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预裂爆破是利用相邻炮孔内炸药爆轰时瞬间产生的应力和爆生高压气体的气楔作用,使得岩石沿相邻炮孔的轴线形成一条裂缝,从而在以后的开挖中形成一个平整和稳定的面。
Presplitting blasting is the use of the instantaneous explosion of explosives in adjacent blast holes generated gas pressure and explosive gas pressure of the wedge effect, making the rock along the axis of the adjacent blasthole to form a crack in the subsequent excavation to form a Flat and stable surface.