Load reduction anti-impact method and device, electronic equipment and storage medium

Abstract

The invention provides a load reduction and scour prevention method and device, electronic equipment and a storage medium, and relates to the technical field of coal mine safety mining, and the load reduction and scour prevention method comprises the steps that a rock stratum histogram of working face rock stratum distribution is obtained, and drilling hole arrangement information is determined according to the rock stratum histogram; according to the drill hole arrangement information, generating a drill hole task, and sending the drill hole task to a drill hole device so as to arrange a drill hole in a target layer of an overlying rock layer on the working surface; in response to completion of the drilling task by the drilling equipment, controlling the high-pressure pump to inject fracturing fluid into the drill hole so as to perform hydraulic fracturing on the target rock stratum; in response to completion of hydraulic fracturing, acquiring a hole wall image in the drill hole, and determining a fracturing effect according to the hole wall image; and the target drill hole in the drill holes is determined based on the fracturing effect, explosives are put into the target drill hole for blasting fracturing, and the technical problems that in the prior art, a single pressure relief effect has limitation, and the prevention and treatment efficiency is limited are solved.

Description

Technical Field

[0001] The present application relates to the technical field of safe mining of coal mines, and in particular to a load reduction and anti-collision method, device, electronic equipment and storage medium. Background Art

[0002] Hard roof is the main factor that induces rock burst. Due to its dense and hard characteristics, it is easy to cause disturbance and loading on the mining face, resulting in increased rock burst risk. The core of the hard roof rock burst prevention and control method is to change the rock structure, destroy its integrity, reduce the overall strength, and enable it to be mined and released at the same time, avoiding the formation of large-scale cantilever structures. At present, the main methods for weakening hard roofs include hydraulic fracturing technology and blasting unloading technology. Compared with blasting unloading, hydraulic fracturing technology has the advantages of a large weakening range and low cost. Blasting unloading has the advantage of a strong permeability-enhancing pre-cracking effect.

[0003] However, both hydraulic fracturing and blasting unloading have certain limitations. Hydraulic fracturing technology is subject to the structure of the rock formations, and leakage is prone to occur during the fracturing process, and the seam network cannot be effectively expanded. Blasting unloading has the problem of a small unloading range, and repeated unloading construction is often required. Therefore, a single unloading method has limitations in weakening the roof, and its prevention and control effectiveness is limited. Sometimes multiple rounds of unloading are required, and the project workload is large. Summary of the Invention

[0004] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the first purpose of this application is to propose a load reduction and anti-impact method to achieve efficient roof pressure relief.

[0006] The second purpose of this application is to provide a load reduction and anti-collision device.

[0007] The third objective of this application is to provide an electronic device.

[0008] The fourth object of this application is to provide a computer-readable storage medium.

[0009] A fifth object of this application is to provide a computer program product.

[0010] To achieve the above objectives, the first embodiment of the present application proposes a load reduction and anti-shock method, comprising:

[0011] Obtaining a rock layer histogram of rock layer distribution at the working face, and determining drilling arrangement information based on the rock layer histogram;

[0012] generating a drilling task according to the drilling arrangement information, and sending the drilling task to a drilling device to arrange drilling at a target layer of the overburden stratum on the working surface;

[0013] In response to the drilling equipment completing the drilling task, controlling the high-pressure pump to inject fracturing fluid into the borehole to hydraulically fracture the target rock formation;

[0014] In response to completion of hydraulic fracturing, acquiring a borehole wall image in the borehole, and determining a fracturing effect based on the borehole wall image;

[0015] A target borehole in the boreholes is determined based on the fracturing effect, and explosives are placed into the target borehole for blasting and fracturing.

