3. Foundation Profile: Using mouse functions and/or numerical coordinates, the boundary between foundation layers is defined (up to 50 layers). Tabs allow for convenient access to each layer. At this stage, the total unit weight and Poisson's ratio are input. The importance of Poisson's ratio is in calculating elastic settlement and in non-vertical Boussinesq stresses due to surcharge; if these values are not required, the numerical value of the ratio is inconsequential. Color of layers can be set using a function in the toolbar.
