本煤层增效抽采聚能被筒深孔爆破技术研究

Deep Hole Blasting Technology Research of Synergistic Extraction Cavity Sleeve on Coal Seam

由深孔内部爆破原理分析可知,普通爆破产生的爆炸能量没有方向性,因此会破碎煤层顶底板,并且爆炸产生的压碎圈能降低能量的有效利用率。利用聚能爆破先进原理,对切槽开缝、切缝药包和聚能被筒对比分析,确定PVC聚能管结构和技术参数,通过现场应用,效果明显。

Analysis shows that deep hole internal blasting principle, ordinary blasting explosion energy - directional, thus crushing the coal seam, and the explosion crushed circle to reduce the effective utilization of energy. Using shaped blasting advanced principle slotted grooving, cutting seam cartridge and polyethylene can be barrel comparative analysis, to determine PVC polyethylene pipe structure and technical parameters, through on- site applications ,the effect is obvious.