[0016] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a load reduction and anti-collision device, comprising:

[0017] an acquisition module, configured to acquire a stratum histogram of stratum distribution on the working face and determine drilling arrangement information based on the stratum histogram;

[0018] a drilling module, configured to generate a drilling task according to the drilling arrangement information, and send the drilling task to a drilling device so as to arrange drilling at a target layer of the overburden stratum on the working surface;

[0019] a hydraulic fracturing module, configured to control a high-pressure pump to inject fracturing fluid into the borehole in response to the drilling equipment completing the drilling task, so as to hydraulically fracture the target rock formation;

[0020] an effect evaluation module, configured to obtain a borehole wall image in response to completion of hydraulic fracturing, and determine a fracturing effect based on the borehole wall image;

[0021] The blasting module is used to determine a target borehole in the borehole based on the fracturing effect, and to put explosives into the target borehole to perform blasting and fracturing.

[0022] To achieve the above-mentioned purpose, a third embodiment of the present application provides an electronic device, comprising: a processor, and a memory communicatively connected to the processor;

[0023] The memory stores computer-executable instructions;

[0024] The processor executes the computer-executable instructions stored in the memory to implement the method described in the embodiment of the first aspect.

[0025] To achieve the above-mentioned purpose, the fourth embodiment of the present application proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the method described in the first embodiment.

[0026] To achieve the above-mentioned purpose, the fifth embodiment of the present application proposes a computer program product, which implements the method described in the first embodiment when the computer program is executed by a processor.

[0027] The load reduction and anti-shock method, device, electronic device and storage medium provided in the present application determine the drilling layout information according to the distribution of rock formations, generate a drilling task based on the drilling layout information, and the drilling task is used to instruct the drilling equipment to implement drilling in the target layer, the number of holes to be drilled and the drilling direction. After the drilling is completed, the high-pressure pump is controlled to inject fracturing fluid into the borehole, thereby implementing hydraulic fracturing in the borehole, enhancing the weakening degree of the hard roof, weakening the impact of the disturbance of the hard roof, and reducing the impact risk of the working space. Furthermore, after the hydraulic fracturing is completed, the borehole wall image in the borehole is obtained, and the fracturing effect of the hydraulic fracturing is determined according to the borehole wall image. The target borehole that needs secondary fracturing is screened according to the fracturing effect, and explosives are filled into the target borehole for blasting fracturing. Both hydraulic fracturing and blasting fracturing are performed in the same borehole, thereby reducing the amount of repeated drilling work, improving the efficiency of load reduction and anti-shock, making up for the limitations of a single pressure relief method, and improving the level of disaster management.

[0028] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0030] Figure 1 A flow chart of a load reduction and anti-shock method provided in an embodiment of the present application;

[0031] Figure 2 A cross-sectional diagram of a load reduction and anti-shock method provided in an embodiment of the present application;

[0032] Figure 3 A schematic cross-sectional view of a load reduction and anti-collision method provided in an embodiment of the present application;

[0033] Figure 4 This is a structural schematic diagram of a load reduction and anti-collision device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0035] The following describes the load reduction and anti-shock method, device, electronic device, and storage medium of the embodiments of the present application with reference to the accompanying drawings.

[0036] Figure 1 This is a flow chart of a load reduction and anti-shock method provided in an embodiment of the present application. Figure 1 As shown, the method includes the following steps:

[0037] S101, obtaining a stratum histogram of stratum distribution on the working face, and determining drilling arrangement information based on the stratum histogram.

[0038] In some embodiments, a rock column chart, also known as a stratigraphic column chart, is a graphical tool used in geology to intuitively display the vertical distribution characteristics of strata. It is arranged vertically in stratigraphic age order and annotated with elements such as lithology, thickness, and contact relationships.

[0039] In some embodiments, the drilling arrangement information may include, but is not limited to, target horizon, number of drill holes, and drilling direction.

[0040] Optionally, the thickness of the hard rock layer above the coal seam can be determined based on the rock layer column chart; in response to the rock layer thickness being greater than or equal to the preset thickness, the hard rock layer is determined to be the target layer for drilling; for example, if the rock layer thickness of a certain hard rock layer is 12 meters, which is greater than the preset thickness of 10 meters, then the current hard rock layer is determined to be the target layer for drilling.

