17K views · 194 reactions | The drill and blast method is a widely...
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17K views · 194 reactions | The drill and blast method is a widely...
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The drill and blast method can be used for constructing shafts in rock, similar to its use in tunnelling. In both cases, explosives are placed in drilled holes to fracture the rock, allowing for excavation. However, in shaft construction, the drilled holes are oriented vertically downward, whereas in tunneling, they are drilled horizontally. Despite this difference in drilling direction, the underlying principle remains the same: controlled blasting breaks the rock into manageable pieces for rem
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The drill and blast method can be used for constructing shafts in ro…
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EQ Resources October Blasting Mining Sequence
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Mining Doc Mining Doc on Instagram: "What are the key considerations in designing a blasting sequence and delay timing? Blasting sequence is the planned order in which explosive charges in a blast are detonated, while delay timing is the specific interval of time between sequential detonations. Together, they are critical for achieving finer rock fragmentation, controlling rock displacement, and minimizing ground vibrations by allowing seismic waves from each explosion to interfere constructivel
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Mining Doc Mining Doc on Instagram: "What are the key cons…
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