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1.

Analyse slope stability using piezometric lines with SLOPE/W

Use SLOPE/W to do a simple global stability analysis using a piezometric line to model pore-water pressures and the water surcharge load of a reservoir.

SEEP/W

2.

Improve PWP definition with seepage analysis with SEEP/W

Use SEEP/W or SEEP3D to do a steady-state seepage analysis and use the pore-water pressures directly in the SLOPE/W stability analysis. This provides a more realistic understanding of the stability due to the PWP conditions.

SEEP/W

SLOPE/W

3.

Model external loads with stress-strain analysis using SIGMA/W

Use SIGMA/W to model load application or removal, and use these stresses directly in the SLOPE/W analysis, along with the finite element pore-water pressures, to determine the safety factor of the earth structure. Alternatively, use the strength reduction analysis capabilities in SIGMA/W to reduce the strength parameters until a global rupture zone forms, which indicates the failure mechanism and the safety factor.

SIGMA/W

SLOPE/W

4.

See PWP & stress changes with consolidation analysis in SLOPE/W

Use a coupled stress and pore-water pressure analysis to simultaneously model the effect of loading on the pore-water pressures and stresses. Then use the computed stresses and pore-water pressures directly in a SLOPE/W analysis.

SLOPE/W

5.

Model effects of an earthquake with QUAKE/W

Use QUAKE/W to consider dynamic loading on the structure from an earthquake. QUAKE/W can begin with the initial stress and PWP profile that has already been computed by SIGMA/W and SEEP/W and then apply earthquake accelerations to model the resulting change in stress. A Newmark analysis can be conducted in SLOPE/W to determine the cumulative displacement along the critical slip surface.

QUAKE/W

SLOPE/W

SLOPE/W

6.

Model deformation and structure stability with SIGMA/W

Use SIGMA/W to redistribute the stresses generated by the earthquake in QUAKE/W, revealing the settlement that will occur in the earth structure. Use the final stresses and pore-water pressures in SLOPE/W to analyze stability at the end of shaking.

SIGMA/W

QUAKE/W

SLOPE/W

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