Tata’s TBM S79 Records Pune Metro’s Final Breakthrough
Gulermak – Tata Projects JV on Saturday celebrated the completion of tunneling work for Pune Metro Phase 1’s 16.589 km Purple Line (PCMC – Swargate).
This historic 8th and final breakthrough by tunnel boring machine S79 (Mula-II) was recorded at Budhwar Peth Station for the 2.74 km Package UGC-02’s 2144m down-line tunnel connecting Swargate and Budhwar Peth.
This was S79’s 4th breakthrough. Prior to this, the Ø6.61m Terratec EPB machine was deployed on Package UGC-01 and arrived at Budhwar Peth from Civil Court in July 2021.
A video of the breakthrough can be viewed on Pune Metro’s Facebook page.
Gulermak – Tata Projects had deployed a total of 3 TBMs to build Pune Metro Phase 1‘s 6.52 km underground section between Range Hills Ramp – Swargate. Tunneling by TBM S78 commenced on December 7, 2019 and the first breakthrough was recorded on December 31.
Here’s what the future holds for each machine:
With this development, I see the underground section opening up for operations no sooner than mid-2024 with the quantum of pending civil, systems, architectural finishing, testing and other activities to go. Prior to that we should see a part of the Aqua Line’s Reach 3 (7.657 km Civil Court – Ramwadi) opening up in 2023.
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