[0041] In some embodiments, if there are multiple hard rock layers with a thickness greater than or equal to a preset thickness, the hard rock layer closest to the coal seam can be preferentially selected as the target layer; optionally, if there is no hard rock layer with a thickness greater than or equal to the preset thickness, the target layer is determined based on a comprehensive analysis of multiple combined layers, for example, by professionals based on the processing specifications for composite roof drilling.

[0042] In some embodiments, the length of the working surface can be obtained, and the number of holes to be drilled can be determined based on the length of the working surface and the preset interval distance; for example, if the working surface is 100m and the preset interval distance is 20m, the number of holes to be drilled is 5.

[0043] In some embodiments, the strike direction and the inclination direction of the working face may also be identified and used as the drilling direction.

[0044] S102: Generate a drilling task based on the drilling arrangement information, and send the drilling task to the drilling equipment to arrange drilling at a target layer of the overburden stratum on the working surface.

[0045] Optionally, a drilling task is generated according to the number of drill holes, target layer and drilling direction in the drilling arrangement information, and the drilling task is used to indicate the implementation of the drilling.

[0046] In some embodiments, the drilling equipment may be a rotary coal drill. In other embodiments, the drilling equipment may be a fully hydraulic tunnel drill or a pneumatic crawler drill.

[0047] Furthermore, the drilling equipment arranges the drilling holes according to the drilling task; in this embodiment, the downhole short-hole fracturing drilling holes are arranged along the inclination direction of the working face, and the downhole short-hole fracturing drilling holes are arranged along the inclination direction of the working face, such as Figure 2 As shown, (1) and (2) are downhole short-hole fracturing drill holes arranged along the inclination of the working face, and (3) is a downhole short-hole fracturing drill hole arranged along the strike of the working face.

[0048] S103 , in response to the drilling equipment completing the drilling task, controlling the high-pressure pump to inject fracturing fluid into the borehole to hydraulically fracture the target rock formation.

[0049] After the drilling equipment completes the drilling task, that is, after the borehole is arranged, hydraulic fracturing is carried out by controlling the high-pressure pump to inject fracturing fluid.

[0050] In some embodiments, the high-pressure pump can be controlled to perform segmented sealing at the bottom of the borehole according to the segment length; that is, the borehole is divided into multiple segments for fracturing based on the segment length, and each segment can be divided from the packer.

[0051] In response to the completion of each segment separation, the high-pressure pump is controlled to perform hydraulic fracturing on all the separated segments according to the backward fracturing process, that is, hydraulic fracturing is performed in reverse from the deepest isolation segment at the bottom of the hole. After fracturing at the deepest point, the pump is moved to the adjacent separated segment to inject fracturing fluid and perform a new round of hydraulic fracturing. Similarly, the fracturing process is completed based on the backward fracturing process, and the pressure of the high-pressure pump is used to fracture the hard rock formation. On the one hand, a fracture network is formed on the hard roof of the working face through the fracturing action of the working face and the fracturing boreholes inclined to the working face, thereby reducing the degree of disturbance of the long cantilever structure of the working face. On the other hand, a fracture network is formed outside the working face through the fracturing of the fracturing boreholes inclined to the working face, thereby reducing the degree of disturbance of the long cantilever structure of the adjacent goaf.

[0052] S104 , in response to the completion of hydraulic fracturing, obtaining a borehole wall image in the borehole, and determining a fracturing effect based on the borehole wall image.

[0053] After hydraulic fracturing is completed, the borehole wall image in the borehole can be collected based on the peep probe, and the borehole wall damage depth in the borehole wall image can be determined; optionally, the probe can be directly inserted into the borehole to observe and record the borehole wall image in real time. The probe contains an LED light source and a camera. The collected video signal is transmitted to the host through a transmission cable. The host receives the depth sensor and video signal respectively, calculates the probe depth, and can record and map the actual situation in the borehole in real time to obtain a borehole wall image.

