肥田煤矿合理采掘部署调整

Reasonable Mining Deployment Adjustment of Feitian Coal Mine

针对肥田煤矿一分区首采层瓦斯治理难度大,掘进困难,区域防突措施不合理等问题,通过对开采层序及区域防突措施的合理论证,将首采层由原来的6#煤层调整为16#煤层,开采程序调整为"组间上行、组内下行"的方式,首采层的掘进工作面采取穿层钻孔预抽煤巷条带煤层瓦斯、采煤工作面采取顺层钻孔预抽采面条带煤层瓦斯的区域防突措施,经过调整,采掘部署趋向合理。

For the difficult gas governance and excavation and unreasonable regional outburst prevention measures in a partition area of Feitian Coal Mine, through rational argumentation of mining sequence and regional outburst prevention measures, the first layer is changed to 16# coal seam from the original 6# coal seam; mining sequence is adjusted for “uplink within groups and downlink in groups ” way. The heading face in the first mining layer used the through beds hole to predrainage strip coal seam gas ; the mining face used bedding drilling to predrainage strip coal seam gas. After the adjustment, the extractive deployment tends to be reasonable.