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    • Roberto Calvi

      Comment on "item:object:river_object"

      This explains what happened at Genoa's Bertè tunnel Italy's Tunnels violate the European Union Directive 2004/54 for Safety of Tunnels https://tunnelcontact.com/discussion/view/10093/italys-tunnels-violate-the-european-union-directive-200454-for-safety-of-tunnels

      • Matt J. Scott

        Comment on "CANCELLED - NAT2020 North American Tunneling Conference (Nashville - Tennessee)"

        ...hat NAT 2020 has been canceled. It is with the safety of all involved, coupled with...he core values of the UCA of SME is health and safety, so it is even more critical...ars, eBooks and papers, including access to OneTunnel.org, at ucaofsmenet.org. We r...

        • Gianluca Gallota

          Comment on "item:object:river_object"

          Tunnel Widening Case *****   #Palmieri Tunnel Widening Machines in operation - #Montedomini Tunnel https://www.youtube.com/watch?v=vGrXSAIAfBE #Italia  

          • Steve McMillan

            Comment on "Discussion replies"

            Hi Lutz. You are confusing CityRailLink with the CentralInterceptor project. The former is 12 meter transport tunnel whereas the latter is a 5.45m waste water tunnel. In any case, knowing your preferences, you will be glad to hear that it is 2-0 for Herrenknecht.

            • Kris Lubcek

              Comment on "item:object:river_object"

              More opposition to Stonehenge tunnel... https://www.salisburyjournal.co.uk/news/18181487.stonehenge-alliance-calls-a303-tunnel-scrapped-open-letter-government/

              • Lutz Genscher

                Comment on "item:object:river_object"

                Looking back the Cologne tunnel sinking, can you blame the Bundestag administrators?...been damaged by the construction of the underground tunnel. https://www.tagesspiegel..../einigung-im-streit-zwischen-bahn-und-bundestag-s21-tunnel...

                • Alan Limbach

                  Comment on "item:object:river_object"

                  Donnie the Tunnel Boring Machine, behind some people. https://www.trenchlessinternational.com/2019/12/17/boring-begins-on-coxwell-bypass-tunnel/ #Coxwell

                  • M. Demir

                    Comment on "item:object:river_object"

                    Newspapers say train cars split into 2 before they pass through Marmaray tunnel in İstanbul. Marmaray is an immersed tunnel. They did not want whole train cause weight risk.

                    • Dave Anderson

                      Comment on "Discussion replies"

                      This prufrock thing pure vaporware. Elon Musk has no experience in mechanical engineering yet alone in tunnel boring machines. You may hire...tweak this and that on a Lovat TBM. But inventing a tunnel...

                      • Carlos Kirschner

                        Comment on "item:object:river_object"

                        Berlin S21 Tunnel Construction: According to the Berliner Morgenpost, the Deutsche Bahn...sche Bahn the opportunity to pursue the underground tunnel project. https://www.morge.../bezirke/mitte/article228045031/Loesung-fuer-S-Bahn-Tunnel...

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                      cover tunnel photo by: Matt Brown from London, England / CC BY

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