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Sensitivity Analysis: General
In RocPlane, sensitivity analysis allows the user to determine the "sensitivity" of the safety factor, to variation in the input data variables. This is done by varying one variable at a time, keeping all other variables constant, and plotting a graph of safety factor versus the variable.
Sensitivity graph of safety factor versus slope angle
The user can also generate plots with multiple parameters to determine which has the most influence on the factor of safety. In this case, the horizontal axis will be in terms of Percent Change. The Percent Change is the relative difference between the Minimum value of a variable (0 %) and the Maximum value of a variable (100 %).
Sensitivity Input Dialogue
Sensitivity graph of safety factor versus slope angle, slope height, unit weight, failure plane angle, and upper face angle
The sampler option is also available in the Sensitivity Analysis, allowing user to obtain exact values of points on the sensitivity curves.
Sensitivity graph with the sampler (the horizontal dotted line)
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