A method, device and equipment for evaluating the quality of a parallel and equally spaced jointed rock mass

Abstract

The present application discloses a method for evaluating the quality of parallel equally spaced jointed rock masses. The method includes: obtaining the distance between the joint profile line and the joint average line, and the length of the joint profile line; constructing a joint root mean square prediction model based on the distance between the joint profile line and the joint average line and the length of the joint profile line, and obtaining the joint root mean square of all joints according to the joint root mean square prediction model; obtaining the average value of the joint root mean square based on the joint root mean square of all joints; constructing a joint profile line height probability model, and obtaining the core segment length between two adjacent joint profile lines according to the joint profile line height probability model; obtaining the joint average line spacing between two adjacent joint average lines; constructing a parallel equally spaced jointed rock mass quality evaluation model based on the average value of the joint root mean square, the core segment length, and the joint average line spacing, and obtaining a quality evaluation report according to the parallel equally spaced jointed rock mass quality evaluation model.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and particularly to a method, device and equipment for evaluating the quality of parallel equally spaced jointed rock masses. Background Art

[0002] A rock mass is composed of joints and intact rock blocks. Due to the existence of joints, the mechanical and hydraulic properties of the rock mass are very complex. Therefore, it is crucial to comprehensively and quantitatively evaluate the quality of the rock mass during engineering construction. Currently, various engineering rock mass classification (grading) methods can be used to evaluate the quality of the rock mass, such as the RMR, GSI, SRM, Q, BQ, SRMR, RMi and other methods.

[0003] Rock structure is a common term for the block volume of the rock mass, joint density, and rock quality designation (RQD). The rock structure is closely related to the length of the intact core section. The longer the length of the intact core section, the larger the block volume and RQD, and the smaller the joint density may be. As a basic index for most engineering rock mass classification methods, RQD is widely used in aspects such as the evaluation of rock mass mechanical parameters, the estimation of rock mass characteristics, and fault detection.

[0004] However, the existing methods for obtaining RQD do not consider the roughness of the joints, which has certain drawbacks. Joint roughness is a geometric measure of the double-scale undulation of the joint surface relative to its average plane. The large undulation refers to the random fluctuation of the joint surface, and the small undulation refers to the minute fluctuation of the joint surface. It is generally believed that the roughness of the joint surface can be described and reconstructed by fractal methods. Due to the influence of joint roughness, the joint surface is a rough and undulating surface rather than a plane. Therefore, the traditional evaluation methods are not accurate. Summary of the Invention

[0005] This specification provides a method, device and equipment for evaluating the quality of parallel equally spaced jointed rock masses, which is used to solve the problem that the traditional evaluation methods are not accurate.

[0006] In a first aspect, an embodiment of the present application provides a method for evaluating the quality of parallel equally spaced jointed rock masses, the method comprising:

[0007] Obtaining the distance between the joint profile line and the joint average line, and the length of the joint profile line;

[0008] Constructing a joint root mean square prediction model based on the distance between the joint profile line and the joint average line and the length of the joint profile line, and obtaining the joint root mean square of all joints according to the joint root mean square prediction model;

[0009] Obtaining the average value of the joint root mean square according to the joint root mean square of all joints;

[0010] Construct a height probability model of the joint profile line, and obtain the core segment length between two adjacent joint profile lines according to the height probability model of the joint profile line;

[0011] Obtain the joint average line spacing between two adjacent joint average lines;

[0012] Construct a parallel equally spaced joint rock mass quality assessment model according to the joint root mean square average value, the core segment length, and the joint average line spacing, and obtain a quality assessment report according to the parallel equally spaced joint rock mass quality assessment model.

[0013] In a second aspect, an embodiment of the present application further provides a parallel equally spaced joint rock mass quality assessment device, including:

[0014] A data acquisition module for acquiring the distance between the joint profile line and the joint average line and the length of the joint profile line;

[0015] A root mean square advance module for constructing a joint root mean square prediction model according to the distance between the joint profile line and the joint average line and the length of the joint profile line, and obtaining the joint root mean square of all joints according to the joint root mean square prediction model;

[0016] An average value extraction module for obtaining the joint root mean square average value according to the joint root mean square of all joints;

[0017] A core segment length extraction module for constructing a height probability model of the joint profile line, and obtaining the core segment length between two adjacent joint profile lines according to the height probability model of the joint profile line;

[0018] A joint average line spacing extraction module for obtaining the joint average line spacing between two adjacent joint average lines;

[0019] An assessment report generation module for constructing a parallel equally spaced joint rock mass quality assessment model according to the joint root mean square average value, the core segment length, and the joint average line spacing, and obtaining a quality assessment report according to the parallel equally spaced joint rock mass quality assessment model.

