| With the prosperous development of maritime transport, many ship accidents are gradually emerged. Ship aground accidents have being occurred sometimes. Because the manipulation of the ship refloating is not correct, it brought enormous economic losses and environment pollution, or did not finish sail schedule. In order to ensure rapidly completion of refloating work, especially the damaged aground ship, the paper study the refloating methods of damaged aground ship.It is rather particular to refloat manipulation the aground damaged ship. Water will inter ship’s hold due to ship breakage, so ship refloating has to consider more factors. The refloating programme is a systematic process that includes ship’s fixation techniques, ship floating methods and the control of ship floating state and stability and many precautions in this process. To study fixation techniques is to fix ship to avoid ship moving or deflexion. Through the study of refloating method of ship grounding and analysis and comparison of each refloating method and scope of application, we can make quick response and contingency plans, which finally make the right choice, accelerate the ship refloating manipulation process and reduce the period of the manipulation and economic losses or marine environment pollution. The corresponding calculation method is provided for the floating state and stability of the ship after the grounding, which guarantees that the floating ship can meet the requirements of the towing or navigation. Finally, through the actual case analysis and calculation, to verify the feasibility of the selection of the program, and the entire manipulation of the program is analyzed and summarized. The research on the grounding of the damaged ship is of great practical value and practical significance, which provides the reference and theoretical basis for the floating manipulation after the ship grounding. |