20.04.2016
The Leningrad NPP Information and Public Relations Administration
The Leningrad NPP first power block’s reactor external containment has been concreted
One of the key milestones of the Leningrad NPP replacement capacities’ construction has been achieved, with the reactor external containment being fully concreted. During the last stage of works, the constructions laid around 118 cubic meters of concrete using spud vibrators to condense it and special trowels to even.
“Pursuant to the technology, we concreted the top of the dome based on an off-shuttering method using special concrete resistant against considerable loads”, Pavel Mozerov, the Leningrad NPP construction executive director on behalf of JSC Metrostroy, commented on the outcomes. “That’s why we used a pillar crane instead of concrete booms to deliver concrete in a special reservoir from the zero point up to the +70,200 point. We worked without any breaks for 24 hours”.
Taking into account the strict requirements towards the concrete parameters, the Leningrad NPP specialists have paid close attention to quality assurance to ensure the specifications of the concrete delivered for the dome of the reactor match the expected ones.
“Without any doubt, this milestone is extremely important for us, as it marks the end of the construction activities at the reactor’s solid constructions”, summarized Kirill Mazurin, the Leningrad NPP head of technical supervision department. “In March 2015 we have erected the reactor inner containment up to the point of +68.500, and in just a year the last concrete layer was set at the external containment at the point of +70.200. As of now, we can say that the reactor building has reached its designed sizes. Now the only thing still left for the JSC Metrostroy specialists is to install a banister with the total volume of 40 square meters around the perimeter of the building and to concrete the mounting holes after the pipelines’ and the drives’ cordage at the point of +59,850”.
The inner and the external containments are both reliable construction structures designed to protect a reactor from any external effects and a part of the system to ensure the power block does not affect the environment.
The Leningrad NPP is an affiliate company for Rosenergoatom Concern OJSC. The plant is based in the city of Sosnovy Bor, 40 km to the west from Saint Petersburg at the Gulf of Finland shore. The Leningrad NPP is the first Russian nuclear power plant having RBMK-1000 reactors (uranium-graphite channel-type thermal neutron reactors). The NPP exploits 4 power blocks with the electric capacity of 1000 megawatt each. Also, pursuant to the NPP-2006 project, 1,2 VVER-1200 power blocks included into The State Atomic Energy Corporation ROSATOM long-term plan are being constructed. Rosenergoatom Concern OJSC is the owner and developer of the project. Holding TITAN-2 is the primary contractor. ATOMPROEKT is the general designer.
The up-to-date information on the nuclear environment close to the Russian NOOs and other nuclear objects is available at www.russianatom.ru
The Leningrad NPP Information and Public Relations Administration.
“Pursuant to the technology, we concreted the top of the dome based on an off-shuttering method using special concrete resistant against considerable loads”, Pavel Mozerov, the Leningrad NPP construction executive director on behalf of JSC Metrostroy, commented on the outcomes. “That’s why we used a pillar crane instead of concrete booms to deliver concrete in a special reservoir from the zero point up to the +70,200 point. We worked without any breaks for 24 hours”.
Taking into account the strict requirements towards the concrete parameters, the Leningrad NPP specialists have paid close attention to quality assurance to ensure the specifications of the concrete delivered for the dome of the reactor match the expected ones.
“Without any doubt, this milestone is extremely important for us, as it marks the end of the construction activities at the reactor’s solid constructions”, summarized Kirill Mazurin, the Leningrad NPP head of technical supervision department. “In March 2015 we have erected the reactor inner containment up to the point of +68.500, and in just a year the last concrete layer was set at the external containment at the point of +70.200. As of now, we can say that the reactor building has reached its designed sizes. Now the only thing still left for the JSC Metrostroy specialists is to install a banister with the total volume of 40 square meters around the perimeter of the building and to concrete the mounting holes after the pipelines’ and the drives’ cordage at the point of +59,850”.
The inner and the external containments are both reliable construction structures designed to protect a reactor from any external effects and a part of the system to ensure the power block does not affect the environment.
The Leningrad NPP is an affiliate company for Rosenergoatom Concern OJSC. The plant is based in the city of Sosnovy Bor, 40 km to the west from Saint Petersburg at the Gulf of Finland shore. The Leningrad NPP is the first Russian nuclear power plant having RBMK-1000 reactors (uranium-graphite channel-type thermal neutron reactors). The NPP exploits 4 power blocks with the electric capacity of 1000 megawatt each. Also, pursuant to the NPP-2006 project, 1,2 VVER-1200 power blocks included into The State Atomic Energy Corporation ROSATOM long-term plan are being constructed. Rosenergoatom Concern OJSC is the owner and developer of the project. Holding TITAN-2 is the primary contractor. ATOMPROEKT is the general designer.
The up-to-date information on the nuclear environment close to the Russian NOOs and other nuclear objects is available at www.russianatom.ru
The Leningrad NPP Information and Public Relations Administration.
career
Innovations
Projects
INTERNATIONAL BUSINESS