List of products by author: T. Sandell

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  Rondout West Branch Bypass Tunnel

  Abstract: A single shield hard rock TBM is set to bore in New York State where it will encounter water inflows with high volume and pressures up to 20 bar. To overcome these difficult conditions, the TBM is designed to control 2500 gpm (9500 l/min) water inflows and seal against 30 bar (20 bar with a 1.5 safety factor). The TBM will bore a tunnel to replace part of the Delaware Aqueduct, which supplies...

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