【摘要】 文中叙述了利用孔内双面聚能装药进行井壁切割爆破,有效地控制了裂缝的扩展,成功地完成了切割爆破井壁任务.更多还原

【Abstract】 The project of explosive cutting of reinforced concrete shaft wall can be accomplished successfully by using two-face shaped charge in the borehole and the crevices formed can be controlled effectively as well.更多还原