Extreme Construction: The New Chernobyl Shelter | FD Engineering

Extreme Construction: The New Chernobyl Shelter | FD Engineering
Construction of a Gigantic Stadium - A Billion Dollar Odyssee: • Construction of a Giga...
The new sarcophagus of Chernobyl was completed at the end of 2017. Two French companies won the contract financed by the European Bank of Reconstruction to seal off the deteriorating mountain of cement that had been poured over the second reactor of the Chernobyl plant in 1989. This massive engineering project was designed to contain the radiation still emanating from the disaster site and to prevent further environmental contamination. The structure, known as the New Safe Confinement, is one of the largest movable steel structures ever built, symbolizing a significant step towards mitigating the long-term impact of the catastrophic nuclear accident.
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“Engineering: the branch of science and technology concerned with the design, building and use of engines, machines and structures.” So says the Webster definition. Our newest Free Documentary family member Free Documentary - Engineering is all about engineering - and bringing our community the best documentaries on engineering.

[@godlugner5327]

Little spicy pill, covered by big building shield, covered by bigger building shield, and then covered by bigger building shield....... Them some spicy little rocks

[@maxdecleyn]

nature in chernobyl has been thriving ever since the event ...

[@netizencapet]

I wouldn't be walking anywhere remotely near the plant without full body mega hazmat radiation protection gear at all times.

[@tatsnneeps341]

And 20 yrs to design a small hanger on rails....😮😮😮 talk about reinventing the wheel whilst trousering vast amounts of cash in brown envelopes 😊

[@Nick-or5lr]

When all nuclear reactors are made out of concrete and it was sealed by concrete. Why is it so much safer with a steel thin wall structure going over it and removing the concrete much safer?

[@laura-ann.0726]

The Arch is there to contain, control, and limit the amount of radioactive dust that will inevitably be stirred up as the demolition of the old sarcophagus proceeds. The Arch will prevent wind from carrying this dust away from the plant site, so that it can't further contaminate the surrounding land, and it will prevent rain water from washing radioactive dust away from the site. Decommissioning what's left of the Unit 4 reactor will be the longest, most expensive clean-up of an industrial site ever, in the end likely costing at least 20 times more than to decommission obsolete "normal" commercial power reactors - "normal" meaning reactors that are still intact and have not suffered a catastrophic explosion. In a normal decommissioning, the reactor fuel, about 150 tons of uranium fuel rods in a 1,000 mWe-sized power plant, are removed and laid up in sealed casks for final disposal; the method used depending on what country we are talking about. Then there are several tens of tons of resin pellets used to demineralize the reactor coolant water. These plastic pellets are radioactive, but not nearly as much as the spent fuel itself. Finally, as the reactor containment and other auxiliary structures are demolished, there will be a few hundred tons of concrete contaminated by radioactive water that dripped onto it from leaks in pipes and valves. This concrete, and several hundred tons of pipes, valves, and other machinery that was in direct contact with reactor coolant, all has to be decontaminated and disposed of in special ways, but in a regular reactor decommissioning, these materials are all relatively easy to handle, and the techniques for safe decommissioning are well-established. In Chernobyl Unit 4's reactor explosion, huge amounts of extremely radioactive fuel, in a semi-molten state, was sprayed all over the inside of the reactor hall, contaminating all of the machinery, hundreds of miles of piping, wiring, ventilation ductwork, and millions of pounds of shattered concrete, plus a still unknown amount of soil, with high-level radioactive material. All of this has to be removed and buried somewhere, probably in deep geologic formations, and the total amount of high-level radioactive material that will need to be entombed, will be hundreds of times more than a "regular" reactor decommissioning will entail. It will probably take at least a century - 3 or 4 generations of workers - to finally and completely dig up and dispose of all of the remains of the Chernobyl Unit 4 reactor. And that's why the Arch is there, because it's going to take a very long time to clean up the mess.

[@testsite123-r2z]

A crazy bit of engineering in a proper hazardous part of the world. Does this actually fully secure the reactors?

[@jamesbieniek8290]

Nope. Just a place to work on clean up

[@jamesbieniek8290]

When i heard control room my heart sank. Lol

[@netizencapet]

The structure they choose is highly labor intensive & could rust. I would have insisted on a higher budget to allow for part construction at a greater distance.

[@slimhead666aw]

lets hope no 1 hits its then 🙏

[@olpkol]

Chornobyl not Chernobyl!!!

[@faalmaleine6409]

In my help Elektro business boss don't even things about xpolod .. all net safety space will be in oka

[@stephenMc-b1j]

If the Soviets had built a reinforced concrete dome over the reactor in the first place this would have never happened

[@G-A-Jaxon]

I’m sure no one has ever thought of this before, great contribution 👍

[@matthewmockus138]

Should have called u back in 86 tuff guy

[@bazra19]

So, we have all this radioactive material in one place, now lets dismantle it and spread it around the country. This does not make sense to me. What happened to all the Vehicle parts ( Engines, wheels, gear-boxes, and such like ( take a look at all the scrap yards there so much has been stolen)) and shipped out to other places?

[@chuckd5819]

let the smart people figure it out armchair quarterback

[@anml1969]

Trump is weird.

[@ehsanchishti8129]

Please Pray for me ! May God accept and fufill my prayers and Wishes

[@tatsnneeps341]

Why, wtf you been up to now ?? 😮😮