The "Sand-gravel cushion" frame allows us to input parameters of the sand-gravel cushion below the foundation. The cushion thickness and overhang over the foundation edge are required. The values can be edited either in the frame by inserting values into input fields, or on the desktop with the help of active dimensions.
The cushion filling can be selected from a combo list that contains soils specified in the frame "Soils".
Frame "Sand - gravel cushion"