SLOPE/W 2012 slope stability analysis.
Formulation
SLOPE/W is formulated in terms of moment and force equilibrium factor of safety equations. For example, the MorgensternPrice method satisfies both force and moment equilibrium. This general formulation makes it easy to compute the factor of safety for a variety of methods and to readily understand the relationships and differences among all the methods.
SLOPE/W can use finite element computed stresses from SIGMA/W or QUAKE/W to calculate a stability factor by computing both total shear resistance and mobilized shear stress along the entire slip surface. SLOPE/W then computes a local stability factor for each slice.
Probabilistic analysis can be performed by using normal distribution functions to vary soil properties and loading conditions. Using a Monte Carlo approach, SLOPE/W computes the probability of failure in addition to the conventional factor of safety.
Features

Limit equilibrium methods include MorgensternPrice, GLE, Spencer, Bishop, Ordinary, Janbu and more.

Soil strength models include MohrCoulomb, Spatial MohrCoulomb, Bilinear, Undrained (Phi=0), anisotropic strength, shear/normal function, and many types of strength functions.

Specify many types of interslice shearnormal force functions.

Porewater pressure options include Ru coefficients, piezometric lines, pressure contours, a grid of values, spatial functions, or finiteelement computed heads or pressures.

Define potential slip surfaces by a grid of centers and radius lines, blocks of slip surface points, entry and exit ranges, fully specified shapes, or automatic.

Use probabilistic soil properties, line loads and piezometric lines.

Transient stability analyses

And many more!