figure 6 is a structural block diagram of a computer terminal according to an embodiment of the present application;

[0023] Figure 7 It is a block diagram of an electronic device for a method for determining an anti-bumping strategy for a coal pillar according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] According to an embodiment of the present application, an embodiment of a method for determining an anti-collision strategy for a coal pillar is provided. The steps shown in the flowchart of the accompanying drawing can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0027] In this embodiment, a method for determining an anti-bumping strategy for a coal pillar is proposed. The method can drill a target coal pillar to obtain multiple monitoring data of the target coal pillar. Based on the multiple monitoring data, the target size corresponding to when the target coal pillar loses its bearing capacity can be determined. The bearing capacity of the target coal pillar is interpreted based on the target size to determine the actual bearing capacity of the coal pillar (that is, the bearing performance index). Furthermore, if the bearing performance index is greater than the bearing performance index threshold, an anti-bumping strategy can be determined. Using the anti-bumping strategy, the target coal pillar can be protected, thereby solving the technical problem of low safety of the underlying working face under mining and achieving the technical effect of improving the safety of the underlying working face under mining.

[0028] Figure 1 is a flow chart of a method for determining a coal pillar anti-bumping strategy according to an embodiment of the present application, such as Figure 1 As shown, the method may include the following steps:

[0029] Step S102, drilling is performed on multiple positions of the target coal pillar in the coal seam respectively, and the target coal pillar after drilling is monitored to obtain multiple monitoring data corresponding to the multiple positions.

[0030] In the technical solution provided in the above step S102 of the present application, the above target coal pillar may be a residual coal pillar or a protective coal pillar in the upper working face, and may refer to an unmined coal pillar formed due to coal mining during the coal mining process. The above monitoring data may be the depth corresponding to different drilling positions, and may be used to characterize the boundary between the sparse fracture area and the area without obvious fractures in the target coal pillar, and may be the drilling depth at the peak value of the cuttings. It should be noted that there is no specific restriction on the type of monitoring data here.

[0031] Alternatively, the coal seam may be a coal seam in a mine. The presence of the above-mentioned legacy coal pillars may affect the stability and safety of the mine, because they may cause problems such as spontaneous combustion, gas accumulation or ground pressure changes over time.

[0032] Optionally, multiple positions of the target coal pillar in the coal seam are drilled, and the drilled target coal pillar is monitored. For example, small diameter holes may be drilled at multiple positions to obtain multiple monitoring data corresponding to the multiple positions. The above positions may be positions planned by the tester.

[0033] Step S104, based on the plurality of monitoring data, determining a target size corresponding to the target coal pillar when it loses its bearing capacity.

[0034] In the technical solution provided in the above step S104 of the present application, after obtaining multiple monitoring data, the target size corresponding to the target coal pillar when it loses its bearing capacity can be determined based on the multiple monitoring data. The above target size can be the sum of the widths of the coal pillar crack-dense area and the crack-sparse area, and can be the minimum size (D1) of the coal pillar losing its bearing capacity. The expression form of the target size is not specifically limited here.

[0035] Optionally, multiple monitoring data are acquired and converted to obtain a target size.

[0036] Step S106, using the target size, determining the bearing performance index of the target coal pillar, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar.

[0037] In the technical solution provided in step S106 of the present application, the target size can be used to determine the bearing performance index of the target coal pillar. The bearing performance index is used to represent the bearing capacity of the target coal pillar and can be used to determine the bearing capacity of the target coal pillar at the current moment.

[0038] Optionally, the target size is used to judge the target coal pillar to determine the bearing performance index of the target coal pillar. Further, based on the bearing performance index of the target coal pillar, it can be determined whether the target coal pillar needs to be subjected to anti-collision treatment.

[0039] Step S108, in response to the bearing performance index being greater than the bearing performance index threshold, determining an anti-bumping strategy for the target coal pillar, wherein the anti-bumping strategy is used to control the stress of the target coal pillar acting on the underlying working surface of the target coal pillar.

[0040] In the technical solution provided in the above step S108 of the present application, if the bearing performance index is greater than the bearing performance index threshold, it can be determined that the target coal pillar has bearing capacity, which will cause stress concentration on the underlying working surface. Therefore, the anti-collision strategy of the target coal pillar can be determined, and the anti-collision strategy can be used to control the stress of the target coal pillar on the underlying working surface of the target coal pillar. Among them, the above anti-collision strategy can be an anti-collision measure, and the underlying working surface can be protected by the anti-collision strategy.

