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Old April 29th, 2013, 04:28 AM   #141
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A glimpse of the EW Metro where it is supposed to take a turn and go underground; video taken by Tim Traill and posted in October 2011:

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Originally Posted by Suncity View Post

video by TimTraill

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Old April 29th, 2013, 04:36 AM   #142
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Khudiram station exterior renovation; pics posted Nov. 2011

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photos by photo bagan



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Old April 29th, 2013, 04:40 AM   #143
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Park Street (underground) Metro Station exterior; photo posted November 2011

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Originally Posted by BengaliTiger View Post
CC: Kazuya Yamashiro

image hosted on flickr

Kaji Nazrul Station; November 2011-
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Originally Posted by BengaliTiger View Post

CC :AKIv
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Old May 6th, 2013, 05:29 AM   #144
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East - West (E-W) Metro along Maidan (Central Park); originally posted Nov. 12 '11:

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Originally Posted by Suncity View Post
EW Metro along Central Park

photo copyright Klaus Kohut

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Old May 6th, 2013, 05:31 AM   #145
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Wipro Crossing: E-W Metro taking the turn from Salt Lake City to Sector V.
Originally posted on Nov. 13 '11

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photo copyright Biplab Kumar Pal

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Old May 9th, 2013, 04:08 AM   #146
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Considering that ferries are also important to Kolkata's transport system, I included a picture

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Originally Posted by OldKool View Post
3. Kolkata Metro + Tram + Taxi -

Port and water transport

Local water ferries are very common




cc The Hindu
Originally Posted April 10, 2013
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Old May 21st, 2013, 08:06 AM   #147
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BBC slideshow of Calcutta trams

http://www.bbc.co.uk/news/world-asia-india-22460872
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Old May 30th, 2013, 03:46 AM   #148
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I thought I might post some pictures of the Noapara Metro Station:





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Old May 30th, 2013, 03:47 AM   #149
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Old July 25th, 2013, 03:22 AM   #150
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The East-West Metro line U/C (Nov.'11)

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Old July 25th, 2013, 03:40 AM   #151
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Quote:
Originally Posted by kolmetrofan View Post
Jan. '12
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Old July 29th, 2013, 05:13 AM   #152
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March 24th '12
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Originally Posted by Suncity View Post
photo copyright ritu1998



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March 17th '12: work on the Metro line from Airport to Garia U/C

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photo copyright AmitX



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April 18th '12: Metro work U/C at New Town

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Originally Posted by rajdeepray View Post
Metro work in progress south of Action Area 1 , New Town , adjacent to Aquatica -- the following pics have been taken from 15th floor , Greenfield Heights. Pace of work is excellent and huge progress has been made in the last 15 days.



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Old August 4th, 2013, 03:29 AM   #153
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Metro Line 3 (Joka - BBD Bag) U/C.
First Via Duct Installation. Many Ministers were Present for the inaugural ceremony.
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Old August 4th, 2013, 03:32 AM   #154
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Line 2 (Haora Maidan - Salt Lake City Sector 5) U/C.
One of two parallel tunnels completed as a part of Line 2, also called East - West Metro.

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Originally Posted by saptarsi View Post
HIDCO chairman Debashish Sen takes a ride into KMRCL tunnel:

A little while ago, we went by a trolley in the underground tunnel from near Swabhumi. 600 metres are already ready. Here are two photos:


L to R: CMBachhawat (IAS), Debashish Sen, Subrata Gupta (IAS, MD, KMRCL), Rajiv Kumar (IPS).



source
Quote:
Originally Posted by Bombay2Calcutta View Post

I think the rails which we see are the rails which is used only by this trolley. I do not think these are the final rails. The final standard gauge rails will be laid down later. The rail in the pic do not look like SG to me
EW metro will be using 3rd rail 750 V DC Supply

6.Transaction Power System:
a)Traction system voltage : 750 V dc
b) Current Collection : Third Rail
c) SUB station : 2nos (Strand road, Bengal chemicals)

Please go through thevlink below for clarity...
http://kmrc.in/features_overview.html
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Old August 4th, 2013, 03:35 AM   #155
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At another section of U/G line 2

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Originally Posted by kajusen View Post
All photos have been clicked my my friend Timir Baran Roy (https://www.facebook.com/timir.baran.roy) .

