Analysis According to the Theory of Limit States / Safety Factor
The verification parameters are input in the "Stability analysis" tab. The structure can be verified according to the factor of safety or the theory of limit states.
Verification according to the theory of limit states:
Soil parameters (angle of internal friction, cohesion) are in this case reduced using the design coefficients introduced in the "Stability analysis" tab.
The value of utilization Vu is calculated and then compared with the value of 100%. The value of utilization is given by:
where: | Ma | - | sliding moment |
Mp | - | resisting moment |
The resisting moment Mp is determined considering the reduction with the help of the overall stability of construction γs.
Verification according to the factor of safety:
where: | Ma | - | sliding moment |
Mp | - | resisting moment | |
SFs | - | factor of safety |