[0041] At present, the scale of coal resource mining is constantly expanding, and the mining depth is also increasing year by year. At the same time, the threat of rock burst faced in the process of coal resource mining is becoming increasingly serious. There have been many major rock burst accidents in deep mines, resulting in a large number of casualties. Rock burst has become one of the main dynamic disasters faced by deep coal mining. In addition, close-range coal seam groups account for a large proportion of coal resources in China, and the mining area of ​​close-range coal seam groups is increasing year by year. When the interlayer spacing of coal seams is small, the mining of the upper coal seam will have a greater mining impact on the lower coal seam. The stress of the roof rock layer under the coal pillar left by the upper working face is much higher than the original rock stress. In the process of entering and exiting the influence area of ​​the overlying coal pillar, the underlying working face is prone to rock burst due to uneven stress distribution, which brings huge hidden dangers to the safe mining of the underlying working face.

[0042] Close-range coal seam groups account for a large proportion of coal resources. When the interlayer spacing of coal seams is small, the coal pillars left behind by the upper working face will have a greater mining impact on the underlying coal seams. The stress of the underlying coal seams is much higher than the original rock stress. When the underlying working face enters and exits the area affected by the overlying coal pillars, rock bursts are prone to occur due to uneven stress distribution. Therefore, it is necessary to propose a method for judging the stability of the overlying protective coal pillars and preventing and controlling rock bursts in multi-coal seam mining, so as to provide a guarantee for safe mining of the underlying coal seams.

[0043] In this embodiment, a method for determining the anti-bumping strategy of coal pillars is proposed, and this method has a clear understanding of the stability judgment and impact prevention of the overlying protective coal pillars in multi-coal seam mining. For the stability judgment and impact prevention of the overlying protective coal pillars in multi-coal seam mining, the types of coal pillars left over from repeated mining of multiple coal seams can be divided according to the width of the coal pillars; the stability of the coal pillars (that is, the bearing capacity) can be judged according to the results of the coal pillar drilling peek; the influence range of the type of the remaining coal pillars on the underlying working face can be judged through theoretical analysis; and anti-bumping measures can be taken for the target coal pillars that are affected by the impact of ground pressure on the underlying working face. This method can be used for the stability judgment and impact prevention of the overlying protective coal pillars in multi-coal seam mining. By combining on-site measurement with theoretical analysis, the purpose of judging the stability of the overlying coal pillars and their impact on the underlying coal seams can be achieved, and targeted prevention and control measures can be taken, thereby solving the technical problem of low safety of the underlying working face in mining, and achieving the technical effect of improving the safety of the underlying working face in mining.

[0044] Through the above-mentioned steps S102 and S108 of the present application, drilling is performed on multiple positions of the target coal pillar in the coal seam, and the target coal pillar after drilling is monitored to obtain multiple monitoring data corresponding to the multiple positions; based on the multiple monitoring data, the target size corresponding to the target coal pillar when it loses its bearing capacity is determined; using the target size, the bearing performance index of the target coal pillar is determined, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than the bearing performance index threshold, the anti-bumping strategy of the target coal pillar is determined, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar. That is to say, in an embodiment of the present application, a target coal pillar is drilled to obtain multiple monitoring data of the target coal pillar. Based on the multiple monitoring data, the target size corresponding to when the target coal pillar loses its bearing capacity can be determined. The bearing capacity of the target coal pillar is judged based on the target size to determine the actual bearing capacity of the coal pillar (that is, the bearing performance index). Furthermore, if the bearing performance index is greater than the bearing performance index threshold, an anti-bumping strategy can be determined. Using the anti-bumping strategy, the target coal pillar can be protected, thereby solving the technical problem of low safety of the underlying working face under mining and achieving the technical effect of improving the safety of the underlying working face under mining.

[0045] The above method of this embodiment is further introduced below.

[0046] As an optional implementation, step S108, in response to the bearing performance index being greater than the bearing performance index threshold, determines the anti-bumping strategy of the target coal pillar, including: in response to the bearing performance index being greater than the bearing performance index threshold, determines the impact degree of the target coal pillar on the underlying working face; determines the anti-bumping strategy that matches the impact degree.

[0047] In this embodiment, if the bearing performance index is greater than the bearing performance index threshold, the impact degree of the target coal pillar on the underlying working surface can be determined, and the impact degree can include strong impact, weak impact and medium impact. Based on the impact degree, an anti-impact strategy matching the impact degree can be determined.

[0048] For example, if the bearing performance index is greater than the bearing performance index threshold, it can be determined that the target coal pillar has an impact on the underlying working face, and anti-impact measures can be taken for the target coal pillar. Furthermore, the impact hazard level (i.e., impact degree) can be determined based on the width (D) of the target coal pillar. For example, when the sum of the widths of the coal pillar crack-dense area and the crack-sparse area of ​​the target coal pillar (D1) ≤ D ≤ 1.1D1, it can be determined that the impact degree is weak impact, and the target coal pillar can be a weak impact hazard coal pillar; when 1.1D1 ≤ D ≤ 1.3D1, it can be determined that the impact degree is medium impact, and the target coal pillar can be determined as a medium impact hazard coal pillar; when D ≥ 1.3D1, it can be determined that the impact degree is strong impact, and the target coal pillar can be determined as a strong impact hazard coal pillar.