[0020] In a third aspect, an embodiment of the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the computer program, the method described in any one of the embodiments is implemented.

[0021] The above at least one technical solution adopted in the embodiments of the present application can achieve the following beneficial effects: Based on a rock mass with parallel and equally spaced joints, the joint profile line is recorded, the influence of joint roughness on RQD is fully considered, a quality assessment model for a rock mass with parallel and equally spaced joints is constructed, and according to the quality assessment model for a rock mass with parallel and equally spaced joints, a quality assessment report is obtained. Based on the geometric feature that the real joint surface is non-planar, it fully considers the influence of joint roughness on RQD and avoids the drawback of defining the joint surface as a smooth plane in the conventional RQD acquisition method, achieving the purpose of effectively improving the accuracy of evaluating the RQD of a single group of equally spaced jointed rock masses. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0023] Figure 1 is a schematic flow chart of a method for evaluating the quality of a rock mass with parallel and equally spaced joints provided by an embodiment of this specification;

[0024] Figure 2 is a schematic diagram of a joint profile line provided by an embodiment of this specification;

[0025] Figure 3 is a schematic diagram of a rectangular coordinate system provided by an embodiment of this specification;

[0026] Figure 4 is a schematic diagram of two adjacent joint profile lines, joints J1 and J2, and the core length between them provided by an embodiment of this specification;

[0027] Figure 5 is a schematic structural diagram of a device for evaluating the quality of a rock mass with parallel and equally spaced joints provided by this embodiment;

[0028] Figure 6 is a schematic diagram of a specific implementation provided by this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0030] The existing methods for obtaining RQD do not consider the roughness of joints, which has certain drawbacks. Joint roughness is a geometric measure of the double - order undulation of the joint surface relative to its average plane. The large undulation refers to the random fluctuation of the joint surface, and the small undulation refers to the tiny fluctuation of the joint surface. Due to the influence of joint roughness, the joint surface is a rough and undulating surface rather than a plane. When measuring the length of the intact core section using the drilling or scan - line method, the sampling points may not be representative; and for the same core section, the measured core section lengths at different measurement points may be different, and thus different RQD values may be obtained. Therefore, the traditional evaluation method is not accurate.

[0031] For this reason, this embodiment provides a method, device, and equipment for evaluating the quality of rock masses with parallel and equally - spaced joints. It can record the joint profile lines based on the rock mass with parallel and equally - spaced joints, fully consider the influence of joint roughness on RQD, construct an evaluation model for the quality of rock masses with parallel and equally - spaced joints, and obtain a quality evaluation report according to the evaluation model for the quality of rock masses with parallel and equally - spaced joints. Based on the geometric feature that the real joint surface is not a plane, it fully considers the influence of joint roughness on RQD, avoids the drawback of defining the joint surface as a smooth plane in the conventional RQD acquisition method, and achieves the purpose of effectively improving the accuracy of evaluating the RQD of single - group equally - spaced joint rock masses.

[0032] The following will detail the technical solutions provided by each embodiment of the present application in conjunction with the accompanying drawings.

[0033] Please refer to Figure 1 as shown in Figure 1 which is a schematic flow chart of a method for evaluating the quality of rock masses with parallel and equally - spaced joints provided by an embodiment of this specification. This embodiment provides a method for evaluating the quality of rock masses with parallel and equally - spaced joints, and the method includes:

[0034] S101. Obtain the distance between the joint profile line and the joint average line, and the length of the joint profile line;

[0035] In specific implementation, the joint profile line can be understood as the line where the cutting plane intersects the joint surface. As Figure 2 shown in Figure 2 which is a schematic diagram of the joint profile line provided by an embodiment of this specification; the length of the joint profile line refers to the length of the profile line in the x - axis (length axis) direction. It is determined according to specific circumstances and is not limited here.

