2025 Volume 81 Issue 13 Article ID: 24-13470
In this study, the effects of the characteristics of pulse-like seismic motion observed near faults on the permanent displacement of slope shoulders were investigated using two-dimensional elasto-plastic finite element analysis. Ricker wavelet was used as a model wave to characterize the pulse-like seismic motion for directivity pulses, and a sine wave of one cycle was used for fling steps, and these were input as horizontal acceleration on the slope. The effects of the direction of action of Ricker wavelet and sine wave of one cycle on the permanent displacement of the slope shoulder were compared by aligning the maximum amplitude. The results showed that the maximum value was obtained when a sine wave with one cycle was input so that the inertial force acted laterally towards the lower ground in the latter half of the cycle. In addition, the effect of the direction of input on the permanent displacement of the slope shoulder was greater when the pulse frequency was low for the Ricker wavelet and high for the sine wave with one cycle.