[0049] Optionally, anti-bumping strategies corresponding to different impact degrees may be determined in advance. Therefore, after the impact degree of the target coal pillar is determined, an anti-bumping strategy matching the impact degree may be determined.

[0050] For example, for coal pillars with weak impact danger, the underlying working face can adopt large-diameter drilling to transfer the stress of the coal body to the deep coal seam. For coal pillars with medium impact danger, the underlying working face can adopt large-diameter drilling to transfer the stress of the coal body to the deep coal seam, and at the same time, directional long drilling and segmented hydraulic fracturing of the roof are used to relieve pressure. For coal pillars with strong impact danger, the underlying roof is drilled into the coal pillar, and the coal pillar is blasted to completely break the coal pillar.

[0051] It should be noted that the above method for determining the impact degree and the method for determining the anti-impact strategy are only for illustration and are not specifically limited here.

[0052] As an optional implementation method, determining an anti-impact strategy that matches the impact degree includes: determining the impact range of the target coal pillar on the underlying working face; and determining an anti-impact strategy that matches the impact degree based on the impact range.

[0053] In this embodiment, the impact range of the target coal pillar on the underlying working surface can be determined. Further, based on the impact range, the impact range of the target coal pillar on the underlying working surface can be determined. Further, based on the impact range, an anti-impact strategy matching the impact degree can be determined. The above impact range can be the impact range of the remaining coal pillar on the underlying working surface, which can be expressed as (-x, x).

[0054] Optionally, the influence range of the type of the remaining coal pillar on the underlying working surface is determined, characterized in that the coal pillar with a width less than D1 has no bearing capacity and has no influence on the underlying working surface; the coal pillar with a width greater than D1 has bearing capacity and will cause stress concentration on the underlying working surface. The vertical stress distribution formula of the coal pillar is:

[0055]

[0056] Wherein, q can be the uniformly distributed load on the floor rock mass, in megapascals (MPa), and L can be the width (D) of the coal pillar, in meters (m).

[0057] Optionally, when σy≤0.1MPa, it can be considered that the target coal pillar has no effect on the underlying working surface. Furthermore, the above formula can be used to determine the degree of influence of the target coal pillar on the underlying working surface at different positions, so that the actual influence area of ​​the target coal pillar on the underlying working surface can be determined: (-x, x). The actual influence area can be the impact range, based on which an anti-impact strategy matching the impact degree can be determined.

[0058] For example, the stress of the target coal pillar on the underlying working face is determined to draw the vertical stress curves at 5m, 10m, 15m, 20m, and 33m (corresponding to y) below the coal pillar. For example, according to the vertical stress area, it can be seen that the vertical stress below the target coal pillar is less than 0.1MPa 25m outward from both sides of the center line of the target coal pillar. There are different degrees of stress concentration within the range of 25m outward from both sides of the coal pillar of the underlying working face, so the impact range can be obtained as (25, -25). It can be determined that the target coal pillar is a strong impact dangerous coal pillar, so a hole can be opened from the underlying working face along the roof to the inside of the coal pillar, and the coal pillar can be blasted to completely break the coal pillar.

[0059] As an optional implementation, step S104, based on multiple monitoring data, determines the target size corresponding to the target coal pillar when it loses its bearing capacity, including: determining the mean of multiple monitoring data to obtain initial monitoring data; converting the initial monitoring data to obtain the target size.

[0060] In this embodiment, monitoring data at different positions can be acquired to obtain multiple monitoring data, the mean of the multiple monitoring data can be determined to obtain initial monitoring data, and the multiple initial monitoring data can be transformed to obtain a target size.

[0061] Optionally, a small diameter hole is drilled in the target coal pillar to obtain multiple monitoring data. Based on the multiple monitoring data, a curve graph of the amount of drill cuttings per unit length and the drilling depth can be drawn. According to the curve graph, the drilling depth at the peak of the amount of drill cuttings per unit length is D2, which can be the boundary between the sparse fracture area and the area without obvious fractures measured by the drill cuttings; the drilling depth of the area with severe internal fracture of the coal pillar observed by drilling through the drill cuttings is D3, which can be the boundary between the sparse fracture area and the area without obvious fractures measured by drilling through the drill cuttings. According to the above method, the monitoring data D2 and D3 can be monitored, the mean of D2 and D3 can be calculated to obtain the initial monitoring data, and the initial monitoring data can be converted to obtain the target size.

[0062] Optionally, converting the initial monitoring data to obtain the target size may include the following steps.

