Abstract: The phreatic line is higher at upstream-type tailings dam and most of dams are in saturated state, thus easily leading to flow slide destruction under earthquake.Though analyzing the earthquake disasters of tailings dam, the mechanism of flow slide destroy induced by seismic liquefaction are studied, and the four flow slide destroy models are proposed from aspects of base destroy, initial dam destroy, sub-dam destroy and inside flow destroy.Then the stabilizing measures for liquefaction flow slide of tailings dam and their consolidated effect are discussed.It plays a significant role in guiding the anti-seismic design of tailings dam, improving the level of safety management and reducing the disaster loss.

Key words: Tailings dam, Liquefaction, Flow slide destruction, Stability, Earthquake