Stability analysis of reinforced earth wall for the approach road of a R.O.B along National Highway: A case study

Soft ground usually possesses low shear strengths andhigh compressibility. Reinforced earth (RE) wall is constructed on this soft ground have a tendency to fail. In literature stability of this reinforced earth wall is improved by providing geo-grid reinforcement. In the present paper stability analysis of a highway embankment is presented. The proposed highway embankment is provided along the approach on either side of bridge. The maximum height of embankment is 7m and its stability is a concern. In the preset study modeling and stability analysis of the embankment at typical sections is computed using slope/W using Morgenstern price method. Results of lab tests on subgrade and stability results are presented. It is observed that, the stability is improved using geosynthetics provided near slope face and at b ase. Parametric study is carried out by varying tensile capacity of geo-grid, number of layers and their influence on stability is quantified and presented .