A simplified procedure for evaluating aseismic stability of slope subjected to earthquake shaking
in which the effect of time-history vertical acceleration on the yielding angular acceleration of sliding block is taken into account is presented. The fundamental feature of this procedure is the vertical acceleration time-histories. The numerical computations are performed by using the proposed method. It is shown that the computed sliding displacement for a given embankment
in which time-history vertical acceleration is properly considered
is more rational compared with the conventional computational results. Finally
a dynamic parameter analysis is performed and shown to successfully offer the rational references and scopes of evaluation for the aseismic design of embankment.