Area stress indication method, device and electronic equipment based on artificial proportioning material

By embedding artificially proportioned stress-indicating particles at the test points and cutting them to form cross sections, regional stress cloud maps are generated, solving the problems of test body damage and difficulty in obtaining information in existing technologies, and realizing non-destructive stress cloud map acquisition.

CN116086665BActive Publication Date: 2026-03-20CCTEG CHINA COAL RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-23
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing stress indication technologies require the embedding of stress gauges or strain gauges within the test body, which can lead to overall damage to the test body and make it difficult to obtain regional stress cloud map information.

Method used

The regional stress indication method using artificially proportioned materials involves mixing and embedding multiple artificially proportioned stress indication particles at the measuring points of the test specimen, performing stress detection, cutting to form a cross-section, and generating a regional stress cloud map.

Benefits of technology

This avoids overall damage to the test specimen and reduces the difficulty of obtaining regional stress cloud map information.

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Abstract

The application discloses a regional stress indication method and device based on artificial proportioning materials and electronic equipment. The regional stress indication method based on artificial proportioning materials comprises the following steps: controlling a stress detection device to detect the stress of a test body; wherein the test body is a simulated test body or a coal rock model of which a plurality of stress indication particle materials with different artificial proportions are mixed and buried at measuring points; controlling a cutting device to cut the test body after stress detection at the measuring points, so as to form a cross section containing a plurality of stress indication particle materials with different artificial proportions; and generating a regional stress nephogram according to the crushing conditions of each stress indication particle material in the cross section. Thus, the method can not only not damage the integrity of the test body, but also reduce the difficulty of obtaining the information of the regional stress nephogram.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of monitoring of fully mechanized coal mining face, and particularly relates to a regional stress indication method and device based on artificial proportioning material and electronic equipment. BACKGROUND

[0002] In the related art, stress indication technology mainly detects stress directly through a stress meter or indirectly through a strain gauge. The stress meter or strain gauge relies on an electrical signal to transmit stress. However, both of the two schemes need to embed a stress meter or strain gauge in a test body. The stress meter or strain gauge needs to be connected to a measuring instrument through an external lead wire to monitor stress through the measuring instrument. This greatly damages the integrity of the test body and makes it difficult to obtain regional stress cloud information. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art.

[0004] To this end, a first object of the present application is to provide a regional stress indication method based on artificial proportioning material. The method is to mix and embed a plurality of stress indication granular materials with different artificial proportions at measuring points of a test body, and to perform stress testing on the test body. Then, the test body is cut, and a regional stress cloud map is generated according to the cross section obtained after cutting. This not only does not damage the integrity of the test body, but also reduces the difficulty of obtaining regional stress cloud information.

[0005] A second object of the present application is to provide a regional stress indication device based on artificial proportioning material.

[0006] A third object of the present application is to provide an electronic device.

[0007] A fourth object of the present application is to provide a computer readable storage medium.

[0008] A fifth object of the present application is to provide a computer program product.

[0009] To achieve the above objects, a first aspect of the present application provides a regional stress indication method based on artificial proportioning material, comprising the following steps: controlling a stress detection device to perform stress testing on a test body; wherein the test body is a simulated test body or a coal rock model of type coal in which a plurality of stress indication granular materials with different artificial proportions are mixed and embedded at measuring points; controlling a cutting device to cut the test body after stress testing at the measuring points to form a cross section containing a plurality of stress indication granular materials with different artificial proportions; and generating a regional stress cloud map according to the crushing conditions of each stress indication granular material in the cross section.

[0010] According to the regional stress indication method based on artificially proportioned materials, stress detection is first performed on a test body by a stress detection device, the test body being a simulated test body or a coal rock model in which a plurality of stress indication particle materials with different artificial proportions are mixed and embedded at measuring points, then a cutting device is controlled to cut the test body after stress detection at the measuring points to form a cross section containing a plurality of stress indication particle materials with different artificial proportions, and then a regional stress nephogram is generated according to the crushing conditions of the stress indication particle materials in the cross section. Thus, the method can not only not damage the integrity of the test body, but also reduce the difficulty of obtaining regional stress nephogram information.