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Originally Posted by IU View Post
TBMs have a conveyor belt which bring the soil from the head/front to the back of the TBM. From there the soil is dropped into carts and transported out of the tunnel using a crane.

You can see one of the carts in this pic posted by kajusen:




Inside the TBMs :--



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Originally Posted by Bombay2Calcutta View Post
Inside The Tunnel To Future
Krishnendu Bandyopadhyay TNN


It’s not just the weather or the geographical distance that sets the sizzling heart of Kolkata and the freezing terrains of Iceland worlds apart. But on a hot and humid Friday afternoon, the thrill, anticipation, mystery and elation in the pages of Jules Verne’s all-time favourite, ‘A Journey To The Centre Of The Earth’, came alive during a descent into what one could well describe as the heart of Kolkata. The stairs that spiralled down into the unending darkness ended near a pair of railway tracks, at a depth of about 50 feet. This was no Icelandic volcano, which Verne had picked for his greatest sci-fi plunge, but the feeling was similar for a few anxious minutes during the first visit ever to an East-West Metro tunnel.
The starting point was a pit dug beside Subhas Sarovar. The destination: the belly of a giant earthworm that is carving out Kolkata’s future at a frenzied pace in a hubbub of activity right under the languid lake. A mud-cart pulled by a diesel loco makes the journey from the foot of the stairs and right into the Tunnel Boring Machine (TBM), the multi-tasking wonder tool that drills into the earth, scoops out the muck and places tunnel rings at the same time. The TBM, 80 metres long and almost 30 feet high, has been in action for about two months now, and has drilled almost a kilometre, from the Sarobar to Phoolbagan.
The TOI team was accompanied by Subrata Gupta, managing director of the executing agency of the East-West project, Kolkata Metro Rail Corporation (KMRC). “There is an impression that no progress in the project is being made as nothing can be made out from the surface,” he said. The throng of evening walkers and couples who frequent the Sarobar for their hour of peace wouldn’t disagree. The waters are as placid and the environs as calm as ever, despite all the commotion below.
Indeed, technology can make the complex look simple. “The 700-metre underground tunnel in the northsouth Metro employed the ‘cut-andcover method’ that took four years. For the same length of tunnel, it takes less than two months here,” explained Aniruddha Roy, deputy general manager of ITD-ITD CEM Joint Venture, the contractor engaged for the tunnel work from Writers’ Buildings to the Sarovar. Roy was involved in the first Kolkata Metro project three decades ago as an engineer.
The diesel-cart is the TBM’s constant companion, collecting the mud and carrying it to a truck. The mud is dumped as land-fill material in Dankuni or Rrajarhat. The TBM has an air-conditioned control room fitted with a number of monitors constantly measuring the earth-pressure, alignment and gradient. The temperature is always kept below 30°C.
At the front of this giant earthworm is the rotating cutting wheel and an erector that places the tunnel rings. Pointing to a yellow pipe, Gupta said, “This is our lifeline in the tunnel. Through this pipe, oxygenated air is thrown into the tunnel constantly.”
“Power is supplied from two generators, each generating 2,000KV power to run the project,” said Chundee Mookhan, project manager (tunnel) of the tunnel building contractor. The generators consume 5,500 litres of diesel per day, Gupta said.
For, north-south metro cut-andcover, the damage to the buildings on either side of Central Avenue, J L Nehru Road and Asutosh Mukherjee Road were huge. “Even after the project was over, Metro railway had to pay huge compensation for the damage. To avoid this, we carried out a building condition survey along the metro alignment. On the basis of the survey, we categorized 486 buildings as good, bad, average and vulnerable. Accordingly, we formulated our underground construction strategy. In a few cases, we have strengthened the structures of the building to prevent any damage. We have put sensors to detect even hairline cracks in the foundations. The moment it is detected, we get it repaired,” Gupta said.
The most challenging part of the tunnel work will be below the riverbed. “Two tunnel boring machines, which have been re-assembled at Howrah, would be lowered along the vertical tunnel at Howrah Maidan shortly. The first station on the other side of the Hooghly will be somewhere below the ground in between platform 15 and 17 at Howrah station. We are working overtime to finish it earlier than the scheduled date of completion. Hopefully, the twin cities will be connected by Metro by early 2015,” said Gupta.



