Experimental Study of Blast-Induced Vibration Characteristics Based on the Delay-Time Errors of Detonator

Table 2

Blasting test parameters.

No.	Parameters	Unit	Value
1	Bench height	m	15
2	Hole diameter	mm	250
3	Inclination of borehole	—	90
4	Depth of blast hole beyond step	m	2.5
5	Hole depth	m	17.5
6	Toe burden	m	6.5
7	Pitch-row	m	8
8	Pitch-array	m	7
9	Specific charge	kg/m^3	0.72
10	Maximum charge of single hole	kg	606
11	Linear meter charge	kg/m	68
12	Stemming length	m	7–8.5