[0011] In addition, the regional stress indication method based on artificially proportioned materials can have the following additional technical features.

[0012] According to an embodiment of the present application, the manufacturing process of the stress indication particle materials with different artificial proportions comprises:

[0013] Obtaining quartz sand and clay with different proportions;

[0014] Placing the quartz sand and the clay in a particle mold, and adding a binder in the particle mold;

[0015] Applying a set pressing stress to the particle mold to form stress indication particle materials with corresponding stress intensity.

[0016] According to an embodiment of the present application, the manufacturing process of the stress indication particle materials with different artificial proportions further comprises:

[0017] Calibrating the stress intensity of the stress indication particle materials with different artificial proportions and performing dyeing.

[0018] According to an embodiment of the present application, the generating of the regional stress nephogram according to the crushing conditions of the stress indication particle materials in the cross section comprises:

[0019] Obtaining an image of the cross section;

[0020] Generating a regional stress nephogram according to the crushing conditions of the stress indication particle materials in the image.

[0021] To achieve the above object, the second aspect of the present application provides a regional stress indicating device based on artificial proportioning material, comprising: a first control module, configured to control a stress detecting device to detect stress of a test body; wherein the test body is a simulated test body or a coal rock model of which a plurality of stress indicating granular materials of different artificial proportioning are mixed and buried at measuring points; a second control module, configured to control a cutting device to cut the test body after stress detection at the measuring points, so as to form a cross section containing a plurality of stress indicating granular materials of different artificial proportioning; and a generating module, configured to generate a regional stress nephogram according to the crushing conditions of each stress indicating granular material in the cross section.

[0022] The regional stress indicating device based on artificial proportioning material according to the embodiment of the present application controls the stress detecting device to detect stress of the test body through the first control module, the test body is a simulated test body or a coal rock model of which a plurality of stress indicating granular materials of different artificial proportioning are mixed and buried at measuring points, controls the cutting device to cut the test body after stress detection at the measuring points through the second control module, so as to form a cross section containing a plurality of stress indicating granular materials of different artificial proportioning, and generates a regional stress nephogram according to the crushing conditions of each stress indicating granular material in the cross section through the generating module. Thus, the device not only does not damage the integrity of the test body, but also reduces the difficulty of obtaining regional stress nephogram information.

[0023] In addition, the regional stress indicating device based on artificial proportioning material according to the embodiment of the present application can have the following additional technical features:

[0024] According to an embodiment of the present application, the manufacturing process of the stress indicating granular materials of different artificial proportioning comprises:

[0025] Obtaining quartz sand and clay of different proportioning;

[0026] Placing the quartz sand and the clay in a granular mold, and adding a binder in the granular mold;

[0027] Applying a set pressing stress to the granular mold to form stress indicating granular materials of corresponding stress intensity.

[0028] According to an embodiment of the present application, the manufacturing process of the stress indicating granular materials of different artificial proportioning further comprises:

[0029] Calibrating and dyeing the stress intensity of the stress indicating granular materials of different artificial proportioning.

[0030] According to an embodiment of the present application, the generating module comprises:

[0031] An obtaining unit, configured to obtain an image of the cross section;

[0032] The generating unit is configured to generate a regional stress nephogram according to the breaking of the stress indicating granular material in each of the images.

[0033] To achieve the above object, the third aspect of the present application provides an electronic device, comprising: a processor and a memory; wherein the processor runs a program corresponding to executable program codes stored in the memory, so as to implement the above-mentioned regional stress indicating method based on artificially proportioned material.

[0034] The electronic device of the embodiment of the present application, by executing the above-mentioned regional stress indicating method based on artificially proportioned material, can not only not damage the integrity of the test body, but also reduce the difficulty of obtaining regional stress nephogram information.

[0035] To achieve the above object, the fourth aspect of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the above-mentioned regional stress indicating method based on artificially proportioned material.

[0036] The computer readable storage medium of the embodiment of the present application, by executing the above-mentioned regional stress indicating method based on artificially proportioned material, can not only not damage the integrity of the test body, but also reduce the difficulty of obtaining regional stress nephogram information.

