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  Construction of a station over existing revenue tunnels

  Construction of a cut and cover station structure above two operating tunnels with a cover of 1.0 m presents design and construction challenges. The design has been prepared by considering the locked in forces and the expected displacements; both rigid body and due to ovalization. An elaborate instrumentation system has been laid down to validate the design, as well as to mitigate any condition exceeding the specified values.

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