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Current Refinements
  Content Type Features
  Date 2013
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Largest segments
06 March, 2013
The largest operational EP BM in the world is currently excavating the south bore of the Sparvo highway tunnel project in Italy. The outstanding size of the 15.615m Herrenknecht machine and complex geology has required 700mm thick segments with a high level of steel bar reinforcement. This paper is written by Maurizio Pepino, Gianluca Comin and Alfonso Di Cara of main contractor Toto Costruzioni Generali