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Slab foundations

PROBLEM

Concrete slab-on-ground designs are common for small buildings and houses in certain parts of the world. Changes in pore-water pressures in the clays beneath such foundations often lead to swelling or heaving of the foundation and result in cracks in the walls.

SOLUTION

SVFLUX and SVSOLID can be coupled in order to model this phenomenon. The amount of swell due to sprinklers or precipitation events can be calculated. Various solution scenarios may be explored with the software. The influence of surrounding vegetation and the shrinkage beneath a foundation may be calculated.

Please note that most of these models can be downloaded through our SVOffice product suite. Click here for additional information on this type of application.


FlatBearing

Flat bearing capacity. Ko-Loading is used to define the in-situ stress conditions. It is assumed that the concrete slab is already present for in-situ conditions. Then a load is applied to the concrete.

Model filename: Foundations > FlatBearing.svm

Tags: Foundations,SVSOLID,2D,Steady-State,Linear Elastic,SVSOLID Neglect PWP,Foundation design / settlement,Slab foundations,Foundations,Slab on Ground

Attachments:

ShrinkSlice3D_Day5

3-D modeling of seepage and stress processes beneath a floor slab - Verification Manual. A 1m wide slab is being examined for the edge-drop scenario caused by evaporation. The evaporation rate is 10 mm/day. This model does not consider the change in net normal stress during the stress/deformation part of the analysis, while model ShrinkSlice3D_Day5_UCS3 does.

Model filename: SlabOnGround > ShrinkSlice3D_Day5.svm

Tags: SlabOnGround,SVSOLID,3D,Steady-State,Unsaturated,SVSOLID Consider PWP,Gitirana 2,Slab foundations,Foundations,Slab on Ground,Benchmarking

Attachments:

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