A Study of Millisecond Blasting on High Bench at Barun Iron Ore Operation

Table 1

Simulation parameters of millisecond blasting in the hole.

	B-section delay time	3 ms				5 ms				7 ms
Parameters of millisecond blasting	B & D combined detonation	1	2	3	4	5	6	7	8	9	10	11	12
		D top & B bottom		D top & B top	D bottom & B bottom	D top & B top	D top & B bottom	D bottom & B top	D bottom & B bottom	D top & B top	D top & B bottom	D bottom & B top	D bottom & B bottom
	D-section detonation location	0	0	0	0	0	0	0	0	0	0	0	0
		0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
		1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
		1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5