【摘要】 以爆炸理论和断裂力学为基础,探讨了切槽爆破中切槽的导向作用机理,阐明了切槽爆破中初始裂纹生成的定位性及其扩展的定向性,以及切槽中分面上裂纹优先扩展等保证破裂面得以精确控制的断裂特征。更多还原

【Abstract】 Based on the blasting theory and "Fracture Mechanics " , the directing effect mechanism of V-netch in V-rotching blasting is studied and the positive splitting and directional explanding of crack within V-notching blasting and the priority of crack’s expanding in the V-notch axle-plane etc are expounded. It’s just these fracture characteristics mentioned above that ensure the fine control of the cracking plane.更多还原