Design Input
Slope characteristics
Length of the slope (L)		m
Slope angle (ß)		degrees
Height of soil layers
Height of cover soil (h_cs)		mm
Height of drainage layer (h_dl)		mm
Permeability of the soil layers
Permeability of cover soil		cm/s
Design permeability of drainage layer		cm/s
Rain intensity parameters
Precipitation		mm/hr
Run-off coefficient
Soil characteristics
Dry unit weight of cover soil		kN/m³
Saturated unit weight of the cover soil		kN/m³
Friction angles
Friction angle of the cover soil		degrees
Friction angle of the cover soil / underlying interface		degrees

References

R. M. Koerner, and T-Y. Soong, 1998. "Analysis and Design of Veneer Cover Soils". Proceedings of 6^th International Conference on Geosynthetics, Vol. 1, pp. 1-23, Atlanta, Georgia, USA.