To overcome delays in the Phase II expansion, Chennai Metro Rail Limited (CMRL) is set to procure three new Tunnel Boring Machines (TBMs) at an estimated cost of ₹180 crore.

Key Takeaways

  • CMRL will invest ₹180 crore to acquire three additional Tunnel Boring Machines (TBMs).
  • The machines will be deployed in the Thiruvanmiyur-Taramani, Thousand Lights-Anna Flyover, and Mandaiveli-Thirumayilai stretches.
  • Corridor 3 currently has 23.36 km of tunneling work pending.
  • Delays were primarily caused by utility relocation and station shaft construction lags.

In a strategic move to expedite the ongoing Phase II expansion, Chennai Metro Rail Limited (CMRL) has announced the procurement of three additional Tunnel Boring Machines (TBMs). This decision comes in response to the significant delays encountered during tunneling operations across several critical segments of the network.

The procurement, estimated to cost approximately ₹180 crore, aims to bolster the construction capacity of Corridor 3. The new TBMs are slated for deployment in three specific stretches: Thiruvanmiyur to Taramani, Thousand Lights to Anna Flyover, and Mandaiveli to Thirumayilai. These machines are expected to arrive in the city sequentially in the coming months.

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Why This Matters

BozokMedia analysis shows that the efficiency of Corridor 3 is vital for the overall success of the 118.9-km Phase II project. This corridor, stretching from Madhavaram to SIPCOT, features the project's largest underground network, spanning 26.7 km. Currently, out of the 43.04 km of required tunneling for this corridor, only 19.68 km has been completed, leaving a substantial 23.36 km yet to be excavated.

The deployment of additional TBMs is a critical intervention to mitigate the compounding effects of previous construction delays.

The project has faced several hurdles, including the cancellation of tenders for underground stations, delays in station shaft construction, and the complex task of relocating various urban utilities. However, officials remain optimistic, noting that several machines that were previously stalled have now achieved successful breakthroughs.

Historical Background

The Chennai Metro Phase II is a massive infrastructure undertaking designed to revolutionize urban mobility in Chennai. By expanding the reach of the metro, the city aims to significantly reduce road congestion and provide a sustainable, high-speed transit alternative for millions of commuters.

Did You Know?: The Phase II project is one of the largest metro expansions in India, covering a massive network of nearly 119 kilometers.

Frequently Asked Questions

1. Which specific sections will the new TBMs work on?
They will be deployed on the Thiruvanmiyur-Taramani, Thousand Lights-Anna Flyover, and Mandaiveli-Thirumayilai stretches.

2. What caused the initial delay in tunneling?
Delays were attributed to utility relocation, station shaft construction delays, and tender cancellations.