New record for Sparvo TBM

12/04/2012

The 15.62 m-diameter EPB Martina, built by Herrenknecht for the 2.5 km-long twin-tube Sparvo tunnel on Italy’s Variante di Valico project, has achieved a 1,110 m advance since launch in August, 2011. It is currently averaging 16 m/day, with a high of 22 m/day. Toto is manufacturing the 17 t concrete segmental lining rings. For more click here, here and it/21. Visit www.totospa.it. 15/12.

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