Using this method, a global safety factor is calculated, which indicates how much the strength parameters of the soil material, cohesion c and internal friction angle ϕ, can be reduced in order to still achieve numerical stability, that is, a state of equilibrium.
|
η |
Safety and reduction factor |
|
φc |
Characteristic internal friction angle |
|
φb |
Reduced internal friction angle (at failure) |
|
cc |
Characteristic value of cohesion |
|
cb |
Reduced cohesion (at failure) |
