When evaluating slope stability for a retaining wall, which approach is used to determine safety with respect to loads and soil properties?

When evaluating slope stability for a retaining wall, which approach is used to determine safety with respect to loads and soil properties?

• A. Use only static factors of safety against sliding without considering seepage.
• B. Base stability purely on observed slide history.
• C. Compare resisting shear to driving forces with a factor of safety; assess seepage, surcharge, and earth pressures.
• D. Rely solely on factor of safety against overturning for slope walls.

Answer: (C)