Last TBM Commissioned for Delhi Metro’s Magenta Line at Chirag Delhi

The last Tunnel Boring Machine (TBM) to excavate & build the 23.807 km underground section of Delhi Metro’s 38.235 km Magenta line from Janakpuri W to Botanical Garden has been commissioned! Yesterday evening, the Pratibha-FEMC JV team for contract CC-23 of the Delhi Metro Phase 3 project started tunneling work for the 545m down-line tunnel from the Chirag Delhi station towards the Greater Kailash (GK) station, and completed building one temporary ring by midnight. Tunneling work for this section’s parallel up-line tunnel started on January 16.

Alignment of Chirag Delhi - Greater Kailash section - view Delhi Metro information

Alignment of Chirag Delhi – Greater Kailash section of Delhi Metro’s Magenta line –
view Delhi Metro map & information

Images from the Chirag Delhi station’s TBM launch shaft:

ChiragDelhi3

CC-23’s TBM for the down-line between Chirag Delhi & Greater Kailash – Photo Copyright: Anilkumar Laddu

ChiragDelhi4

View from the top of the shaft – Photo Copyright: Anilkumar Laddu

ChiragDelhi1

TBM’s backup gantry – Photo Copyright: Anilkumar Laddu

ChiragDelhi2

1st temporary ring! – Photo Copyright: Anilkumar Laddu

Photo Copyright: Harpreet Singh Riar

Another snap of the 1st temporary ring – Photo Copyright: Harpreet Singh Riar

Parts of this TBM were lowered into the launch shaft in January. Here are a couple of images:

Photo Copyright: Anand Prasad

Down-line tunnel’s eye-seal being lowered on January 11 – Photo Copyright: Anand Prasad

Midshield of the downline's TBM was lowered on January 19 -

Midshield of the down-line’s TBM was lowered on January 19 – Photo Copyright: Lalvesh Tiwari

Photo Copyright: Ankur Tyagi

Down-line & Up-line TBMs at Chirag Delhi in January 2016 – Photo Copyright: Ankur Tyagi

The distance between the Chirag Delhi and Greater Kailash stations is only 545m – one of the shortest on the line, so this TBM can be expected to make a breakthrough at Greater Kailash in May.

With this TBM on its way, there are now 9 TBMs operating on the following sections of the Magenta line:

Contract Contractor Origin Destination Line
CC-23 Pratibha – FEMC Greater Kailash Nehru Enclave Up-line & Down-line
CC-23 Pratibha – FEMC Chirag Delhi Greater Kailash Up-line & Down-line
CC-23 Pratibha – FEMC Chirag Delhi Panchsheel Park Down-line
CC-27 L&T – SUCG Shankar Vihar Aravali Mid-Shaft Down-line
CC-27 L&T – SUCG Vasant Vihar Aravali Mid-Shaft Down-line
CC-27 L&T – SUCG Vasant Vihar RK Puram Mid-Shaft Up-line
CC-27 L&T – SUCG Vasant Vihar Munirka Down-line

Out of last 9 TBM breakthroughs, 3 of them are expected to take place towards the end of this month. In no particular order:

• At the Aravali mid-shaft from the Vasant Vihar station for the down-line tunnel. The parallel up-line tunnel was completed in January 2015. See: #TBT – Delhi Metro Completes Palam – Shankar Vihar Tunnels
• At the Panchsheel Park station from the Chirag Delhi station for the down-line tunnel. The parallel up-line tunnel was completed in December 2015. See: Delhi Metro TBM Makes a Breakthrough at Magenta Line’s Panchsheel Park Station
• At the Nehru Enclave station from the Greater Kailash station for the up-line tunnel. The parallel down-line tunnel has completed roughly 1/3rd of its journey and is expected to make a breakthrough in April.

For a detailed report with recent progress made on all Delhi Metro Phase 3 lines’ tunnels, please see my February 2016 Tunneling Update.

For more updates on Delhi Metro’s Phase III, please visit the Delhi section of The Metro Rail Guy!

– TMRG

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Global traveler who prefers mass rapid transit

2 Responses to "Last TBM Commissioned for Delhi Metro’s Magenta Line at Chirag Delhi"

  1. Kashyap says:

    Which all TBMs are yet to be commissioned for the Delhi metro’s PINK line?

    Reply
    • TMRG says:

      Hi, there are 3 more left:
      • CC-04 – 2 TBMs from the Majlis Park shaft to Rameshwar Nagar mid-shaft in order to complete the balance work for both up-line & down-line tunnels between Majlis Park and Azadpur stations
      • CC-18 – 1 TBM from the RK Puram shaft on the Ring road to Bhikaji Cama Place station for the down-line tunnel

      Reply

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