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Saturday, 15 April 2017

Kolkata Creates History , TBM starts boring under Hooghly River !

Ureka ! Once again history has been created by the City Of Joy ! The 1st Metro of the Indian Subcontinent ran in this City . This time , it's the 1st metro to go under a river , which gets 100% of its water from River Ganges !

This Mighty Gift of Bengali New Year (নববর্ষ) to Bengalis made them feel proud of their own land once again ! Kolkata's Pride is improving !

On Tuesday , Kolkata Metro Rail Corporation Limited commissioned Herrenknecht's TBM S640 , nicknamed Prerna under river Hooghly . The TBM will take at least 3 months to cross the river . There will be a Ventilation shaft near Armenian Ghat , which will be serving fresh oxygen to the tunnel , and also will be acting as a Emergency Exit . KMRCL plans to install elevators , as the shaft will be one of the deepest in the Subcontinent .

Place where the Ventilation Shaft is scheduled to be constructed 

The total distance between Howrah Shipping Ghat and Armenian Ghat is 487 metres and will be covered within 3 months. The TBM will be covering a total distance of 1.7 km in between Howrah and Mahakaran Shaft .

Yesterday , KMRCL conducted a Puja , worshipping River Ganga ; A point where Technology meets Religious Believes of Human Beings ! The machine was commissioned today morning .


“It is an important day after a very long period of lull and despondence. This is, significantly , the nation's first underriver tunnel. It was both a celebration of our collective efforts, a salute to thousands of workers who are unsung heroes and a prayer for successful completion of the tunnel. This river is revered as a goddess and so the puja is to offer prayer as we would be working below the river bed,“ said Virender Kaul, the project manager of Transtonnelstroy AFCONS .

Here are some Photos by Telegraph India :-

Special Tunnel Liners casted for underwater tunnel

Tunnel going straight away towards Riverbed

TBM's Cutter Head

Following are the videos of Ganga Puja by Ebela's Online Newspaper :- 



Interviews of AFCONS Engineers :- 



Some images , which I think will be benefiting you :- 





Coming to Phase 1 , here I got a video of City Centre-Sector 5 stretch. Video also covers Mahisbathan area of Metro Line 6 . Have a look at it :-


BEML will start manufacturing the rakes in August , and will be delivering the 1st rake in November . Then it will be delivering 1 rake each month . 

Regarding Platform Screen Doors , metro will be installing them not before April 2018. 

For more updates , check out my Kolkata Metro Section . Thank You . 
Have a Nice Day !

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