Abstract: For wind power development in the shallow-overburden offshore area of Dalian， the suction bucket jacket foundation form is adopted， and the suction bucket offshore construction in special sea areas is sorted out and analyzed. Through the implementation of the project， research has been conducted on the key issues of the installation of suction bucket jacket wind turbine foundations in shallow water areas. Key issues such as the feasibility analysis of suction bucket construction penetration， construction measurement control， and negative pressure sinking and penetration are analyzed and studied one by one， forming replicable construction technology. Through the actual offshore construction of the target wind turbine position， the installation process is elaborated in detail， the technical analysis methods and results are evaluated， and the implementation measures for the construction technical characteristics and control requirements are described， providing a technical reference for offshore installation of similar wind-turbine foundations.

Key words: suction bucket jacket, wind turbine foundation, offshore installation, construction accuracy