This project paper explores the phenomenon of excavations, the various methods of deep
excavations and slope stability analysis of the resulting cut slopes. The methods of slope stability
analysis have been discussed and the most suitable one chosen for analysis and the determination
of factors of safety against failure. The routine procedure includes comparing a number of
admissible surfaces selected according to the site profile, and then modeling the site conditions
using the GeoStudio software, which offers a mathematically reliable search for the factors of
safety of the associated critical slip surfaces. The factors of safety generated were compared with
the minimum empirically agreed slope factors of safety, and the best cut configuration for the
excavation was suggested.
KEYWORDS: Slope Stability Analysis, Slip Surface, Shear Strength, Factor of Safety,
Morgenstern-Price method and Interslice Forces.