远程下保护层开采工作面瓦斯涌出量预测研究

分析了分源法预测保护层工作面瓦斯涌出量理论和保护层开采时上覆煤岩层采动裂隙的分布。采用分源法预测了张集矿1117(1)保护层工作面瓦斯涌出量,预测误差为6.6%,满足现场安全生产要求,为治理保护层工作面瓦斯提供了可靠依据。

Studying about Forecasts Long-range Protective Layer Mining Face Gas Gushing Amounts

This paper analysed different-source method forecast protective layer face gas gushing amounts theory and when mining protective layer the overlying strata distributing.We adopt different-source method forecast gas gushing amounts in Zhangji Coal Mine 1117(1) protective layers face,prediction error is 6.6%,which satisfied scene safety and has provided reliable basis for governing protective layer face.