Blast Design

What the Driller Should Report to the Blaster

What the Driller Should Report to the Blaster Why Drilling Data is Critical for Successful Blasting Operations In surface mining and quarrying, the drilling phase is much more than simply…

Part 3. Flyrock Risk Thinking for Blasters: Observation, Confinement, Exposure

Part 3. Flyrock Risk Thinking for Blasters: Observation, Confinement, Exposure A Safe, Teaching Framework for Modern Blasting Practice by PEG Associates After catching up with old friends and fellow blasters…

PART 2. Designing Sand Covers for Blast Flyrock Control: Practical Engineering Guidelines

PART 2. Designing Sand Covers for Blast Flyrock Control: Practical Engineering Guidelines Sand cover can be estimated from the upward energy trying to eject rock, but the cardinal rule is…

Using Sand Instead of Blasting Mats: How to Calculate Required Weight and Apply It Safely

Part 1. Using Sand Instead of Blasting Mats: How to Calculate the Required Weight and Apply It Safely By Petr Explosives Group (PEG) “If flyrock occurs, the blast design has…

Part 1. Flyrock Control: Main Rules, Energy Management, and Surface Protection in Blasting Operations

Part 1. Flyrock Control: Main Rules, Energy Management, and Surface Protection in Blasting Operations Petr Explosives Group (PEG) “Blasting mats are NOT protection — good blast design is.” In a…

What Determines How Heavy the Blasting Mats Must Be?

What Determines How Heavy the Blasting Mats Must Be? A Practical Guide from Petr Explosives Group – PEG Style Now that you know how many mats you need for coverage…