- Title
- Base pressure measurements under a scale model stockpile
- Creator
- McBride, William
- Relation
- Particulate Science and Technology: an International Journal Vol. 24, Issue 1, p. 59-70
- Publisher Link
- http://dx.doi.org/10.1080/02726350500403264
- Publisher
- Taylor & Francis
- Resource Type
- journal article
- Date
- 2006
- Description
- The ability of a granular bulk material to transmit internal shear stress is a fundamental property that is often overlooked or underestimated, yet it is this ability that allows many observed physical phenomena to occur. One such area that continues to be a focus for numerical, theoreticals and experimental researchers is the pressure that a stockpile of granular material places on the supporting surface. While appearing to be a simple problem, the ability of granular materials to transmit shear stress makes this an extremely complex problem. This article presents high-quality data collected under a 2 m high stockpile and full details of the experimental facilities used in the collection of the data. The work presented is of significant value, having a much greater scale than previous studies (Jotaki & Moriyama, 1979; Lee & Herington, 1971; Smid & Novosad, 1981), and the deliberate inclusion of a central reclaim channel offers insight into stress changes during gravity reclaim and refilling. The results of this work have shown that the so-called 'M' pressure does exist under larger stockpiles both with and without reclaim hoppers; of more significance is the reemergence of the M pressure upon refilling of an emptied stockpile. This clearly illustrates that the M pressure is a robust and natural pressure distribution for a conical stockpile.
- Subject
- bulk materials; stockpiles; tunnel loads; granular material
- Identifier
- uon:1232
- Identifier
- http://hdl.handle.net/1959.13/26932
- Identifier
- ISSN:0272-6351
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