China's offshore wind energy resources are rich, and the offshore wind energy reserves are much higher than those in the offshore waters, and deep-sea wind power has broad development prospects. On June 13, the pile sinking of the steel pipe pile foundation of the booster station of the Fujian Offshore Offshore Wind Power Project was completed, marking the completion of the foundation of the booster station of the project and filling the industry's gap in the field of jacket foundation construction in the 40-meter-deep sea area.

The construction water area of the project is 45 meters deep. It is currently the world's largest offshore wind power project with suction pile steel structure foundation, and it is also the largest offshore wind power project with the heaviest weight and the highest height of the jacket.

The booster station under this construction includes two parts, an upper block and a lower jacket. The project department is responsible for the construction of the lower jacket foundation, including jacket settlement and steel pipe pile settlement. As the "heart" of the entire wind farm, the sea booster station is the "heart" of the entire wind farm. The wind energy generated by each wind turbine is transmitted to the booster station for boosting processing, and then transmitted to the land-based centralized control center through the submarine cable and integrated into the national grid. Important role.

The diameter of the steel pipe pile foundation under this construction is 3.8 meters, the pile length is 90.2 meters to 94.8 meters, and the pile weight is 511.8 tons to 520.2 tons. On the basis of the completion of the pre-jacket settlement, the project department overcame the difficulty of the abnormal shortage of ship resources, actively coordinated various available resources, and finally adopted the double-ship lifting construction technology to insert the steel pipe pile foundation.

On June 8, the lifting operation of the first pile of the steel pipe pile foundation of the booster station began. It took 13 hours to complete the piling operation of 4 steel pipe pile foundations. On June 10, the piling operation of the first pile of the steel pipe pile foundation of the booster station began. On June 13, after more than 15,000 hammerings, the piling operation of the 4 steel pipe piles was all finished. The foundation of the booster station was completed.

Keywords: engineering news, engineering construction, construction news, engineering construction, new energy

The geology, sea conditions, and weather conditions of the construction area are complex. The project team overcomes many disadvantages such as high requirements for underwater blind insertion positioning accuracy, high penetration difficulty, and large rock undulations, and successfully completed the foundation construction of the booster station before the arrival of strong winds. task. Editor/Sang Xiaomei