[0037] To achieve the above object, the fifth aspect of the present application provides a computer program product, which executes the above-mentioned regional stress indicating method based on artificially proportioned material when the instructions in the computer program product are executed by a processor.

[0038] The computer program product of the embodiment of the present application, by executing the above-mentioned regional stress indicating method based on artificially proportioned material, can not only not damage the integrity of the test body, but also reduce the difficulty of obtaining regional stress nephogram information.

[0039] Additional aspects and advantages of the present application will be made apparent from the following description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0040] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art(s) to make and use the application.

[0041] Figure 1 is a flowchart of the regional stress indicating method based on artificially proportioned material according to the embodiment of the present application;

[0042] Figure 2 is a density-CT number-gray value relationship diagram according to an embodiment of the present application;

[0043] Figure 3 is a clay mass fraction-density diagram according to an embodiment of the present application;

[0044] Figure 4 is a five stress indicator granular material CT gray sectional image diagram according to an embodiment of the present application;

[0045] Figure 5 is a block diagram of a region stress indicator device based on artificial proportioning material according to an embodiment of the present application. DETAILED DESCRIPTION

[0046] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar components have the same or similar designations and functions throughout the various figures and embodiments. The embodiments described below are examples in which the present application is applied to explain the present application, and are not to be construed as limiting the present application.

[0047] The region stress indicator method based on artificial proportioning material, the region stress indicator device based on artificial proportioning material, the electronic device, and the computer readable storage medium provided by the embodiments of the present application are described below in conjunction with the accompanying drawings.

[0048] Figure 1 is a flowchart of a region stress indicator method based on artificial proportioning material according to an embodiment of the present application.

[0049] As shown in Figure 1 , the region stress indicator method based on artificial proportioning material according to an embodiment of the present application includes the following steps:

[0050] S1, controlling a stress detection device to perform stress detection on a test body; wherein the test body is a simulated test body or a coal rock model of type coal in which a plurality of stress indicator granular materials of different artificial proportions are mixed and buried at measuring points.

[0051] According to an embodiment of the present application, the manufacturing process of the stress indicator granular materials of different artificial proportions includes: obtaining quartz sand and clay of different proportions; placing the quartz sand and clay in a granular mold, and adding a binder in the granular mold; applying a set pressing stress to the granular mold to form stress indicator granular materials of corresponding stress intensity.

[0052] According to an embodiment of the present application, the manufacturing process of the stress indicator granular materials of different artificial proportions further includes:

[0053] The stress intensity of the stress indicating particle material with different artificial proportions is calibrated, and the stress indicating particle material is dyed.

[0054] In this embodiment, the proportioning material of the stress indicating particle material is quartz sand, gypsum, sandstone, clay, adhesive (such as epoxy resin) and cement; and the auxiliary material is a pressing machine, a dyeing agent, a curing agent and a micro-particle mold.

[0055] The quartz sand is used as the skeleton of the stress indicating particle material, and the property of the quartz sand greatly affects the overall strength of the material. Different proportions of quartz sand and clay are selected as the main material to manufacture the stress indicating particle material, and the main control variable is the mass of the quartz sand, the clay and the adhesive and the pressing stress.

[0056] The proportioning material is placed in the micro-particle mold, and the pressing machine is used to apply the pressing stress to the micro-particle mold to process the stress indicating particle material into the required size. For example, the stress indicating particle material with six grades of the mass of the clay accounting for 5%, 10%, 15%, 20%, 25% and 30% of the total mass of the quartz sand and the clay.

[0057] The stress indicating particle material with different sizes is labeled with its intensity, and is dyed, and then the stress indicating particle materials with different intensities are embedded in the corresponding measuring points of the test body.

[0058] Of course, in other embodiments of the present application, materials similar to the quartz sand and the clay can also be used to manufacture the stress indicating particle material.

[0059] S2, the cutting device is controlled to cut the test body along the measuring points after the stress detection, to form a cross section containing a plurality of stress indicating particle materials with different artificial proportions.

[0060] The cutting device can be a cutting machine.