[0063] As an optional implementation, the initial monitoring data is converted to obtain the target size, including: retrieving a correction coefficient; correcting the initial monitoring data using the correction coefficient to obtain the target monitoring data; and converting the target monitoring data to obtain the target size.

[0064] In this embodiment, in order to improve the accuracy of the determined target size, a correction coefficient may be retrieved according to actual conditions, and the initial monitoring data may be corrected using the correction coefficient to obtain the target monitoring data. The target monitoring data may be converted to obtain the target size.

[0065] Optionally, the stability (i.e., bearing capacity) of the target coal pillar can be determined by the target size, and the mean of multiple monitoring data can be determined to obtain initial monitoring data. The initial monitoring data can be corrected using a correction coefficient to obtain target monitoring data, which can be the maximum hole depth in the sparse fracture area of ​​the coal pillar. The crack-dense areas, crack-sparse areas and areas without obvious cracks on both sides of the target coal pillar are symmetrically distributed. Therefore, the sum of the widths of the crack-dense areas and crack-sparse areas of the coal pillar can be: D1=2D, thus obtaining the target size (D1).

[0066] As an optional implementation, step S106, using the target size, determines the bearing performance index of the target coal pillar, including: in response to the target size being greater than the width of the target coal pillar, determining that the bearing performance index is less than or equal to the bearing performance index threshold; in response to the target size being less than or equal to the width, determining that the bearing performance index is greater than the bearing performance index threshold.

[0067] In this embodiment, the width (D) of the target coal pillar is determined. If the target size is greater than the width of the target coal pillar, it can be determined that the target coal pillar has no bearing capacity and has no effect on the underlying working surface, that is, it can be determined that the bearing performance index of the target coal pillar is less than or equal to the bearing performance index threshold. If the width of the target coal pillar is greater than or equal to D1, it can be determined that the target coal pillar has bearing capacity and will cause stress concentration on the underlying working surface, that is, it can be determined that the bearing performance index of the target coal pillar is greater than or equal to the bearing performance index threshold.

[0068] In this embodiment, a small diameter hole can be drilled in the coal pillar to draw a curve of the amount of drill cuttings per unit length and the drilling depth. Figure 2 is a schematic diagram of a coal powder broken line of a coal pillar drilling hole based on a drilling cuttings method according to an embodiment of the present application, such as Figure 2 As shown, two positions in the target coal pillar (for example, hole 1# and hole 2#) can be drilled to obtain monitoring data corresponding to the above two positions. For example, the monitoring data can be obtained by drilling cuttings and peeping. Further, based on the monitoring data, the following can be drawn: Figure 2 According to the curve graph shown. Figure 2 It can be seen that the drilling depth at the peak value of the cuttings per unit length corresponding to hole 1# is D2, which is the boundary between the sparse fracture area and the area without obvious fractures measured by the cuttings; the drilling depth of the serious fractured area inside the coal pillar corresponding to hole 2# is D3, which is the boundary between the sparse fracture area and the area without obvious fractures measured by drilling peek. According to the actual situation, the correction coefficient can be selected, and the dense fracture area, sparse fracture area and area without obvious fractures on both sides of the coal pillar are symmetrically distributed, and the maximum hole depth in the sparse fracture area of ​​the coal pillar is Furthermore, the sum of the widths of the coal pillar crack-dense area and the crack-sparse area can be determined, that is, the target size D1=2D.

[0069] Optionally, the target size is used to judge the bearing capacity of the target coal pillar. If the width of the target coal pillar is smaller than that of the D1 coal pillar, it can be determined that the target coal pillar has no bearing capacity and has no effect on the underlying working surface. If the width of the target coal pillar is larger than that of the D1 coal pillar, it can be determined that the target coal pillar has bearing capacity and will cause stress concentration on the underlying working surface.

[0070] In this embodiment, if it is determined that the bearing performance index is greater than the bearing performance index threshold, the target coal pillar can be determined as an impact-dangerous coal pillar. Further, the vertical stresses corresponding to different positions can be determined. Based on the vertical stresses, the influence range (x, -x) of the impact-dangerous coal pillar can be determined.

[0071] In this embodiment, corresponding anti-impact measures can be taken according to the impact risk level of the target coal pillar, wherein the impact risk level can include strong, medium, and weak.

[0072] In this embodiment, Figure 2 The drill cuttings method can be used to draw the drill cuttings per unit length of the target coal pillar in the B2 coal seam of a certain mine. From the drill cuttings per unit length curves of holes 1# and 2#, it can be seen that the peak stress of the coal pillar is reached at a drilling depth of about 5.9m. By observing the internal cracks of the coal pillar through drilling cuttings, it is found that the cracks on the inner wall of the borehole at depths of 2m, 3m, and 4m are more obvious, while the cracks in the coal pillar at 6m are fewer and less obvious. According to the actual situation on site, the correction coefficient is taken as 0.10, and the maximum hole depth in the sparse crack area of ​​the coal pillar is:

[0073]

[0074] Then, the minimum size (ie, target size) of the coal pillar at which it loses its bearing capacity is D1=2D=13m.

