Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect

Table 1

Measurement point blasting vibration monitoring data.

Data	Dose (kg)	Number	Distance		Velocity (cm/s)	Data	Dose (kg)	Number	Distance		Velocity (cm/s)
			Level	Vertical					Level	Vertical
Oct 15th	255.81	1	126	-36.4	0.986	Oct 16th	255.81	1	65	-1.7	19.624
		2	172	-36.4	1.061			2	83	-1.7	16.696
		3	182	-62.3	0.927			3	100	-22.7	2.906
		4	193	-62.3	1.107			4	117.7	-22.7	4.163
		5	252	-72.4	0.458			5	141.4	-45	1.108
		6	316	-72.4	0.266			6	168.6	-45	1.114
								7	195	-45	0.96