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Old July 10th, 2013, 09:53 AM   #9161
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TBM 2 reaches Mannadi Underground Metro Station on 09-07-13

The Underground Tunnelling of TBM 2 of UAA 01 package has reached Mannadi Station D wall . It has completed 1342 m of tunnelling work from Washermenpet to Mannadi.

TBM 1 preparatory work in progress for tunnelling from Mannadi to High court


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Old July 10th, 2013, 11:43 AM   #9162
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TBM1 has already bored 144m from mannadi towards high court....Please see Page 2 in the below URL

http://chennaimetrorail.gov.in/newsletter/June-2013.pdf
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Old July 11th, 2013, 03:28 AM   #9163
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Chennai Metro Depot.. From Dinamalar.

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Old July 11th, 2013, 04:54 AM   #9164
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Coming, diesel engine for Metro from USA

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Close on the heels of getting the first four-rake metro train from Brazil at Rs 198 crore, the Koyambedu depot for the Chennai Metro Rail is all set to receive a locomotive from the United States in the next few months.

An official from the National Railway Equipment Company (NREC) told Express that the company would be importing 700 horse power diesel locomotive from the United States in a couple of days.

“The shunting engine will be received within the next couple of days from the United States depending on its sailing status. The locomotive is a state-of-the-art machine that is fuel efficient up to 40 per cent when compared to the conventional diesel engines and would reduce emission up to 70 per cent,” the official said.

He said the engine was compatible to Euro III-A standards and would be handy for shunting purposes, besides emergency operations.

He said that the locomotive could be used when there was a power failure in the metro rail grid to pull out the rakes stranded in the tunnel or in the elevated stretch.

“Since it runs on diesel, it will be quite handy. This is the first of its kind. Usually other metros have battery-operated locomotives,” he said.

Already, Chennai Metro Rail will be getting nine trains from Brazil by the end of this year. NREC is also planning to set up a plant in India.

The foundation stone for a locomotive factory site at Sherpur in Sehore district has already been laid.

The factory is a joint venture with Daulat Ram Engineering Services, which manufactures rolling stock components including traction motors and alternators.
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Old July 11th, 2013, 05:35 AM   #9165
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End of the line for 2 metro stns
UNDERGROUND, ELEVATED STRUCTURES TAKE SHAPE ON KOYAMBEDU-ST THOMAS MT LINE







Quote:
One is deep underground and the other up in the sky but they’ll both be the first off the blocks. The underground metro rail station at Washermenpet and the elevated one at CMBT in Koyambedu will be the first of the 32 stations to be completed.

More than 75% of the work at CMBT station is done, while 55% has been completed at Washermenpet station, which is connected to Mannadi station through twin tunnels. The stations are part of the Koyambedu-St Thomas Mount line.

The elevated station in Koyambedu isn’t a grand structure; its white walls and clean lines lean towards utilitarian, while the Washermanpet station is sunk three levels below the surface in the middle of a densely-populated neighbourhood.

On Tuesday, workers were busy laying the granite floor and installing steel trusses at CMBT station. Metro rail officials were firming up plans to lay base slabs at the Washermenpet station. “Electrical and signalling work will begin soon,” said a senior official of Chennai Metro Rail Limited. He said 5% of the external plastering had to be done. Of eight escalators, four have been installed. Windows, doors and lifts will be installed soon.

Work is progressing rapidly as elevated stations on the Koyambedu-St Thomas Mount route are being readied to meet the year-end deadline. CMBT station will be the second station from Koyambedu and will be an intermodal hub, where people will be able to use metro, interstate buses and city buses. Metro rail is planning to start services by the middle of next year.

Metro rail has more time to complete underground stations, most of which have three levels — roof level, concourse level where commuters buy tickets, and base level where trains arrive. Stations at Washermenpet, Nehru Park and Shenoy Nagar will be completed first.

Work is progressing faster at Washermenpet than at the two other stations. Tonnes of soil have been excavated to create space for the station in the middle of a crowded neighbourhood. More than 50% of the work to build the roof level and concourse level has been completed.

“The station is being built using the top down method from roof to base. It will have four entrances. We are building diaphragm walls for two entrances near the station,” said a senior official.

1st underground line done

Metro rail completed its first underground line, between Washermenpet and Mannadi stations, on Tuesday. The 1.3km line has two parallel tunnels, the first of which was completed four months ago. The stretch is part of the Washermenpet-airport corridor via Anna Salai. The tunnel-boring machine installed 960 rings or tunnel segments, which act as roof and walls, and broke into the base level of Mannadi station on Tuesday evening. The machine completed more than 700m of tunnel in three and a half months. It had bored around 205m when the first tunnel was completed in March. The line travels under 750 buildings and is one of the few stretches where the tunnel does not travel under a main road. “Tunnelling began on October 1, 2012 from Washermenpet,” said a metro rail official. Tunnelling work is on at six locations. Eleven machines have bored more than 5,000m under Anna Salai and Poonamallee High Road The next stretch likely to be completed is between Nehru Park and Egmore, where 50% of the 948m line is done. The stations are part of Central-Koyambedu-St Thomas Mount line. Boring is on along the Shenoy Nagar-Tirumangalam stretch where 803m of the 2,797m tunnel is done.
http://epaper.timesofindia.com/Defau...&ViewMode=HTML
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Old July 11th, 2013, 05:40 AM   #9166
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Quote:
Originally Posted by krishnaswamy View Post
Chennai Metro Depot.. From Dinamalar.


