4.Localization of the accident center 27.04.1986 17:30 – 06.05.1986 13:00
Solutions
Proposal to localize the source of the accident, by isolating the exposed reactor core, from the external environment and its partial cooling by throwing sand from the air with the help of helicopters into the mine of the emergency reactor, clays, lead was proposed by a member of the government commission AT. Legasov. Based on the prevailing situation and the justifications presented, proposed method, the proposal was supported by the chairman of the government commission B. Shcherbina and members of the commission.
Sand delivery, clays, lead to the place of loading and their loading into helicopters was entrusted to the head of the Chernobyl AT. Kizime. For this purpose, the 1st Operational Headquarters of the ChNPP Control Department was organized under the leadership of V.. Kizima, organizational work to implement the decisions of the headquarters was carried out by the dispatcher engineer of the Chernobyl control system A Varivoda. AND. Delivery and disposal of sand, clays, lead into the shaft of the emergency reactor was entrusted to a helicopter squadron under the command of Major General n. Antoshkin.
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1. At the fourth unit of the Chernobyl nuclear power plant (CHAES)- as a result of the experiment, with regulations, different from operational, started on 25.04.1986 with an RBMK-1000 type reactor, at 01.23, 26.04.86g. there was an accident. extraction: "One of the reports, prepared for the IAEA by a group of experts led by Academician AT. Legasov». (AT. Legasov First Deputy. Director of the Institute of Atomic Energy named after. Kurchatov, member of the first government commission to eliminate the accident at 4 unit of the Chernobyl nuclear power plant) "Early Saturday morning 26 April 1986. at 1 hour 23 min. accident occurred at the fourth block of the Chernobyl nuclear power plant, destined to have global implications. After a few seconds (40sec.) after 1h. 23 min. (by Moscow time) two, following one after another, the explosion tore off the roof from the building of the reactor of the 4th unit. Building structures were thrown through the gaps formed, graphite and other fragments, reactor core exposed. Smoke and steam, with a large amount of radioactive products of the reactor core, formed a "hot" cloud, raised to a height of 2? kilometers, which then passed over the western regions of the USSR in the direction of Eastern and Western Europe and, lower density, over the entire northern hemisphere. Heavier fragments and particles fell near the station site, and light particles carried west and north of the station, where they fell in the adjacent areas and in the neighboring republics of Ukraine, Belarus and Russia ". 2. By 2 May 1986. blowing southwest wind, so it's monday morning 28 April, the first wave of radioactivity reached Sweden and was detected by workers at the local nuclear power plant. And on the same day, the measurement results were published in their press indicating the relative concentration of isotopes. With 12.00. 2 May 1986. from the Chernobyl nuclear power plant began to blow a northwest wind from 16.30. 27.05.86d to 02.05.86. the active zone of the damaged reactor by this time was closed by throwing clay from the air, sand and lead with the help of helicopters under the command of a major general n. Antoshkin, thus, from the beginning of the accident at the Chernobyl nuclear power plant, the direction of the wind and the localization of the source of the accident saved the city of Kiev, the capital of Ukraine, from pollution and evacuation,(Distance from Chernobyl to Kyiv in a straight line 125km*), confirmation of this is the pollution zone in the direction of Belarus, which stretched for 140 km. west of Chernobyl. (* to the CMU and the Verkhovna Rada - 110 km) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. From 27.04.86. in the building of the Pripyat Executive Committee (g. Pripyat st. Kurchatov) three headquarters were organized to eliminate the accident at the Chernobyl nuclear power plant: First, Headquarters of the Government Commission, worked during daylight hours, headquarters was in the office of the secretary of the city party committee, on 3 floor, from 27.04.86. to 29.04.86. The government commission was headed by B.E. Shcherbina, Deputy Chairman of the Council of Ministers of the USSR., the main consultant from science was a member of the government commission academician AT. Legasov. With 29.04.86. government commission relocated to. Chernobyl in the building of the city party committee. Second, round-the-clock headquarters of the Construction Department of the Chernobyl nuclear power plant (WATER CHAES), was in the building of the city executive committee (g. Pripyat street Kurchatov) in the office of the secretary of the committee of the Komsomol, on 1 floor, from 27.04.86. by 12.00. 30.04.86g. The headquarters was headed by the head of the Chernobyl Administration Kizima V.T.., social hero. labor of the USSR, Deputy of the Verkhovna Rada of the Ukrainian SSR. Organizational work on the implementation of the decisions of the headquarters was carried out by the engineer dispatcher of the Chernobyl control system Varivoda AI. The headquarters provided the organization and control of loading and delivery of sand to helipads, clays, lead and loading them into helicopters. This work was carried out by engineering and technical workers of the ChNPP Control Department and subcontractors, loading robots lead on st. Yanov was carried out by a company of conscripts, Military unit stationed in Chernobyl 2, under the control of the headquarters of the US Chernobyl NPP. Everyone worked on 12 and more hours per day, and some workers for several days in a row. WITH 12.30. 30.04.86g. by 13.00. 06.05.86g. The headquarters of the US Chernobyl NPP continued its work in. Chernobyl at the unfinished plant "Generator", which began to be built before the accident "; WITH 29 April, the population of the city was involved in loading operations. Chernobyl and other categories of people from organizations and the army. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The third headquarters of the Chernobyl UTEM, worked during daylight hours, was across the corridor opposite the headquarters of the US Chernobyl NPP, on 1 floor of the city committee building, from 27.04.86. by 11.00. 30.04.86g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.30, 27.04.86 g. on the first helipads. Helicopters are being loaded in Pripyat, from which sand is thrown, clay and lead into the shaft of a damaged reactor from a height of two hundred to three hundred meters, and from 29.04.86. helicopters are loaded from loading helipads 1, 2, 3, 4 airfield in the area. Leleva near Chernobyl. The abandonment of the shaft of the emergency reactor was carried out with 16.30 27.04.86g. to 29.04.86. 13.00, 06.05.86g. This period was called the localization of the source of the accident of the fourth power unit of the Chernobyl nuclear power plant.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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