The engineering team proposed using a mega size precast unit and bored pile walls to cover the tunnel so as to protect the Mass Transit Railway cross-harbour tunnel.
The engineering team proposed using a mega size precast unit and bored pile walls to cover the tunnel so as to protect the Mass Transit Railway cross-harbour tunnel.
The engineering team proposed using a mega size precast unit and bored pile walls to cover the tunnel so as to protect the Mass Transit Railway cross-harbour tunnel.
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