FLAC3D Theory and Background • Factor of Safety

Factor of Safety

The theoretical background for FLAC3D factor of safety calculation is presented in this section.

Section Outline

• Introduction
• Factor of Safety
• Computational Methods for Factor of Safety Calculation of Slopes
  • Strength Reduction Technique
  • Limit Analysis
  • Limit Equilibrium
  • Relation of Strength Reduction Method to Limit Equilibrium and Limit Analysis
• Strength Reduction Procedure in FLAC3D
  • Strength Reduction Properties
    • Mohr-Coulomb Material
    • Ubiquitous-Joint Material
    • Hoek-Brown Material
    • Interfaces
• Example Factor of Safety Calculations using the Strength Reduction Method
  • Failure of a Slope with a Complex Surface Profile in a Mohr-Coulomb Material
  • Influence of Slope Curvature on Stability
  • Simple Slope in Hoek-Brown Material
  • Automatic Calculation of a Stable Pit Slope Angle
  • Factor of Safety Contours
• References