Method, system, equipment and medium for predicting distance between tunneling roadway and coal seam

Abstract

The invention relates to the field of coal mine production, and discloses a method, a system, equipment and a medium for predicting the distance between a tunneling roadway and a coal seam, and the method comprises the steps: obtaining basic parameters of the coal seam and the tunneling roadway; according to the basic parameters, a coal seam pseudo dip angle is obtained; the real-time tunneling length in the roadway direction is obtained; and obtaining the distance between the tunneling roadway and the coal seam according to the basic parameters, the real-time tunneling length and the pseudo dip angle of the coal seam. The distance between the tunneling roadway and the coal seam can be accurately and rapidly predicted, and a geological basis is provided for rapid tunneling of the coal mine pseudo-inclined roadway.

Description

Technical Field

[0001] This invention relates to the field of coal mine production, and in particular to a method, system, equipment and medium for predicting the distance between a tunnel and a coal seam. Background Technology

[0002] During rapid tunneling in coal mines, the tunneling distance changes dynamically. The distance between the tunneling machine and the coal seam is fundamental to ensuring safe production. Determining this distance helps mitigate major risks, prevents accidental exposure of the coal seam, and avoids serious accidents. Due to the complex spatial relationship between various rock roadways and coal seams, inaccurate tunneling distances can lead to premature or delayed exposure of the coal seam, causing major safety accidents such as gas outbursts, coal and gas outbursts, water inrush, and roof falls. Therefore, accurately predicting the distance between the tunneling roadway and the coal seam is crucial to ensure that the roadway approaches the coal seam at the designed safe distance and that sufficient safety coal and rock pillars (such as protective layer thickness) are reserved to avoid coal mine disasters caused by stress concentration or gas leaks.

[0003] However, existing methods for predicting the distance between tunnels and coal seams mostly rely on empirical estimations, which are inaccurate and lead to problems such as "false exposure," "crossing layers," or "excessive rock thickness," requiring frequent exploration, direction adjustments, or even rework. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a method for predicting the distance between a tunnel and a coal seam, which can accurately and quickly predict the distance between the tunnel and the coal seam, providing a geological basis for the rapid excavation of pseudo-inclined tunnels in coal mines.

[0005] The present invention also proposes a system, apparatus and medium having the above-described method for predicting the distance between a tunnel and a coal seam.

[0006] A method for predicting the distance between a tunneling roadway and a coal seam according to a first aspect embodiment of the present invention includes: Obtain basic parameters of the coal seam and tunnel; Based on the aforementioned basic parameters, the pseudo-dip angle of the coal seam is obtained; Obtain the real-time tunneling length along the tunnel direction; The distance between the tunnel and the coal seam is obtained based on the basic parameters, the real-time tunneling length, and the coal seam pseudo-dip angle.

[0007] According to an embodiment of the present invention, a method for predicting the distance between a tunneling roadway and a coal seam has at least the following beneficial effects: The present invention determines the current distance between the tunneling roadway and the coal seam by combining the basic parameters of the coal seam and the tunneling roadway, and the real-time tunneling length along the roadway direction; the basic parameters are all obtained in advance, and in actual excavation, only the real-time tunneling length needs to be obtained to determine the distance between the tunneling roadway and the coal seam, thus accurately and quickly predicting the distance between the tunneling roadway and the coal seam, and providing a geological basis for the rapid excavation of pseudo-inclined roadways in coal mines.

[0008] According to some embodiments of the present invention, the basic parameters include the true dip angle of the coal seam, the angle between the tunnel and the coal seam strike, and the tunneling dip angle of the tunnel.

[0009] According to some embodiments of the present invention, obtaining the pseudo-dip angle of the coal seam based on the basic parameters includes: The tangent of the pseudo-dip angle of the coal seam is obtained by multiplying the tangent of the true dip angle of the coal seam and the cosine of the angle between the tunnel and the coal seam strike. The pseudo dip angle of the coal seam is obtained by taking the tangent of the pseudo dip angle.

