Resumen
This study is based on the successful salvage of the Korean ?Sewol? ferry in 2017. The approach delineated in the manuscript?the arrangement of two lifting barges in symmetrical disposition to retrieve a large-tonnage shipwreck?is increasingly being employed. The manuscript expounds the dynamic response of the salvage system and the technique employed to assess the safety of the system. Moreover, the manuscript articulates technical details, such as selecting the appropriate wave direction interval before initiating the salvage operation, selecting suitable intership connecting cables, and analyzing potential risks arising after the failure of the lifting cables. These elucidations can proffer insights to salvage engineers for optimizing design schemes.