Abstract: This paper discusses the surge hazards induced by the high velocity landslides into the reservoir pool. Several formulas, such as, empirical formulas proposed by IWHR and Pan Jiazheng, have been applied in the surge height prediction. The initial surge height, surge at the opposite bank and at various locations from the sliding under the proposed landslide with different pool water levels are predicted and a parametric study has been performed to find out the most sensitive factors on the surge. The following conclusions are obtained: The impact of pool water level changes on the sliding body velocity into the water, initial surge height and height at the opposite bank is not significant; the impact of velocity of the sliding body into the water on the surge height is significant; under different pool water levels, the distance from the sliding location has minimal impact on the surge height. The inclination of the sliding body and the internal friction angle on the surge height is large.

Key words: Landslides, Height of Surge, Influence Factors, Sensitivity Analysis