Pune Metro Update: Tunnel Boring Machine (TBM) Arrives in Pune

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Pune: The first Tunnel Boring Machine (TBM) will be used to construct a tunnel for the metro rail project arrived in Pune on Wednesday. The TBM will be used for the 5km underground section – which runs from the College of Agriculture in Shivajinagar to Swargate and has 5 metro stations.

More Information:

  • On November 13, the TBM arrived at Mumbai’s JNPT Port and then the journey to Pune started.
  • Earlier this year, Maharashtra Metro Rail Corporation Limited (MahaMetro) announced that the Gulermak-Tata Projects JV (Joint Venture) had won both of the twin-tube tunnel packages on the new 16.56km-long north-south metro corridor.
  • TERRATEC’s Earth Pressure Balance Tunnel Boring Machine (EPBM) will be used by Gulermak-Tata Projects JV for its underground works contracts on Line-1 of the Pune Metro Rail Project.
  • This underground section is considered the most challenging portion of the line, as it passes under the densely populated areas of Kasba Peth, Budhwar Peth and Mandai market.
  • Major challenges on the project will include tunneling beneath century-old surface structures, crossing under the river Mutha and TBM lowering and dismantling in the very built-up areas of Budhwarpeth and Mandai stations with limited access available.
  • Both machines are expected to arrive in November and will be transported to Pune where they will be assembled and then tested on-site in mid-December.
  • When complete in 2022, Pune Metro network will comprise 3 corridors with a total length of 54.5km.

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