Numerical Investigation on the Correspondence between the Damping and Coefficient of Restitution (COR) in Rockfall Movement

The rockfall process is characterized by bounces of a block on the ground. coefficient restitution (COR), which indicates degree energy dissipation, has significant effect trajectory. 3-dimensional Distinct Element Code (3DEC) an effective tool to study trajectory, and damping can reflect COR in numerical modeling. However, relationship between not understood. A field test numerically modelled investigate correspondence COR. series damping–COR correspondences are obtained compared with its previous simulation verify rationality correspondences. Then, adopted typical rockslide Yunnan province, China. results show that proposed method good agreement practical engineering. This provides new for predicting