Slope stability: infinite slope

Set the slope angle, soil strength, slip depth and water table to see the factor of safety.

Works in metric or imperial units.

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Questions students ask

Why do landslides follow heavy rain?

Water pressure in the soil reduces the effective stress, and so the friction that holds the slope.

What formula does it use?

FS = (c′ + (γz cos²β − u) tan φ′) / (γz sin β cos β).

Free notes on slope stability

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