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    • Paolo Kerguel

      Comment on "Comments"

      Indeed Robbins invented the TBM. And then stopped right there. What innovation worth...remendous innovations in slurry technology field and also in big diameter TBM technologies.

      • Ji-Yu Doko

        Comment on "TBM Producers List"

        I added the new company formed on October 1, 2021. OGITEC - Underground Infrastructure Technologies (Japan). It merges TBM busine...

        • Ercan Başar

          Comment on "Discussion replies"

          ...ayı anlar gibi oldum. https://tunnelcontact.com/discussion/view/92...! I read this https://tunnelcontact.com/discussion/view/9242/ba...s in İzmir Narlıdere metro tunnel? It is certain some fiber seller fo...test ground for untested technologies. Lives of Turks as important as lives...

          • 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

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              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?...een damaged by the construction of the underground tunnel. https://www.tagesspiegel....einigung-im-streit-zwischen-bahn-und-bundestag-s21-tunnel-rueck...

                  • 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...weak this and that on a Lovat TBM. But inventing a tunnel borin...

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

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