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Slope
Stability
Calculator
Calculate factor of safety for slopes using simplified Bishop method for homogeneous soil
Input Parameters
Slope Height (ft)
Slope Angle (degrees)
Cohesion (c) (psf)
Friction Angle (degrees)
Unit Weight (pcf)
Calculate
Results
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Factor of Safety
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Status
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Stability Number
Reference
Simplified: FS = 2c/(γH sin2β) + tanφ/tanβ Min FS: 1.5 (permanent), 1.25 (temporary) Stability Number Nc = c/(γH)