[0075] Optionally, Figure 3 is a schematic diagram of a coal pillar blasthole according to an embodiment of the present application, such as Figure 3 As shown, the 2-2 coal pillar of the B2 empty layer of the coal mine is located between the I010202 working face and the I010206 working face, with a width of 17.5m>1.3D1. It is a strong impact dangerous coal pillar, and the lower 33m is the I010102 working face of the B1 coal seam. According to the vertical stress calculation formula, the influence range of the 2-2 coal pillar on the I010102 working face is analyzed:

[0076]

[0077] Optionally, Figure 4 is a schematic diagram of vertical stress distribution of a coal pillar according to an embodiment of the present application, such as Figure 4 As shown, the vertical stress curves at 5m, 10m, 15m, 20m, and 33m below the coal pillar can be drawn, as shown in Figure 4 As shown in the figure, it can be seen that the vertical stress below the coal pillar from the center line of the coal pillar to the outside 25m is less than 0.1MPa. Therefore, there are different degrees of stress concentration within the range of 25m from both sides of the coal pillar of the I010102 working face. According to the above analysis, it can be concluded that the 2-2 coal pillar is a strong impact dangerous coal pillar. A hole can be drilled from the B1 coal seam working face along the roof to the inside of the coal pillar, and the coal pillar can be completely broken by blasting. The drilling position can be as follows Figure 3 shown.

[0078] In an embodiment of the present application, drilling is performed on multiple positions of a target coal pillar in a coal seam, and the target coal pillar after drilling is monitored to obtain multiple monitoring data corresponding to the multiple positions; based on the multiple monitoring data, a target size corresponding to the target coal pillar when it loses its bearing capacity is determined; using the target size, a bearing performance index of the target coal pillar is determined, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than a bearing performance index threshold, an anti-bumping strategy for the target coal pillar is determined, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar, thereby solving the technical problem of low safety of mining the underlying working surface and achieving the technical effect of improving the safety of mining the underlying working surface.

[0079] According to an embodiment of the present application, a device for determining a coal pillar anti-collision strategy is also provided. It should be noted that the device for determining a coal pillar anti-collision strategy of this embodiment can be used to execute the method for determining a coal pillar anti-collision strategy of embodiment 1 of the present application.

[0080] Figure 5 Schematic diagram of a device for determining a coal pillar anti-bumping strategy according to an embodiment of the present application. Figure 5 As shown, the device 50 for determining the anti-bumping strategy of the coal pillar may include: a processing unit 502 , a first determining unit 504 , a second determining unit 506 and a third determining unit 508 .

[0081] The processing unit 502 is used to perform drilling processing on multiple positions of the target coal pillar in the coal seam respectively, and monitor the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions.

[0082] The first determination unit 504 is used to determine, based on a plurality of monitoring data, a target size corresponding to the target coal pillar when the target coal pillar loses its bearing capacity.

[0083] The second determining unit 506 is used to determine the bearing performance index of the target coal pillar by using the target size, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar.

[0084] The third determination unit 508 is used to determine the anti-bumping strategy of the target coal pillar in response to the bearing performance index being greater than the bearing performance index threshold, wherein the anti-bumping strategy is used to control the stress of the target coal pillar acting on the underlying working surface of the target coal pillar.

[0085] The device for determining the anti-bumping strategy of the coal pillar of this embodiment, through a processing unit, drills multiple positions of the target coal pillar in the coal seam respectively, and monitors the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions; through a first determination unit, based on the multiple monitoring data, determines the target size corresponding to the target coal pillar when it loses its bearing capacity; through a second determination unit, uses the target size to determine the bearing performance index of the target coal pillar, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; through a third determination unit, in response to the bearing performance index being greater than the bearing performance index threshold, determines the anti-bumping strategy of the target coal pillar, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar, thereby solving the technical problem of low safety of mining the underlying working surface and achieving the technical effect of improving the safety of mining the underlying working surface.

[0086] The embodiment of the present application may provide a computer terminal, which may be any computer terminal device in a computer terminal group. Optionally, in this embodiment, the computer terminal may also be replaced by a terminal device such as a mobile terminal.

[0087] Optionally, in this embodiment, the computer terminal may be located in at least one network device among a plurality of network devices of the computer network.

[0088] In this embodiment, the above-mentioned computer terminal can execute the program code of the following steps in the method for determining the anti-bumping strategy of the coal pillar: drilling multiple positions of the target coal pillar in the coal seam respectively, and monitoring the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions; based on the multiple monitoring data, determining the target size corresponding to the target coal pillar when it loses its bearing capacity; using the target size, determining the bearing performance index of the target coal pillar, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than the bearing performance index threshold, determining the anti-bumping strategy of the target coal pillar, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar.

