A fast and accurate monitoring system and monitoring method for surrounding rock deformation of underground roadway

Abstract

The invention discloses a rapid and accurate monitoring system for the deformation of surrounding rock of an underground roadway and a monitoring method of the system. The system comprises a rubber belt, code reference points, non-code reference points, a fixed scale, cameras and a computer; each non-code reference point is composed of a non-code center point, and each code reference point consists of a code center point and annular codes. The monitoring method of the system comprises the steps that S1, the rubber belt is fixed on the section of the roadway, wherein the shape of the rubber belt is identical to that of the section of the roadway; S2, the code reference points and the non-code reference points are inserted in the rubber belt at intervals, and the fixed scale is hung betweentwo code points; S3, the cameras are connected with the computer, and camera lens are aligned with the rubber belt; S4, an automatic photographing mode is adopted for recording the movement process ofthe code reference points and the non-code reference points; S5, collection is completed, and photo information is transmitted to the computer; S6, system measurement software calculates the three-dimensional coordinate changes of the code reference points and the non-code reference points; S7, the deformation of the surrounding rock of the entire roadway is analyzed.

Description

technical field [0001] The invention relates to the technical field of safe construction, prevention and research of roadway surrounding rock deformation in coal mine underground roadways, in particular to a fast and accurate monitoring system and monitoring method for rapidly and accurately measuring the underground roadway surrounding rock deformation. Background technique [0002] Prevention and control of roadway deformation is the premise of safe mining in underground coal mines. The traditional methods for measuring roadway deformation include bolt dynamometer, digital display convergence meter, and theodolite and total station measurement system. However, when measuring the deformation of the roadway, the most important thing is to be fast and accurate. Let the staff know the deformation of the surrounding rock of the underground roadway at all times. Once there is any abnormal situation, they can take targeted measures to ensure the safety of workers. The traditional ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects of the above-mentioned prior art, the present invention provides a fast and accurate monitoring system and monitoring method for the surrounding rock deformation of an underground roadway. The transmission distance is improved, and the conventional bolt dynamometer is inaccurate, the digital display convergence gauge has too many measurement points, the process is too cumbersome, the theodolite measurement speed is slow, the automation is not high, the total station measurement must use prisms or reflectors, and the short distance Low measurement accuracy and difficult to control technical problems. At the same time, the camera’s collection interval can be set artificially, and multiple data can be measured in one roadway section, with a larger amount of information and more accurate data results. System measurement software is installed on the computer to automate Strong, faster data analysis, fast and accurate monitoring of dynamic changes in surrounding rock and supporting structures at each construction stage, grasping the safety status of the structure during construction, judging the stability of surrounding rock, the reliability of supporting, and ensuring construction safety and long-term stability of the structure

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