Europe's largest TBM handed over
Herrenknecht has completed the handover of the TBM for the Santa Lucia Tunnel in Italy.
The TBM’s diameter of 15.87m is 250mm more than the previous European record-holder. It is the largest machine ever made at Herrenknecht’s Schwanau plant. The previous record-holder was the Herrenknecht EPB shield for the Galleria Sparvo, with a diameter of 15.62m.
Over the next three years the new 4,800-tonne giant will build a 7,528-metre road tunnel in the Apennines near Florence.
A comprehensive technical acceptance process was completed on Monday and the 410t cutting wheel made its first turn during an official ceremony. The machine was inspected by Herrenknecht’s customer - construction company Pavimental – as well as by representatives of client Autostrade per l'italia and Herrenknecht.
In the near future, 13 Herrenknecht tunnel borers will be operating on Italy’s tunnelling projects, including eight with a diameter of more than 8m. On the A1 new-build route alone, a total of 44 new road tunnels are planned including the Santa Lucia Tunnel. In future the journey time from Bologna to Florence will be reduced by 30% thanks to the new route, which will be opened to traffic in 2019.
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This article was published on 2 Sep 2016 (last updated on 2 Sep 2016).