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Piping verification using finite element analysis
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In the proposed example is reported the piping verification of a channel section through the use of GeoStru software GFAS (Finite Element Analysis in Geotechnics).
Cross section geometry
The geometry of the cross section has a trapezoidal shape
Geotechnical parametres
For the section under consideration were used the geotechnical parameters of the geologic report.
Gradient method
The viscous action of water causes a transfer of energy between the water and the ground: between two points with Δs distance apart along a stream line, in fact, there is a hydraulic head Δh. The corresponding force is called seepage force: when it increases above a certain value, it can cause the phenomenon of Piping which consists in the removal of soil granules and the consequent faster and faster seepage flow until the formation of real flow channels.
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