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| 空炮; 废炮 | |||
| 空炮炮孔爆破时，爆炸气体从孔口和贯通裂缝中喷出,或部分炸药被抛出孔外在空中爆炸的现象称为空炮; 无效爆破指掘进时遇到特硬岩后,爆破后没有或很少有进尺的现象。爆破时，因延时雷管跳段或其他原因使爆破效果不理想者，亦称无效爆破 | |||
| 乏弹; 乏丸 | |||
| 闷炮眼 | |||
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