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We report the experimental findings of formation and motion of heap ingranular materials in an inclined and vertically vibrated container. We showexperimentally how the transport velocity of heap up container is related tothe driving acceleration as well as the driving frequency of exciter. Ananalogous experiment was performed with a heap-shaped Plexiglas block. Wepropose that cohesion force resulted from pressure gradient in ambient gasplays a crucial role in enhancing and maintaining a heap, and ratchet effectcauses the movement of the heap. An equation which governs the transportvelocity of the heap is presented.Comment: 9 pages, 5 figures, submitted to PR

Formation and transport of a sand heap in an inclined and vertically vibrated container