Category:Compressed air tunneling

Media in category "Compressed air tunneling"

The following 3 files are in this category, out of 3 total.

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  Compressed air tunneling shield used for the Hoboken and Manhattan Railroad.png 1,297 × 673; 1.1 MB
  
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  Druckluftschild eingesetzt beim Vortrieb der Hudson and Manhattan Railroad Tunnel zwischen New York City und New Jersey.jpg 1,496 × 836; 179 KB
  
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  Model of a compressed air shield as used for the Pensylvania Railroad Tunnels in NYC area.jpg 1,571 × 960; 161 KB