At the construction site of Kursk NPP-2 in the engine room of unit No. 2, concreting of the foundation slab for the turbine unit has been completed

Another key event of the current year was completed at the construction site of the second stage of the Kursk NPP 

The foundation slab is located at the 17th mark - this is an important element of the entire turbine hall, being part of the turbine unit. The components of the turbine, the total mass of which is about 3,500 tons, will be mounted on it. The level of vibration generated during operation of large equipment is also taken into account. Therefore, the foundation must provide uniform load distribution. 

“When constructing a monolithic foundation, a modern vibration isolation system was used. It automatically minimizes the level of vibration and vibration during operation. The entire foundation consists of a lower slab, reinforced concrete columns and an upper foundation slab with a vibration isolation system - 89 vibration isolators weighing about 600 kilograms each,” commented Alexander Uvakin, director of the Kursk NPP. 

The dimensions of the slab are 95 by 61 meters. The thickness of the upper foundation slab varies from 4.6 to 5.3 meters in different parts. This range depends on the strength of the load applied. 

“The process of concreting the foundation took 36 hours and took place in several stages. At each stage, quality control of the work performed was performed. Considering that during operation the foundation will bear dynamic loads, and at the same time there is a high risk of concrete delamination, special requirements during the concreting process were paid to the quality of the concrete mixture. Self-compacting concrete mixture was used for concreting. The actual volume of concreting was 2,454 cubic meters. About 70 specialists from the contractor JSC Titan-2 were involved in the work. Within 28 days from the moment the mixture is laid, the concrete will gain its design strength,” explained Oleg Shperle, vice-president of Atomstroyexport JSC, project director for the construction of Kursk NPP-2. 

For reference: 

The Kursk NPP-2 is a replacement station that includes 2 units with a capacity of 1255 MW each. The construction of power units No. 1 and No. 2 of the replacement station Kursk NPP-2 is carried out within the framework of the Federal project “Design and construction of reference power units of nuclear power plants” of the Comprehensive program “Devel-opment of equip-ment, technologies and scientific research in the sphere of use of atomic energy in the Russian Federation for the period until 2024. 

The Russian nuclear industry has transformed from a piece manufacturer into a conveyor of nu-clear technologies, a “reactor factory,” which allows Russia to occupy a leading position in the world in the export of nuclear technologies. Today, the share of power generated by nuclear power plants in Russia’s energy balance is about 20%, and by 2045 it should reach 25%. This in-struction was given to the State Corporation Rosatom by the President of Rus-sia. 

The fuel and energy complex has been and remains one of the most important components of the Russian economy, influencing the development of other industries. The President and Government of the Russian Federation set goals for its development in order to strengthen the country’s production and technological potential and improve the quality of life of Rus-sian citizens. Rosatom and its enterprises take an active part in this work.

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