Mine dynamic disaster integrated early warning method and device

Abstract

The invention discloses an integrated early warning method and device for mine dynamic disasters, and relates to the technical field of prediction and evaluation of coal mine mining dynamic disasters.The integrated early warning method comprises the steps that a corresponding stability function is established through a stress signal in a mine shaft, a ground sound signal, an electric field signal, a temperature signal and a gas signal, and a pre-stored stress signal reference value, a ground sound signal reference value, an electric field signal reference value, a temperature signal referencevalue and a gas signal reference value, and an error function is established according to the stability function and a theoretical value of the stability function; and a constraint equation set is established to the error function, alpha i (n) and beta i (n) which make the error at the present moment to be the minimum are solved to the constraint equation set according to a Monte Caro algorithm,namely, the alpha i (n) and the beta i (n) which make the error at the current moment to be the minimum are solved through the steps and the stability function value at the current moment can be estimated, and the safety in the mine shaft at the moment can be judged out by using the difference value between the stability function value and the theoretical value of the stability function, so that dynamically evaluating of the safety in the mine shaft is achieved.

Description

technical field [0001] The invention relates to the field of prediction and evaluation of coal mining dynamic disasters, and more specifically relates to an integrated early warning method and device for mine dynamic disasters. Background technique [0002] Coal and gas outburst and rock burst are the most serious dynamic disasters encountered in coal mine production. When coal and gas outburst occurs, the underground coal body throws a large amount of coal and gas into the roadway or stope; when rock burst occurs, the underground roadway or mining face is destroyed rapidly, and the damage time is only a few seconds to ten seconds , the damage range can reach hundreds of meters, and the projected coal can reach tens of thousands of tons. As of the end of 2012, there were 1,141 coal and gas outburst mines and 142 rock burst mines in my country. With the increase of energy demand and mining intensity in my country, most mines in China will enter the deep mining stage in the n...

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Problems solved by technology

[0005] The embodiment of the present invention provides an integrated early warning method and device for mine dynamic disasters, which are used to solve the problem of inability to dynamically evaluate the safety performance in the mine in real time in the prior art, resulting in low early warning accuracy

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