葫芦素煤矿21406回采工作面爆破切顶参数优化设计

Optimal Design of Blasting Top-cutting Parameters in the 21406 Working Face of Hulusu Coal Mine

为防治冲击地压,以21406回采工作面为研究对象,采用深孔爆破断顶卸压的措施,用钻孔窥视技术分析了岩性以及确定最佳布置爆破孔参数,对爆破钻孔间距进行了优化,确定了最优爆破参数,为现场正常安全、高效回采提供了技术支撑。

In order to prevent rock burst, taking the 21406 mining working face as the research object, the measures of roof breaking and pressure relief by deep-hole blasting are adopted, the lithology is analyzed by drilling peep technology, the optimum blasting hole parameters are determined, and the blasting hole spacing is optimized. The optimal blasting parameters are determined, which provides technical support for normal, safe and efficient mining in the field.