[0061] In this embodiment, after the stress is applied to the test body, the cutting device is controlled to cut the test body along the measuring points, to divide the test body into two parts, and each part contains a plurality of stress indicating particle materials with different artificial proportions.

[0062] S3, according to the breaking of each stress indicating particle material in the cross section, a regional stress nephogram is generated.

[0063] According to one embodiment of the present application, the regional stress nephogram is generated according to the cross section, which includes: obtaining an image of the cross section; and generating a regional stress nephogram according to the breaking of each stress indicating particle material in the image.

[0064] The regional stress nephogram is mainly determined by the breaking of stress indicating particle materials of different colors in the dyeing group, for example, the green stress indicating particle material with a strength of 10 MPa is broken, but the red stress indicating particle material with a strength of 15 MPa is not broken, so the regional stress is 10-15 MPa, and the stress distribution of each region in the image is obtained. In this embodiment, the camera can be used to take a picture of any one of the two parts, and then the regional stress nephogram can be generated according to the breaking of the stress indicating particle materials of different colors in the image.

[0065] Therefore, the regional stress indicating method based on artificial proportioning materials can mix and bury a plurality of stress indicating particle materials with different artificial proportions at the measuring points of the test body, and then perform stress testing on the test body, and then cut the test body, and generate a regional stress nephogram according to the breaking of the stress indicating particle materials in the cross section after cutting. Thus, the integrity of the test body is not damaged, and the difficulty of obtaining the regional stress nephogram information is reduced.

[0066] The properties of the stress indicating particle materials are described below.

[0067] The elastic modulus is one of the main mechanical parameters of the rock, and the stress indicating particle materials are studied in combination with the mechanical parameters of the rock.

[0068] The uniaxial compression experiment of the stress indicating particle can obtain the static modulus, and the acoustic wave measurement method of the stress indicating particle can obtain the dynamic modulus. The propagation speed of the acoustic wave in the stress indicating particle materials with different material proportions is different, and the relationship between the dynamic elastic mechanical parameters of the rock and the longitudinal and transverse wave speeds can be derived according to Newton's law of motion and linear elasticity theory as follows:

[0069]

[0070]

[0071] In the formula, E is the elastic modulus (GPa); p is the density of the stress indicating particle material (kg / m 3 ); v s is the transverse wave speed (km / s); v p is the longitudinal wave speed (km / s); and v is the Poisson's ratio.

[0072] The compaction stress of the stress indicating granular material is 40 MPa, and the difference in mechanical properties between different stress indicating granular materials is due to different proportions of quartz sand and clay. In order to obtain the influence of the proportion on the mechanical properties of the stress indicating granular material, the dynamic and static mechanical parameters of six stress indicating granular materials with quartz sand particle size of 100-200 mesh and clay of montmorillonite are measured by using acoustic wave measurement method and uniaxial compression method, and the measurement results are shown in Table 1.

[0073] Table 1

[0074]

[0075] The stress indicating granular materials prepared by different material proportions have different densities, Figure 3 The relationship between the density of the stress indicating granular material and the mass fraction of clay is shown in the table, and it can be obtained that the higher the mass fraction of clay, the greater the density of the stress indicating granular material, and the density and the mass fraction of clay show a linear correlation feature as a whole. According to the proportion of the stress indicating granular material, five stress indicating granular materials with large proportion difference are selected for CT scanning experiment, and part of the parameters are shown in Table 2 (M represents montmorillonite clay, Y represents illite clay, and C represents coarse particle size quartz sand).

[0076] Table 2

[0077]

[0078] Figure 4 The CT scanning images of the cross sections of the five stress indicating granular materials are shown in the table, and the pixel resolution is 27.77 μm. There is no obvious black point in the gray scale image, which indicates that there is no larger defect in the stress indicating granular material. The gray scale distribution histogram is a symmetrical single peak, which indicates that the quartz sand and clay are uniformly mixed in the cross section, and the density of the stress indicating granular material is basically consistent, and the mixture of quartz sand and clay can be regarded as a kind of material. It is indicated that there is almost no difference in the density distribution of different parts of the stress indicating granular material, which fully illustrates the uniformity of the internal structure of the stress indicating granular material.