[0036] Among them, the methods for obtaining the distance between the joint profile line and the joint average line include, but are not limited to, the following methods:

[0037] S101a. Obtain the height of points on the joint surface, and obtain the joint average surface according to the height of the points on the joint surface;

[0038] Specifically, the height of points on the joint surface is obtained by, but not limited to, using 3D scanning, and based on the height of points on the joint surface, the average joint surface is obtained.

[0039] S101b. Cut the average joint surface with any cross-section plane perpendicular to the average joint surface to obtain the average joint line.

[0040] Specifically, for example, select one of the joints J1, and cut the rock mass with any vertical plane of the joint J1 as the cross-section plane. The intersection line of the cross-section plane and the average plane of the joint J1 is the average joint line.

[0041] S101c. Construct a rectangular coordinate system with the average joint line and any line perpendicular to the average joint line on the cross-section plane.

[0042] Specifically, for example, take the average joint line of J1 as the x-axis and the height of the joint profile line as the z-axis to establish a two-dimensional rectangular coordinate system, as Figure 3 , Figure 3 is the schematic diagram of the rectangular coordinate system provided in the embodiment of this specification. Record the profile lines of all joints in the rock mass within the coordinate system.

[0043] S101d. According to the rectangular coordinate system, obtain the distance between the joint profile line and the average joint line. The joint profile tangent line refers to the line where the cross-section plane intersects the joint surface.

[0044] Specifically, according to the rectangular coordinate system, obtain the coordinates of points on the joint profile line. Since the average joint line is used as the x-axis, the distance between the joint profile line and the average joint line is obtained.

[0045] It should be understood that the specific content listed above is only for illustrative purposes and should not impose any limitation on this application.

[0046] S103. Construct a joint root mean square prediction model based on the distance between the joint profile line and the average joint line and the length of the joint profile line. According to the joint root mean square prediction model, obtain the joint root mean square of all joints.

[0047] In specific implementation, the joint root mean square can be understood as the root mean square of the joint height. The height of the joint refers to the height value of points on the joint profile line on the z-axis (the axis representing height). The joint root mean square prediction model includes, but is not limited to, the following expression:

[0048]

[0049] where l is the distance between the joint profile line and the average joint line, L is the length of the joint profile line, and R q1 is the joint root mean square.

[0050] For example, Figure 6 For the joint profile line J1 in the parallel equally spaced jointed rock mass shown, the height l of the points on the profile line is extracted at the same sampling interval dx. The length of the J1 joint profile line is 10 m, and the root mean square of the J1 joint height is calculated to be 0.03 m.

[0051] It should be understood that the specific contents listed above are only for illustrative purposes and should not impose any limitation on this application.

[0052] S105. Obtain the average value of the joint root mean square according to the joint root mean squares of all the joints;

[0053] In a specific implementation, the joint root mean squares of all the joints can be understood as the joint root mean squares of the average lines of each joint on the rock mass. The average value of the joint root mean squares is obtained by, but not limited to, using the method of calculating the traditional average value. For example, first obtain the sum value of all the joint root mean squares, and then divide it by the number of all the joint root mean squares to obtain the average value of the joint root mean squares.

[0054] It should be understood that the specific related contents listed above are only for illustrative purposes and should not impose any limitation on this application.

[0055] S107. Construct a probability model for the height of the joint profile line, and obtain the core segment length between two adjacent joint profile lines according to the probability model for the height of the joint profile line;

[0056] In a specific implementation, the method for constructing the probability model for the height of the joint profile line includes, but is not limited to, the following methods:

[0057] Obtain the height of the joint profile line and the height of the joint average line according to the rectangular coordinate system;

[0058] Specifically, the method for obtaining the height of the joint profile line and the height of the joint average line can be understood as obtaining the coordinates of the points on the joint profile line and the coordinates of the joint average line according to the direct coordinate system, so as to obtain the height of the joint profile line and the height of the joint average line.

[0059] Construct a probability model for the height of the joint profile line according to the height of the joint profile line, the height of the joint average line, and the joint root mean square.

[0060] As described above, it can be represented by the following expression:

[0061]

[0062] where f1(z) represents the probability density function of the height of the joint profile line, z represents the height of the joint profile line; μ1 is the height of the joint average line; R q1 is the joint root mean square;

[0063] The above expression can be further expressed as:

[0064]

[0065] obeys a normal distribution.