Observe in the photograph they've starting fixing the insulators & wire holders (is that the right technical term?) to the OHE masts
Good to see that; One step closer to running the train

Also, test track is being laid on concrete bed. Anyone knows if they are going to lay tracks all over the depot on concrete beds instead of ballast? If yes, any particular reason? Its gonna cost a bomb & take more time if they use so much concrete!
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Old July 11th, 2013, 06:31 AM   #9167
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Quote:
Originally Posted by murlee View Post
End of the line for 2 metro stns
UNDERGROUND, ELEVATED STRUCTURES TAKE SHAPE ON KOYAMBEDU-ST THOMAS MT LINE









http://epaper.timesofindia.com/Defau...&ViewMode=HTML
As specified, all stations are highly utilitarian. With those whitewashed walls, they'll look like old government buildings.

They need not have come up with grand design. But they could've tried some basic designs (at least the exterior facade) to reflect the area around the station. For example, the Koyambedu station could've been shaped like a vegetable or a fruit, the CMBT station like a bus and the airport station in the shape of a plane with a wing and tail. These need not be very big and grand. But some innovative designs would've been nice.
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Old July 11th, 2013, 07:41 AM   #9168
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Let the structure get finished with all the exteriors. Then we will judge. I saw the renderings and it looked good. And from what CMRL has completed till now I have good hopes.
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Old July 11th, 2013, 08:41 AM   #9169
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Quote:
Originally Posted by singaporeIndian View Post
First of all, there is no change to the tower clock. Metro has occupied some portion of the bus stand; but, as a compensation, they have constructed additional bays before taking over. The bus stand was shifted not because of metro work; it was because of the flyover work. It seems the trend in Chennai is to just blame Metro work for everything.

My intention is not to hurt you; but, to just put things in perspective. Thanks.


Dear Friend,

I have a basic doubt. I would like to know whether both the tracks for upward and downward directions are accommodated in a single tubular tunnel. Or two tunnels are being dug for this purpose.
Thanks.
A.Nithiyanandam
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Old July 11th, 2013, 08:59 AM   #9170
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Quote:
Originally Posted by anithin View Post
Dear Friend,

I have a basic doubt. I would like to know whether both the tracks for upward and downward directions are accommodated in a single tubular tunnel. Or two tunnels are being dug for this purpose.
Thanks.
A.Nithiyanandam
There will be two sets of tubes separated by a distance (1 or 2m)... Think it will be clear to you from pics above... the tunnel dimensions are such that they can accommodate only one way... Is is this what you are asking ?
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Old July 11th, 2013, 09:48 AM   #9171
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Quote:
CMRL Update - Technicians install an escalator at the Metro rail station in Koyambedu. The station will be the first to be completed in the city and will be a milestone in promoting multi-modal transport!!
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Old July 11th, 2013, 08:19 PM   #9172
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I would disagree on that. The structural design need not represent anything. The vegetable shape / bus shape / plane shape are impractical designs in a limited space, impractical not because they can't be built, impractical because you want more people to use the station which will happen only in case of these geometrically shaped building. Also the stations need not be exhibits cos there ll be people who ll take pictures of it, blocking other people's exit and entrance to station. And it is very contagious, if one clicks a picture others will follow that, which is a headache for management on the whole. This is the same reason most of american airports keep the airport design to a bare minimum (but highly practical). They want airport just to be a transit point and not exactly a place to hangout.

But like you said, the buildings need not be white or fully concrete. They can bring in glass panels like in airport or software companies, which will bring in natural lighting to the station. Though initial costs will shoot up, the look and feel of the station will improve along with a 0.0001% reduction in electricity bill paid for lights (but it ll create a greenhouse effect and Air conditioning may affect). What say?

Quote:
Originally Posted by vijayvmail View Post
As specified, all stations are highly utilitarian. With those whitewashed walls, they'll look like old government buildings.

They need not have come up with grand design. But they could've tried some basic designs (at least the exterior facade) to reflect the area around the station. For example, the Koyambedu station could've been shaped like a vegetable or a fruit, the CMBT station like a bus and the airport station in the shape of a plane with a wing and tail. These need not be very big and grand. But some innovative designs would've been nice.
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Old July 11th, 2013, 08:26 PM   #9173
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I really wish that the Engine comes like this without wasting any time.



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Originally Posted by skysun View Post


Source: Indian Express
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Old July 12th, 2013, 04:38 PM   #9174
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CMRL Update

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Track work progress in Elevated Section as on 12-07-13.

1. Plinth concreting done for a length of 12709 m at Viaduct and track connected for a length of 9650 m between Koyambedu and Ekkatuthangal.

2. Track works at Depot started and about 1476 m of slab track concreting done in Test track, delivery track, workshop lines and other connecting lines.

3. Painting of Rails is in progress and nearly 6755m of rail painting has been completed at viaduct and Depot.

4. Welding of 1800 Nos. of rail joints has been completed.


CC Chennai Metro Rail
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Old July 13th, 2013, 03:41 AM   #9175
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Old July 13th, 2013, 10:47 AM   #9176
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Quote:
Originally Posted by karkal View Post
CMRL Update





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Painting of Rails means?
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Old July 13th, 2013, 11:42 AM   #9177
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Quote:
Originally Posted by pavan9741650414 View Post
Impact of Chennai Metro Rail on realty

Video ended with Mumbai
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Old July 13th, 2013, 11:08 PM   #9178
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Chennai metro over Kathipara image
http://www.dinamalar.com/
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Old July 14th, 2013, 06:20 AM   #9179
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Quote:
Originally Posted by phoenoix View Post
Video ended with Mumbai
Try this link.. The CMRL part begins at 39:22 in the video, in this link

http://social.ndtv.com/propertyshow/permalink/152946
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Old July 14th, 2013, 07:35 PM   #9180
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underground distance with both tbm is 36308 mts so its approximately 18 kms of underground tunnelling but the whole underground section is around 2 5 kms,can anyone clear my doubt
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