People who like Special shaft allows two TBMs cross the paths at Paris metro lines 14 and 15. : TunnelContact.com

People who like Special shaft allows two TBMs cross the paths at Paris metro lines 14 and 15.

Special shaft allows two TBMs cross the paths at Paris metro lines 14 and 15.

By Marc Guitar 1759 days ago in the group Tunnel Building News (tenders, building progress news, etc)

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Thanks to a special structure in a 63-metre wide shaft 55 metres below the Gustave Roussy Institute, the tunnel boring machine 'Allison; boring the line 14 South crossed over the future Line 15. Thanks to this, Allison can...

Dave Anderson liked this 1758 days ago