Dynamic performance of cohesive slope under seismic loading

The main purpose of this study is to design and analyze a cohesive slope under dynamic loading condition and examine the relations between different parameters such as slope geometry, yield acceleration, and displacement. For estimating the permanent slope displacement, a code has been developed and yield acceleration was evaluated for different slope angles with varying cohesion. The code can be used to find out the critical slip circle of a cohesive embankment. It is possible to find out the displacement of cohesive embankment due to a ground motion using Newark method. However, in this study it has been observed that the permanent slope displacement decreases with the increase in yield acceleration and vice versa. Further, yield acceleration increases for higher cohesion property of materials. Another important observation is that, the yield acceleration shows a higher value at a lower slope angle. The estimated yield acceleration was compared with the Newmark's equation and found a good agreement with the present results. This study would attract the researchers and field engineers to know the dynamic behaviour of cohesive materials for its effective and wide engineering application.