On May 17, 2022, the CNOOC Yancheng LNG project completed the hoisting of 6 vaults of 270,000 cubic meters of LNG storage tanks. Top module hoisting operation.
The span of a single vault of the 270,000-cubic-meter storage tank is nearly 100 meters and weighs more than 800 tons. It consists of a central ring and 24 large and small vault modules. The dome module is shaped like a cut watermelon rind, with a maximum span of 46 meters and a single piece weighing 33 tons.
Yuan Bin, Deputy General Manager of CNOOC Yancheng Green Energy Port Project: Through precise calculations, simulation deductions and field tests, the project team divides the surface of each vault module into 3 groups of 8 hanging points reasonably arranged on the upper, middle and lower sides. Before lifting, by adjusting the length of 8 steel wire ropes, the included angle of each group of steel wire ropes is kept fixed, so as to ensure that the deformation of the vault module is controlled within 5% during the lifting process, which ensures the construction quality.Editor/Ma Xue
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