Delhi Metro Magenta Line DC-05’s 1st TBM Bhoomi Starts Tunneling
Afcons Infrastructure on Friday commissioned TBM S-710 – the first tunnel boring machine of Delhi Metro Magenta Line’s 7.46 km Derawal Nagar – RK Ashram extension at Derawal Nagar Station’s Launch Shaft.
This refurbished Ø6.63m diameter Herrenknecht Earth Pressure Balance (EPB) machine nicknamed Bhoomi was earlier deployed by Afcons in Chennai Metro’s Phase 1 (2015-2017) and Ahmedabad Metro’s Phase 1 (2018-2020).
It passed factory acceptance tests (FAT) in February 2023 and Afcons began lowering its parts into Derawal Nagar Station’s Launch Shaft in May 2023.
From Derawal Nagar Station, the TBM will first travel towards Ghanta Ghar Sation and onward to Pul Bangash Station of the Red Line built in Delhi Metro’s Phase 1. Per DMRC’s press release, the depth of tunneling will vary from 12.4m at Derawal Nagar station upto 25.9m near the Najafgarh drain.
Delhi Metro Rail Corporation (DMRC) had awarded underground DC-05’s Rs. 2481.50 crore contract in January 2022 with a 42 month deadline.
7.46 km Package DC-05 will take 38.2 km Magenta Line deeper into North-Central Delhi, skirting Old Delhi, as part of the 28.92 km Janakpuri West – RK Ashram extension.
It’ll connect a ramp north of Derawal Nagar with RK Ashram via 6 stations at Derawal Nagar, Ghanta Ghar, Pulbangash (interchange with Red Line), Sadar Bazar, Nabi Karim & Ramakrishna Ashram Marg (interchange with Blue Line).
With this development, S710 has become the 2nd of 5 TBMs to start tunneling work for the city’s Magenta Line in Phase 4. Overall, it’s the 4th of 16 machines in Phase 4 to start tunneling for building approximately 27 km twin tunnels.
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– TMRG
Dear TMRG, any update on the opening of Phase-4’s elevated sections? They have been under-construction for a while now. Opening of elevated sections itself will add 30 km to the network and bring vast areas of NE Delhi & West Delhi within its ambit.
Hi, nothing major at this time. DMRC just announced civil completion of ~4 km Majlis Park – Mukarba Chowk section. This is significant, but a very random announcement. It’s a combination of DC-01 and DC-03R’s viaduct along ORR.
https://twitter.com/OfficialDMRC/status/1665230128295845890
Hello admin if you can post job vacancies related to these extension projects of Delhi Metro even if it’s private companies working as contractors and subcontractors job vacancies will be helpful.
Hi, I don’t track vacancies. I’d recommend checking LinkedIn or directly with the companies’ websites.
What about your project in Buji Sofala, Mozambique. Project still not completed, material used for road construction is very low grade. It’s shameful as heard from local and government people ” if India is not capable it’s better to call China’s”.