[0054] Optionally, the fracturing effect can be determined based on the damage of the hole wall in the hole wall image. For example, the depth of the hole wall damage is determined according to the hole wall image. The deeper the hole wall damage depth, the better the fracturing effect is determined. Therefore, the hole wall damage depth can be compared with the crushing threshold. In response to the hole wall damage depth being greater than or equal to the crushing threshold, the fracturing effect is determined to be normal.

[0055] Accordingly, in response to the hole wall damage depth being less than the crushing threshold, it is determined that the fracturing effect is insufficient.

[0056] S105: determining a target borehole in the borehole based on the fracturing effect, and placing explosives into the target borehole for blasting and fracturing.

[0057] In some embodiments, all boreholes with insufficient fracturing effects may be screened and used as target boreholes. In this embodiment, the target boreholes are the boreholes for secondary fracturing.

[0058] Furthermore, the layout position of the target borehole can be determined; based on the layout position of the target borehole, the blasting task is determined, and the blasting task includes at least the blasting position, blasting sequence and blasting interval; the blasting position is also the layout position of the target borehole. In this embodiment, hydraulic fracturing and explosive fracturing are performed in the same borehole to achieve multiple uses of one hole and reduce the time consumption of repeated drilling; the blasting sequence is the order in which different target boreholes are blasted, and the blasting interval refers to the time interval between blasting different target boreholes.

[0059] A blasting task is sent to the first delivery device for blasting materials; the first delivery device is controlled to add emulsion explosives to the fracturing layer in the target borehole based on the blasting task; that is, the first delivery device for delivering explosives determines the explosive delivery position according to the blasting position in the blasting task, and determines the explosive delivery order according to the blasting order. In this embodiment, three-stage emulsion explosives are delivered.

[0060] In some embodiments, the blasting priority of different target boreholes can also be determined based on the blasting task; the first delivery device is controlled to add emulsion explosives in sequence according to the blasting priority; that is, the emulsion explosives are added in sequence according to the blasting order, wherein multiple blasting boreholes can have the same blasting priority.

[0061] In some embodiments, the amount of emulsion explosives delivered can also be determined based on the fracturing effect of the target borehole; for example, if the fracturing effect is seriously insufficient, the maximum dose of explosives is delivered, and if the fracturing effect is close to normal, a smaller dose of explosives is delivered to reduce resource waste. The amount of emulsion explosives delivered for each target borehole is sent to the first delivery device for blasting materials; the first delivery device is controlled to add emulsion explosives into the target borehole according to the amount of explosives delivered.

[0062] Furthermore, after the explosives are placed, a sealing task is sent to the second placing device for the sealing material, and the second placing device is controlled to place the sealing material into the target borehole for sealing based on the sealing task.

[0063] Optionally, the sealing material can be clay foam made by mixing clay and water, or a cement-based material, etc. The specific material can be selected according to the blasting requirements and coal seam conditions, with priority given to materials with better flame retardancy.

[0064] For example, Figure 2 and Figure 3 As shown, (4) and (5) are the pre-cracking holes for inclined blasting arranged in the fracturing hole after (1) and (2) fracturing are completed, and (6) is the pre-cracking hole for strike blasting arranged in the fracturing hole after fracturing is completed, wherein the upper half is the blasting hole charging section, and the lower half is the blasting hole sealing section. After the blasting materials and sealing materials are placed in the blasting holes, blasting fracturing is carried out based on the blasting sequence and blasting interval, which further promotes the expansion and penetration of micro-cracks in the fracturing network, enhances the fracture network expansion rate and improves the load shedding efficiency.

