CN-122020780-A - Method, system, equipment and medium for predicting distance between tunneling roadway and coal seam

CN122020780ACN 122020780 ACN122020780 ACN 122020780ACN-122020780-A

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, wherein the method comprises the steps of obtaining basic parameters of the coal seam and the tunneling roadway; the method comprises the steps of obtaining a coal seam pseudo-dip angle according to basic parameters, obtaining real-time tunneling length along the tunnel direction, and obtaining the distance between a tunneling tunnel and a coal seam according to the basic parameters, the real-time tunneling length and the coal seam pseudo-dip angle. The method can accurately and rapidly predict the distance between the tunneling roadway and the coal seam, and provides geological basis for rapid tunneling of the pseudo-inclined roadway of the coal mine.

Inventors

FENG QINGYUAN
LIU XIANGYANG
HAO JINRONG
XU AIJUN
ZHAO WEI
Wang Kua
YAN HAO

Assignees

神华神东电力有限责任公司
神华地质勘查有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260106

Claims (10)

1. A method of predicting the distance between a tunnelling roadway and a coal seam, comprising: basic parameters of a coal bed and a tunneling roadway are obtained; Obtaining a pseudo dip angle of the coal bed according to the basic parameters; acquiring real-time tunneling length along the roadway direction; 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.
2. The method for predicting the distance between a tunneling roadway and a coal seam according to claim 1, wherein the basic parameters comprise the true dip angle of the coal seam, the included angle between the tunneling roadway and the trend of the coal seam, and the tunneling dip angle of the tunneling roadway.
3. The method for predicting the distance between a tunneling roadway and a coal seam according to claim 2, wherein obtaining a pseudo dip angle of the coal seam according to the basic parameters comprises: The tangent of the true dip angle of the coal bed and the cosine of the included angle between the tunneling roadway and the trend of the coal bed are multiplied to obtain the tangent of the pseudo dip angle of the coal bed; And obtaining the pseudo dip angle of the coal bed according to the tangent of the pseudo dip angle of the coal bed.
4. The method for predicting the distance between a tunneling roadway and a coal seam according to claim 2, wherein obtaining the distance between the tunneling roadway and the coal seam according to the basic parameters, the real-time tunneling length and the pseudo-inclination angle of the coal seam comprises: and dividing the product of the real-time tunneling length, the sine of the angle difference between the coal bed pseudo-dip angle and the tunneling dip angle and the cosine of the coal bed true dip angle by the cosine of the coal bed pseudo-dip angle to obtain the distance between the tunneling roadway and the coal bed.
5. A method of predicting the distance of a tunnelling roadway from a coal seam as claimed in claim 1, further comprising: If the tunneling tunnel is not tunneling from the coal seam pulling gate, acquiring the tunneling condition of the tunneling tunnel, and determining whether the tunneling tunnel is a top or a bottom according to the tunneling condition; and according to the fact that the tunneling roadway is a top or a bottom, updating the distance between the tunneling roadway and the coal seam.
6. The method of predicting the distance between a tunnelling roadway and a coal seam of claim 5, wherein updating the distance between the tunnelling roadway and the coal seam according to whether the tunnelling roadway is a roof or a floor comprises: if the tunneling roadway is in the bedrock, updating the distance between the tunneling roadway and the coal seam to be the sum of the distance between the tunneling roadway and the coal seam and the preset safety reference distance between the roadway and the coal seam; if the tunneling roadway is lifted, the distance between the tunneling roadway and the coal seam is updated to be the difference between the distance between the tunneling roadway and the coal seam and the preset safety reference distance between the roadway and the coal seam.
7. A system for predicting the distance of a tunnelling roadway from a coal seam, for performing a method as claimed in any one of claims 1 to 6, comprising: The system comprises a data acquisition module and a control module; the data acquisition module is connected with the control module and used for acquiring the real-time tunneling length along the roadway direction and sending the real-time tunneling length to the control module; The control module is used for acquiring basic parameters of the coal bed and the tunneling tunnel, obtaining a pseudo-dip angle of the coal bed according to the basic parameters, receiving the real-time tunneling length sent by the data acquisition module, and obtaining the distance between the tunneling tunnel and the coal bed according to the basic parameters, the real-time tunneling length and the pseudo-dip angle of the coal bed.
8. The system for predicting the distance between a tunneling roadway and a coal seam according to claim 7, wherein the basic parameters comprise the true dip angle of the coal seam, the included angle between the tunneling roadway and the trend of the coal seam, and the tunneling dip angle of the tunneling roadway; the step of obtaining the pseudo dip angle of the coal seam according to the basic parameters comprises the following steps: The tangent of the true dip angle of the coal bed and the cosine of the included angle between the tunneling roadway and the trend of the coal bed are multiplied to obtain the tangent of the pseudo dip angle of the coal bed; And obtaining the pseudo dip angle of the coal bed according to the tangent of the pseudo dip angle of the coal bed.
9. An electronic device, comprising: A memory for storing a program; A processor for executing the memory-stored program, which processor is adapted to perform the method of any one of claims 1 to 6 when the processor executes the memory-stored program.
10. A storage medium having stored thereon computer-executable instructions, the computer-executable instructions are for performing the method of any one of claims 1 to 6.

