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Jubilee Line Extension - London

We were sub-contracted to build the shafts and the tunnels by the main contractor - Aoki/Soletanche JV - for Contract 105 on the Jubilee Line Extension Project. The project consisted of the following elements.

  • 5 km - 4400mm diameter running tunnels using 4 No. Kawasaki EPB TBM's
  • 2 No hand excavated 140 metre long  station tunnels constructed in compressed air of 7m diameter cast iron segments.
  • The sinking of 6 No. shafts of both diaphragm and segmental construction all approx. 14m diameter at 30 metre deep.




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