General information
CT deBoer got instructed to place a traffic tunnel at its definitive position underneath a railway track that was still in use. The tunnel got pushed to its position, using 22 jacks with a capacity of 680 tons each.
Coulsdon (London), tunnel under Smitham Station
Involved parties:
Client: Transport for London
General contractor: Hochtief UK
Numbers/technique used:
– Tunnel mass: 8.500 tons (biggest in tunnel ever pushed in place)
– Pushing distance: 45 meter
– Hydraulic capacity: 15.000 tons