Re:Tunnel Boring Machines (2018)
by alexhutcheson on Monday November 18, 2019 @10:45AM
(#21565163)
> 4. Are there any reason why we dont use TBM for small pipes, ( like for electricity or fibre optics, )
Cut-and-cover[1] construction is an order of magnitude cheaper. You don't need TBMs unless you're going really deep, or there are things on the surface that are really expensive or disruptive to work around.
Cut-and-cover[1] construction is an order of magnitude cheaper. You don't need TBMs unless you're going really deep, or there are things on the surface that are really expensive or disruptive to work around.
[1] https://en.wikipedia.org/wiki/Tunnel#Cut-and-cover