[0010] According to some embodiments of the present invention, obtaining the distance between the tunnel and the coal seam based on the basic parameters, the real-time tunneling length, and the coal seam pseudo-dip angle includes: The distance between the tunnel and the coal seam is obtained by dividing the product of the real-time tunneling length, the sine of the angle difference between the pseudo dip angle and the tunneling dip angle, and the cosine of the true dip angle of the coal seam by the cosine of the pseudo dip angle of the coal seam.

[0011] According to some embodiments of the present invention, it further includes: If the tunneling roadway is not excavated from the coal seam, the excavation status of the tunneling roadway is obtained, and the tunneling status is used to determine whether the tunneling roadway is undercut or undercut. Depending on whether the tunnel is undercut or undercut, update the distance between the tunnel and the coal seam.

[0012] According to some embodiments of the present invention, updating the distance between the tunneling roadway and the coal seam based on whether the tunneling roadway is undercut or not includes: If the tunneling roadway is at the bottom, the distance between the tunneling roadway and the coal seam will be updated to the sum of the distance between the tunneling roadway and the coal seam and the preset safe reference distance between the roadway and the coal seam. If the tunneling roadway experiences roof collapse, the distance between the tunneling roadway and the coal seam will be updated to the difference between the distance between the tunneling roadway and the coal seam and the preset safe reference distance between the roadway and the coal seam.

[0013] A system for predicting the distance between a tunneling roadway and a coal seam according to a second aspect of the present invention, for performing a method for predicting the distance between a tunneling roadway and a coal seam according to any one of the first aspects, includes: Data acquisition module, control module; The data acquisition module is connected to the control module and is used to acquire the real-time tunneling length along the tunnel direction and send the real-time tunneling length to the control module. The control module is used to acquire basic parameters of the coal seam and the tunnel; obtain the pseudo dip angle of the coal seam based on the basic parameters; receive the real-time tunneling length sent by the data acquisition module; and obtain the distance between the tunnel and the coal seam based on the basic parameters, the real-time tunneling length, and the pseudo dip angle of the coal seam.

[0014] According to some embodiments of the present invention, the basic parameters include the true dip angle of the coal seam, the angle between the tunnel and the strike of the coal seam, and the tunneling dip angle of the tunnel; The process of obtaining the pseudo-dip angle of the coal seam based on the aforementioned basic parameters includes: The tangent of the pseudo-dip angle of the coal seam is obtained by multiplying the tangent of the true dip angle of the coal seam and the cosine of the angle between the tunnel and the coal seam strike. The pseudo dip angle of the coal seam is obtained by taking the tangent of the pseudo dip angle.

[0015] An electronic device according to a third aspect of the present invention includes: Memory, used to store programs; A processor for executing a program stored in the memory, wherein when the processor executes the program stored in the memory, the processor is configured to perform the method as described in any one of the first aspects.

[0016] According to a fourth aspect of the present invention, a storage medium stores computer-executable instructions for performing the method as described in any one of the first aspects.

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0019] Figure 1 This is a flowchart of a method for predicting the distance between a tunnel and a coal seam, provided in an embodiment of the present invention; Figure 2This is a schematic diagram of a method for predicting the distance between a tunnel and a coal seam, provided in another embodiment of the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] It should be understood that in the description of the embodiments of the present invention, "multiple" (or "amounts") means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] like Figure 1 As shown, this embodiment of the invention provides a method for predicting the distance between a tunneling roadway and a coal seam, including: Step S100: Obtain the basic parameters of the coal seam and the tunnel; Step S200: Obtain the pseudo dip angle of the coal seam based on the basic parameters; Step S300: Obtain the real-time tunneling length along the tunnel direction; Step S400: Based on the basic parameters, real-time tunneling length, and coal seam pseudo-dip angle, obtain the distance between the tunneling roadway and the coal seam.

