Abstract: the technique of spiral notching blasting is compare with one of circle blasting from two sides of blasting theory and numerical analysis in this paper.Results indicate that the spiral notching blasting has more advantage than the circle blasting,it can raise blasting area and drop loss energy .

Key words: spiral notcing borehole, blasting theory;numerical analysis

摘要： 笔者在文中从螺旋孔和圆孔爆破的爆破机理、数值模拟等方面对二者进行了对比分析,结果表明,螺旋孔爆破能有效地提高破岩面积,增加能量利用率.

关键词: 螺旋切槽孔, 爆破机理, 数值分析