The features parameters selection and ignition plan of rat hole blasting are studied.
研究了斜孔爆破的特点、孔爆破参数的选择及起爆方案。
The linear hole patterns and ignition sequence is adopted on the easier shots patterns of arch tunnel. The arch effection of arch rock ring can be overcome , It is favorable for rock fragmentation.
拱形巷道崩落眼布置采用线形炮眼起爆顺序布置，可克服拱形岩石圈的拱效应，有利于岩石的破碎。
The linear hole patterns and ignition sequence is adopted on the easier shots patterns of arch tunnel. The arch effection of arch rock ring can be overcome , It is favorable for rock fragmentation.
拱形巷道崩落眼布置采用线形炮眼起爆顺序布置，可克服拱形岩石圈的拱效应，有利于岩石的破碎。
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