Abstract
The seismic stability of slopes has been the hot spot issues of geological disaster study, and especially after the 5.12 Wenchuan earthquake, it has become the study focus of specialists and scholars. For slope seismic stability analysis, the current method includes pseudo-static method, sliding block analysis method, and numerical simulation, in which pseudo-static method only takes consideration of the influence of PGA on slope stability, but not the influence of frequency and duration of seismic waves; neither sliding block analysis method can solve the instant stability coefficient of slopes under seismic loading effects, nor can it accurately evaluate the seismic stability in real engineering, so it is not convenient to use; although numerical simulation can carry out time–frequency analysis of rock slope stability under seismic effects, the operation is complex, especially for high and steep slopes with large difference in rock layer distribution.
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