本文对凿岩技术中的炮孔直径、深度、钻凿方法以及炮孔的布置进行对比和评价。炮孔直径是决定在具体条件下能否采用凿岩技术主要数据之一。在采用大量采矿法时,炮孔直径的变化很大 This paper compares and evaluates the hole diameter, depth, drilling method and the arrangement of the hole in the rock drilling technology. Drill hole diameter is one of the main data that determines whether drilling technology can be used under specific conditions. When using a large number of mining method, the hole diameter changes greatly