Parametric Study of Global Stability of Benched Earth Slopes
Hossein Ghiassian, Pedram Saffari, Fathi M O Mohamed
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: Landslides and Geohazards III
ABSTRACT: One of the available approaches for improving the stability of earth slopes is slope benching. Slope benching is often applied in construction of slopes associated with highway and railways projects as it decreases the overall slope steepness and consequently increases the mass stability leading to a higher factor of safety against global instability. In this paper, a parametric study of the global stability of a number of selected benched earth slope configurations was carried out using Slope/W Program. The limit equilibrium analysis approach using the well-known Modified Bishop’s method was adopted. Stability charts for various benched slopes were developed based on the obtained results from this study. Charts were prepared for slopes as functions of bench-width ratio, bench count, steepness, soil parameters and pore water pressure ratio parameters. The obtained charts are considered practical and could reasonably be used as a tool in preliminary slope benching design.
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Ghiassian, Hossein, Saffari, Pedram, Mohamed, Fathi M O (2018) Parametric Study of Global Stability of Benched Earth Slopes in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Ghiassian_GEO2018_302,
author = {{Ghiassian, Hossein}, {Saffari, Pedram}, {Mohamed, Fathi M O}}
title = {Parametric Study of Global Stability of Benched Earth Slopes }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Parametric Study of Global Stability of Benched Earth Slopes }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }