Time-frequency analysis method of acceleration amplification along hillslope

摘要

Based on elastic wave theory, the time-frequency analysis method of acceleration amplification along the hill-slope is derived by using Hilbert-Huang transform combined with modal analysis method and orthogonal theory. Its reasonability is verified by the results of shaking table test and numerical simulation. This method can not only analyse the effect of peak ground acceleration, frequency and duration of seismic waves on acceleration amplification along hillslope, but also illustrate whiplash effect of hill theoretically.