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Old December 2nd, 2016, 08:35 PM   #581
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From the European Bank for Reconstruction and Development. More picture on their Chernobyl album (on the second page).



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Old December 3rd, 2016, 12:01 AM   #582
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Why this ARK doesn't cover whole concrete sarcophagus and how the concrete construction can be demolished if it's not fully covered by the new one?
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Old December 3rd, 2016, 02:45 AM   #583
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Why this ARK doesn't cover whole concrete sarcophagus and how the concrete construction can be demolished if it's not fully covered by the new one?
yes it does
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Old December 3rd, 2016, 03:53 PM   #584
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I made a timelapse from 2013 to today, with highlights on major milestones (see video description).

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Old December 3rd, 2016, 06:59 PM   #585
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Mammoet Completes Installation Of New Safe Confinement In Chernobyl

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Mammoet Completes Installation Of New Safe Confinement In Chernobyl.
Quote:
Today Mammoet finished skidding the New Safe Confinement over the reactor building of the Chernobyl Nuclear Power Plant in Ukraine. Clever engineering has helped install the arch-shaped construction over the destroyed reactor building. The confinement is the largest land-based movable structure in the world. The installation of the New Safe Confinement marks the successful conclusion of this highly prestigious construction project for Mammoet. Mammoet moved the New Safe Confinement at the request of Novarka – the joint venture responsible for the construction of the arch.
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THE CONFINEMENT IS THE LARGEST LAND-BASED MOVABLE STRUCTURE IN THE WORLD.
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Innovative skidding
Mammoet skidded the arch from its construction site to the reactor building using a skidding system that has been specially designed for the project. The innovative and award-winning skidding system is fully remote-controlled and consists of 116 skid shoes with an average capacity of 700 tons each. The skid shoes were completely synchronized on both sides of the structure to ensure a smooth and even operation. The tracks of this system were installed in a 33 degree angle to optimize the load transfer onto the foundations.

About the New Safe Confinement

The New Safe Confinement replaces an old shelter that was installed as an emergency measure to contain the radioactive materials in the destroyed unit shortly after the disaster in 1986. It provides a controlled and weatherproof environment where the solid radioactive remains of the destroyed unit can be held for the next 100 years. At 165 meters long, 260 meters wide and 110 meters tall, the arch could house the Statue of Liberty, or the Notre Dame Cathedral. With a weight of approximately 36,200 tons, the shelter is about three times as heavy as the Eiffel Tower.

Constructing the arch
Mammoet also conducted all the jack up and skidding operations during construction of the arch - a highly challenging task requiring new approaches in engineered heavy lifting and transport. The arch was built in two parts at a ‘special erection area’ – a decontaminated area at safe distance from the reactor. Each half of the arch was elevated during three jack-up operations, allowing crews to work at lower heights, increasing cost-effectiveness and improving operational safety. After construction of the first half was finished, it was skidded into a special parking area, clearing the area for the construction of the second half of the arch. Upon completion of the second half, the two parts were connected by skidding the first part towards the second part.

Joint venture
The arch was built by contractor Novarka, a joint venture between VINCI Construction Grand Projets and Bouygues Travaux Publics. The joint venture partners asked Mammoet to come up with a safe way to lift and skid the arch from the assembly site to its destination.

















Code:
http://www.mammoet.com/en/news/mammoet-completes-installation-of-new-safe-confinement-in-chernobyl/
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Old December 4th, 2016, 07:14 PM   #586
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How could people work on the other reactors for years after the accident?
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Old December 6th, 2016, 11:53 AM   #587
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Old December 7th, 2016, 09:28 PM   #588
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From Chernobyl World.



From ChNPP.



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How could people work on the other reactors for years after the accident?
A concrete wall was erected in the building between reactor 3 and 4. Radiation levels were acceptable on that side of the destroyed reactor.
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Old December 7th, 2016, 11:43 PM   #589
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I heard that the radiation levels were lower, even years ago (from the ones that were in the 80's), for the time passing. With this New Safe, maybe the whole zone can be secure for radiation in a razonable scale? Then, it could be repopulated, rigth?
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Old December 8th, 2016, 04:37 PM   #590
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You can read a very interesting article here
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Old December 9th, 2016, 11:57 AM   #591
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Update from ChNPP.












(link to album)
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Old December 10th, 2016, 11:32 AM   #592
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360° video from Vinci.

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Old December 10th, 2016, 03:52 PM   #593
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From chernobyl_world.














(link to album)
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Old December 10th, 2016, 09:04 PM   #594
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huge and gorgeous
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Old December 11th, 2016, 07:18 AM   #595
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About how long will it take to seal the New Safe Confinement to fully trap the radiation leaking out?
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Old December 11th, 2016, 11:12 AM   #596
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About how long will it take to seal the New Safe Confinement to fully trap the radiation leaking out?
I think it's 1 year.
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Old December 21st, 2016, 11:33 PM   #597
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There had better be a documentary about this structure when it's completed.
Funnily enough there is a documentary on BBC 4 right now about building the NSC, very interesting. It's called, Inside Chernobyl's Mega Tomb - www.bbc.co.uk/programmes
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Old December 22nd, 2016, 12:30 AM   #598
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Quote:
Originally Posted by Nitinol View Post

You can read a very interesting article here
Indeed, this article is very interesting. Some parts to highlight:

"As radiation levels fall with the natural decay of radionuclides (30 years marks the half life of Caesium 137, one of the major pollutants from the accident), humans, too, have returned. (...)

“As for radiation - look, all those Lyona’s and Ekaterina’s age who moved away have died, and all those who came back are still alive,” said Mr Struk, who works in the zone transporting radioactive material to storage.

“The authorities test our produce for radiation every autumn, they never find anything.”

Although increasingly frail, Leonid and Ekaterina have both exceeded Ukrainian life expectancy, currently 63 for men and 76 for women."

So, the radiation was low a year ago, and with this new safe it'll probably fall some more. I wish the whole area will be repopulated soon. Too bad for the wild animals that appeared in the zone, 'thought.
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Old December 22nd, 2016, 12:52 PM   #599
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Funnily enough there is a documentary on BBC 4 right now about building the NSC, very interesting. It's called, Inside Chernobyl's Mega Tomb - www.bbc.co.uk/programmes
Thanks for sharing, it was indeed very interesting. Here's an animation from that documentary showing the whole project in less than a minute. I think the decommission phase at the end is a little ambitious compared to the real plan.

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Old December 22nd, 2016, 01:09 PM   #600
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Update from ChNPP.






(link to album)
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