Geotechnical Factors Associated With Previously Mined Areas of Coal and Their Impact on Subsequent Extraction
Masters research on pillar extraction in the Witbank Coalfield, ranking the ground conditions that decide method choice and safety, for rock engineers and mine planners.
Geotechnical factors affecting secondary extraction were identified from interviews with collieries already re-mining pillars and with people experienced in stooping, then quantified and ranked against the different aspects of the work. No single factor governs the outcome. Factors interact, so choosing a method and working safely in old workings depends on managing them together across disciplines.
R1500,00
Description
Related Products
Rehabilitation of Mined Land Irrigation of Pastures with Gypsiferous Mine water
2011
Pasture and animal production work on rehabilitated mine land under mine water irrigation, joining agronomy and animal science, for rehabilitation and closure planners.
What this report foundGrazing trials on tall fescue pasture irrigated with gypsiferous mine water on rehabilitated mined land, run over several seasons.
R1500,00
Grazing trials on tall fescue pasture irrigated with gypsiferous mine water on rehabilitated mined land, run over several seasons. The work covers steer stocking rates, dry matter intake by cattle, and the factors that control pasture quality and intake, among them nitrogen fertilisation, stage of growth, sward structure and grazing intensity. Findings are reported study by study.