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自从1963年兰吉弗斯提出减小抵抗线增大炮孔间距可有效地改善露天矿台阶爆破的破岩质量以来,大孔距爆破技术已逐渐被各国采矿工作者接受并推广。近几年来,大孔距爆破技术也已在我国一些露天矿山得到了运用并取得了显著的经济效益。
Since 1963, Langjisi proposed to reduce the resistance line to increase the spacing between blast holes can effectively improve the open-pit mine bench blasting broken rock quality since the large-hole blasting technology has gradually been accepted and promoted by mining workers in various countries. In recent years, large-hole blasting technology has also been used in some open-pit mines in China and achieved significant economic benefits.