Stresses within granular materials contained between vertical walls

Sivakugan, Nagaratnam, and Widisinghe, Sankha (2013) Stresses within granular materials contained between vertical walls. Indian Geotechnical Journal, 43 (1). pp. 30-38.

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Abstract

Arching is an important phenomenon that has to be understood when designing backfilled trenches, storage silos and underground mine stopes supporting granular materials. Here, a significant fraction of the fill load is carried by the wall friction and hence the load transferred to the bottom of the fill is substantially reduced. The objective of this paper is to present three different approaches, namely, analytical, experimental and numerical, to study the vertical normal stresses within a granular material contained between vertical walls. The laboratory model discussed herein is an effective tool in deriving the variation of shear stress on the wall and the average normal stresses with depth. It is shown that the analytical and numerical models that treat the granular material as a continuum suggest an asymptotic vertical normal stress that is reached at certain depths, whereas the laboratory model tests show that the vertical stresses increase continuously even at very large depths.

Item ID: 24939
Item Type: Article (Research - C1)
ISSN: 0046-8983
Keywords: arching, granular fill, mine stope, backfill, silos
Date Deposited: 11 Feb 2013 01:49
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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