NEW DELHI (Metro Rail News): The 65.1-kilometre Delhi Metro Phase 4 project’s tunnel boring machine manufacturer Robbins finished the factory acceptance tests (FAT) on TBM 367 and TBM 372.
Afcons Infrastructure will use the 6.5 m diameter Earth Pressure Balance (EPB) machines that have been repaired. They were initially deployed to build Singapore MRT and brought to Robbins’ yard in Gurgaon’s Sector 74.
TBM 367 on Magenta Line
TBM 367 and 3 more Robbins machines will be deployed by Afcons to work on Package DC-05 of the 28.92 km Janakpuri West – RK Ashram extension of the Delhi Metro Magenta Line.
The 7.46 km subterranean section connects a ramp north of Derawal Nagar with RK Ashram with six stations—Derawal Nagar, Ghanta Ghar, Pulbangash (interchange with Red Line), Sadar Bazar, Nabi Karim, and Ramakrishna Ashram Marg.
Afcons won a contract of Rs. 2481.50 crores for Package DC-05 from Delhi Metro Rail Corporation (DMRC) in January 2022 with a 42-month deadline.
TBM 372 on Silver Line
Afcons will send out TBM 372, another Robbins machine, and two Herrenknecht machines to work on Package DC-07 of the 23.622 km Silver Line of the Delhi Metro, which connects 16 stations from Aerocity to Tughalakabad.
Package DC-07 would link the eastern end of Sangam Vihar Station and Sarita Vihar Depot through three stops at Maa Anandmayee Marg, Tughlakabad Railway Colony, and Tughlakabad, where it will interchange with the Violet Line station constructed in Phase 2.
Rs. 1669.20 crore contract for Package DC-07 was awarded in January 2022 with a 42-month completion period.
The other Robbins machine preparing for FAT for DC-07 is 364. According to reports, TBM S-1264 (Varada) from Bangalore Metro Phase 2 and TBM S-711 from Chennai Metro Phase 1 will be deployed by Afcons.
