摘要
泉店煤矿二_1与二_3煤层松软且煤层间距小,煤层中间岩层平均厚度为8m,采用联合布置方式,对二_1与二_3煤的首采工作面进行同时开采,实现了安全回采,提高煤炭回收率,取得了较好的经济效益与社会效益。
According to Ⅱ1 and Ⅱ 3 soft coal seams and the close distance, about 8 meters, between Ⅱ1 and Ⅱ3 coal seams in Quandian Coal Mine, Ⅱ1 and Ⅱ 3 combined mining technology was used to mine primary face of Ⅱ1 and Ⅱ3 seam simultaneously. It achieved safety mining, and the recovery rate of coal was improved. The economic and social benefits were satisfactory.
出处
《中国矿山工程》
2013年第3期38-41,共4页
China Mine Engineering
关键词
近距离煤层
联合开采
实践
contiguous coal seam
combined mining
practice
