HS2 Cutterhead of TBM Anne from the Victoria Road Crossover Box
HS2 Cutterhead of TBM Anne from the Victoria Road Crossover Box_cropped from High Speed 2 project media: https://mediacentre.hs2.org.uk/news/the-northolt-four-new-tunnelling-machine-joins-three-others-digging-high-speed-line-under-londonWebuild construction sites in Sicily with 8 ongoing projects
Webuild construction sites in Sicilia with 8 ongoing projects https://www.webuildgroup.com/en/media/press-notes/salini-Webuild-work-sicily-200-km-railway-track-tunnels-tbm/ ItaliaChina 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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