| 
| 
People who like reply on Why are all tunnels not excavated via Tunnel Boring Machines?
Arash zamani on Why are all tunnels not excavated via Tunnel Boring Machines? (): I totally agree, the most important factor is cost. And in low-length tunnels,...
cover tunnel photo by: Matt Brown from London, England / CC BY
.jpg){kind=link}
Copyright 2019-2024 TunnelContact.com