[0089] Optionally, Figure 6 is a structural block diagram of a computer terminal according to an embodiment of the present application, such as Figure 6 As shown, the computer terminal 608 may include: one or more (only one is shown in the figure) processors 602 , a memory 604 , and a transmission device 606 .

[0090] Among them, the memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the method and device for determining the anti-collision strategy of the coal pillar in the embodiment of the present application. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, that is, the method for determining the anti-collision strategy of the coal pillar described above is realized. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the computer terminal 608 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0091] The processor can call the information and application programs stored in the memory through the transmission device to execute the following steps: drilling multiple positions of the target coal pillar in the coal seam respectively, and monitoring the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions; based on the multiple monitoring data, determining the target size corresponding to the target coal pillar when it loses its bearing capacity; using the target size, determining the bearing performance index of the target coal pillar, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than the bearing performance index threshold, determining the anti-bumping strategy of the target coal pillar, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar.

[0092] It can be understood by those skilled in the art that Figure 6 The structure shown is for illustration only, and the computer terminal 608 may also be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a PDA, a mobile Internet device (Mobile Internet Devices, abbreviated as MID), a PAD, or other terminal devices. Figure 6 The structure of the computer terminal 608 is not limited. For example, the computer terminal 608 may also include Figure 6 More or fewer components (such as network interfaces, display devices, etc.) shown in, or having Figure 6 Different configurations shown.

[0093] A person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and the program can be stored in a computer-readable storage medium, and the storage medium may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0094] According to an embodiment of the present application, a computer-readable storage medium is further provided, the computer-readable storage medium comprising a stored program, wherein the program executes the method for determining the anti-bumping strategy of the coal pillar in the above embodiment.

[0095] Optionally, in this embodiment, the computer-readable storage medium may be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the mobile terminals in a mobile terminal group.

[0096] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: drilling multiple positions of a target coal pillar in a coal seam respectively, and monitoring the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions; determining a target size corresponding to the target coal pillar when it loses its bearing capacity based on the multiple monitoring data; determining a bearing performance index of the target coal pillar using the target size, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than a bearing performance index threshold, determining an anti-bumping strategy for the target coal pillar, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar.

[0097] Optionally, the computer-readable storage medium may also execute program code for the following steps: in response to the bearing performance index being greater than a bearing performance index threshold, determining the impact degree of the target coal pillar on the underlying working face; and determining an anti-impact strategy that matches the impact degree.

[0098] Optionally, the computer-readable storage medium may also execute program codes of the following steps: determining the impact range of the target coal pillar on the underlying working face; and determining an anti-impact strategy that matches the impact degree based on the impact range.

[0099] Optionally, the computer-readable storage medium may also execute program codes for the following steps: determining a mean of a plurality of monitoring data to obtain initial monitoring data; and converting the initial monitoring data to obtain a target size.

[0100] Optionally, the computer-readable storage medium may also execute program codes of the following steps: retrieving a correction coefficient; correcting initial monitoring data using the correction coefficient to obtain target monitoring data; and converting the target monitoring data to obtain a target size.

[0101] Optionally, the above-mentioned computer-readable storage medium can also execute program codes of the following steps: in response to the target size being greater than the width of the target coal pillar, determining that the bearing performance index is less than or equal to the bearing performance index threshold; in response to the target size being less than or equal to the width, determining that the bearing performance index is greater than the bearing performance index threshold.

[0102] In this embodiment, the target coal pillar is drilled to obtain multiple monitoring data of the target coal pillar. Based on the multiple monitoring data, the target size corresponding to the target coal pillar losing its bearing capacity can be determined. The bearing capacity of the target coal pillar is judged based on the target size to determine the actual bearing capacity of the coal pillar (that is, the bearing performance index). Furthermore, if the bearing performance index is greater than the bearing performance index threshold, an anti-bumping strategy can be determined. Using the anti-bumping strategy, the target coal pillar can be protected, thereby solving the technical problem of low safety of the underlying working face in mining and achieving the technical effect of improving the safety of the underlying working face in mining.

[0103] According to an embodiment of the present application, a processor is further provided, which is used to run a program, wherein when the program is run by the processor, the method for determining the anti-collision strategy of the coal pillar in the above embodiment is executed.

[0104] Optionally, in this embodiment, the computer terminal may be located in at least one network device among a plurality of network devices of the computer network.

