Sliding check

The Sliding check is executed according to EN 1997-1 art. 6.5.3 [Ref.1]

The Sliding resistance R_d depends on the fact if the soil condition is drained or undrained.

The value R_p,d specifies the positive effect of the earth pressure at the side of the foundation. Since this effect cannot be relied upon, this value is taken as zero [Ref.2].

The sliding resistance is dependent on the condition of the subsoil.

1. In case the Type field in the Subsoil Library is set to Undrained.
   
   

   Value	Formula
   cud	As specified in "Determination of Design Values"
   A'	Effective area as defined in "Determination of Effective Geometry"
   	Resistance factor read from the National Annex Setup

   
   In case the checkbox Water/air in clay subgrade in the Subsoil Library is activated, the value of R_dis limited as follows:
   

   Value	Formula
   Vd	As specified in "Determination of Effective Geometry"

2. In case the Type field in the Subsoil Library is set to Drained.

   
   

   Value	Formula
   Vd	As specified in "Determination of Effective Geometry"
   	Design friction angle at the foundation base. Dependent on the Cast condition specified in the Pad Foundation Library: Cast Condition Prefabricated In situ
   	As specified in "Determination of Design Values"
   	Resistance factor read from the National Annex Setup