Title

Piping in the Flow of Granular Material from Rectangular Bins

Abstract

An examination of the conditions that exist in bins which are suited to the plane-strain idealization indicates that pipe flow is a stable condition in these bins. Piping is the flow of material in a bin in a flow field not much larger than the underlying orifice. This flow is counter to the more efficient 'mass', or expanding flow. A model bin was built to study this type of flow; of interest was a grid technique that was used to determine the velocities in the failing material. This technique allows an evaluation of the major principal stress direction. Results from the experiment tended to verify the conclusion that piping is a stable condition. This result implies that inefficient flow can be expected from plane-strain bins. These would be slot bins, like the model, bunkers, and certain types of mine stopes. © 1971.

Department(s)

Mining and Nuclear Engineering

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1971 Elsevier, All rights reserved.


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