NFF Statistics: Total meter of tunnels excavated via TBM in Norway
Total meter of tunnels excavated by TBM over the years. (from Norsk Forening for Fjellsprengningsteknikk NFF - Norwegian Association for Rock Blasting Technology)China Railway Tunnel Group TBM breakthrough at Georgia Gudauri Tunnel
China Railway Tunnel Group (CRTG) TBM breakthrough at Georgia Gudauri Tunnel photograph is press release of CRTG https://www.prnewswire.com/news-releases/successful-breakthrough-of-gudauri-tunnel-in-georgias-north-south-corridor-kk-highway-project-302124845.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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