Geometry of Rock Block
The block geometry is determined by the gradient α, by the length of a given slip surface l and by the gradient of dividing joints φ separating the subsequent block as well as by the gradient α and the length l of the top face of the external surface of a rock slope (natural profile). Lengths of planes can be defined either by the total length or by the lengths of their horizontal and vertical projections. It is necessary to ensure the condition that all rock blocks are in contact (the opening between joints is not allowed).
Geometry of the ith element