It is assumed that when material is stacked at any point, it rills at a given angle of repose. Thus, material stacked at a fixed point on an empty base would form a cone. The angle of repose is assumed to be constant for any given stacking operation, but may be varied between stacking operations. When material is reclaimed, it is also assumed to rill, but the angle of repose for reclaiming is assumed to be independent of the batch and has no particular relationship to the angle of repose when stacking. Stackers Stackers associated can be of the following types.
Material is deposited in a cone from a fixed point.
The x and y coordinates of the apex of the cone are specified. Material is deposited in a cone from a fixed point. The x and y coordinates of the apex of the cone are specified. Material is deposited in a series of cones. The stacker deposits material until it reaches a specified height.