Arching in soils applied to inclined mine stopes

Ting, Ching Hung, Shukla, Sanjay Kumar, and Sivakugan, Nagaratnam (2011) Arching in soils applied to inclined mine stopes. International Journal of Geomechanics, 11 (1). pp. 29-35.

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Determination of stress distribution, giving due consideration to arching mechanism within minefill stopes, is of great importance because of its influence on the ground stability, ore recovery, and cost effectiveness. Most of the past studies on the stress determination have been applied to vertical stopes, and there is a lack of research study, especially analytical work, on inclined stopes. This study provides an analytical expression for the vertical stress at any depth within the inclined backfilled stopes by incorporating an arching effect within the backfill. Comparatively, the results obtained from this study agree well with other limited analytical and numerical results reported in the literature. A parametric study is undertaken to investigate the effect of various parameters involved in the proposed analytical expression. The results obtained reveal that stope geometry, fill properties, and stope inclination are critical factors in predicting the stress distribution in mine stopes.

Item ID: 15227
Item Type: Article (Research - C1)
ISSN: 1943-5622
Keywords: arching; backfills; mine stopes; soils; stress distribution
Date Deposited: 18 Jan 2011 06:45
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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