EFFECTS OF SPATIAL CHARACTERISTICS OF SLOPE PROPERTIES IN ROCKFALL SIMULATIONS USING DEM

Abstract

This study presents a numerical study on effects of spatial characteristics of slopes in rockfall simulations using DEM. A series of DEM simulations of a model experiment were performed under the different calcu- lation conditions and different spatial characteristics of slope, and effects of these factors were quantified. Based on the obtained results, it was found the accuracy of the mean values of input parameters is much more important than considering the spatial characteristics. However the conclusion is limited to simulated results obtained in this study, hence more detailed verification is necessary.