The "Surcharge" frame contains a table with a list of input surcharges. Adding surcharge is performed in the "New surcharge" dialog window. The values are specified according to the "Geometry" chart displayed in the right part of the dialog window. The input surcharges can also be edited on the desktop with the help of active objects.
The z-coordinate measured from the foundation joint of a structure is specified (positive direction downwards) when inputting the surcharge at a depth different from the depth of the foundation joint.
The surcharge is considered only when computing settlement and rotation of a foundation, in which case it increases the stress in the soil below foundation. When computing the foundation bearing capacity, the surcharge is not considered - its presence would increase the bearing capacity.