Workers toil inside the 1-km East-West Metro tunnel between Subhas Sarovar and Phoolbagan





Quote:
Originally Posted by Bombay2Calcutta View Post
15-km tube-link to connect IT hub in Salt Lake’s Sector V to Howrah Maidan



Workers are busy at tunnel of the East West Metro Rail in Kolkata. - A. Roy Chowdhury
Kolkata, June 26:

Prof Hardwigg went in to see what the unknown holds in Jules Verne’s ‘A Journey to the Centre of the Earth’.

Years later, a robotic groundhog out here in Kolkata is digging out soil from the heart of the city. It is the tunnel boring machine used for the East-West Metro project.

The gigantic 80-metre long German machine, guzzles nearly 2,000 litres of diesel or 220 kVa of power to dig deep underground to create a 5 km-long cavernous tunnel.

The nearly 5-km stretch will come up after consuming nearly 2.5 lakh cubic metres of concrete, 45,000 tonnes of reinforced steel and nearly a lakh tonne of cement.

The tunnel will help the new 15-km tube-link connect between the IT hub in Salt Lake’s Sector V (on the eastern fringes) and Howrah Maidan (on the western flank of the river Hooghly).

The underground part will pass through some of the busiest parts of the city including the Howrah and Sealdah stations. As we watch, the machine keeps burrowing, taking out tonnes of earth piling them onto a train.

Once burrowing is over, a robotic arm moves in with a concrete segments and places a 1.2-m wide pre-cast concrete ring.

A 12-metre length of the tunnel is thus created everyday.

Nearly 240 workers of the Indo-Thai consortium of ITD-ITD Cem sweat it out.

Around 20 per cent or 48 of them are of Thai origin specialised in such tunnelling.

Normal Life Unaffected

As work goes on in full flow nearly 1.8 metres below the road surface, traffic movement and normal life atop is unperturbed. Building residents take a look at the ongoing work from their multi-storied apartments - some in wonder and some unhappy with the dust generated.

“I remember life was thrown out of gear when the north south metro line came up. Initial years, were tough on the common man,” Mr Anil Khurana, a resident of the region said.

ITD - ITD Cem officials admit that except the diversion and some closure of roads there have been very less disruptions.

Monitoring of work

“We surveyed the underground utilities and nearby buildings where work will take place. We have been careful in measuring vibrations to see if damages have been there or not,” Mr Chundee Mookhan, Project Manager (Tunnel), ITD-ITD Cem, told Business Line. “We have been careful to see that there are no major disturbances,” he adds. He is not wrong. Down there in the tunnel, eyes are glued to a computers screen that monitors earth pressure.

Officials say that the TBM is aligned up to 4 mm accuracy and has been able to bore nearly 1.5 km (740 metres on up and down lines) with a speed 300 m per month.

Last edited by n20; August 4th, 2013 at 03:56 AM.
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Old August 4th, 2013, 03:51 AM   #156
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Line 4 Noapara Rake Rehab workshop inaugurated for airconditioned rakes

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Quote:
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Two rail coach-makers in fray to provide 14 air-conditioned rakes

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Old August 4th, 2013, 04:05 AM   #157
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The underwater tunnel plan for Line 2 under Hooghly River to connect Haora and Kolkata-

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Cellular connection for operational Metro

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Originally Posted by Bombay2Calcutta View Post
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Old August 6th, 2013, 07:26 PM   #158
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Line 2: TBM breakthrough at Phoolbagan for U/G Metro Station
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FROM KMRC SITE-phoolbagan breakthrough













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Old August 10th, 2013, 09:56 AM   #159
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U/G update on Sealdah

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sealdah progress



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Old August 10th, 2013, 09:58 AM   #160
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Line 2: elevated section

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elevated viaduct





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