[0066] For example, Figure 6 in the joint profile line J1 in the shown parallel equally spaced jointed rock mass, the height μ1 of the joint average line is 0, and the root mean square R q1 of the joint height is 0.03 m. The height probability model of the joint profile line J1 is expressed as z1 ~ N(0, 0.03 2 ).

[0067] Among them, according to the joint profile line height probability model, the method for obtaining the core segment length between two adjacent joint profile lines includes, but is not limited to, using the following methods, such as Figure 4 shown Figure 4 is a schematic diagram of two adjacent joint profile lines J1 and J2 and the core length between them provided in the embodiments of this specification. For any two adjacent joints J1 and J2, the heights of the profile lines z1 of joint J1 and z2 of joint J2 respectively obey N(μ1, R q1 2 ) and N(μ2, R q2 2 ). The difference between z1 and z2 is the core segment length between joints J1 and J2. Since the linear combination of normal distribution random variables also obeys a normal distribution, the probability density function of the core segment length between joints J1 and J2 will also obey a normal distribution, expressed as:

[0068] z2 - z1 ~ N(μ2 - μ1, R q1 2 + R q2 2 )

[0069] For example, Figure 6 in the shown, the heights of the profile lines z1 of joint J1 and z2 of joint J2 respectively obey N(0, 0.03 2 ) and N(0.125, 0.03 2 ). Then the probability density function of the core segment length between joints J1 and J2 will obey z2 - z1 ~ N(0.125, 0.03 2 + 0.03 2 ).

[0070] It should be understood that the specific relevant content listed above is only for illustrative purposes and should not impose any limitation on this application.

[0071] S109. Obtain the joint average line spacing between two adjacent joint average lines;

[0072] In specific implementation, since the joints are parallel and equally spaced, the spacing between each pair of joint average lines is equal and is a constant. The constant is not limited here and needs to be determined according to specific circumstances.

[0073] S1011. Construct a parallel equally spaced joint rock mass quality assessment model based on the joint root mean square average value, core segment length, and joint average line spacing, and obtain a quality assessment report according to the parallel equally spaced joint rock mass quality assessment model.

[0074] In specific implementation, the method of constructing a parallel equally spaced joint rock mass quality assessment model based on the joint root mean square average value, core segment length, and joint average line spacing includes, but is not limited to, the following methods:

[0075] S1011a. Construct a core segment length probability model based on the joint root mean square average value, core segment length, and joint average line spacing;

[0076] Specifically, the core segment length probability model includes, but is not limited to, being expressed by the following expression:

[0077]

[0078] where f(r) is the probability density function of the core segment length, r represents the core segment length; μ0 is the joint average line spacing between two adjacent joint average lines; R q is the joint root mean square average value.

[0079] For example, Figure 6 as shown, the joint average line spacing between two adjacent joints J1 and J2 is 0.125 m, the root mean square average value of the joint height is 0.03 m, and the expression of the core segment length probability model is

[0080]

[0081] S1011b. Construct a parallel equally spaced joint rock mass quality assessment model based on the core segment length probability model and the core segment length.

[0082] Specifically, the parallel equally spaced joint rock mass quality assessment model includes, but is not limited to, being expressed by the following expression:

[0083]

[0084] where f(r) is the probability density function of the core segment length, r represents the core segment length.

[0085] For example, Figure 6The shown parallel equally spaced jointed rock mass, according to the expression of the core section length probability model,

[0086]

[0087] the quality index of this parallel equally spaced jointed rock mass is calculated as follows:

[0088]

[0089] It should be understood that the specific relevant content listed above is only for illustrative purposes and should not impose any limitation on this application.

[0090] In this embodiment, based on the rock mass with parallel equally spaced joints, the joint profile line can be recorded, the influence of joint roughness on RQD can be fully considered, a quality assessment model for the parallel equally spaced jointed rock mass can be constructed, and according to the quality assessment model of the parallel equally spaced jointed rock mass, a quality assessment report can be obtained. Based on the geometric feature that the real joint surface is non-planar, it plays a role in fully considering the influence of joint roughness on RQD and avoiding the drawback of defining the joint surface as a smooth plane in the conventional RQD acquisition method, thus achieving the purpose of effectively improving the accuracy of evaluating the RQD of a single group of equally spaced jointed rock mass.

