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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
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