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针对寺河煤矿东井区23071巷和33112巷连采机掘进工作面的瓦斯涌出规律,采用分源法进行了研究。结果表明,掘进面瓦斯涌出量随着掘进进尺的增加而增大,煤壁瓦斯涌出所占工作面瓦斯涌出的比例也是逐渐增加的。从统计数据可知,连采机掘进工作面的瓦斯涌出总量中,落煤瓦斯涌出占16.2%~34.5%,煤壁瓦斯涌出占65.5%~83.8%,为西井区和东井区接替盘区巷道掘进时的瓦斯治理提供了理论依据。
Aiming at the gas emission regularity of 23071 alley and 33112 alluvion in Dongjing District of Sihe coal mine, the sub-source method was used to study the gas emission. The results show that the gas emission from the heading face increases with the progress of excavation, and the proportion of gas emission from the coal seam gas discharge increases gradually. According to the statistics, among the total amount of gas emission from mining face, the gas emission from Luohu Mine accounts for 16.2% -34.5% and the methane emission from coal wall accounts for 65.5% -83.8% It provides a theoretical basis to replace the gas control during the tunneling of the panel roadway.