Gigantic TBM for Italy
Feb 08, 2011
The world's largest earth pressure balance shield was successfully accepted by the customer.
With an excavation diameter of 15.62 meters and an overall length of 130 meters, this record-breaking machine was assembled at the Herrenknecht headquarters in Schwanau (southern Germany) over a period of three months, where it has also been commissioned and tested extensively. To celebrate acceptance, the customer »Toto Costruzioni Generali S.p.A.« invited top-ranking representatives of all the companies involved in the project to Schwanau yesterday where the machine was presented and its functions explained.
As the time schedule for construction of the Sparvo Tunnel is tight, the dismantling phase will commence shortly following successful acceptance by the customer. In January 2011, the first individual components have been shipped to Italy enabling final assembly to commence on site in February. The giant TBM is to start tunnelling the first tube near Florence in a northerly direction in May 2011 with plans for the new route to open by the end of 2013.
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