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炮孔填塞长度是露天深孔爆破的重要参数之一,其值的大小直接影响爆破效果。传统观点认为填塞长度应不小于最小抵抗线,但实践证明,这是偏大的。为了寻求合理的填塞长度,人们总结了实践经验并做了专门的试验研究。T.N.纳贡等人,从安全角度出发,为了减少岩块的飞散,建议填塞长度为孔径的20～25倍。苏联B.B.波杜纳科夫等人,从爆炸能量利用的观点出发,研究了填塞对长柱药包作用的影
Blast hole length is one of the important parameters of open-hole deep-hole blasting, the value of which directly affects the blasting effect. The traditional view that the length of filling should not be less than the minimum resistance line, but practice has proved that it is too large. In order to find a reasonable packing length, people summed up the practical experience and made a special experimental study. T.N. Nagorn and others, from a safety point of view, in order to reduce the rock scattered, it is recommended packing length of 20 to 25 times the aperture. Soviet Union B.B.Bodunakov and others, from the point of view of the use of explosive energy, studied the effect of packing on the effect of long column kits