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TTC North Tunnel - Ontario


Project Details:
Pultrall supplied V•ROD GFRP (glass fiber-reinforced polymer) was used in caisson cages in a “soft eye” tunneling application in the North Tunnels portion of the TTC $2.6 billion subway expansion project. V•ROD GFRP reinforcement was used in this specific tunneling application, where TBMs can bore through soft-eye areas of caisson reinforcement cages. Highest grade 60GPa 32m vertical bars were used with #5 (16m) 50GPa continuous spirals with 150mm pitch and inside 16m circular ties at 600mm. V•ROD GFRP rebar was used to reinforce up to 19m long GFRP cages (diametres of 600920mm).

See the ''Project Report''
  • TTC North Tunnel 1
  • TTC North Tunnel 2
  • TTC North Tunnel 3