Dagushan's iron mine whose iron ore is in its third fragmentation system is in the construction process, in which the vertical deep-hole blasting technology was adopted to excavate the fragment room.

介绍了大孤山铁矿在矿石三期破碎系统的建设过程中，采用垂直深孔爆破技术挖掘破碎峒室，使挖掘工期大幅度缩短。

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When in underground mine leaching, in order to improve permeability of heap leaching, speed up leaching and improve leaching effectiveness, ore should be blasted to certain fragmentation.

在地下溶浸采矿中，为了改善受浸矿堆的渗透性，加快浸出速度，提高浸出效果，需将矿岩爆破至一定的块度。

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