Effect of the Location of the Detonation Initiation Point for Bench Blasting

Table 6

The parameters of blasting effects in different initiation points.

Initiation position	Maximum of damage depth (m)	Minimum of damage depth (m)	Height of rock toe (m)	Relief amplitude (m)	Boulder yield
Bottom	0.62	−0.56	0.56	1.18	6.0%
Middle	0.62	0.42	—	0.20	2.5%
Top	0.69	0.44	—	0.25	9.5%