System and method for predicting coal and gas outburst risk of mine in real time

Abstract

The invention provides a system and a method for predicting the coal and gas outburst risk of a mine in real time, which relate to a system and a method for judging mine natural disaster of coal and gas outburst risk degree through combination of artificial intelligence and expert analysis. The system uses a microseismic signal for reflecting the ground stress intensity and the gas outburst quantity for reflecting the gas change as analysis parameters to be combined with the expert experience, and can improve the predicting accuracy of the coal and gas outburst risk to high than 90 percent. The system and the method are characterized in that the system mainly consists of a data collection module, a data transmission module, a real-time data tracking and analysis center and an integrated early warning module, wherein after the data collection module collects underground data, the data is transmitted to the real-time data tracking and analysis center through the data transmission modulefor calculation, analysis and reasoning, and the integrated early warning module gives the early warning when a reasoning result shows that the risk occurs. The invention is applicable to similar mines with the coal and gas outburst risk.

Description

technical field [0001] The invention relates to a system and method for predicting mine coal and gas outburst accidents. Background technique [0002] Coal and gas outburst is an extremely complex dynamic phenomenon. Its formation process is: when coal is mined in mines with coal and gas outbursts, due to the influence of human mining, the system composed of ground stress, gas, coal and rock environment is destroyed, and the inherent mechanical balance is lost. A certain dynamic effect. The in-situ stress first destroys the coal body, causing cracks in the coal body, and then the coal body releases and accumulates high-pressure gas into the cracks, which promotes the continuous development of coal body cracks. In a short period of time, a large amount of gas and crushed coal are suddenly ejected from the coal body to the roadway or stope. The sprayed pulverized coal and gas can fill hundreds of meters of tunnels, causing coal flow to bury people and fill the tunnels, suff...

AI Technical Summary

Problems solved by technology

However, decades of coal and gas outburst prediction and prediction research results show that: (1) Different mines have different critical index values, and it is very difficult to determine a critical index that can adapt to each outburst mine; The same mine and the same coal seam have different criteria for outburst hazards at different mining depths and different areas; ③ In recent years, there have also been cases where the prediction indicators do not exceed the standard, but in actual mining practice, there are also outburst hazards. ④ It is impossible to equip and popularize professional experts who can predict and analyze coal and gas outburst in many coal mines

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