Vertical stress isobars for silos and square backfilled mine stopes

Widisinghe, Sankha, and Sivakugan, Nagaratnam (2016) Vertical stress isobars for silos and square backfilled mine stopes. International Journal of Geomechanics, 16 (2). 06015003.

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Often granular materials are stored in vertical containers with circular or square cross sections. The storage material can be food grains, pharmaceutical powders, chemical pellets, or geomaterials such as mine fills. The design and analysis of these containers require adequate knowledge of the stresses developed within the filled material. The stress isobars developed herein enable the designers to estimate the vertical stress at any point within the fill contained in a silo. The same isobars can also be used for square cross sections, as in the case of backfilled underground mine stopes, without sacrificing the accuracy much. The same method was previously followed by the authors in developing isobars for plane-strain situations. On the basis of the two sets of isobars for trenches and square stopes, it is possible to interpolate the stresses for other rectangular mine stopes, which can serve as good first estimates in the designs.

Item ID: 44175
Item Type: Article (Research - C1)
ISSN: 1943-5622
Keywords: axisymmetry, silos, grains, backfills, arching, vertical loads
Date Deposited: 20 Jul 2016 04:58
FoR Codes: 40 ENGINEERING > 4005 Civil engineering > 400502 Civil geotechnical engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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