Stability Analysis of Road-cut slope: A Case Study of Kanti Lokpath

Abstract

This research work presents the stability analysis of natural slope subjected to cutting for the construction of road at three different chainage along Kanti Lokpath using limiting equilibrium method by means of computer based geotechnical software slope/W(Geo-studio) 2019 and finite element method by means of software Phase2. Data required for the slope stability analysis is obtained from the laboratory test, carried out in many samples in order to determine physical and mechanical properties of soils, field survey and standard guidelines Factor of safety for the cut slopes was determined for different anticipated conditions. The result shows that stability of the slope decreases with increase in ground water level, increase in unit weight, decrease in cohesion strength and decrease in friction angle. Two cut slopes is unstable at dry condition and one cut slope is unstable when water table rises. Reduction of ground water table, application of retaining wall and soil nailing techniques are used with different parameters as preventive measures and cut slope is analyzed to provide optimized solution.