[0065] In this embodiment, the drilling layout information is determined based on the distribution of rock formations, and a drilling task is generated based on the drilling layout information. The drilling task is used to instruct the drilling equipment to perform drilling at the target layer, the number of holes to be drilled, and the drilling direction. After the drilling is completed, the high-pressure pump is controlled to inject fracturing fluid into the borehole, thereby performing hydraulic fracturing in the borehole. The process of segmented sealing and backward fracturing is used to improve the expansion rate of the fracture network, enhance the weakening degree of the hard roof, weaken the influence of the hard roof disturbance, reduce the impact risk of the working space, and further After hydraulic fracturing is completed, an image of the borehole wall is obtained, and the hydraulic fracturing effect is determined based on the borehole wall image. In this embodiment, the fracturing effect is determined based on the borehole wall crushing depth, and boreholes with obviously insufficient fracturing effect are screened out as target boreholes that require secondary fracturing. Emulsion explosives are filled in the target boreholes for blasting fracturing based on the blasting task. Both hydraulic fracturing and blasting fracturing are performed in the same borehole, reducing the amount of repeated drilling work, improving the efficiency of load reduction and anti-bumping, overcoming the limitations of a single pressure relief method, and improving the level of disaster management.

[0066] In order to implement the above embodiment, the present application also proposes a load reduction and anti-collision device.

[0067] Figure 4 This is a schematic diagram of the structure of a load reduction and anti-collision device provided in an embodiment of the present application. Figure 4 As shown, the load reduction and anti-collision device 400 includes:

[0068] An acquisition module 401 is used to obtain a rock layer histogram of the rock layer distribution on the working face and determine drilling arrangement information based on the rock layer histogram;

[0069] The drilling module 402 is used to generate a drilling task based on the drilling arrangement information and send the drilling task to the drilling equipment to arrange drilling at the target layer of the overburden stratum on the working face;

[0070] The hydraulic fracturing module 403 is configured to control the high-pressure pump to inject fracturing fluid into the borehole in response to the drilling equipment completing the drilling task, so as to hydraulically fracture the target rock formation;

[0071] An effect evaluation module 404 is configured to obtain a borehole wall image in response to completion of hydraulic fracturing, and determine a fracturing effect based on the borehole wall image;

[0072] The blasting module 405 is used to determine a target borehole in the borehole based on the fracturing effect, and to place explosives into the target borehole to perform blasting and fracturing.

[0073] Furthermore, in a possible implementation of the embodiment of the present application, the acquisition module 401 includes:

[0074] Determine the thickness of the hard rock layer above the coal seam based on the rock layer histogram;

[0075] In response to the rock formation thickness being greater than or equal to a preset thickness, determining the hard rock formation as a target layer for drilling;

[0076] Obtain the length of the working surface and determine the number of holes to be drilled based on the length of the working surface and the preset interval distance;

[0077] Identify the strike direction and the inclination direction of the working face, and use the strike direction and the inclination direction of the working face as the drilling direction.

[0078] Furthermore, in a possible implementation of the embodiment of the present application, the hydraulic fracturing module 403 includes:

[0079] Control the high-pressure pump to seal the bottom of the drilled hole in sections according to the section length;

[0080] In response to the completion of separation of each segment, the high-pressure pump is controlled to hydraulically fracture all the separated segments according to the backward fracturing process.

[0081] Furthermore, in a possible implementation of the embodiment of the present application, the effect evaluation module 404 includes:

[0082] Collecting a borehole wall image based on a peep probe and determining the borehole wall damage depth in the borehole wall image;

[0083] In response to the hole wall damage depth being greater than or equal to the fracture threshold, determining that the fracturing effect is normal;

[0084] In response to the hole wall damage depth being less than the fracture threshold, it is determined that the fracturing effect is insufficient.

[0085] Furthermore, in a possible implementation of the embodiment of the present application, the blasting module 405 includes:

[0086] Among all the boreholes, those with insufficient fracturing effect are selected as target boreholes.

[0087] Furthermore, in a possible implementation of the embodiment of the present application, the blasting module 405 includes:

[0088] Determine the location of target drilling holes;

[0089] Determine the blasting task according to the layout location of the target drill hole, and the blasting task at least includes the blasting location, blasting sequence and blasting interval;

[0090] Sending a blasting task to a first delivery device for blasting materials;

[0091] Controlling the first delivery device to add emulsion explosives to the fracturing layer in the target borehole based on the blasting task, and sending a sealing task to the second delivery device of the sealing material after the explosive delivery is completed;

[0092] The second delivery device is controlled to deliver the sealing material into the target borehole for sealing based on the sealing task.

