Metros Tenders

Terratec’s Delhi Metro TBM Narayani Passes Factory Tests for Silver Line


J Kumar Infraprojects and tunnel boring machine (TBM) manufacturer Terratec this Saturday completed factory acceptance tests (FAT) in Mumbai on TBM S-111 for constructing Delhi Metro’s 23.622 km Silver Line which will connect Aerocity – Tughalakabad via 16 stations.

This new 6.61m diameter Earth Pressure Balance (EPB) machine nicknamed Narayani will the third of three machines to be deployed by J Kumar for building twin tunnels on 65.1 km Delhi Metro Phase 4 project‘s 6.116 km Package DC-08 between Aerocity – Kishangarh.

Photo by Swatantra Parashar

Delhi Metro Rail Corporation (DMRC) had awarded J Kumar with 65.1 km Delhi Metro Phase 4’s Rs. 1611.74 crore contract for Package DC-08 in March 2022 with a 42 month deadline.

J Kumar’s 6.116 km Aerocity – Kishangarh section is on the western-end of the line and comprises of twin tunnels, and 4 stations at Aerocity, Mahipalpur, Vasant Kunj & Kishangarh from chainage (-) 760 mt. to 5356.285 mt.

Indicative alignment of Delhi Metro Silver Line’s Package DC-08 – view Phase 4 route map & info

Some snaps from Mumbai’s Ghodbunder Road:

Photo by Swatantra Parashar
Photo by Swatantra Parashar

J Kumar’s tunneling plan for S111 remains unknown to me, but that should be somewhat clear in the next 2 months. They’ve already deployed 2 refurbished machines from Mumbai Metro’s Line-3 at Kishangarh Station towards Vasant Kunj: TBM S63B (Sonakshi) and TBM S64B (Shalini).

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