[0023] This invention determines the current distance between the tunnel and the coal seam by combining the basic parameters of the coal seam and the tunnel, as well as the real-time tunneling length along the tunnel direction. The basic parameters are all obtained in advance, and in actual excavation, only the real-time tunneling length needs to be obtained to determine the distance between the tunnel and the coal seam. This provides a geological basis for the rapid excavation of pseudo-inclined tunnels in coal mines.

[0024] In one embodiment, the basic parameters include the true dip angle of the coal seam, the angle between the tunnel and the strike of the coal seam, and the dipping angle of the tunnel.

[0025] In one embodiment, in step S200, obtaining the pseudo-dip angle of the coal seam based on the basic parameters includes: The tangent of the pseudo-dip angle of the coal seam is obtained by multiplying the tangent of the true dip angle of the coal seam and the cosine of the angle between the tunnel and the strike of the coal seam. The pseudo dip angle of the coal seam is obtained by taking the tangent of the pseudo dip angle.

[0026] like Figure 2 As shown, Figure 2This is a schematic diagram of the application scenario of this method. In the diagram, the red line represents the coal seam, the magenta line represents the projection of the coal seam onto the same plane as the tunneling roadway, and the cyan line represents the tunneling roadway. The tangent of the true dip angle α of the coal seam is obtained by multiplying the cosine of the angle θ between the tunnel and the coal seam strike, as follows: , , , therefore, ; ; like Figure 2 As shown, it is easy to understand that the pseudo dip angle of the coal seam is actually the coal seam projected onto the same plane as the tunneling roadway, and the true dip angle α of the coal seam is not equal to the pseudo dip angle β of the coal seam; the true dip angle of the coal seam refers to the dip angle of the coal seam relative to the horizontal plane.

[0027] In one embodiment, in step S400, the distance between the tunnel and the coal seam is obtained based on the basic parameters, real-time tunneling length, and coal seam pseudo-dip angle, including: The distance between the tunnel and the coal seam is obtained by dividing the product of the real-time tunneling length, the sine of the angle difference between the pseudo dip angle and the tunneling dip angle, and the cosine of the true dip angle of the coal seam by the cosine of the pseudo dip angle of the coal seam.

[0028] Specifically, the expression for the distance d between the tunnel and the coal seam is as follows: , in, For real-time tunneling length, This is the pseudo-dip angle of the coal seam. For the tunneling dip angle, This is the true dip angle of the coal seam; like Figure 2 As shown, take a point A on the intersection line of the planes where the tunnel and the coal seam are located, and draw the distance from the point A to the coal seam, with the foot of the perpendicular at C. The derivation of the expression for the distance d between the tunnel and the coal seam is as follows: , , , After sorting, we can obtain , therefore, .

[0029] This embodiment obtains the distance between the tunnel and the coal seam based on the real-time tunneling length through the projection relationship in three-dimensional space.

[0030] In one embodiment, it further includes: If the tunneling roadway is not excavated from the coal seam, the excavation status of the tunneling roadway is obtained, and the tunneling status is used to determine whether the tunneling roadway is undercut or undercut. Based on whether the tunnel is undercut or undercut, update the distance between the tunnel and the coal seam.

[0031] It should be noted that the opening position when the roadway construction begins is called the coal seam gate.

[0032] In one embodiment, updating the distance between the tunneling roadway and the coal seam, depending on whether the tunneling roadway is undercut or overburdened, includes: If the tunneling roadway is at the bottom, the distance between the tunneling roadway and the coal seam will be updated to the sum of the distance between the tunneling roadway and the coal seam and the preset safe reference distance between the roadway and the coal seam. If the roof of the tunneling roadway is exposed, the distance between the tunneling roadway and the coal seam will be updated to the difference between the distance between the tunneling roadway and the coal seam and the preset safe reference distance between the roadway and the coal seam.

