Recently, in the sea area of the State Power Investment Corporation's Jieyang Shenquan II 350 MW offshore wind power project, the single pile foundation of China's heaviest and largest wind turbine has completed the pile sinking operation. As an expert in the transportation of offshore wind power equipment, CNOOC Guangying is responsible for translating 10 offshore wind power single pile foundations from the construction site to the dock front for roll on/roll off loading onto the ship.
The maximum diameter of the 35 # pile in is 10.5 meters, with a length of 112.68 meters and a weight of about 2407.5 tons. It is currently the largest single pile in roll on/roll off transportation in China and is truly the "God Needle of the Sea". Faced with new challenges, the Zhonghai Guangying team persisted in moving forward and solved numerous difficulties. Due to the large size of the goods, there are many obstacles on the transportation route. The Guangying project team planned in advance the matching of the transportation saddle with the SPMT and barge loading positions, repeatedly surveyed the transportation route on site, and used SPMT turning modes such as oblique, forward swing, and backward swing to smoothly move to the front of the dock in 2 hours.
The roll on/roll off date is during the low tide season, and the loading window is tight. The Guangying team negotiated with the ship owner in advance about the roll on/roll off load adjustment plan, and used the SPMT's own itinerary to overcome the height difference between the barge and the dock surface. Finally, the roll on/roll off was successfully carried out to the barge's designated location in just one hour.
It is reported that the Shenquan II project is one of the first batch of offshore wind power grid connected projects in China, and also the largest offshore wind power project with single unit capacity in Guangdong Province. The total installed capacity of the project is 502 MW, and it is planned to install 16 sets of 8 MW and 34 sets of 11 MW wind turbines. A total of 10 piles have been sunk and 2 wind turbines have been lifted. The Shenquan II project is planned to be fully connected to the grid by the end of this year, with an annual power generation capacity of approximately 1.743 billion kilowatt hours, saving 527300 tons of standard coal consumption and reducing carbon dioxide emissions by approximately 1.4029 million tons.
