深井煤层复合顶板控制技术

CONTROL TECHNOLOGY OF COMPOSITE ROOF IN DEEP WELL COAL BED

摘要: 通过对近距离二层煤复合顶板上行开采可行性分析论证及试验,彻底改变了二层煤巷道状况和工作面顶板面貌,为复合顶板煤层的开采探索一条行之有效途径。

Abstract: The feasibility study and test on mining of composite roof two layers of coal changes thoroughly the status of two-layer coal drift and roof of working face,and offers an effective way for the mining of composite roof coal bed.