Mumbai Metro-3 update: MMRC achieves 32nd breakthrough at Dadar Metro Station

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Mumbai Metro Rail Corporation (MMRC), on Monday achieved 32nd breakthrough of 1.10-km long tunnel from Siddhivinayak north shaft to Dadar Metro Station in the presence of Mr. Ashutosh Kumbhakoni, Advocate General of Maharashtra. He said, “I appreciate that a monumental task is being completed while causing as little inconvenience to the public as possible. This line will be an important addition to the public transport infrastructure and a boon to Mumbaikars”.

  • The Herrenknecht made Tunnel Boring Machine (TBM) Krishna-2, equipped with Earth Pressure Balance technology, was lowered on December 16, 2019.
  • The TBM has completed the upline stretch in 295 days using 791 rings.

“Today’s breakthrough was a challenging task as Dadar Metro Station – one of the more prominent stations on the Colaba-Bandra-SEEPZ corridor – is located in close proximity of residential buildings and commercial shops”, said Mr. Ranjit Singh Deol, Managing Director, MMRC.

  • The overall progress of Dadar Metro Station is 61%.
  • Package-4, which consists of Dadar, Siddhivinayak and Shitladevi Metro Stations, showcases overall 94% tunneling progress and 95% of the excavation work.
  • The total tunneling of the project completed is 87% and civil work is 60% as on 5th Oct, 2020.

Recent Progress:

MMRC on 21st September, 2020 achieved its 31st breakthrough of the 1.5-km long tunnel from Sahar to CSIA T1 station. Terratec-made Dual mode hard rock Tunnel Boring Machine (TBM) Tapi-1 completed the downline stretch in 449 days using 1080 rings.

  • The overall progress of CSIA T1 station is 55%.
  • Package-6, which consists of CSIA T1, T2 and Sahar Road stations, showcases overall 85% tunnelling. 
  • The total tunnelling of the project completed is 87% and civil work is 60%. 
  • There are few more breakthroughs to be achieved on the project in coming months as 7 TBMs are on work in different areas.

Source: MMRC-Press Release | Image Credit: MMRC

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