GEOTECHNICAL SIMULATION TEST FOR THE NIKAWA LANDSLIDE INDUCED BY JANUARY 17,1995 HYOGOKEN-NAMBU EARTHQUAKE

摘要

By employing an undrained cyclic loading ring-shear apparatus, a series of tests to reproduce the dynamic behavior of the Nikawa landslide induced by the January 17,1995 Hyogoken-Nambu earthquake, is conducted. The test sam- ple is Osaka-group coarse sandy soil taken from the landslide. The initial stress condition acting on a soil element in the sliding surface is applied to the sample. Based on the seismic records monitored at the JR Takarazuka Station, the input seismic wave is synthesized to reproduce the seismic stress acting on the sliding surface.