ABSTRACT
A dynamic centrifugal model test was performed to assess the seismic stability of foundation rocks and thereby demonstrate the viability of evaluating seismic stability using ground displacement. The test results demonstrated that the slip safety factor in the vibration step, where considerable residual displacement was observed during the model test, was less than one. In addition, conventional evaluation methods were found to be conservative. Furthermore, the progression of ductile failure was observed in the foundation-rock model although the slip safety factor was less than one. Based on the study results, procedures were proposed for evaluating seismic stability using ground displacement.
