On October 20, the first batch of three four-pile jacket structures for the Huadian Yangjiang Sanshan Island project were successfully completed and passed acceptance at the company’s Zhoushan base. Each of these jacket structures weighs a total of 1,900 tons and stands 75.95 meters tall, setting a new company record for both weight and height in this product category and marking significant progress in the company’s capability to manufacture large-scale deepwater wind power equipment.

Facing the technical challenges during project implementation, the project team demonstrated professional problem-solving capabilities. During the overall assembly and lifting phase, due to limitations in site equipment, a 1,600-ton crawler crane had to be used to lift the large-scale structure. Among these, the transition section was prone to rotation when lifted by a single hook, posing risks to precision control and safety. To address this, the technical team innovatively adopted a dual-safety solution featuring 'steel wire rope traction plus forklift stabilization.' By symmetrically arranging traction cables and coordinating real-time adjustments with ground-based forklifts, they achieved precise control throughout the lifting process.

Implementing lean improvements and optimizing processes and work methods is a key breakthrough for enhancing project efficiency. By streamlining traditional workflows, the project team has shifted from performing slab lifting and temporary support installation in separate steps to conducting them simultaneously. Utilizing slab forks directly creates stable support, which not only shortens the time required for each segment’s closure by 5% but also reduces the duration that components remain suspended. This approach ensures safety while significantly boosting overall operational efficiency.

Going forward, the company will continue to focus on key aspects such as jacket precision calibration and anti-corrosion treatment, further deepen the application of vertical closure technology for large-scale jackets, and strive to build a flagship demonstration project for deepwater wind power jackets, providing solid support for expanding the offshore wind power equipment market and promoting high-quality development.