Delhi (Metro Rail News): A major milestone has been achieved for Delhi Metro’s Phase 4 as Afcon Infrastructure’s TBM Tejas (S-711) achieved a breakthrough at Maa Anandmayee Marg Station of Golden Line spanning 23.622 Km between Aerocity and Tugalakabad through 16 stations for Package DC-07.
TBM Tejas’ Journey in Delhi Metro Phase 4
TBM S-711, nicknamed TBM Tejas, is a refurbished Herrenknecht Earth Pressure Balance (EPB) machine. In November 2023, TBM Tejas became the second TBM deployed by Afcon for the Delhi Metro Phase 4 under Package DC-07.
TBM Tejas constructed a 2.674 km downline tunnel from the Air Force Launch Shaft, (east to Sangam Vihar Station) to Maa Anandmayee Marg Station in 14 months.
With this development, a total of 6 breakthroughs have been achieved for the Golden Line of Delhi Metro Phase 4.
In December 2024, TBM Amrit (Robbins 372) completed the tunneling for the parallel line, marking the Completion of the longest tunneling drive in Delhi Metro Phase-4.
Package DC-07
In January 2022, Afcon grabbed Package DC-07 from Delhi Metro Rail Corporation at an estimated cost of Rs. 1669.20 crore with a 42-month deadline.
Scope of Work
The scope of work under this package includes the design and construction of underground twin tunnels from Sangam Vihar Metro Station to the existing Sarita Vihar Depot. The contract also involves the construction of 3 underground tunnels, construction of the retrieval and launching shaft.
Stations:
- Maa Anandmayee Marg
- Tughlakabad Railway Colony
- Tughlakabad
Future Prospective
The TBM Amrit and TBM Tejas will be deployed to construct twin tunnels from Maa Anandmayee Marg to Tughlakabad Railway Colony.
