大孔径聚能预裂爆破技术在某铁矿爆破中的应用

Application of large aperture cumulative presplitting blasting technology in mine

对大孔径聚能预裂爆破技术与工艺进行研究,旨在寻求一种炸药能量利用率高、预裂成缝效果明显、应用方便的新型爆破技术。自主研发了大孔径双线性聚能不耦合炸药装药间隔器,并应用于某铁矿工业性试验,试验结果表明,这种新型的爆破技术在大型露天矿山靠帮爆破中可以取得良好的爆破效果和综合效益。

Based on technology and process research about of the large aperture cumulative presplitting blast-ing, a new blasting technique with high utilization rate of explosive energy, obvious sewing effect and easyuse is found. A large aperture bilinear decoupling cumulative charging explosive spacer is applied to the indus-trial test in one iron mine. The result shows that this new type of blasting technology has a good blasting effectand comprehensive benefits.