[0079] The stress indicating granular material of the application is mainly composed of uniformly mixed quartz sand and clay. The experimental measurement shows that the density of the stress indicating granular material is in the range of 1.94-2.33 g / cm3, the porosity is in the range of 4.18-21.07%, the axial compressive strength is in the range of 17.03-34.70 MPa, and the elastic modulus is in the range of 0.597-6.933 GPa.

[0080] In summary, the regional stress indication method based on artificially proportioned materials according to embodiments of the present invention first controls a stress detection device to perform stress detection on a test specimen. This test specimen is a simulated test specimen or coal / rock model in which multiple artificially proportioned stress-indicating granular materials are mixed and embedded at the measuring points. Then, a cutting device is controlled to cut the stress-detected test specimen along the measuring points to form a cross-section containing multiple artificially proportioned stress-indicating granular materials. Subsequently, a regional stress cloud map is generated based on the breakage status of each stress-indicating granular material in the cross-section. Therefore, this method not only does not damage the integrity of the test specimen but also reduces the difficulty of obtaining regional stress cloud map information.

[0081] Figure 5 This is a block diagram of a regional stress indicator device based on artificially proportioned materials according to an embodiment of the present invention.

[0082] like Figure 5 As shown, the regional stress indicator device 500 based on artificially proportioned materials according to an embodiment of the present invention includes: a first control module 510, a second control module 520 and a generation module 530.

[0083] The first control module 510 controls the stress detection device to perform stress detection on the test body; the test body is a simulated test body or coal / rock model in which multiple artificial stress indicator granular materials with different artificial proportions are mixed and embedded at the measuring points. The second control module 520 controls the cutting device to cut the stress-detected test body along the measuring points to form a cross-section containing multiple artificial stress indicator granular materials with different artificial proportions. The generation module 530 generates a regional stress cloud map based on the breakage status of each stress indicator granular material in the cross-section.

[0084] According to one embodiment of the present invention, the process of manufacturing stress-indicating granular materials with different artificial proportions includes: obtaining quartz sand and clay with different proportions; placing the quartz sand and clay in a granular mold and adding a binder to the granular mold; applying a set compressive stress to the granular mold to form stress-indicating granular materials with corresponding stress intensities.

[0085] According to one embodiment of the present invention, the process of producing stress indicator granular materials with different artificial proportions further includes: calibrating the stress intensity of the stress indicator granular materials with different artificial proportions and dyeing them.

[0086] According to one embodiment of the present invention, the generation module 530 includes an acquisition unit and a generation unit. The acquisition unit is used to acquire an image of the cross-section. The generation unit is used to generate a regional stress cloud map based on the breakage condition of each stress-indicating particle material in the image.

[0087] It should be noted that details not disclosed in the artificial proportioning material-based regional stress indicating device of the embodiments of the present application are for reference to the details disclosed in the artificial proportioning material-based regional stress indicating method of the embodiments of the present application, which will not be described here in detail.

[0088] According to the artificial proportioning material-based regional stress indicating device of the embodiments of the present application, the stress detection device is controlled by the first control module to perform stress detection on the test body, the test body is a simulated test body or a coal rock model in which a plurality of stress indicating particle materials with different artificial proportions are mixed and buried at measuring points, the cutting device is controlled by the second control module to cut the test body after stress detection at the measuring points, so as to form a cross section containing a plurality of stress indicating particle materials with different artificial proportions, and the regional stress nephogram is generated by the generating module according to the crushing conditions of each stress indicating particle material in the cross section. Thus, the device not only does not damage the integrity of the test body, but also reduces the difficulty of obtaining the regional stress nephogram information.

[0089] Based on the above embodiments, the present application further provides an electronic device.

[0090] The electronic device provided by the embodiments of the present application comprises a processor and a memory, wherein the processor runs a program corresponding to an executable program code by reading the executable program code stored in the memory, so as to implement the above-mentioned artificial proportioning material-based regional stress indicating method.

[0091] The electronic device of the embodiments of the present application, by executing the above-mentioned artificial proportioning material-based regional stress indicating method, not only does not damage the integrity of the test body, but also reduces the difficulty of obtaining the regional stress nephogram information.

