ABSTRACT

This chapter documents five rock fall events that encompass many commonly occurring rock fall conditions. These data are from both natural events where it has been possible to precisely map impact points and trajectories, and from carefully documented, full-scale rock fall tests. The documented events are for a variety of slope geometries and fall heights, and for slope materials comprising rock, colluvium, talus, and asphalt. For these sites, the velocity components in directions normal and parallel to the slope have been calculated from the impact coordinates, and the results have been used to calculate normal and tangential coefficients of restitution, and the energy losses.