Seymour Capilano Twin Tunnel Project, North Vancouver, BC

North Vancouver, BC,
2006 to 2012

During the construction of the Seymour Capilano Twin Tunnels, ECO evaluated the proposed grouting program to stabilize the rock ahead of the TBM and to minimize the infiltration of water into the tunnel during its construction.  ECO provided a number of recommendations to improve the grouting program and trained resident engineers and grouting crews in formulating stable, balanced cement based suspension grouts and in evaluating and conducting a professional grouting program.  ECO acted as a sub-consultant to Hatch Mott McDonald.

Review and design of the remedial grouting work after construction (grouting rehabilitation) was performed to ensure the water tightness and structural integrity of these tunnels.