[0105] In this embodiment, the above-mentioned computer terminal can execute the program code of the following steps in the method for determining the anti-bumping strategy of the coal pillar: drilling multiple positions of the target coal pillar in the coal seam respectively, and monitoring the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions; based on the multiple monitoring data, determining the target size corresponding to the target coal pillar when it loses its bearing capacity; using the target size, determining the bearing performance index of the target coal pillar, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than the bearing performance index threshold, determining the anti-bumping strategy of the target coal pillar, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar.

[0106] Among them, the memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the method and device for determining the anti-collision strategy of the coal pillar in the embodiment of the present application. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, that is, the method for determining the anti-collision strategy of the coal pillar mentioned above is realized. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0107] The processor can call the information and application programs stored in the memory through the transmission device to execute the following steps: drilling multiple positions of the target coal pillar in the coal seam respectively, and monitoring the target coal pillar after drilling to obtain multiple monitoring data corresponding to the multiple positions; based on the multiple monitoring data, determining the target size corresponding to the target coal pillar when it loses its bearing capacity; using the target size, determining the bearing performance index of the target coal pillar, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; in response to the bearing performance index being greater than the bearing performance index threshold, determining the anti-bumping strategy of the target coal pillar, wherein the anti-bumping strategy is used to control the target coal pillar and the stress acting on the underlying working surface of the target coal pillar.

[0108] Optionally, the processor may also execute program code of the following steps: in response to the bearing performance index being greater than a bearing performance index threshold, determining the impact degree of the target coal pillar on the underlying working face; and determining an anti-impact strategy that matches the impact degree.

[0109] Optionally, the processor may also execute program codes of the following steps: determining the impact range of the target coal pillar on the underlying working surface; and determining an anti-impact strategy that matches the impact degree based on the impact range.

[0110] Optionally, the processor may also execute program codes of the following steps: determining a mean of a plurality of monitoring data to obtain initial monitoring data; and converting the initial monitoring data to obtain a target size.

[0111] Optionally, the processor may also execute program code of the following steps: receiving multiple historical reports from multiple information collection channels; preprocessing the historical reports; performing feature extraction on the preprocessed historical reports to obtain a second feature vector set corresponding to the preprocessed historical reports.

[0112] Optionally, the processor may also execute program code of the following steps: in response to the target size being greater than the width of the target coal pillar, determining that the bearing performance index is less than or equal to a bearing performance index threshold; in response to the target size being less than or equal to the width, determining that the bearing performance index is greater than the bearing performance index threshold.

[0113] Optionally, the processor may also execute program code for the following steps: determining the target object's preference for the association report based on the target object's behavior information, wherein the behavior information is used to characterize the target object's document preference; in response to the preference degree being greater than a preference threshold, determining that the association degree is greater than an association threshold; in response to the preference degree being less than or equal to the preference threshold, determining that the association degree is less than or equal to the association threshold.

[0114] In this embodiment, the above-mentioned computer terminal can execute the program code of the following steps in the method for determining the anti-collision strategy of the coal pillar: obtaining the pending report of the target object; determining the pending chapter in the pending report; determining the third feature vector set corresponding to the pending chapter, wherein the third feature vector set is at least used to characterize the text content of the pending chapter and / or the attribute information corresponding to the pending chapter; using the third feature vector set, determining at least one associated chapter associated with the pending chapter in multiple historical chapters; respectively determining the degree of association between at least one associated chapter and the pending chapter; based on the degree of association, determining the chapter to be recommended in at least one associated chapter.

[0115] Using the embodiment of the present application, the target coal pillar is drilled to obtain multiple monitoring data of the target coal pillar. Based on the multiple monitoring data, the target size corresponding to the target coal pillar losing its bearing capacity can be determined. The bearing capacity of the target coal pillar is judged based on the target size to determine the actual bearing capacity of the coal pillar (that is, the bearing performance index). Furthermore, if the bearing performance index is greater than the bearing performance index threshold, an anti-bumping strategy can be determined. Using the anti-bumping strategy, the target coal pillar can be protected, thereby solving the technical problem of low safety of the underlying working face under mining and achieving the technical effect of improving the safety of the underlying working face under mining.

[0116] According to an embodiment of the present application, a computer program product is also provided. The computer program product includes computer instructions, wherein when the computer instructions are executed by a processor, the method for determining the anti-bumping strategy of the coal pillar in the above embodiment is implemented.

[0117] An embodiment of the present application may provide an electronic device, which may include a memory and a processor.

[0118] Figure 7 It is a block diagram of an electronic device for determining a method for an anti-bumping strategy of a coal pillar according to an embodiment of the present application. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0119] like Figure 7As shown, the device 700 includes a computing unit 701, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 702 or a computer program loaded from a storage unit 708 to a random access memory (RAM) 703. In the RAM 703, various programs and data required for the operation of the device 700 can also be stored. The computing unit 701, the ROM 702, and the RAM 703 are connected to each other via a bus 704. An input / output (I / O) interface 705 is also connected to the bus 704.

