What does drop shaft mean?
Drop shaft means A vertical shaft which objects can drop through..
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Pronunciation varies by accent · noun
A vertical shaft which objects can drop through..
Melas said that district engineers had located Deep Tunnel dropshafts that were near a portion of the freight tunnels and that they would drill, cut or blast through to the flooded areas "as soon as possible."
The water flows from a large suitably fed tank into the dropshaft through a sharp-edged orifice, whose diameter (Do) is 100mm large.
The downpour led to some dramatic images of stranded motorists and geysers bursting through manhole covers. The spouts are a rare effect which occurs when too much water rushes into a dropshaft and traps air that’s normally vented.
The gigantic drill that began digging the deep-bore tunnel from Ballard to Wallingford in 2021 passed its halfway mark last month, chewing through soil that gets hauled away to a Ballard drop shaft (a vertical hole that reaches down to the tunneling site from street level) in 25-ton train carloads.
Use drop shaft when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Drop shaft means A vertical shaft which objects can drop through..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Melas said that district engineers had located Deep Tunnel dropshafts that were near a portion of the freight tunnels and that they would drill, cut or blast through to the flooded areas "as soon as possible."
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