Safety checks

The program carries out three global stability checks:

• Ratio between the balancing moment of passive soil pressure in the infill and unbalancing moment of active soil pressure in the backfill
  This check is carried out in phases where there is no support on the embedded wall, or where there is a maximum of one support because, in phases with more than one support, the embedded wall is already balanced.
  

• Safety reserve of passive soil pressure in the infill
  Just like in the previous check, this is carried out in phases where there is no support on the embedded wall, or where there is a maximum of one support because, in phases with more than one support, the embedded wall is already balanced.
  

• Critical slip circle
  For embedded walls, this check is carried out in the phases in which no slabs have been built yet because, in the phases in which the slabs are placed, the embedded wall is already balanced.

Seismic analysis

The pseudo-static method was used to evaluate the soil pressure, with the dynamic soil pressure coefficients based on the Mononobe-Okabe method.