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India’s first underwater metro tunnel to co
TOPIC id: 186337
Replies: 9 - Views: 282
200101 Superstar001 2017-06-02 16:47:05

Engingeering Marvel: India’s first underwater metro tunnel to connect Howrah and Kolkata

The metro operating in the tunnel will be the first metro train to operate without a driver.



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The future of technology is already here. The day isn’t far when people of India would be able to travel through the tunnel sitting on the riverbed of Holy Ganga. West Bengal becomes a home to India’s first underwater metro tunnel. The tunnel is placed on the riverbed of Hooghly river, that connects Howrah to Kolkata. It is not only India’s first underwater metro tunnel, but also its first underwater transportable tunnel. The tunnel is approximately 30 metres under the water and passing through the 520-metre-wide river Ganga. 
200101 Superstar001 2017-06-02 16:48:04


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Another underwater tunnel is being readied next to this, which will be functional till July. This marvel of engineering is a part of East West Metro Project. Under this project, a route of 16 kilometre from Howrah to Kolkata is being set up. A tunnel of 8-10 kilometre stretch is also a part of this plan. Each tunnel is around 5.55 metre in diameter and placed 16 metre apart from each other. 

According to the plan, in year 2019, the metro service will mark the beginning in these tunnels. Plus, the metro operating in the tunnel will be the first metro train to operate without a driver. This ultra-modern 6-coach metro train can be operated right from the metro station by the operator.
200101 Superstar001 2017-06-02 16:48:54


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Special machine, Tunnel Boring Machine has been deployed from Germany for the task. The engineers involved in the project claim that the tunnel is strong enough to withstand 120 years of time. Extremely heavy-duty material is being used to construct the tunnel. The walls of the tunnels have been made using concrete and superior-quality steel. Even if the metro train fails to operate in the middle of the tunnel, the passengers can be safely taken out of the tunnel. 
200101 Superstar001 2017-06-02 16:50:42

The under-the-river Metro ride will be all of 60 seconds long. Two top-order tunnel boring machines, nicknamed Rachna and Prerna, are digging India's first ever under-the-river Metro tunnels in Kolkata at full speed. If all goes through, then one could take a Metro ride under the Hooghly river in December 2019.Tunneling for the project began at the Howrah end in April under the Hooghly river. The tunnels are 520 metres long and about 30 metres deep.

The under-the-river Metro ride will be all of 60 seconds long.The 90-metres-long tunnel borers 'Rachna' and 'Prerna', named after the daughters of a project officer who died in a road accident, were brought from Germany in parts and assembled underground. 'Rachna' took a little over a month to cross the Hooghly.Tightest precautions are in place for workers and for commuters, once the Metro is ready. Special concrete sections are being used to line the tunnel.
200101 Superstar001 2017-06-02 16:51:45

Summary: The under-the-river Metro ride will be all of 60 seconds long. Two top-order tunnel boring machines, nicknamed Rachna and Prerna, are digging India's first ever under-the-river Metro tunnels in Kolkata at full speed. "It is a huge challenge," said Satish Kumar, managing director of the Kolkata Metro Rail Corporation Limited. If all goes through, then one could take a Metro ride under the Hooghly river in December 2019.Tunneling for the project began at the Howrah end in April under the Hooghly river. Now, it will get yet another honour of getting India's first metro under the river," said chief engineer Parshuram Singh.
150119 badal 2017-06-02 16:59:37

s-1up
193257 rohiit 2017-06-02 18:06:01

s-up nice
181163 ViDhyA_Baani 2017-06-02 18:34:08

s-up
53144 wasim20khan 2017-06-02 19:36:49

s-wow22
200101 Superstar001 2017-06-03 14:31:31

thank u all s-smile
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