Abstract
The paper reports the results of centrifuge shaking table tests to study the stability of embankment on liquefiable sand layers during the earthquakes. On basis of the results of 1/37.5 and 1/50 scaled models, the residual deformation of embankments subjected to both sinusoidal wave and earthquake motion was studied. The conclusions obtained from this study are as follows: (1) The residual deformations of different scaled model converted to prototype scale were well consistent. (2) Liquefaction of base ground considerably affected the stability of embankments. The soil mass enclosed by the circular arc did not behave like a rigid body, but like a flow type failure. (3) A method of circular arc analysis taking into account the seismic force and the excess pore pressure gave a reasonable explanation of the test results.
