The practice has shown that the initiation delay time is an important factor affecting cut blasting effect.
工程实践表明，微差起爆时间是影响掏槽效果的一个重要因素。
Experimental results show that the cut blasting effect of bottom charge is better than that of conventional charge.
试验结果表明，底部空气柱装药掏槽爆破效果优于常规装药效果。
The pretreatment measures, shape and size of blasting cut, blasting parameters, detonation networks, safety technology measures and blasting effect are discussed.
着重介绍了预处理措施、爆破切口形状与尺寸、爆破参数、起爆网路、安全技术措施及爆破效果等。
It is found that the staged cut with duplex-square has the best blasting effect in trial shafts sinking. This experimental result is analyzed with the existing achievements of rock dynamics.
结果表明：复式正方形分层分段掏槽在试验井筒中有最佳的爆破效果，并应用现有岩石动力学的成果分析了这一试验结果的原因。
Abstract: the application of cut blasting of the middle of the stope in Ekou iron mine was introduced, a set of practical blasting parameters were achieved and good blasting effect was obtained.
文摘：介绍了采场中部掏槽爆破在峨口铁矿的应用，并得出了一组切合实际的爆破参数，取得了较好的爆破效果。
Test shows that the blasting effect of cylinder cut of ms blasting in borehole is better than that of cylinder cut.
试验结果表明，孔内微差分段掏槽优于筒形掏糟。
Test shows that the blasting effect of cylinder cut of ms blasting in borehole is better than that of cylinder cut.
试验结果表明，孔内微差分段掏槽优于筒形掏糟。
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