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Soil Friction/Sliding and effect of Soil Pressure?

Soil Friction/Sliding and effect of Soil Pressure?

Soil Friction/Sliding and effect of Soil Pressure?

(OP)
I am considering a mass conc. pad foundation for a small framed open sided building (designed as freestanding walls/canopy roof). Wind dictates the design and therefore there are quite large horizontal shear values at the supports.

I am taking a friction (μ) value of 0.3, and the base is struggling in sliding. Can I take into account the weight of soil pressure on the foundation as resisting the sliding?

RE: Soil Friction/Sliding and effect of Soil Pressure?

Yes, you can typically take into account the passive soil force on the foundation. This value is usually pretty small. Other possible solutions may be to use a base key or increase the width of the foundation.

RE: Soil Friction/Sliding and effect of Soil Pressure?

I just read your post more clearly, and yes I have seen the overburden used to resist the sliding force, but I typical ignore it as you have no control on any change of grading over the life of the building.

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