16_上煤层半煤岩巷掘进中深孔爆破参数设计

Parameter design of deep hole blasting in coal roadway driving in 16 upper coal seam

随着采煤工作面机械化程度的不断提高,薄煤层开采矿井采掘接替日益紧张,而半煤岩巷掘进装备发展较慢,目前薄煤层矿井主要采用钻爆法掘进半煤岩巷。通过对山东里能里彦煤矿16上煤层东翼集中回风下山中深孔爆破方案设计及现场试验,确定采用垂直双楔形掏槽加后爆中心眼的布设方式,装药结构为反向装药,能够达到预期效果。

With the increasing mechanization of coal mining face in thin seam coal mining, increasingly strained replace of thin coal seam mining, and the slow development of equipment in roadway in semi and coal rock coal, currently the drilling and blasting method is used in semi and coal rock coal in thin coal seam and rock roadway excavation. By deep - hole blasting design and field testing in east wing set on 16uper return down the mountain of Shandong Liyan coal mine, it determines to use the laying with vertical dual - wedge - shaped cutting and laying of the ground zero after eye way, the charging structure is reverse charging, it can achieve the desired effect.