Stability Enhancement of Existing Cantilever Retaining Wall

Abstract

Start typing the abstract here. The increased surcharge on existing retaining walls, resulting from new infrastructure or pavement construction, heightens lateral pressure and may destabilize the retaining wall. Researchers explored various techniques like relief shelves, EPS geofoam, and soil reinforcement to address high lateral earth pressure, but found them impractical for existing retaining walls. This study aims to evaluate the feasibility and effectiveness of vertical plate anchors for stabilizing existing cantilever retaining walls. In this study, Redistribution of lateral earth pressure of existing cantilever retaining wall with and without vertical plate anchors has been evaluated using FEM on Plaxis 2D. In the parametric analysis, different models were examined to explore the impact of geometrical and soil strength parameters on the Factor of Safety (FOS) of the cantilever retaining wall. Based on the findings of this study, the use of a vertical plate anchor can significantly enhance the stability of the wall. The FEM model's validation involves comparing lateral earth pressure values obtained from PLAXIS program with the analytical equations. Non-linear regression analysis using a polynomial regression model was performed to predict the Factor of Safety (FOS). The predicted FOS values showed a high level of accuracy when compared to those determined by Plaxis 2D.