The present invention relates to a flood immersion frame, in the raft immersion frame for water to be installed on the bottom surface of the bottom adjacent area, each is installed in the standing state on the bottom surface, and adjacent to the bottom bolt pair A coupling bolt separated from the adjacent bolt pair by a predetermined interval perpendicular to the tangential direction of the lower eye and separately installed along the lower eye to form a jaw having a pair of remote bolts disposed in line with the adjacent bolt pair; A longitudinal member that is laminated to each of the pairs of the coupling bolts with a predetermined separation space along the longitudinal direction of the coupling bolts on the adjacent bolt pairs and the remote bolt pairs; A remote that connects the lower side coupling bolt of the adjacent bolt pair that constitutes one of the pairs to the adjacent pair of coupling bolts and the storage side coupling bolt of the adjacent bolt pair that constitutes the other of the pairs and constitutes one of the pairs It characterized in that it comprises a cross member which is respectively coupled to the coupling bolt to connect the bottom coupling bolt of the bolt pair and the storage coupling bolt of the remote bolt pair constituting the other pair of bolts. This reduces the number of coupling bolts and simplifies the structure, thereby improving workability.
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