Prediction of Bench Blasting Vibration on Slope and Safety Threshold of Blasting Vibration Velocity to Undercrossing Tunnel

Table 6

Prediction formulas of PPV on the slope surface.

Category	Formula form	PPV prediction equation	Correlation coefficient	Formula form	PPV prediction equation	Correlation coefficient
x	Equation (2a)		0.959	Equation (2b)		0.956
y			0.611			0.502
z			0.909			0.898
PVS			0.924			0.915
x	Equation (2c)		0.954	Equation (2d)		0.962
y			0.538			0.515
z			0.899			0.904
PVS			0.917			0.923
x	Equation (2e)		0.956	Equation (10)		0.965
y			0.502			0.666
z			0.898			0.931
PVS			0.915			0.953

The following conclusions can be obtained from the results shown in Table 6.