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Arching Effect in Sand

Arching Effect in Sand

Arching Effect in Sand


In case of determination of pile capacity in cohesionless soil generally it is considered that overburden increases linearly upto a depth of 15-20D (D being the pile diameter). Beyond which it's become constant. It is established from laboratory and field tests that this is happened due to "Arching" effect in sand.
I would like to know the fundatmental mechanism of "Arching" phenomenon in cohesionless soil in case of pile?

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RE: Arching Effect in Sand

There isn't one - this is generally assumed to be a remnant of the installation process.

By the way this "assumption" is not universal in its' use -

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