GCG were commissioned by Canary Wharf Contractors Ltd to assess the impact of the different stages of the construction activities associated with the Newfoundland Development on the LUL tunnels. Finite Element analyses were carried out to assess the impact on the concrete tunnel linings. The tunnels were assessed in terms of distortions, structural forces and longitudinal bending, and an assessment of the track movements was also undertaken. The analyses identified that the excavation to formation level was the most critical stage of the proposed construction.
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