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Numerical experiments concerning long-term deformation of rock samples
(National Mining University, 2019-12-30)
Purpose is to develop modeling methods of long-term rock sample deformation and failure under various loading conditions with the help of finite-element method of failure rock modeling (DESTROCK-FE).
Methods. DESTROCK-FE ...
Beneficiation of phosphate sludge rejected from Djebel Onk plant (Algeria)
(National Mining University, 2019-12-30)
Purpose Flotation tests have been used in order to achieve the purposes of this study which are: To obtain the highest recovery with a maximum grade of P2O5 from the tailing generated by the phosphate plant of Djebel Onk ...
Analysis of operation parameters of partial backfilling in the context of selective coal mining
(National Mining University, 2019-12-30)
Purpose is to determine factors of effect of mechanical parameters and geometry of packs, constructed using the undercut rocks in the process of selective coal mining, on the state of geomechanical system within a mine ...
Fault tree analysis and prevention strategies for gas explosion in underground coal mines of Pakistan
(National Mining University, 2019-12-30)
Purpose. Gas explosion in the underground coal mines of Pakistan is the main source of coal miners’ mortalities. The purpose of this article is to analyze the main causes of gas explosion in the underground coal mines of ...
Study of change in the leaching solution activity after treatment with a cavitator
(National Mining University, 2019-12-30)
Purpose. Increasing the valuable component content in a pregnant solution due to the activation of leaching solution with cavitation treatment in case of the borehole in-situ leaching (ISL).
Methods. To obtain the cavitation ...
Use of the TOPSIS technique to choose the best supplier of quarry natural aggregate
(National Mining University, 2020-03-30)
Purpose. All over the world, natural substance – the most consumed after water – is the aggregate. The aim of this paper is to select the best supplier of Quarry Natural Aggregate (QNA).
Methods. Selection of the best ...
Solution of the problem to optimize two-stage allocation of the material flows
(National Mining University, 2020-03-30)
Purpose is to elaborate innovative and computationally efficient algorithm to solve a problem of two-stage allocation of the resource occupying continuously the specified area as well as to demonstrate the behaviour of the ...
Research into limits of gas-fired burners flame stabilization in the flue gas recirculation
(National Mining University, 2020-03-30)
Purpose. Determining the flue gas recirculation effect on the verge of the gas-fired burners flame stabilization based on experimental industrial research.
Methods. The studies were conducted on a circular heating furnace ...
Experimental research into the effect of some operation factors and rock properties on the rate of penetration
(National Mining University, 2020-03-30)
Purpose. The purpose of this research is to investigate the effect of weight on bit (WOB), rotary speed (RPM), and some rock properties on the rate of penetration (ROP).
Methods. Four types of rock were collected from ...
Topical problems concerning both methods and economy to develop mineral deposits
(National Mining University, 2018-12-30)
Purpose. Development of mining enterprises adaptation to changes in conjuncture of a product market relying upon its competitiveness while reducing expenditures connected with mineral stock extraction at the expense of ...