Loads on barricades in hydraulically backfilled underground mine stopes

Widisinghe, S.D., Sivakugan, N., and Wang, V.Z. (2014) Loads on barricades in hydraulically backfilled underground mine stopes. In: Proceedings of the 11th International Symposium on Mining with Backfill. pp. 123-134. From: Mine Fill 2014: 11th International Symposium on Mining with Backfill, 20-22 May 2014, Perth, WA, Australia.

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Abstract

In the recent past, there has been significant growth in underground mining due to the ever increasing demand for resources and the advancement in technologies. The post-processed tailings are directed back into the mine stopes as backfill, with barricades in place to retain the backfills. Failure of the barricades can be catastrophic and several accidents have been reported in Australia and worldwide that have resulted in fatalities. Proper understanding of the loading on the barricades is necessary to design them with confidence, thus ensuring safe mining practices. The object of this paper is to discuss some laboratory model tests carried out at James Cook University laboratory to investigate the stresses within drives. A novel laboratory apparatus was developed where a cylindrical container with a horizontal drive, filled with dry hydraulic fill, was loaded by the MTS machine. The vertical stresses at the bottom of the stope, near the wall, and the horizontal stresses on the drive were measured using earth pressure cells. This was also simulated numerically using a finite difference code Fast Lagrangian Analysis of Continua for three dimensions (FLAC3D). Results are compared from three approaches and implications are discussed.

Item ID: 33402
Item Type: Conference Item (Research - E1)
ISBN: 978-0-9870937-8-3
Date Deposited: 12 Jun 2014 02:22
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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