What does a cantilever wall utilize to resist overturning?

A cantilever wall, commonly used in retaining applications, primarily utilizes the weight of the wall itself along with the soil over the heel and the pressure exerted beneath its base to resist overturning moments.

The design relies on the wall's weight to create a stabilizing force against the lateral pressure exerted by the soil. This weight, combined with the soil above the heel of the wall, contributes to the overall vertical load that enhances the wall's stability. Additionally, the soil pressure acting under the base of the wall plays a crucial role in resisting sliding and overturning by providing resistance through friction and bearing capacity.

In contrast, passive resistance from friction and dynamic loading support systems do not adequately address the specific mechanics of a cantilever wall's stability against overturning forces. While active soil pressure could theoretically act against the wall, it would not provide a comprehensive solution for resisting overturning since it reflects the lateral force rather than the mechanisms that provide stability. Hence, the correct understanding of a cantilever wall's design acknowledges the crucial aspect of weight and pressure beneath the base in ensuring stability.