September 2009
Simplification of jaw crusher for artisanal aggregates miners
A small-scale mobile jaw-crusher unit with a throughput of 1-1.5 tons of aggregates per hour has been designed, manufactured and tested at the Department of Chemical and Processing Engineering, University of Dar es Salaam. The equipment is aimed at reducing the drudgery and hardships faced by artisanal miners, mostly women, who spend long hours in quarrying sites excavating and crushing aggregates using...
September 2009
Engineering properties of marine clays from the eastern coast of India
The paper deals with the engineering properties of a marine clay collected from Visakhapatnam, India. First of all, the physical, chemical and mineralogical properties were determined. Thereafter, the strength and stiffness of the soil-water matrix were established. The properties under cyclic stress reversal were also studied. The detailed test results and observations are discussed sequentially in the...
September 2009
Rock cutting with surface miner: A computational approach
Surface miner is proved to be an efficient rock excavation technique in surface mines. However, till date, mining industry is facing a problem in selecting best surface miner model suitable to their conditions amongst the models available in the market. The readily available models are purchased by the mine authority and then, are deployed in the mines. This results into the increase in mining cost and...
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