Description

Method, system, equipment and medium for predicting distance between tunneling roadway and coal seam Technical Field The invention relates to the field of coal mine production, in particular to a method, a system, equipment and a medium for predicting the distance between a tunneling roadway and a coal seam. Background In the process of tunneling, the distance between the tunneling machine and the coal bed is the basis for guaranteeing safe production, and the distance between the tunneling machine and the coal bed is determined, so that the serious risk can be avoided, the coal bed is prevented from being uncovered by mistake, and serious disaster accidents are avoided. Because the spatial relationship between various rock tunnels and the coal seam is complex, if the tunneling distance is inaccurate, the tunnels can be advanced or retarded to reveal the coal seam, and serious safety accidents such as gas outburst, coal and gas outburst, water penetration, roof fall and the like are caused. Therefore, it is particularly important to accurately predict the distance between the tunneling roadway and the coal seam, ensure that the roadway approaches the coal seam according to the requirement of the designed safe distance, reserve enough safe coal and rock pillars (such as the thickness of a protective layer), and avoid coal mine disaster accidents caused by stress concentration or gas leakage. However, the existing method for predicting the distance between the tunneling roadway and the coal seam mostly utilizes empirical estimation, and the prediction result is inaccurate, so that the problems of 'mistaken uncovering', 'penetrating a layer' or 'leaving too thick rock' and the like occur, and frequent exploratory mining, direction adjustment and even reworking are required. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a method for predicting the distance between the tunneling roadway and the coal seam, which can accurately and rapidly predict the distance between the tunneling roadway and the coal seam and provide geological basis for rapid tunneling of the pseudo-inclined roadway of the coal mine. The invention also provides a system, equipment and medium with the method for predicting the distance between the tunneling roadway and the coal seam. According to an embodiment of the first aspect of the invention, a method for predicting the distance between a tunneling roadway and a coal seam comprises the following steps: basic parameters of a coal bed and a tunneling roadway are obtained; Obtaining a pseudo dip angle of the coal bed according to the basic parameters; acquiring real-time tunneling length along the roadway direction; 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 method for predicting the distance between the tunneling tunnel and the coal seam has the advantages that the current distance between the tunneling tunnel and the coal seam is determined by combining the basic parameters of the coal seam and the tunneling tunnel and the real-time tunneling length along the tunnel direction, the basic parameters are obtained in advance, the distance between the tunneling tunnel and the coal seam can be determined only by obtaining the real-time tunneling length in actual excavation, the distance between the tunneling tunnel and the coal seam is accurately and rapidly predicted, and geological basis is provided for rapid tunneling of the pseudo-inclined tunnel of the coal mine. According to some embodiments of the invention, the basic parameters include a true dip angle of the coal seam, an included angle between a tunneling roadway and a coal seam trend, and a tunneling dip angle of the tunneling roadway. According to some embodiments of the invention, the obtaining the pseudo dip angle of the coal seam according to the basic parameter includes: The tangent of the true dip angle of the coal bed and the cosine of the included angle between the tunneling roadway and the trend of the coal bed are multiplied to obtain the tangent of the pseudo dip angle of the coal bed; And obtaining the pseudo dip angle of the coal bed according to the tangent of the pseudo dip angle of the coal bed. According to some embodiments of the invention, the obtaining the distance between the tunneling roadway and the coal seam according to the basic parameter, the real-time tunneling length and the pseudo-dip angle of the coal seam includes: and dividing the product of the real-time tunneling length, the sine of the angle difference between the coal bed pseudo-dip angle and the tunneling dip angle and the cosine of the coal bed true dip angle by the cosine of the coal bed pseudo-dip angle to obtain the distance between the tunneling roadway and the coal bed. According to some e