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This study has demonstrated that artificial concrete pillars can stabilize the active stopes, especially in broader sections of the orebodies intercepted with geotechnical challenges such as high-stress change, spalling, slabbing, sloughing, etc. FLAC3D numerical code was successfully used to...

Since 1995, Konkola Mine No.1 Shaft in Zambia has been experiencing increased seismic activity, leading to more rockburst incidents, which could present significant safety and production challenges at deeper levels. This study aimed to develop tools to predict rockburst from microseismic and...

Historically, mining has been an enormous contributor to the development and sustainability of several societies. The industry despite being a source of wealth is not without risks and challenges, including environmental and operational hazards. These pose a huge challenge to the safety and...

Mining at Kansanshi is currently conducted in two pits namely Main and North West pit. Mining at both pits is conducted by conventional open pit methods involving 18 hydraulic excavators and a mining fleet of haul 86 trucks.There has a been a general concern on the mined material tonnes...

Nchanga Open Pit (NOP) is facing a critical equipment planning decision after undertaking improvement projects at the processing plant namely Elevated Temperature Leaching, Heap Leaching and Cobalt/Copper separation. Elevated Temperature Leaching has resulted in 20% increase in the recovery of...

Temperatures and humidity at Mindola Sub-Vertical (MSV) shaft have been rising with depth as mining of lower lying copper reserves is achieved. This rise in temperature has been catalysed by a number factors notably the increase of diesel equipment, geothermal gradient (increase in depth), auto...

Zambia is one of the major gemstone producers of the world. The global value of rough Emerald production is estimated at US$1 billion a year. Available data indicate that Zambia accounts for about 20% of this value. Apart from emeralds, there are also several other important gemstones produced in...

Small-scale mining (SSM) activities in Tanzania are conducted using rudimentary mining tools such as shovels, hoes, picks and chisels. In most cases, mining practices do not use engineering plans and designs and usually are done haphazardly resulting in abandoned shafts, pits, trenches and other...