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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 22, No. 10, 2018, pp. 1647-1653
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Bioline Code: ja18277
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Applied Sciences and Environmental Management, Vol. 22, No. 10, 2018, pp. 1647-1653
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Slope Stability Analysis of Nkran Pit at Asanko Gold Mine, Ghana
AGYEI, G; OSEI, J B & ADOKO, AC
Abstract
The West Wall of Nkran Pit Mine is vulnerable to slope instability, mostly due to mining activities.
Detailed failure analysis of the discontinuity data of the selected slope was performed using the Dips (6.0) software.
The study has shown the likelihood of planar failure, wedge failure, flexural toppling failure and direct toppling failure
occurring per the slope angle design of 70°. When the slope angle was increased by 5° and 10°, there were percentage
increases in planar, wedge, flexural toppling and direct toppling failure of (1.86 and 7.45)%, (1.23 and 2.81)%, (0.62
and 0.62)% and (0.60 and 1.70)% respectively. It has been recommended that flattening or reducing slope angle could
be done as it reduces the weight of material which in turn improves the stability of the slope and also controlled
blasting should be employed to minimise excessive damage to the walls.
Keywords
Slope; Stability; Toppling; Mining
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© Copyright 2018 - Agyei et al.
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