【摘要】 介绍了光面爆破技术原理、优点、炮眼的种类、技术要求以及炮眼布置的基本要求,从而阐述了光面爆破技术在岩巷掘进时对巷道成形的重要性。更多还原

【Abstract】 Have introduced smooth surface to blow smooth surface up porthole, technical requirement as well as the kind of technical principle,advantage and porthole the basic requirement that arranged,so elaborate to blow up technology in rock alley driving the importance for that tunnel becomes shape.更多还原