| 摘要 |
Disclosed are a structure and a method for extracting a heavy body. The structure for extracting the heavy body according to the present invention, to extract the heavy body positioned between a process deck and an upper deck, comprises: a hatch arranged in the upper deck corresponding to a position of the heavy body; a gantry arranged in the upper deck corresponding to a position of the hatch; a hoist installed in the gantry for hoisting the heavy body; and a trolley installed in the upper deck for moving the hoisted heavy body. |
