摘要
为提高岩石巷道的爆破效果和掘进速度,针对岩巷掘进中爆破自由面少,提出预掏槽的概念,阐述了预掏槽的破岩机理,对岩巷预掏槽做了可行性分析,以斜眼深孔楔形掏槽形式对预掏槽进行了设计。
In order to improve the exploration effect and advance rate of stone drifts, focusing on the concept that the free face of explosion in stone drifts advance is little, the paper puts forward the pre cutting concept, describes the rock breaking mechanism of pre cutting, and makes feasibility analysis of pre cutting of stone drifts. It also design for the inclined deep hoe wedge--shape cutting, and conducts ten times cycling tests for light explosion in stone drifts.
出处
《矿业工程》
CAS
2015年第4期57-59,共3页
Mining Engineering
关键词
岩巷
预掏槽
斜眼深孔楔形掏槽
空气间隔装药
光爆
stone drift
pre cutting
inclined deep hole wedge--shape cutting
air--separated charging
light explosion
