Active Earth Pressure - Total Stress
When determining the active earth pressure in cohesive fully saturated soils, in which case the consolidation is usually prevented (undrained conditions), the horizontal normal total stress σx receives the form:
where: | σx | - | horizontal total stress (normal) |
σz | - | vertical normal total stress | |
Kuc | - | coefficient of earth pressure | |
cu | - | total cohesion of soil |
The coefficient of earth pressure Kuc is given by:
where: | Kuc | - | coefficient of earth pressure |
cu | - | total cohesion of soil | |
au | - | total adhesion of soil to the structure |