Rock burst calamity infrared thermal image early warning identification method

Abstract

The invention belongs to the field of mine safety and relates to a rock burst calamity infrared thermal image early warning identification method. The method is characterized in that monitoring areas are determined around a target rock and are numbered, an infrared thermal image monitoring system is installed, real-time monitoring is performed, then an average rock temperature-stress-time curve map is drafted, average rock temperature and stress change conditions are analyzed, and rock burst calamity early warning is identified. The method is simple in construction, good in effect and quite high in reliability and accuracy, reduces the possibility of rock burst calamity false alarm and missed alarm, greatly improves the accuracy and the sensitivity of the rock burst calamity early warning, can improve the construction safety environment and prevents personnel and equipment loss. The method is mainly applied to rock burst power calamity early warning when a mine rock generates rupture instability, and realizes a more remarkable effect especially when an engineering rock is a hard rock.

Description

technical field [0001] The invention belongs to the field of mine safety, and relates to a method for identifying key points of early warning of rockburst disasters by using an infrared thermal image monitoring system, which is suitable for early warning of rockburst disasters such as deep hard rock mining and tunnel excavation. [0002] technical background [0003] In recent years, in areas such as mining and tunneling, extractive activity has expanded to great depths, making dynamic hazards such as rockbursts more likely than ever. The insufficiency of the existing rockburst monitoring and early warning equipment and technical means has become increasingly prominent. The infrared thermal image warning of rockburst disasters monitors the stress and surface temperature changes when the rock breaks, and deduces the infrared radiation precursors when the rock is unstable and damaged, so as to realize the detection of rockbursts. Disaster monitoring and early warning. [0004]...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of insufficient early warning methods and poor early warning effects of rock bursts in mines, the present invention proposes a method for early warning recognition of rock burst disasters by infrared thermal images. The method uses infrared thermal imaging equipment to monitor the surface temperature of target rock mass in real time and The new method of combining the stress changes of the target rock mass during the loading process can realize real-time and accurate early warning of engineering rock mass rockburst. It is not only easy to operate, but also can greatly improve the accuracy and sensitivity of rockburst early warning.

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