The assembly of the second Tunnel Boring Machine (TBM) has commenced at Sawli (near Ghansoli) in Mumbai at a depth of 39 meters below ground. This TBM will begin its journey from Sawli towards Vikhroli.
The gantry weighing 190 metric tons, with dimensions of 18 meters in length, 10 meters in width and 9 meters in height, has been successfully lowered.
There are a total of 4 gantries in both the TBMs, which will be attached to the main shield assembly and cutterhead.
The gantries will travel along the entire excavated length as part of the TBM, supporting critical operations such as excavation, waterproofing and installation of tunnel lining segments.
Due to space restrictions in the Sawli shaft, the assembly of the TBM at 39 meters below ground has been meticulously planned.
The TBM’s initial drive is expected to commence in July 2026.
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