Biochemical Beneficiation of Mining Industry Effluents

Abstract The Author endeavored to consult some of the Polish experts who deal with assessing and preventing outburst hazards as to their knowledge and experience. On the basis of this knowledge, an expert system, based on fuzzy logic, was created. The system allows automatic assessment of outburst hazard. The work was completed in two stages. The first stage involved researching relevant sources and rules concerning outburst hazard, and, subsequently, determining a number of parameters measured or observed in the mining industry that are potentially connected with the outburst phenomenon and can be useful when estimating outburst hazard. Then, the Author contacted selected experts who are actively involved in preventing outburst hazard, both in the industry and science field. The experts were anonymously surveyed, which made it possible to select the parameters which are the most essential in assessing outburst hazard. The second stage involved gaining knowledge from the experts by means of a questionnaire-interview. Subjective opinions on estimating outburst hazard on the basis of the parameters selected during the first stage were then systematized using the structures typical of the expert system based on fuzzy logic.

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The Nature of Mining-Induced Horizontal Displacement of Surface on the Example of Several Coal Mines

Archives of Mining Sciences ◽

10.2478/amsc-2014-0067 ◽

2014 ◽

Vol 59 (4) ◽

pp. 971-986 ◽

Cited By ~ 3

Author(s):

Krzysztof Tajduś

Keyword(s):

Underground Mining ◽

Mining Industry ◽

Horizontal Displacement ◽

Surface Slope ◽

Proportionality Coefficient ◽

Model Studies ◽

Displacement Vectors ◽

Mining Conditions ◽

Design Projects ◽

Academy Of Sciences

Abstract The paper presents the analysis of the phenomenon of horizontal displacement of surface induced by underground mining exploitation. In the initial part, the basic theories describing horizontal displacement are discussed, followed by three illustrative examples of underground exploitation in varied mining conditions. It is argued that center of gravity (COG) method presented in the paper, hypothesis of Awierszyn and model studies carried out in Strata Mechanics Research Institute of the Polish Academy of Sciences indicate the proportionality between vectors of horizontal displacement and the vector of surface slope. The differences practically relate to the value of proportionality coefficient B, whose estimated values in currently realized design projects for mining industry range between 0.23r to 0.42r for deep exploitations, whereas in the present article the values of 0.33r and 0.47r were obtained for two instances of shallow exploitation. Furthermore, observations on changes of horizontal displacement vectors with face advancement indicated the possibility of existence of COG zones above the mined-out field, which proved the conclusions of hitherto carried out research studies (Tajduś 2013).

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Gold mining industry in Russia and its regions

Regional Economics Theory and Practice ◽

10.24891/re.17.10.1822 ◽

2019 ◽

Vol 17 (10) ◽

pp. 1822-1833

Author(s):

Sn.P. Mongush ◽

◽

T.M. Oidup ◽

Keyword(s):

Gold Mining ◽

Mining Industry ◽

Its Regions

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