Investigations into Seismic Failure of High Arch Dam Based on Shaking Table Experiments and Numerical Simulation

Abstract eng:
A series of shaking table tests was performed on several small-scaled models of an arch dam of 210 m in height using a suitable model material. The purpose of the tests was to assess the possible failure mechanisms of medium to high arch dams and its behaviors under strong earthquakes. The studies on the shape, position, occurrence conditions and influence factors of dynamic cracks in dam body have been conducted in combination with shaking model test and numerical analysis using an elastic damage constitutive model. The results of the numerical simulations indicate final failures of model dam calculated using the double lines damage model of residual strength are in agreement with the test results. The cracks normally appeared near the top of arch crown and one-quarter points of both sides

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