[0092] Based on the above embodiments, the present application further provides a computer readable storage medium.

[0093] The computer readable storage medium of the embodiments of the present application stores a computer program, which, when executed by a processor, implements the above-mentioned artificial proportioning material-based regional stress indicating method.

[0094] The computer readable storage medium of the embodiments of the present application, by executing the above-mentioned artificial proportioning material-based regional stress indicating method, not only does not damage the integrity of the test body, but also reduces the difficulty of obtaining the regional stress nephogram information.

[0095] Based on the above embodiments, the present application further provides a computer program product.

[0096] When the instruction processor in the computer program product of the embodiments of the present application is executed, the above-mentioned artificial proportioning material-based regional stress indicating method is executed.

[0097] The computer program product of the embodiment of the present application, by executing the above-mentioned regional stress indication method based on artificial proportioning material, will not damage the integrity of the test body, and can also reduce the difficulty of obtaining regional stress nephogram information.

[0098] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0099] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0100] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0101] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0102] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0103] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A method for indicating regional stress based on artificially proportioned materials, characterized in that, Includes the following steps: A controlled stress detection device performs stress detection on a test body. The test body is a simulated test body or coal / rock model in which multiple artificially mixed stress-indicating granular materials with different proportions are embedded at the measuring points. Stress-indicating granular materials of different strengths are mixed and embedded in groups at the corresponding measuring points of the test body. The process of preparing the stress-indicating granular materials with different artificial proportions includes: obtaining different proportions of quartz sand and clay; placing the quartz sand and clay in a granular mold and adding a binder to the granular mold; applying a set compressive stress to the granular mold to form stress-indicating granular materials with corresponding stress strengths; calibrating the stress strength of the stress-indicating granular materials with different artificial proportions and then staining them. The control cutting device cuts the test body after stress detection along the measuring point to form a cross section containing multiple stress-indicating granular materials with different artificial proportions; Based on the breakage condition of each stress indicator particle material in the cross section, a regional stress cloud map is generated, wherein the regional stress cloud map is determined by the breakage condition of stress indicator particles of different colors in each stress indicator particle material coloring group.

2. The regional stress indication method based on artificially proportioned materials according to claim 1, characterized in that, The step of generating a regional stress cloud map based on the breakage condition of each stress-indicating particle material in the cross-section includes: Obtain an image of the cross section; Based on the breakage status of each stress-indicating particle material in the image, a regional stress cloud map is generated.

3. A regional stress indication device based on artificially proportioned materials, characterized in that, include: The first control module is used to control the stress detection device to perform stress detection on the test body. The test body is a simulated test body or coal / rock model in which multiple artificially mixed stress-indicating granular materials with different proportions are embedded at the measuring points. Stress-indicating granular materials of different strengths are mixed and embedded in groups at the corresponding measuring points of the test body. The process of producing the stress-indicating granular materials with different artificial proportions includes: obtaining quartz sand and clay in different proportions; placing the quartz sand and clay in a granular mold and adding a binder to the granular mold; applying a set compressive stress to the granular mold to form stress-indicating granular materials with corresponding stress strengths; calibrating the stress strength of the stress-indicating granular materials with different artificial proportions and then staining them. The second control module is used to control the cutting device to cut the test body after stress detection along the measuring point to form a cross section containing multiple stress-indicating granular materials with different artificial proportions. The generation module is used to generate a region cloud map based on the breakage status of each stress indicator particle material in the cross section, wherein the region stress cloud map is determined by the breakage status of stress indicator particles of different colors in each stress indicator particle material coloring group.

4. The regional stress indication device based on artificially proportioned materials according to claim 3, characterized in that, The generation module includes: Acquisition unit, used to acquire an image of the cross section; The generation unit is used to generate a regional stress cloud map based on the breakage condition of each stress-indicating particle material in the image.

5. An electronic device, characterized in that, include: Processor and memory; The processor reads executable program code stored in the memory to run a program corresponding to the executable program code, so as to implement the regional stress indication method based on artificially proportioned materials as described in any one of claims 1-2.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the regional stress indication method based on artificially proportioned materials as described in any one of claims 1-2.

Citation Information

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