同排孔间微差爆破在无底柱采矿法中的应用  

Application of Millisecond Blasting between Holes in a Row in a Sublevel Stope-caving System without Sill Pillar

作　　者：李江 

机构地区：[1]西石门铁矿

出　　处：《化工矿物与加工》1998年第6期19-21,共3页Industrial Minerals & Processing

摘　　要：在对无底柱分段崩落法采用的扇形中深孔爆破存在的主要问题分析的基础上，将排间微差爆破改为孔间微差爆破，并介绍了该爆破方法的作用原理、计算方法及应用效果。On the basis of analysis of the main problems existing in blasting with fan-shaped medium-length hole in sublevel stope-caving system without sill pillar,the millisecond blasting between holes in a row is employed instead of the millisecond blasting between rows.Principles,calculation method and application effect are introrduced.

关 键 词：微差爆破 扇形中深孔 无底柱 分段崩落法 采矿 

分 类 号：TD853.362[矿业工程—金属矿开采] TD235.39[矿业工程—矿山开采]