Design And Support Of Rockpasses At Ultra-Deep Levels

Vieira, F. M. C. C.
Organization: The Southern African Institute of Mining and Metallurgy
Pages: 12
Publication Date: Jan 1, 2005
The DEEPMINE Research Programme sought to develop the technology and competence to mine gold safely and profitably at depths of 3 to 5 km. Among the many issues addressed was the stability and support of rockpasses at ultra-depth. It was found that high virgin and mining-induced stresses could cause the walls of rockpasses to spall, leading to the deterioration and failure. A comprehensive programme of numerical modelling was conducted to investigate alternative mining layouts and sequences to ameliorate the problem.
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