Research Article

Theoretical Calculation and Experimental Analysis on Initial Shock Pressure of Borehole Wall under Axial Decoupled Charge

Table 9

Comparison of blasting vibration vector synthesis velocity.

Distance from explosive source(cm)10204080

Vector synthesis velocity of blasting vibration in model I(cm/s)20.17599.31946.05293.4562

Vector synthesis velocity of blasting vibration in model II(cm/s)17.33098.08135.15402.9053

Relative decreasing amplitude ratio (%)14.1015.3214.8515.94