Effects of construction history on the stress distribution under a sand pile

Details Effects of construction history on the stress distribution under a sand pile Effects of construction history on the stress distribution under a sand pile

1999-06-21

arxiv.org/abs/cond-mat/9906321v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 4 figures

Scientific paper

We report experiments on cohesionless granular piles to determine the effect of construction history on the static stress distribution. The stresses beneath the piles are monitored using a very sensitive capacitive technique. The piles are formed either by release of granular material from a relatively small output (localized source), or from a large diameter sieve (homogeneous rain). The stress profiles resulting from localized source inputs have a clear stress dip near the center of the pile while the results from an homogeneous rain show no stress dip. We also show that the stress profiles scale simply with the pile height. Experiments on wedges-shaped piles show the same effects but to a lesser degree.

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