And that for the inner is lifting only under the water uplift force.The results obtained from the proposed formulas were compared with the factual engineering in the Yangtze estuary deepwater channel.

• 就排体的不同部位而言，边缘排体在水流拖曳力及上举力共同作用下发生滚动失稳，内部排体则仅在水流上举力作用下发生漂浮失稳。