The notch blasting mechanism is expounded by the fracture mechanics principle, the cutting tool parameters for notch presplitting blasting is put forward.
利用断裂力学原理阐明了切槽爆破机理,提出了切槽预裂爆破的刀具参数,依据现场初步试验成果指出了下一步应改进的切槽刀具参数。
Compared with the conventional presplitting methods, the shaped charge is obviously more effective in presplitting blasting and especially useful in controlling the presplitting slots.
聚能预裂爆破与普通预裂爆破相比,爆破效果明显提高,能有效地控制预裂缝的扩展。
The selection of parameters in smooth and presplitting blasting plays an important role in blast effect. It is an important part in project design of smooth and presplitting blasting.
爆破参数的选择直接影响着爆破效果,是光面、预裂爆破工程设计的重要内容。