Description

Blast parameters

Units

Hole diameter

mm

165

Average hole depth

m

12.0

Burden

m

4.5

Spacing

m

4.7

Stemming length

m

3.5

In-hole water level

m

0

Drill pattern

Square

Stemming material

Aggregate

Explosive Type

SD 130

Explosive Mass per hole (kg) @ Density 1.08

196

Charging method

Bottom charge-pumping

Initiation system

Shock tube

Primer

400 g Pentolite Primer