| 摘要 |
PROBLEM TO BE SOLVED: To provide a spent fuel storage rack for preventing locking from occurring when an earthquake occurs to stabilize behaviors.SOLUTION: In the spent fuel storage rack which is provided with a rack body part comprising a base plate 11 and a cell storage part 12 for storing many rack cells 14 where fuel assemblies 20 are stored and a plurality of rack leg parts 13 for supporting the rack body part and is arranged in a storage pit, the rack body part is supported so that the rack leg parts 13 are slidable with respect to the floor surface of the storage pit, at least one fuel assembly 20 is supported by the rack body part via a lower part elastic member 40 and an upper part elastic member 50 having elasticity in the vertical direction, and rigidity of the lower part elastic member 40 and the upper part elastic member 50 matches a specific vibration number by locking of the rack body. |
