Loading/unloading method, a crane rotating apparatus, and a hoisting apparatus

摘要

A method of placing cranes 1 and 2 with a reactor pressure vessel 4 (load) on a turntable 41 in the solid ground 57, turning the turntable 41 together with the cranes 1 and 2, and thus moving the reactor pressure vessel 4 to a selected position. Transferring an object by turning around a crane with a load in a narrow area without operating the crane.