[0091] Furthermore, this embodiment also provides a device for assessing the quality of a parallel equally spaced jointed rock mass. Please refer to Figure 5 as shown in Figure 5 which is a schematic structural diagram of a device for assessing the quality of a parallel equally spaced jointed rock mass provided in this embodiment. The device includes:

[0092] A data acquisition module 201, configured to acquire the distance between the joint profile line and the joint average line and the length of the joint profile line;

[0093] A root mean square advance module 202, configured to construct a joint root mean square prediction model according to the distance between the joint profile line and the joint average line and the length of the joint profile line, and obtain the joint root mean square of all joints according to the joint root mean square prediction model;

[0094] An average value extraction module 203, configured to obtain the average value of the joint root mean square according to the joint root mean square of all joints;

[0095] A core section length extraction module 204, configured to construct a height probability model of the joint profile line and obtain the core section length between two adjacent joint profile lines according to the height probability model of the joint profile line;

[0096] A joint average line spacing extraction module 205, configured to acquire the joint average line spacing between two adjacent joint average lines;

[0097] An evaluation report generation module 206 is configured to construct a parallel equally spaced joint rock mass quality evaluation model based on the root mean square average value of joints, the core segment length, and the average joint spacing, and obtain a quality evaluation report according to the parallel equally spaced joint rock mass quality evaluation model.

[0098] Wherein, the data acquisition module is further configured to acquire the height of points on the joint surface, and obtain the average joint surface according to the height of points on the joint surface. And it is configured to acquire the distance between the joint profile line and the average joint line according to the rectangular coordinate system, where the joint profile tangent line refers to the line where the cutting plane intersects the joint surface.

[0099] The average joint line extraction module is configured to cut the average joint surface with any cutting plane perpendicular to the average joint surface to obtain the average joint line;

[0100] The rectangular coordinate system construction module is configured to construct a rectangular coordinate system with the average joint line and any line perpendicular to the average joint line on the cutting plane.

[0101] The model construction module is configured to construct a core segment length probability model based on the root mean square average value of joints, the core segment length, and the average joint spacing.

[0102] The evaluation report generation module 206 is further configured to construct a parallel equally spaced joint rock mass quality evaluation model based on the core segment length probability model and the core segment length.

[0103] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0104] Therefore, the present application also proposes a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, it implements the method described in any embodiment of the present application.

[0105] Furthermore, the present application also proposes an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, it implements the method described in any embodiment of the present application.

[0106] The present invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each flow and / or block of the flowchart illustrations and / or block diagrams, and combinations of flows and / or blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing apparatus create means for implementing the functions specified in the flowchart flow or flows and / or block or blocks. Figure 1 in a flow or flows and / or block or blocks Figure 1 or blocks.

[0107] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means that implement the functions specified in the flowchart flow or flows and / or block or blocks. Figure 1 in a flow or flows and / or block or blocks Figure 1 or blocks.

[0108] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and / or block or blocks. Figure 1 in a flow or flows and / or block or blocks Figure 1 or blocks.

[0109] In a typical configuration, a computing device includes one or more processors (CPUs), an input / output interface, a network interface, and memory.

[0110] The memory may include non-permanent memory in the form of computer-readable media, random access memory (RAM), and / or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM). The memory is an example of computer-readable media.

[0111] A computer-readable medium includes permanent and non-permanent, removable and non-removable media that can store information by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to store information accessible by a computing device. As defined herein, a computer-readable medium does not include transitory computer-readable media such as modulated data signals and carrier waves.

[0112] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0113] The above description is only for the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A method for evaluating the quality of a parallel and equally spaced jointed rock mass, characterized in that, The method includes: Obtaining the distance between the joint profile line and the joint average line and the length of the joint profile line. The obtaining of the distance between the joint profile line and the joint average line includes: obtaining the height of points on the joint surface, obtaining the joint average surface according to the height of points on the joint surface; cutting the joint average surface with a cutting plane perpendicular to the joint average surface to obtain the joint average line; constructing a rectangular coordinate system with the joint average line and any line perpendicular to the joint average line on the cutting plane; obtaining the distance between the joint profile line and the joint average line according to the rectangular coordinate system, where the joint profile line refers to the line where the cutting plane intersects the joint surface. Constructing a joint root mean square prediction model according to the distance between the joint profile line and the joint average line and the length of the joint profile line, and obtaining the joint root mean square of all joints according to the joint root mean square prediction model. Obtaining the average value of the joint root mean square according to the joint root mean square of all joints. Constructing a joint profile line height probability model, and obtaining the height difference between the profile lines of any two adjacent joints, that is, the core segment length between two adjacent joint profile lines, according to the joint profile line height probability model. The constructing of the joint profile line height probability model includes: obtaining the joint profile line height and the joint average line height according to the rectangular coordinate system; constructing a joint profile line height probability model according to the joint profile line height, the joint average line height and the joint root mean square. Obtaining the distance between adjacent joint average lines. Constructing a parallel equally spaced joint rock mass quality assessment model according to the average value of the joint root mean square, the core segment length and the distance between joint average lines, and obtaining a quality assessment report according to the parallel equally spaced joint rock mass quality assessment model.

