I bet this is an interesting thing to read. Published in October 2019. Costs between US$7 and US$42.
15 km TBM exploratory tunnel excavation in the construction Lot H33 of the Brenner Base Tunnel
15 km TBM Vortrieb im Los Tulfes Pfons – Erfahrungen und Erkenntnistransfer auf das Hauptbaulos
Andrea Lussu Dipl.‐Ing. Sebastian Grüllich Dipl.Ing. Christian Kaiser Ing. Adrian Fontana Dipl.‐In
https://onlinelibrary.wiley.com/doi/pdf/10.1002/geot.201900039
cover tunnel photo by: Matt Brown from London, England / CC BY
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