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INFRASTRUCTURE

TBMs drive 83.4km through alpine rock

Two of eight Herrenknecht TBMs, "Ida" and "Lilia", breakthrough on Brenner Base Tunnel project

Duncan Moore
IDA is one of the two Herrenknecht TBMS to have broken through on Brenner Base Tunnel project

IDA is one of the two Herrenknecht TBMS to have broken through on Brenner Base Tunnel project | Credits: Herrenknecht

Eight tunnel boring machines, manufactured by Herrenknecht, have so far excavated approximately 83.4km of tunnel for the Brenner Base Tunnel (BBT) in Austria and Italy. Now two of the machines, named "Lilia"...

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