Progressive Failure Probability of Soil Slopes Containing Geologic Anomaliesby Robert B. Gilbert, Golder Associates, United States,
Wilson H. Tang, Golder Associates, United States,
Document Type: Proceeding Paper
Part of: Structural Safety and Reliability
The variability in the redistribution of stress during sliding failure of a slope is first studied. Presence of a geologic anomaly is shown to affect the failure path pattern and likelihood of progressive slope failure. A regression model is developed to relate the failure probability along a given slip surface of the slope with the anomaly attributes. By incorporating statistics of the anomaly attributes the expected progressive failure probability along a given slip surface is then calculated. Finally, a methodology is proposed to extend the reliability evaluation to consider multiple potential slip surfaces within the soil medium.
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