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.
出处
《化工矿物与加工》
CAS
1998年第6期19-21,共3页
Industrial Minerals & Processing
关键词
微差爆破
扇形中深孔
无底柱
分段崩落法
采矿
Millisecond blasting,Sublevel stope-caxing system without sill pillar,Fan-shaped medium-lenth hloe.
