Blasting techniques in rock tunnels involve strategically drilling a series of holes into the rock face, which are then filled with explosives. These explosives are detonated in a carefully planned sequence to maximise rock fragmentation and control the shape and size of the tunnel. The flexibility of the drill and blast method in rock tunnels is one of its greatest advantages. It allows for adaptation to varying geological conditions, accommodating changes in rock type, hardness, and structural

9.9K views · 132 reactions | We’re performing drilling and blasting for this project in Idaho to add six miles of highway to US-95. This four-lane segment will be wider, flatter, and straighter, improving safety for all users of this busy interstate. | McCallum Rock Drilling | Facebook

High-risk development blasting — precision and caution are everything when prepping a house pad on this kind of terrain. We’ve got multiple homes nearby and highly-reactive rock. Safety leads every step of the way.💥 | McCallum Rock Drilling

186K views · 2K reactions | Pre-splitting blasting technique is a...