Spent fuel rack, nuclear power plant, and spent fuel rack operation method

摘要

PROBLEM TO BE SOLVED: To provide a spent fuel rack, a nuclear power plant, and an operation method of the spent fuel rack, which can reduce earthquake response even to large earthquake input so as to increase reliability of earthquake resistance.SOLUTION: A dynamic vibration absorber 4 is installed in each cell 8 of a spent fuel rack 1 in order to reduce earthquake responce of the spent fuel rack 1 installed in a spent fuel pool 2. The dynamic vibration absorber 4 is a cantilever type in order to be able to be inserted into and pulled out from the arbitrary cell 8 of the spent fuel rack 1.SELECTED DRAWING: Figure 2