Retaining wall

[HenkaCarlsson]

Hi!

I'm designing a building with the lower part of the walls made as a retaining wall with soil pressure.

I tried to design that part in Foundation design with different backfill heights but it seems to me that Robot doesn't concider the excentricity of the backfill to retain the moment from the soil against the wall.

I searched the Help to see if there were some explanation on how the backfill is considered. But I didn't find any.

Can you help me? Which forces and moments from the backfill are considered in the calculation of the Foundation? And how is it done?

[Pawel.Pulak · Accepted solution]

Backfill in this  module is treated as the additional vertical dead load of the value resulting from the soil density and its volume.

Horizontal actions of the backfill are not considered - it is the module for foundations and not for retaining walls.It is assumed that the level differences of backfills are small.

The eccentricity resulting from vertical loads is visible - see the screen capture below showing the same geometry and load but different backfills.

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Regards,