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22径向间隙效应
简称间隙效应。因炮孔直径大于药卷〈包〉直径形成的间隙,炸药爆轰时产生的冲击波使柱状装药压死、传爆中断的现象。在实际的爆破工程中,在药卷和炮孔内壁之间留有空隙,来自起爆一端的爆轰波在炸药中传播的同时,也在空隙中传播着冲击波,当后者的速度高于前者时,孔底方向的炸药尚未被引爆便受到了超前空气冲击波的预压而变得钝感,最后发生拒爆。这种效应称作沟槽效应,也称空隙效应或管道效应
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