V-shaped notch blasting is that cutting slots with certain depth along axis -direction of the hole is determined according to the blast-crazing, and then load uncoupled charge and detonation.

In the period of cutting method using, may achieve to control gas emission by adjusting the factors of cutting height, and depth and charge of artillery eye.

Explosive with high density and high velocity can greatly increase the explosion energy and improve the effect of rock materials cutting by shaped charge .