Importance of study of creep sliding mechanism to prevention and treatment of reservoir landslide

Creep sliding mechanism of the reservoir landslide and creepage property of the sliding-zone soil are theoretically studied from the viewpoint of dynamics. The results show that the increase and decrease of the shearing stress ratio for the sliding plane of a reservoir landslide and the viscosity coefficient of the soil in the sliding zone are the essential conditions which can define whether the creep sliding of the landslide will turn to a violent sliding. It has proved that the slide acceleration test by simulating the operational conditions of the reservoir with a representative sliding block under appropriate environmental conditions is a reliable approach to verify the creep sliding mechanism of reservoir landslide and an effective method to treat the landslide and eliminate in advance the danger of landslide surge.