INFLUENCE OF INPUT FREQUENCY ON SLOPE DISPLACEMENT VERSUS EARTHQUAKE ENERGY RELATIONSHIP

Abstract

Earthquake-induced slope stability has been evaluated by force-equilibrium of soil mass. But this method can't evaluate how large the deformation will develop and how far the effect reaches down-slope. The present study aims the development of evaluation method for residual displacement of slope during earthquakes by energy approach. We conducted an innovative model test on a shake table, in which energy balance in sliding slopes is measured. From these experimental results, a correlation between slope displacement and earthquake energy was obtained for variable input frequency indicating that the displacement can be uniquely correlated to the input energy the difference in input frequency.