The drill and blast method is a widely used technique in mining operations, particularly in hard rock mining. This process involves two key components: drilling holes into the rock formation and subsequently blasting the rock to facilitate its fragmentation. Drill patterns are meticulously designed to optimise the blasting process, considering factors like rock type, size, and desired fragmentation. The drilling phase utilises specialised equipment to bore holes into the rock, where explosives a

1.2K views · 43 reactions | 101 4.5” holes at 60-65’ deep made for a beautiful blast at this quarry job. We used 32,150 lbs of Anfo for a powder factor of 1.26 | McCallum Rock Drilling | Facebook

84K views · 158 reactions | Kaboom! Watch 20,000 tonnes of rock explode in under a second  | BBC Scotland | Facebook