Tata Projects Ltd and Lucknow Metro Rail Corporation (LMRC) have announced that they have completed Lucknow Secretariat to Hazratganj underground Tunnel Boring Project in the most seamless, disruption-free manner and in the fastest time period. LMRC and Tata Projects achieved the completion of the tunnel of 812 meters within 5 months (excluding 1½ months of waiting period to confirm breakthrough dates) of its commencement under the EPC (Engineering, Procurement, Construction) project. The 75-meter long TBM (Tunnel Boring Machine) - 'Gomti' saw the light at the end of tunnel and came out in the open (breakthrough) near Sahu Cinema at Hazratganj.

The state-of-the-art on-board computerised tunnel guidance systems have been provided in the TBM to ensure that the tunnelling is done as per the designed alignment to the highest level of accuracy. Extensive instrumentation has been done throughout the underground stretch and continuous online and real-time monitoring is done by a team of dedicated experts to ensure safety during TBM operation.

Kumar Keshav, Managing Director - Lucknow Metro Rail Corporation said, "This unique achievement was only possible due to the hard work and commitment of Lucknow Metro Project team. The tunnelling in this stretch posed an enormous technical challenge as the route passes beneath highly congested areas and basements of commercial establishments to lay the tracks at the depth of 12 to 15 meters below ground level. With this 'breakthrough', LMRC achieved one of the biggest milestones in form of completion of first TBM drive in the construction of underground metro in the state of Uttar Pradesh."

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