There are many methods of tunnel construction, each requiring specialist skills and equipment. These include techniques such as bored tunnels using Tunnel Boring Machines (TBMs), sprayed concrete lined tunnels, tunnels constructed by blasting with explosives, and tunnels constructed by pipejacking. This large variety means the tunnelling world and the skills it needs are constantly varied and challenging. #tunnelengineering #artoftunnelling #tunnel #tunnelengineeringisthefuture #tunnel #tunnelli
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There are many methods of tunnel construction, each requiring speci…
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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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182K views · 967 reactions | Caisson sinking and underpinning shaft...
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Modern Construction Process Behind Large Scale Tunnel Projects
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The raise boring method is a precise and efficient technique for constructing shafts in tunneling projects. This method involves drilling a pilot tunnel downward from the surface to the desired depth. Once the pilot hole reaches the target location, a reaming head is attached, and the hole is enlarged as it is pulled back upward, creating a smooth, circular shaft. This technique is highly effective for creating vertical and inclined shafts with minimal disruption and increased safety compared to
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The raise boring method is a precise and efficient technique for constru…
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