2. The method for evaluating the quality of a parallel and equally spaced jointed rock mass according to claim 1, wherein The expression of the joint root mean square prediction model is: where l is the distance between the joint profile line and the joint average line, L is the length of the joint profile line, and R q1 is the root mean square of the joint.

3. The method for evaluating the quality of a parallel and equally spaced jointed rock mass according to claim 1, characterized in that The expression of the joint profile line height probability model is: Among them, f1(z) represents the probability density function of the height of the joint profile line, z represents the height of the joint profile line; μ1 is the height of the joint average line; R q1 is the root mean square of the joint; The above expression can be further expressed as: Subject to a normal distribution.

4. The method for evaluating the quality of a parallel and equally spaced jointed rock mass according to claim 3, characterized in that, The constructing of the parallel equally spaced joint rock mass quality assessment model according to the average value of the joint root mean square, the core segment length and the distance between joint average lines includes: Constructing a core segment length probability model according to the average value of the joint root mean square, the core segment length and the distance between joint average lines. Constructing a parallel equally spaced joint rock mass quality assessment model according to the core segment length probability model and the core segment length.

5. A method for evaluating the quality of a parallel and equally spaced jointed rock mass according to claim 4, characterized in that, The expression of the core segment length probability model is: where f(r) is the probability density function of the core segment length, r represents the core segment length; μ0 is the joint average line spacing between two adjacent joint average lines; R q is the root mean square average of joints.

6. The quality assessment method of a parallel and equally spaced jointed rock mass according to claim 4, characterized in that The expression of the parallel equally spaced joint rock mass quality assessment model is: Where f(r) is the probability density function of the core segment length, and r represents the core segment length.

7. A device for evaluating the quality of a parallel and equally spaced jointed rock mass, characterized in that Including: A data acquisition module, configured to acquire the distance between the joint profile line and the joint average line, and the length of the joint profile line. The acquisition of the distance between the joint profile line and the joint average line includes: acquiring the height of points on the joint surface, and obtaining the joint average surface according to the height of the points on the joint surface; cutting the joint average surface with any cross-section perpendicular to the joint average surface to obtain the joint average line; constructing a rectangular coordinate system with the joint average line and any line perpendicular to the joint average line on the cross-section; and acquiring the distance between the joint profile line and the joint average line according to the rectangular coordinate system, where the joint profile line refers to the line where the cross-section intersects the joint surface. A root mean square extraction module, configured to construct a joint root mean square prediction model according to the distance between the joint profile line and the joint average line and the length of the joint profile line, and obtain the joint root mean square of all joints according to the joint root mean square prediction model. An average value extraction module, configured to obtain the average value of the joint root mean square according to the joint root mean square of all joints. A core section length extraction module, configured to construct a joint profile line height probability model, and obtain the height difference between the profile lines of any two adjacent joints, i.e., the core section length between two adjacent joint profile lines, according to the joint profile line height probability model. The construction of the joint profile line height probability model includes: acquiring the joint profile line height and the joint average line height according to the rectangular coordinate system; and constructing the joint profile line height probability model according to the joint profile line height, the joint average line height, and the joint root mean square. A joint average line spacing extraction module, configured to acquire the joint average line spacing between two adjacent joint average lines. An evaluation report generation module, configured to construct a parallel equally spaced joint rock mass quality evaluation model according to the average value of the joint root mean square, the core section length, and the joint average line spacing, and obtain a quality evaluation report according to the parallel equally spaced joint rock mass quality evaluation model.

8. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, the method described in any one of claims 1-6 is implemented.

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