Control of dilution using the modified creeping cone method at Selebi North Mine

Journal article

Authors/Editors

Suglo, Raymond

Research Areas

ENGINEERING AND TECHNOLOGY (Frascati classification)

Publication Details

Subtitle: Control of dilution using the modified creeping cone method at Selebi North Mine

Author list: Suglo, Raymond

Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles

Publication year: 2008

Journal: International Journal of Mining, Reclamation and Environment (1748-0930)

Issue number: 1

Start page: 36

End page: 47

Number of pages: 12

ISSN: 1748-0930

eISSN: 1748-0949

URL: https://www.tandfonline.com/doi/abs/10.1080/17480930701325095

Languages: English-United States (EN-US)

View on publisher site

Abstract

Mining companies are adopting bulk mining methods in their operations because they are safe and can be easily mechanized and automated. The introduction of the creeping cone method at Selebi North Mine in Botswana reduced ore dilution by a half. However, the low grades of the mineable reserves in the deeper sections of the mine require further reductions in dilution to mine profitably. The modified creeping cone (MCC) method was designed to create stable stope wall conditions and give lower dilution levels. Voussoir arch and simple beam theory methods were used to design the MCC method. The results show that for stopes 50 m high and 4-22 m wide, 50-185 m of room span can be mined using cable bolt reinforced walls. With the MCC method, ore dilution can be reduced to 19.2% while ore grades will increase by 10.5%.

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