Blog
Guides and notes on drilling, blasting and mining — written by our team.
Drilling and blasting: a complete guide to drill & blast
How drilling and blasting works: stages, blast design, borehole drilling, fragmentation, vibration and safety. A practical guide for quarries, mines, tunnels and roads.
What is drilling and blasting (drill & blast)
A plain explanation of drilling and blasting — what it is for and the stages it involves.
The stages of drilling and blasting, from plan to load
A step-by-step look: assess, design, drill, charge, fire and clear.
Drilling blast holes: methods and equipment
Top-hammer and DTH drilling: when each is used and why accuracy matters.
How the charge is calculated in blasting
What the charge weight depends on, and what a powder factor is.
Controlled blasting: reducing vibration and fly-rock
Timing, charge limits and monitoring — how a blast is kept under control.
Drilling and blasting in quarries: what is specific
Why steady fragmentation and a rhythm for the crusher matter in a quarry.
Drilling and blasting in road construction: rock cuts
How rock cuts for roads are made and why profile control matters.
Safety in drilling and blasting
The basics of safety: zones, procedures, control and handling of explosives.