ABSTRACT
Chapter 11 discusses the stability of rock slopes subject to seismic ground motions. Information is provided on the relative abundance of landslide types, and the susceptibility of slopes to ground motions, as well as earthquake return periods and response spectra. A description is provided of the pseudo-static analysis stability analysis method to calculate the factor of safety using seismic coefficients related to the peak ground acceleration, slope height and slope materials. Also described is the Newmark method to calculate the displacement of the slope related to the ratio of the maximum ground acceleration to the yield acceleration. The Arias intensity of ground motions is discussed, and also how this can be used to calculate approximate slope displacement.
