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Earth Slope Stability Analysis – Part III. M. Zoghi, Ph.D., P.E. Department of Civil & Environmental Engineering Idaho State University Fall 2007. Outline. Review Spencer and Morganstern -Price Methods Janbu Method Sliding Block Analysis Stabilization Techniques. I. Review.
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Earth Slope Stability Analysis – Part III M. Zoghi, Ph.D., P.E. Department of Civil & Environmental Engineering Idaho State University Fall 2007
Outline Review Spencer and Morganstern-Price Methods Janbu Method Sliding Block Analysis Stabilization Techniques
Stabilization Methods Selection Criteria: • Subsurface conditions & potential modes of failure • The present & required topography • Physical constraints – property lines or buildings • Consequences of failure • Availability of materials, equipment, & expertise • Local performance history • Aesthetics • Time required for construction • Cost
Berm Provided at ToeWeight Increases the Resistance to Sliding
Drainage of Slopes Drains are added to stabilize slopes
Retaining Wall OR Sheetpiling OR Cylinder Piles Provided to Increase Resistance to Sliding
Rockslide Sheds A concrete rockslide shed in Taiwan