The drill and blast method in tunnelling involves drilling a series of holes in a precise pattern, then filling them with explosives to break and remove rock. The design of the drill and blast pattern is crucial, as it determines the effectiveness and safety of the operation. It factors in rock type, tunnel size, and desired fragmentation. Proper sequencing and timing of blasts are essential to minimise vibration, control overbreak, and maintain the tunnel's structural integrity. Follow us at tu
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The drill and blast method holds a pivotal role in mineral extraction from the ground, serving as a cornerstone for industrial development. This technique involves drilling holes into the ground and then strategically placing explosives to break apart the rock, allowing for the retrieval of valuable minerals. Its significance lies in its efficiency and versatility, enabling access to mineral deposits that would otherwise remain inaccessible. We have covered drill and blast method in tunnelling a
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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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