Abstract
According to the both development of mechanics and electronics, the earthquake simulators for geotechnical model are used in centrifuge to take the place of that in the gravity field. But the similarity rule of a seismic behavior has been rarely investigated. This paper describes a series of shaking table tests carried out to compare the different scale model which is an embankment on a loose saturated sand. The sizes of reduced scale were the 1/3, 1/5, 1/10 in the gravity field and the 1/20 in the centrifuge. A good agreement was obtained in the dynamic behavior of excess pore pressures, acceleration response and surface settlement following the similarity rule respectively.