Over the building of the 4th unit of the Chernobyl nuclear power plant affected by the largest disaster in the history of nuclear energy, has built and commissioned a new protective structure. It was called the "New safe confinement". A lingering object is the sarcophagus "Shelter", which was erected immediately after the disaster in 1986. It was assumed that the old sarcophagus will last from 20 to 40 years.
The Main disadvantage of the old buildings were it leaks: the total area of the cracks reaches 1 thousand sq. m. the radiation Level under the old sarcophagus exceeds the lethal dose in 20 times.
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To Repair the old sarcophagus was impossible. In the end, it was decided to build a new protective dome.
The contract for the construction of the "new safe confinement" was signed in 2007. But the change of the object repeatedly delayed.
The Construction and installation of the new facility took 12 years. The total cost of the project amounted to more than 2 billion euros. The principal sum in the amount of 1.4 billion Euro was collected more than 40 countries of the European Union. Financial contribution in the amount of 55 million euros was made .
The New sarcophagus is the largest in the history of the mobile structure. Made in the form of an arch, with a height of 110 meters, width — 257 meters, and the length — 165 meters. The weight of the structure exceeds 36 000 tonnes.
Due to the large size of the arch had to be build in two parts and then joined them together. The installation of the facility was conducted using a special system, which consists of 224 hydraulic jacks and allows you to move the design to a distance of 60 cm in one cycle. To move design along, it took a few weeks.
Recently, inside of a new sarcophagus visited by foreign journalists. Looks like new construction inside, you can see in the video below.
By July of this year completed trial operation of a new facility. As indicated, the new sarcophagus should protect the alarm unit from the emission radiation of at least 100 years.
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