Kriging interpolation-based rapid division method for outburst danger area of stope face

Abstract

The invention provides a Kriging interpolation-based rapid division method for an outburst danger area of a stope face, which comprises the following steps of: monitoring and preprocessing micro-seismic data, quantifying the micro-seismic monitoring data, performing Kriging interpolation on the quantified micro-seismic monitoring data, and dividing the outburst danger area. According to the method, a micro-seismic monitoring technology is applied to a coal and gas outburst mine; dynamic evaluation based on micro-seismic monitoring data is established by taking a coal and gas outburst mechanism and geostatistics as theoretical basis and taking a GIS technology and a Kriging algorithm as research tools; the following problems are effectively solved: an existing coal and gas outburst prediction method is large in drilling work amount; the interference of human factors is large; furthermore, the production is generally influenced to a certain extent; continuous monitoring cannot be realized in time domain; a point evaluation form is embodied in space domain; and the regional coal rock stress environment and the coal and gas outburst danger dynamic evolution process in the mining disturbance process are difficult to reflect. The danger level visualization of the outburst danger area of the stope face is realized.

Description

technical field [0001] The invention relates to the technical field of safety monitoring and early warning of dynamic disasters in underground coal mines, in particular to a method for rapidly dividing outburst dangerous areas in mining working faces based on Kriging interpolation. Background technique [0002] In recent years, with the increasing depth and intensity of coal mining in my country, the threat of coal and gas outburst disasters has become more and more serious. As one of the most destructive and harmful dynamic disasters in coal mining, coal and gas outbursts have seriously threatened the lives of workers in the coal mining process. Therefore, effective and reasonable prediction of coal and gas outbursts is a guarantee Necessary measures for the normal operation of the mining process. [0003] As a key link in coal and gas outburst prediction, regional prediction is more controllable than other prediction methods in the prediction range. The existing regional...

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Problems solved by technology

[0005] In view of the fact that the existing coal and gas outburst prediction methods have a large amount of drilling engineering, large interference from human factors, and usually affect production to a certain extent, continuous monitoring cannot be achieved in the time domain, and it is difficult to reflect in the form of point evaluation in the airspace. For the technical problems of the regional coal and rock stress environment during the mining disturbance process and the dynamic evolution process of coal and gas outburst danger, the present invention provides a method for quickly dividing the outburst danger area of ​​the mining face based on Kriging interpolation

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