论文部分内容阅读
在介质中每个药包的爆破作用半径主要取决于药包的药量、炸药的威力和岩石的性质等。在试验中,若爆破在自由面不受限制的条件下进行,则在工作面可形成标准爆破漏斗;在薄矿脉窄幅采场自由面受限制条件下,由于爆破时爆破漏斗底宽在自由面以外部分的发育受到极大的夹制作用,所以在工作面形成不了标准爆破漏斗,而只能形成萎缩的爆破漏斗。
The radius of the blasting effect of each pack in the medium depends mainly on the dose of the pack, the power of the explosive and the nature of the rock. In the experiment, if the blasting is carried out under the condition that the free surface is not restricted, a standard blasting funnel can be formed on the working face. Under the condition that the free surface of the narrow-width stope in thin veins is restricted, since the bottom width of the blasting funnel at the time of blasting is free The development of parts outside of the plane is greatly affected by the clamping, so the standard blasting funnel can not be formed on the working face, but only a shrinking blasting funnel can be formed.