Slope stability analysis due to extreme precipitation

Abstract

Slope stability analysis due to extreme weather, i.e. precipitation is an interesting topic to investigate in the high rainfall region. This paper aims to investigate the effect of extreme rainfall on slope stability. A study case at a location inside the highly vulnerable formation in Aceh-Indonesia to failure, which is Tutut Formation, was carried out. Soil samples at the investigated site were collected and tested for further examination. The geometry of the landslide location was measured using Theodolite. Both the soil and surface geometry data were used to develop a computer model from which the slope failure was justified. A failure mechanism due to extreme precipitation is suggested. This finding is consistent with the field observations.