The determination of mine waste dump material properties through back analysis

Determining the properties of mine waste dump material is very difficult, it is caused by the difference of dimension between the laboratory equipment and field material size distribution. This study aims to determine the material properties from mine waste dump material using back analysis method a...

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Bibliographic Details
Published in:Journal of King Saud University. Engineering sciences 2023-02, Vol.35 (2), p.83-91
Main Author: Sujatono, Supandi
Format: Article
Language:English
Subjects:
Back Analysis
Slope Stability
Waste Dump
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Summary:Determining the properties of mine waste dump material is very difficult, it is caused by the difference of dimension between the laboratory equipment and field material size distribution. This study aims to determine the material properties from mine waste dump material using back analysis method after failure was occurred. The back analysis method is based on a trial and error concept which focuses on failure geometry and it is conducted by varying the cohesion and friction angle until the safety factor was less than 1.0. The laboratory results showed a 66.2 kPa change as well as a 48.8°friction angle deviation in mine waste dump material properties, while the back analysis indicated 33.7 kPa and 27.4°. It means, there is a reduction in the value. Therefore, the increasing in these properties are expected to allow the redesign of heap stability.
ISSN:1018-3639
1018-3639
DOI:10.1016/j.jksues.2021.02.008