[0120] A number of components in the device 700 are connected to the I / O interface 705, including: an input unit 706, such as a keyboard, a mouse, etc.; an output unit 707, such as various types of displays, speakers, etc.; a storage unit 708, such as a disk, an optical disk, etc.; and a communication unit 709, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 709 allows the device 700 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0121] The computing unit 701 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 701 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The computing unit 701 performs the various methods and processes described above, such as a verification method for data. For example, in some embodiments, the verification method for data may be implemented as a computer software program, which is tangibly included in a machine-readable medium, such as a storage unit 708. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 700 via the ROM 702 and / or the communication unit 709. When the computer program is loaded into the RAM 703 and executed by the computing unit 701, one or more steps of the verification method for data described above may be executed. Alternatively, in other embodiments, the computing unit 701 may be configured to execute the data verification method in any other appropriate manner (for example, by means of firmware).

[0122] According to an embodiment of the present application, a method for determining an anti-collision strategy for a coal pillar is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0123] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on a chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that are executable and / or interpreted on a programmable system including at least one programmable processor that may be a dedicated or general purpose programmable processor that may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0124] The program code for implementing the method of the present application can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0125] In the context of the present application, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0126] To provide interaction with a user, the systems and techniques described herein may be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or an LCD (liquid crystal display, monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a path ball) through which the user can provide input to the computer. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0127] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a Local Area Network (LAN), a Wide Area Network (WAN), and the Internet.

[0128] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0129] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0130] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0131] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0132] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0133] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0134] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0135] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for determining a coal pillar anti-bumping strategy, characterized in that: include: Drilling a plurality of positions of a target coal pillar in a coal seam respectively, and monitoring the target coal pillar after drilling to obtain a plurality of monitoring data corresponding to the plurality of positions; Based on the plurality of monitoring data, determining a target size corresponding to the target coal pillar when the target coal pillar loses its bearing capacity; Determining a bearing performance index of the target coal pillar using the target size, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; In response to the bearing performance index being greater than a bearing performance index threshold, an anti-bumping strategy for the target coal pillar is determined, wherein the anti-bumping strategy is used to control the stress of the target coal pillar acting on an underlying working surface of the target coal pillar.

2. The method according to claim 1, characterized in that In response to the bearing performance index being greater than a bearing performance index threshold, determining the anti-bumping strategy of the target coal pillar includes: In response to the bearing performance index being greater than the bearing performance index threshold, determining the impact degree of the target coal pillar on the underlying working face; The anti-impact strategy matching the impact level is determined.

3. The method according to claim 2, characterized in that The determining the anti-impact strategy matching the impact degree includes: Determining the impact range of the target coal pillar on the underlying working face; Based on the impact range, the anti-impact strategy matching the impact degree is determined.

4. The method according to claim 1, characterized in that The determining, based on the plurality of monitoring data, a target size corresponding to the target coal pillar when the target coal pillar loses its bearing capacity comprises: Determine the mean of the plurality of monitoring data to obtain initial monitoring data; The initial monitoring data is converted to obtain the target size.

5. The method according to claim 4, characterized in that The converting the initial monitoring data to obtain the target size includes: Retrieve the correction factor; Correcting the initial monitoring data using the correction coefficient to obtain the target monitoring data; The target monitoring data is converted to obtain the target size.

6. The method according to claim 1, characterized in that The step of determining the bearing performance index of the target coal pillar by using the target size includes: In response to the target size being greater than the width of the target coal pillar, determining that the bearing performance index is less than or equal to a bearing performance index threshold; In response to the target size being less than or equal to the width, it is determined that the bearing performance indicator is greater than a bearing performance indicator threshold.

7. A device for determining a coal pillar anti-bumping strategy, characterized in that: include: A processing unit, used to perform drilling processing on multiple positions of target coal pillars in the coal seam respectively, and monitor the target coal pillars after drilling to obtain multiple monitoring data corresponding to the multiple positions; A first determining unit is used to determine, based on the plurality of monitoring data, a target size corresponding to the target coal pillar when the target coal pillar loses its bearing capacity; a second determining unit, configured to determine a bearing performance index of the target coal pillar using the target size, wherein the bearing performance index is used to represent the bearing capacity of the target coal pillar; The third determination unit is used to determine the anti-bumping strategy of the target coal pillar in response to the bearing performance index being greater than the bearing performance index threshold, wherein the anti-bumping strategy is used to control the stress of the target coal pillar acting on the underlying working surface of the target coal pillar.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method according to any one of claims 1 to 6.

9. A processor, characterized in that: The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 6 when being run by the processor.

10. A computer program product, characterized in that The method comprises computer instructions, which, when executed by a processor, implement the method according to any one of claims 1 to 6.

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