[0093] Furthermore, in a possible implementation of the embodiment of the present application, the apparatus 400 further includes:

[0094] Determine the blasting priority of different target boreholes based on the blasting task;

[0095] The first delivery device is controlled to add emulsion explosives in sequence according to blasting priorities.

[0096] Furthermore, in a possible implementation of the embodiment of the present application, the apparatus 400 further includes:

[0097] Determine the amount of emulsion explosives to be added based on the fracturing effect of the target borehole;

[0098] Sending the amount of emulsion explosive corresponding to each target borehole to the first delivery device for blasting materials;

[0099] The first delivery device is controlled to add emulsion explosives into the target borehole according to the delivery amount of explosives.

[0100] It should be noted that the above explanation of the embodiment of the load reduction and anti-collision method is also applicable to the load reduction and anti-collision device of this embodiment, and will not be repeated here.

[0101] In the embodiment of the present application, the drilling arrangement information is determined based on the distribution of the rock formations, and the drilling task is generated based on the drilling arrangement information. The drilling task is used to instruct the drilling equipment to implement drilling in the target layer, the number of holes to be drilled, and the drilling direction. After the drilling is completed, the high-pressure pump is controlled to inject fracturing fluid into the borehole, thereby implementing hydraulic fracturing in the borehole. The process of segmented sealing and backward fracturing is used to improve the expansion rate of the fracture network, enhance the weakening degree of the hard roof, weaken the influence of the disturbance of the hard roof, reduce the impact risk of the working space, and further After hydraulic fracturing is completed, an image of the borehole wall is obtained, and the fracturing effect of the hydraulic fracturing is determined based on the borehole wall image. In this embodiment, the fracturing effect is determined based on the borehole wall crushing depth, and boreholes with obviously insufficient fracturing effect are screened out as target boreholes that require secondary fracturing. Based on the blasting task, emulsion explosives are filled in the target borehole for blasting fracturing. Both hydraulic fracturing and blasting fracturing are performed in the same borehole, which reduces the amount of repeated drilling work, improves the efficiency of load reduction and anti-impact, makes up for the limitations of a single pressure relief method, and improves the level of disaster management.

[0102] In order to implement the above embodiments, the present application also proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method provided by the above embodiments.

[0103] In order to implement the above embodiments, the present application also proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the methods provided by the above embodiments.

[0104] In order to implement the above embodiments, the present application also proposes a computer program product, including a computer program, which implements the methods provided by the above embodiments when executed by a processor.

[0105] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this application are in compliance with relevant laws and regulations and do not violate public order and good morals.

[0106] It is important to note that personal information collected from users should be used for legitimate and reasonable purposes and should not be shared or sold beyond these legitimate uses. Furthermore, such collection / sharing should be conducted only after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign an agreement / authorization that includes the relevant user information before using the feature. Furthermore, any necessary steps must be taken to safeguard and secure access to such personal information and ensure that others with access to personal information comply with its privacy policy and procedures.

[0107] This application contemplates providing implementations that allow users to selectively block the use or access of personal information data. Specifically, this disclosure contemplates providing hardware and / or software to prevent or block access to such personal information data. Risks can be minimized by limiting data collection and deleting data once it is no longer needed. Furthermore, where applicable, such personal information can be de-identified to protect user privacy.

[0108] In the descriptions of the foregoing embodiments, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0109] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0110] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0111] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the 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 (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program 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 the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0112] It should be understood that various parts of the present 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 a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0113] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0114] In addition, the functional units in the various embodiments of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into a module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0115] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A load reduction and anti-shock method, characterized in that: include: Obtaining a rock layer histogram of rock layer distribution at the working face, and determining drilling arrangement information based on the rock layer histogram; generating a drilling task according to the drilling arrangement information, and sending the drilling task to a drilling device to arrange drilling at a target layer of the overburden stratum on the working surface; In response to the drilling equipment completing the drilling task, controlling the high-pressure pump to inject fracturing fluid into the borehole to hydraulically fracture the target rock formation; In response to completion of hydraulic fracturing, acquiring a borehole wall image in the borehole, and determining a fracturing effect based on the borehole wall image; A target borehole in the boreholes is determined based on the fracturing effect, and explosives are placed into the target borehole for blasting and fracturing.

