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Kanpur Metro KNPCC-05’s Final Tunnel Ring Segment Cast by Gulermak – Sam JV

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Gulermak – Sam India Builtwell JV last week poured concrete and celebrated casting their final tunnel ring segment for 32.4 km Kanpur Metro Phase 1‘s underground Package KNPCC-05.

Their casting yard is located in Kanpur’s Khyora neighborhoood (view on Google Maps) from where I estimate approximately 3500 segments have been cast to build twin tunnels between MacRobertganj (Permat) Ramp – Nayaganj Station on Kanpur Metro’s 23.785 km Line-1 (IIT Kanpur – Naubasta).

3.619 km long KNPCC-05 is the first of three underground sections of Kanpur Metro’s Phase 1 where construction work started in October 2021. It consists of 4 twin-tunnels (total 8), and of those 6 tunnels have been built so far between Chunniganj and Nayagang by two Terratec EPB tunnel boring machines – TBM Tatya (S92) and TBM Nana (S93).

Cake anyone? – Photo by Debabrata Adhikari

Each reinforced concrete ring is 1,400mm wide by 275mm thick, and consists of 5 segments + 1 smaller ‘key’ segment.

Kanpur Metro KNPCC-05’s Final Tunnel Ring Segment Cast by Gulermak – Sam JV
Casting mould – Photo by Debabrata Adhikari

Uttar Pradesh Metro Rail Corporation (UPMRC) had awarded Gulermak – Sam India with Package KNPCC-05’s construction contract in March 2021 with a 36 month deadline.

Besides constructing twin tunnels, they’ll be building 4 stations at Chunniganj, Naveen Market, Bada Chauraha and Nayaganj, each 215m long.

Route of Kanpur’s first underground section (Ramp – Nayaganj) with the exact location of stations enroute – view Kanpur Metro route map & information
UPMRC & Gulermak-Sam JV’s officials – Photo by Debabrata Adhikari

Here’s a list of tunnels completed so far by both TBMs Nana (up-line) and Tatya (down-line). The months below indicate the tunnel breakthrough month – check out the links for images.

Both machines are currently on their 4th and final drives from the Cut & Cover Shaft located in MacRobertganj (Permat) to Chunniganj Station – a distance of roughly 414 meters. Nana will be the first to finish its job followed by Tatya, which I believe should arrive by end of February based on past excavation rates.

For more updates, check out the Kanpur section or my Home Page! Sign up for free instant email notifications on new posts over here. Like this post? Get early-access to updates and support the site over here.

– TMRG





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