Urban development and growth explosion continue while availability of premium land dwindles. The lack of level property has forced us to build in less favorable locations. Although these structures are properly designed, grade separations pose another problem: slope stability.
Soils erode naturally over time through the action of wind and rain. The addition of structural loads contributes to the effect. That is why foundation design considerations need to extend beyond the structure, local stability, and account for the global stability of the site.