Study of Bottom-sitting Adsorption Tests of Submarine Structures and the Influencing Factors

Objectives In order to investigate the influencing factors of bottom-sitting adsorption as well as to forecast bottom-sitting adsorption in a rational way. Methods A series of marine structure base models were designed to build a simple and easy-to-use model test setup to simulate the process of structure bottom lifting in the laboratory, and to formulate a test scheme for structure bottom lifting under different influencing parameters. A special loading device was used to quantitatively measure the adsorption force of bottom lifting, to investigate the influence of soil type, bottom time, bottom weight, bottom area and base material on the adsorption force of bottom lifting, and to analyze the mechanism of its action. Results The study showed that the adsorption force was positively