[0033] Specifically, if the tunneling roadway lies at the bottom, the d-value increases as the tunneling roadway is constructed along the working face. The expression for the distance between the tunneling roadway and the coal seam is as follows: d=ds+

[0034] in, For real-time tunneling length, This is the pseudo-dip angle of the coal seam. For the tunneling dip angle, d is the true dip angle of the coal seam, d is the distance between the tunnel and the coal seam, and ds is the safety reference distance; If the roof of the tunnel is lifted during excavation, the value of d-value decreases as the tunnel approaches the working face. The expression for the distance between the tunnel and the coal seam is as follows: d=ds-

[0035] in, For real-time tunneling length, This is the pseudo-dip angle of the coal seam. For the tunneling dip angle, d is the true dip angle of the coal seam, d is the distance between the tunnel and the coal seam, and ds is the safety reference distance. The safety reference distance is the vertical distance from the tunnel reference point (usually the gate position) to the coal seam level, which is determined in advance during the tunnel design stage based on geological exploration data, safety specifications, and engineering technical demonstrations.

[0036] This invention also provides a system for predicting the distance between a tunneling roadway and a coal seam, characterized in that the method for performing the above-mentioned prediction of the distance between the tunneling roadway and the coal seam includes: Data acquisition module, control module; The data acquisition module, connected to the control module, is used to acquire the real-time tunneling length along the tunnel direction and send the real-time tunneling length to the control module. The control module is used to acquire the basic parameters of the coal seam and the tunnel; obtain the pseudo dip angle of the coal seam based on the basic parameters; receive the real-time tunneling length sent by the data acquisition module; and obtain the distance between the tunnel and the coal seam based on the basic parameters, the real-time tunneling length, and the pseudo dip angle of the coal seam.

[0037] In one embodiment, the basic parameters include the true dip angle of the coal seam, the angle between the tunnel and the strike of the coal seam, and the dipping angle of the tunnel. Based on the basic parameters, the pseudo-dip angle of the coal seam is obtained as follows: The tangent of the pseudo-dip angle of the coal seam is obtained by multiplying the tangent of the true dip angle of the coal seam and the cosine of the angle between the tunnel and the strike of the coal seam. The pseudo dip angle of the coal seam is obtained by taking the tangent of the pseudo dip angle.

[0038] This invention also provides an electronic device, which includes, but is not limited to: Memory, used to store programs; The processor is used to execute programs stored in memory. When the processor executes the programs stored in memory, it is used to execute the aforementioned method for predicting the distance between a tunnel and a coal seam.

[0039] The processor and memory can be connected via a bus or other means.

[0040] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs, such as the method described in the embodiments of the present invention. The processor implements the above method by running the non-transitory software program and instructions stored in the memory.

[0041] The memory may include a program storage area and a data storage area, wherein the program storage area may store the operating system and application programs required for at least one function; the data storage area may store data for executing the methods described above. Furthermore, the memory may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory may optionally include memory remotely located relative to the processor, which can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0042] The non-transitory software program and instructions required to implement the above terminal selection method are stored in memory and are executed by one or more processors.

[0043] This invention also provides a storage medium storing computer-executable instructions for performing the above-described methods.

[0044] In one embodiment, the storage medium stores computer-executable instructions that are executed by one or more control processors.

[0045] The embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0046] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically include computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0047] This document describes embodiments of the invention, including preferred embodiments known to the inventors for carrying out the invention. Variations of these embodiments will become apparent to those skilled in the art upon reading the foregoing description. The inventors encourage those skilled in the art to adopt such variations as appropriate, and the inventors intend to practice embodiments of the invention in ways other than those specifically described herein. Therefore, the scope of the invention includes all modifications and equivalents of the subject matter set forth in the appended claims, as permitted by applicable law. Furthermore, the scope of the invention covers any combination of the foregoing elements in all possible variations thereof, unless otherwise indicated herein or otherwise clearly contradicted by the context.

Claims

1. A method for predicting the distance between a tunneling roadway and a coal seam, characterized in that, include: Obtain basic parameters of the coal seam and tunnel; Based on the aforementioned basic parameters, the pseudo-dip angle of the coal seam is obtained; Obtain the real-time excavation length along the tunnel direction; The distance between the tunnel and the coal seam is obtained based on the basic parameters, the real-time tunneling length, and the coal seam pseudo-dip angle.

