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(一)概况我国有色金属矿山,穿孔爆破崩落岩石是生产循环的第一步。如何合理的、经济的决定穿孔爆破参数,使崩落的岩石块度符合生产作业的块度要求,是矿山工作者目前首要任务之一。影响岩石块度的因素较多,有地质方面的,有岩石结构和构造方面的,还有矿石中裂缝和裂隙存在及发育程度、炮孔直径、炮孔排列方式、抵抗线大小、使用炸药种类、爆破方法等等。从这些影响因素中,可归纳
(A) Overview China’s non-ferrous metal mines, perforation blasting rock is the first step in the production cycle. How to determine the parameters of perforation blasting reasonably and economically and make the rock mass of the caving line meet the requirements of block production is one of the most important tasks for mine workers. There are many factors that affect the rock block degree, such as geological, rock structure and structure, and the presence and development of cracks and fissures in the ore, the diameter of the hole, the arrangement of the hole, the size of the line of resistance, the use of explosives , Blasting methods and more. From these factors, can be summarized