Online monitoring system and monitoring method for surface displacement of coal mine roadway

A technology of surface displacement and coal mine roadway, applied in measuring devices, instruments, optical devices, etc., can solve the problems of inability to measure roadways, inaccurate data analysis, large measurement errors, etc., to reduce measurement costs, high precision, and data recording. immediate effect

Active Publication Date: 2020-01-31
CHINA UNIV OF MINING & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above analysis, the embodiment of the present invention aims to provide an online monitoring system and monitoring method for the surface displacement of coal mine roadway, which is used to solve the problems that the existing roadway surface displacement monitoring method has large measurement error, cannot measure the whole roadway, and the data analysis is inaccurate. question

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  • Online monitoring system and monitoring method for surface displacement of coal mine roadway
  • Online monitoring system and monitoring method for surface displacement of coal mine roadway
  • Online monitoring system and monitoring method for surface displacement of coal mine roadway

Examples

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Embodiment 1

[0043] This embodiment provides a coal mine roadway surface displacement on-line monitoring and early warning system, such as Figure 1 to Figure 5 As shown, it includes a control unit Z1, a processing unit Z2, an analysis unit Z3 and an early warning unit Z4; the control unit includes a traveling mechanism, a rotating mechanism, a laser rangefinder 19, a data memory, a control chip and a data transmission line; the walking structure is used for laser The range finder 19 moves in the roadway, and the rotating mechanism is used to control the laser range finder 19 to rotate 360° along the section of the coal mine roadway; the laser range finder 19 is used to collect roadway surface deformation data; the data memory is used to store roadway surface deformation data , and transmit it to the computer through the data transmission line; the processing unit is used to process the data stored in the data memory; the analysis unit is used to analyze the data of each measuring point.

...

Embodiment 2

[0067] This embodiment provides a coal mine roadway surface displacement online monitoring method, using the coal mine roadway surface displacement online monitoring system provided in Example 1, the monitoring method includes the following steps:

[0068] Step 1, select the target roadway, set up a guide rail at the center line of the roadway roof, and the laser range finder 19 uses the guide rail to move in the roadway; the light emitted by the laser range finder 19 at the center line of the roadway is adjusted to be perpendicular to the center line of the roadway, Set the monitoring parameters in the control unit, determine the rotation angle θ and the moving distance A of the laser range finder 19, measure the data of the measuring points at different times, different angles and different positions and establish a monitoring database, and use the monitoring data in the monitoring database to establish roadways 3D model diagram of the monitoring system;

[0069] Step 2, tur...

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Abstract

The invention, which belongs to the technical field of coal mine roadway safety monitoring methods, relates to an online monitoring system and monitoring method for surface displacement of a coal mineroadway, thereby solving problems of large measuring error, incapability of overall roadway measurement and inaccurate data analysis in the existing roadway surface displacement monitoring method. The online monitoring system comprises a control unit, a processing unit and an analysis unit. The control unit includes a walking mechanism, a rotating mechanism, a laser range finder, a data memory, acontrol chip and a data conduction wire; the walking mechanism is used for moving the laser range finder; the rotating mechanism is used for controlling the laser range finder to rotate at 360 degrees along the fault section of the coal mine roadway; and the laser range finder is used for collecting surface deformation data of a roadway. The processing unit is used for processing monitoring data;and the analysis unit is used for analyzing the data of each measuring point. According to the invention, roadway surface displacement data can be continuously monitored and recorded in real time; and real-time monitoring of non-uniform deformation of an irregular roadway surrounding rock surface is realized.

Description

technical field [0001] The invention relates to the technical field of detection devices for coal mine roadways, in particular to an on-line monitoring system and a monitoring method for the surface displacement of coal mine roadways. Background technique [0002] There are many safety hazards in the process of coal mine excavation, among which the safety of coal mine roadway is one of them. The safety of coal mine roadway directly affects the coal mining work. In the process of coal mining, it is necessary to monitor the safety of the coal mine roadway in real time. Some current monitoring equipment cannot monitor the roadway accurately in real time. [0003] The surface displacement of the roadway is the most basic monitoring content of mine pressure in the roadway, including roof subsidence, floor heave and single side displacement. According to the monitoring results, the relationship curve of displacement and displacement speed with the excavation face and time can be d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02G01B11/16
CPCG01B11/02G01B11/16
Inventor 姚强岭回新冬李学华朱柳夏泽
Owner CHINA UNIV OF MINING & TECH
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