Forecast of coal and gas outburst based on time series of gas concentration
DENG Ming
ZHANG Guo-shu
CHEN Qing-hua
Abstract：By studying the time series of gas emission concentration before coal and gas outburst, the stock market theory was proposed to forecast coal and gas outburst.Based on the data of "5·20" coal and gas outburst of Sihe Coal Mine in Jincheng, the K line charts for time series of gas emission concentration, named as G series in short, were drawn. The results indicate that the K line is acted as little K line or cross line with little variance at normal production periods. Before outburst,the K line has an ascending trend, its bodies become large, and "three-positive line" fre-quently appears,which exhibits pulse signals. The research results can be selected as the precursors to forecast coal and gas outburst.
Keywords：coal and gas outburstforecastgas emission concentrationstock technical analysisK line chart
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 260-263 )