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Spread Footing 

GEO5

Geotechnical software

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Influence of sand-gravel cushion

If the sand-gravel cushion is specified below the spread footing, the material parameters X in individual layers are computed in the following way:

For layer ha,i :

where: Xi - material parameters at ith layer
Xc - material parameters of sand-gravel cushion

For layer hb,i :

where: Ac - area of sand-gravel cushion
Xc - material parameters of sand-gravel cushion
Xb,i - material parameters of b,i layer
bi - cushion widths in the ith layer
li - cushion length in the ith layer

Analysis Xi in the sand-gravel cushion




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