Seabed soil body washout test device and method based on drum centrifuge

The invention provides a seabed soil body washout test device and method based on a drum centrifuge, and the device is characterized in that a current generator is arranged on the cylinder wall of the drum centrifuge, and generates water flow required by a test; the rectifier is located on the outer side of the flow generator and rectifies the generated water flow. The two water flow stabilizers are located on the two sides of the rectifier and distributed along the barrel wall of the drum type centrifugal machine. The seabed soil body containing chamber is located between the two water flow stabilizers and used for containing seabed soil bodies for testing. The water stopping part is located on the inner side of the drum centrifuge and prevents water flow from entering the centrifuge. The rail car translates along the water stop part slide rail and is provided with a telescopic mechanical arm for fixing a measuring instrument; a centrifugal force is generated by using a drum centrifuge, and the in-situ stres