The "Surcharge" frame contains a table with a list of input surcharges. Adding surcharge is performed in the "New surcharge" dialog window. The input surcharges can be edited on the desktop with the help of active dimensions or by active objects.
The z-coordinate measured from the top point of a structure is specified (positive direction downwards) when inputting the surcharge at a certain depth. When the surcharge is found out off the terrain, the program prompts an error message before calculation.
Either permanent, variable or accidental surcharge can be specified. Resulting load action is multiplied by the corresponding design coefficient according to the type of surcharge. Accidental surcharge with favorable effect is not considered in the analysis.
The effect of surcharge on earth pressure analysis is described in the theoretical part of the help, chapter "Influence of surcharge".