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Freezing method used for excavation by Webuild at Brenner Base Tunnel Isarco River Underpass
Freezing method used for excavation by Webuild at Brenner Base Tunnel Isarco River Underpass
https://www.webuildgroup.com/en/media/press-notes/webuild-eisack-underpass-work-completed/
cover tunnel photo by: Matt Brown from London, England / CC BY
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