List of products by author: G. Colzani

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  Tailskin Brushes replacement under difficult ground conditions - Three R ivers

  Abstract: As part of the 3RPORT Project, an 8 km tunnel is being excavated underneath the three rivers of Fort Wayne using a 5.8 m diameter Slurry Tunnel Boring Machine. The groundwater pressure at the tunnel axis ranges from 4.5 to 5.3 bar. The rock mass hydraulic conductivity is very high with water inflows up to 630 l/s imposing significant challenges to the project. After excavating 470 m of the TBM...

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