Abstract
Slope stability analysis was carried out for an earthfill dam having a sloping core. From the analysis, it was concluded that the pseudostatic case is critical for this dam. A probability and sensitivity analysis was carried out for some of the cases to assess probability of failure. The materials in the zoned embankment were assigned some variation for the probability analysis which showed that some slip surfaces had a probability of failure which is much greater than an acceptable limit. From the sensitivity analysis it was concluded that the variation in friction angle of the shell material affects the factor of safety more than any other material parameter and variation tried. To get a probability of failure within selected limits the probability analysis was carried out on revised downstream slopes to see the difference in probability of failure after the slopes are flattened from 1.75H:1V to 2H:1V and 2.25H:1V.

Khan, F.S., Malik, A.A. (2013) Probability and Sensitivity Analysis of the Slope Stability of Naulong Dam, Pakistan Journal of Engineering and Applied Sciences, Volume 13, Issue 1.
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