文章对炮眼深度、掏槽爆破、光面爆破、定向爆破等技术问题进行了探讨。
The technology problems of blasthole depth, cutting blasting, smooth wall blasting, and directional blasting is discussed.
以槽腔体积、槽腔深度和爆破块度为指标，对底部空气柱装药和常规装药掏槽爆破进行了模拟试验。
With the index of cut hole's volume, depth and blasting fragmentation in the thesis, the simulated tests have been carried out upon cut blasting of bottom air column and conventional charge.
掏槽方法使用期间，可通过对掏槽的高度、炮眼的深度及装药量的多少等因素的调整，来达到有控制地释放瓦斯的目的。
In the period of cutting method using, may achieve to control gas emission by adjusting the factors of cutting height, and depth and charge of artillery eye.
掏槽方法使用期间，可通过对掏槽的高度、炮眼的深度及装药量的多少等因素的调整，来达到有控制地释放瓦斯的目的。
In the period of cutting method using, may achieve to control gas emission by adjusting the factors of cutting height, and depth and charge of artillery eye.
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