T-206 – 5th TBM for Mumbai Metro’s Line-3 Arrives at Mumbai Port

So before TBM T-61 made a touch down in Mumbai on Sunday evening, the city’s port in the morning in fact received parts of another tunnel boring machine, this time T-206 – a STEC machine which was previously deployed in Singapore and passed factory acceptance testing (FAT) for Mumbai Metro’s 33.5 km Line-3 in August. With that, I’ve renamed T-61’s post to #6 for factual consistency.

This refurbished Ø6.65m Earth Pressure Balance TBM is part of a 3 TBM order (2 refurbished and 1 new) which will be deployed by Larsen & Toubro and Shanghai Tunnel Engineering Company (L&T – STEC JV) to build twin tunnels on the line’s 4.157 km package UGC-07, between Marol Naka – MIDC – SEEPZ  – Aarey Colony Ramp, which was awarded by the Mumbai Metro Rail Corporation Ltd. in July 2016.

As per the tunneling plan, T-206 will exclusively be deployed to excavate and build three tunnels, all on the up-line –

Launch Site Destination Length
Pali Ground Shaft CSIA T2 1296m
Pali Ground Shaft MIDC 680m
MIDC SEEPZ 1003m

The circular Pali Ground Shaft is located just north of the Marol Naka Station –

Package UGC-07 between Marol Naka – Aarey Colony Ramp – view Mumbai Metro map and info

Some images –

Front-shield – Photo Copyright: Rishi Kumar

Mid-shield – Photo Copyright: Rishi Kumar

Photo Copyright: Rishi Kumar

Backup gantry – Photo Copyright: Rishi Kumar

With T-206 and T-61 arriving on Sunday, now 6 out of 17 TBMs are in the city. Of those, TBM S-1073 was commissioned earlier this month while two TBMs are planned to be commissioned later this month –

• TBM T-58 at CST Station towards Kalbadevi Station on package UGC-02
• TBM S-1074 at Nayanagar Shaft towards Sitladevi Station on Package UGC-04

For more updates, check out the Mumbai section of The Metro Rail Guy!

– TMRG

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Global traveler who prefers mass rapid transit

5 Responses to "T-206 – 5th TBM for Mumbai Metro’s Line-3 Arrives at Mumbai Port"

  1. V M says:

    Have any indian cos yet developed the skills to operate tbms independently of foreign partners ?

    Reply
  2. Piyush says:

    Admin…. until now no update on how much distance covered by TBM S-1073?? Give some info about that.

    Reply

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