2. The method for predicting the distance between a tunneling roadway and a coal seam according to claim 1, characterized in that, The basic parameters include the true dip angle of the coal seam, the angle between the tunnel and the coal seam strike, and the tunneling dip angle of the tunnel.

3. The method for predicting the distance between a tunneling roadway and a coal seam according to claim 2, characterized in that, The process of obtaining the pseudo-dip angle of the coal seam based on the aforementioned basic parameters includes: The tangent of the pseudo-dip angle of the coal seam is obtained by multiplying the tangent of the true dip angle of the coal seam and the cosine of the angle between the tunnel and the coal seam strike. The pseudo dip angle of the coal seam is obtained by taking the tangent of the pseudo dip angle.

4. The method for predicting the distance between a tunnel and a coal seam according to claim 2, characterized in that, The process of obtaining the distance between the tunnel and the coal seam based on the basic parameters, the real-time tunneling length, and the coal seam pseudo-dip angle includes: The distance between the tunnel and the coal seam is obtained by dividing the product of the real-time tunneling length, the sine of the angle difference between the pseudo dip angle and the tunneling dip angle, and the cosine of the true dip angle of the coal seam by the cosine of the pseudo dip angle of the coal seam.

5. The method for predicting the distance between a tunneling roadway and a coal seam according to claim 1, characterized in that, Also includes: If the tunneling roadway is not excavated from the coal seam, the excavation status of the tunneling roadway is obtained, and the tunneling status is used to determine whether the tunneling roadway is undercut or undercut. Depending on whether the tunnel is undercut or undercut, update the distance between the tunnel and the coal seam.

6. The method for predicting the distance between a tunneling roadway and a coal seam according to claim 5, characterized in that, The step of updating the distance between the tunneling roadway and the coal seam based on whether the tunneling roadway is undercut or overburdened includes: If the tunneling roadway is at the bottom, the distance between the tunneling roadway and the coal seam will be updated to the sum of the distance between the tunneling roadway and the coal seam and the preset safe reference distance between the roadway and the coal seam. If the tunneling roadway experiences roof collapse, the distance between the tunneling roadway and the coal seam will be updated to the difference between the distance between the tunneling roadway and the coal seam and the preset safe reference distance between the roadway and the coal seam.

7. A system for predicting the distance between a tunnel and a coal seam, characterized in that, For performing the method as described in any one of claims 1 to 6, comprising: Data acquisition module, control module; The data acquisition module is connected to the control module and is used to acquire the real-time tunneling length along the tunnel direction and send the real-time tunneling length to the control module. The control module is used to acquire basic parameters of the coal seam and the tunnel; obtain the pseudo dip angle of the coal seam based on the basic parameters; receive the real-time tunneling length sent by the data acquisition module; and obtain the distance between the tunnel and the coal seam based on the basic parameters, the real-time tunneling length, and the pseudo dip angle of the coal seam.

8. The system for predicting the distance between a tunnel and a coal seam according to claim 7, characterized in that, The basic parameters include the true dip angle of the coal seam, the angle between the tunnel and the strike of the coal seam, and the dipping angle of the tunnel. The process of obtaining the pseudo-dip angle of the coal seam based on the aforementioned basic parameters includes: The tangent of the pseudo-dip angle of the coal seam is obtained by multiplying the tangent of the true dip angle of the coal seam and the cosine of the angle between the tunnel and the coal seam strike. The pseudo dip angle of the coal seam is obtained by taking the tangent of the pseudo dip angle.

9. An electronic device, characterized in that, include: Memory, used to store programs; A processor for executing a program stored in the memory, wherein when the processor executes the program stored in the memory, the processor is configured to perform the method as described in any one of claims 1 to 6.

10. A storage medium, characterized in that, The device stores computer-executable instructions for performing the method as described in any one of claims 1 to 6.

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