2. The method according to claim 1, characterized in that The drilling arrangement information includes target layer, number of drill holes and drilling direction. The determining of the drilling arrangement information according to the rock formation histogram includes: Determining the thickness of the hard rock layer above the coal seam based on the rock layer histogram; In response to the rock layer thickness being greater than or equal to a preset thickness, determining the hard rock layer as a target layer for drilling; Obtaining the length of the working surface, and determining the number of holes to be drilled based on the length of the working surface and a preset interval distance; The strike direction and the inclination direction of the working face are identified, and the strike direction and the inclination direction of the working face are used as the drilling direction.

3. The method according to claim 1 or 2, characterized in that The controlling the high-pressure pump to inject fracturing fluid into the borehole to hydraulically fracture the target rock formation comprises: Controlling the high-pressure pump to perform segmented sealing at the bottom of the borehole according to segment lengths; In response to the completion of separation of each segment, the high-pressure pump is controlled to hydraulically fracture all the separated segments according to the retreat fracturing process.

4. The method according to claim 1, wherein The acquiring of the borehole wall image and determining the fracturing effect according to the borehole wall image includes: collecting a borehole wall image in the borehole based on the peep probe, and determining the borehole wall damage depth in the borehole wall image; In response to the hole wall damage depth being greater than or equal to the fracture threshold, determining that the fracturing effect is normal; In response to the hole wall damage depth being less than a fracture threshold, it is determined that the fracturing effect is insufficient.

5. The method according to claim 4, characterized in that The determining a target borehole in the borehole based on the fracturing effect includes: The boreholes with insufficient fracturing effect among all the boreholes are screened as the target boreholes.

6. The method according to claim 5, characterized in that Placing explosives into the target borehole for blasting and fracturing, including: Determining the layout position of the target drill hole; Determining a blasting task according to the layout position of the target drill hole, wherein the blasting task at least includes a blasting position, a blasting sequence, and a blasting interval; sending the blasting task to a first delivery device for blasting materials; Controlling the first delivery device to add emulsion explosives to the fracturing layer in the target borehole based on the blasting task, and sending a sealing task to the second delivery device for sealing materials after the explosive delivery is completed; The second delivery device is controlled to deliver a sealing material into the target borehole for sealing based on the sealing task.

7. The method according to claim 6, characterized in that The method further comprises: Determining blasting priorities of different target boreholes based on the blasting tasks; The first delivery device is controlled to add emulsion explosives in sequence according to the blasting priority.

8. The method according to claim 6, characterized in that The method further comprises: Determining the amount of emulsion explosive to be added based on the fracturing effect of the target borehole; Sending the amount of emulsion explosive corresponding to each target borehole to a first blasting material delivery device; The first delivery device is controlled to add emulsion explosive into the target borehole according to the explosive delivery amount.

9. A load reduction and anti-collision device, characterized in that: include: an acquisition module, configured to acquire a stratum histogram of stratum distribution on the working face and determine drilling arrangement information based on the stratum histogram; a drilling module, configured to generate a drilling task according to the drilling arrangement information, and send the drilling task to a drilling device so as to arrange drilling at a target layer of the overburden stratum on the working surface; a hydraulic fracturing module, configured to control a high-pressure pump to inject fracturing fluid into the borehole in response to the drilling equipment completing the drilling task, so as to hydraulically fracture the target rock formation; an effect evaluation module, configured to obtain a borehole wall image in response to completion of hydraulic fracturing, and determine a fracturing effect based on the borehole wall image; The blasting module is used to determine a target borehole in the borehole based on the fracturing effect, and to put explosives into the target borehole to perform blasting and fracturing.

10. An electronic device, characterized in that: include: a processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 8.

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