Assembled in Schwanau in just a few months, with a diameter of 15.87 meters the tunnel boring machine for the Santa Lucia road tunnel is an impressive sight. In the next three years the 4,800 tonne drilling giant will build a 7,528 meter tunnel in the Apennines near Florence – and takes over from the existing record holder for size, which was also used in Italy (EPB shield for the Galleria Sparvo, diameter 15.62 meters). 

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