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Best Slope Stability analysis software?

  • 1.  Best Slope Stability analysis software?

    Posted 16 days ago
    Hi everyone: I recently saw a posting asking about best pdf software, which had a number of very useful replies.  I'm hoping to get similar guidance on which software/programs people are using to model and analyze slope stability?  I'm aware of programs from Slope/W, Geo5, and Rocscience, but have only ever used Slope/W (years ago) and would like your input on which of these (or any others) are best these days?  I'm working in a (very) small consulting engineering firm and need software that's packs as much value as possible, and is user-friendly.  Thanks very much for any and all feedback!
    Garnet Brenchley, P.Eng.
    Ontario, Canada

    Garnet Brenchley P.Eng, M.ASCE
    Cavan ON

  • 2.  RE: Best Slope Stability analysis software?

    Posted 15 days ago
    Hi Garnet,

    The software you mention in your post uses the limit equilibrium method. If you would like an approach without the limitations of limit equilibrium methods, please consider FLAC/Slope.

    FLAC/Slope is a special, streamlined version of FLAC for evaluating the factor of safety (FoS) of soil and rock slopes in two dimensions with simple and fast model setup and analysis execution. FLAC/Slope can simulate stability problems under a wide variety of slope conditions, including: arbitrary slope geometries, multiple layers, pore pressure conditions, heterogeneous soil properties, surface loading, and structural reinforcement.

    FLAC/Slope is now available for free. A fully functional version of FLAC/Slope can be download at:

    Best wishes with your project!


    Lee Petersen, Principal
    Itasca Consulting Group

    David Petersen M.ASCE
    Minneapolis MN