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Date submitted2021-10-08
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Date accepted2022-01-24
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Date published2022-04-29
Methodology for thermal desorption treatment of local soil pollution by oil products at the facilities of the mineral resource industry
- Authors:
- Mariya A. Pashkevich
- Marina V. Bykova
The analysis of the main environmental consequences of leaks and local spills of petroleum products at the enterprises of the mineral resource complex is presented. It is established that the problem of soil contamination with petroleum products at the facilities of the mineral resource complex and enterprises of other industries is caused by significant volumes of consumption of the main types of oil products. Based on the results of the author's previous field research, a series of experiments was carried out, consisting in modeling artificial soil pollution with petroleum products such as gasoline, diesel fuel, highly refined oil, motor oil, and transmission oil, followed by their purification by heat treatment at temperatures of 150, 200, and 250 °C. The 250 °C limit of the heating temperature was set due to the need to partially preserve the structure and quality of the soil after heat treatment to preserve its fertility. When the processing temperature rises to 450 °C, all humates are completely burned out and, as a result, productivity is lost. Confirmation is provided by the results of experiments to determine the humus content in uncontaminated soil and soil treated at different temperatures. It was found that at a maximum processing temperature of 250 °C, about 50 % of the initial organic carbon content is preserved. According to the results of the conducted experimental studies, the dependences of the required processing temperature on the concentration of petroleum products to reduce the concentration of petroleum products to an acceptable level have been established. The methodology of thermal desorption cleaning of soils with varying degrees of contamination at enterprises of the mineral resource complex is presented.
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Date submitted2016-09-04
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Date accepted2016-11-14
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Date published2017-02-22
Methodology of reducing rock bump hazard during room and rillar mining of North Ural deep bauxite deposits
- Authors:
- D. V. Sidorov
The article describes practical experience of using room and pillar mining (RAPM) under conditions of deep horizons and dynamic overburden pressure. It was identified that methods of rock pressure control efficient at high horizons do not meet safety requirements when working at existing depths, that is explained by changes in geodynamic processes during mining. With deeper depth, the geodynamic processes become more intensive and number of pillar and roof failures increase. When working at 800 m the breakage of mine structures became massive and unpredictable, which paused a question of development and implementation of tools for compliance assessment of used elements of RAPM and mining, geological, technical and geodynamic conditions of North Ural bauxite deposits and further development of guidelines for safe mining under conditions of deep horizons and dynamic rock pressure. It describes reasons of mine structure failures in workings depending on natural and man-caused factors, determines possible hazards and objects of geomechanic support. It also includes compliance assessment of tools used for calculations of RAPM structures, forecast and measures for rock tectonic bursts at mines of OAO “Sevuralboksitruda” (SUBR). It describes modernization and development of new geomechanic support of RAPM considering natural and technogenic hazards. The article presents results of experimental testing of new parameters of RAPM construction elements of SUBR mines. It has data on industrial implementation of developed regulatory and guideline documents at these mines for identification of valid parameters of RAPM elements at deep depths.
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Date submitted2016-09-06
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Date accepted2016-11-13
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Date published2017-02-22
Justified selection of a seam degassing technology to ensure safety of intensive coal mining
- Authors:
- S. V. Slastunov
- E. P. Yutyaev
The paper contains main aspects of methodological approach to objective analytic assessment of maximum permissible output of the mine faces from the viewpoint of gas factor. Analytic forecast is centered around the assessment of methane inflow into the face area from all possible sources, based on fundamental physical laws, modern tools of mathematical modeling and in-situ tests of main properties and state parameters of the gas-bearing coal formation. Objective and reliable estimation of permissible outputs is a starting point for justified selection of a seam degassing technology, that has to be based on time factor and predicted value of gas recovery from a coal seam to a degassing well. Recommendations have been formulated on the selection of degassing technology for the coal seam «Boldyrevsky» of the Kirov mine, based on the use of cutting-edge technological schemes (hydraulic fracture, carried out from development workings, etc.), successfully implemented on the mentioned site.
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Date submitted2016-09-14
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Date accepted2016-10-28
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Date published2017-02-22
Formation and development of theoretical principles for mineral resources logistics
- Authors:
- B. K. Plotkin
- M. M. Khaikin
Market transformations in Russia became foundations for formation and development of a new scientific and practical field in economics – logistics. Out of more than 30 existing definitions of logistics the authors according to their opinion have chosen the most appropriate. Logistics of mineral resources should be attributed to production (industrial) logistics. It is a proven fact that processes of supply chain management in mining industry and its infrastructure in the framework of mineral resources chain have some fundamental distinctions. Importance of material resources recycling in theory and practice of mineral resources logistics has been highlighted. Special features of merchandise assortment and classifications in the mining industry have been examined in conjunction with substantial contents of material flow. Special consideration has been given to relevant issues in the field of price formation for mining produce, in the view of specific relations between its costs and logistic procurement of the industry. Moreover, questions of inventory control in the mining industry, activity of commodity exchanges, management of mining logistics system have been addressed.
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Date submitted2014-11-22
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Date accepted2015-01-01
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Date published2015-10-26
Theoretical and methodological bases of forming a program management system for integrated development of a region
- Authors:
- S. V. Fedoseev
- Sya Chzhan
This article deals with theoretical and methodological bases of forming a program manage-ment system for integrated development of a region. The idea of a program-based management system based on a system of socio-economic transformation is presented. The given bases include monitoring emerging trends in the program management for integrated development of a region of the Russian Federation on basic parameters and involve control of the management process. The concept of forming the mechanism of program management as an integrated system is suggested.
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Date submitted2009-10-15
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Date accepted2009-12-30
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Date published2010-09-22
Geotechnical monitoring in cryolite zone. Ecological or industrial safety
- Authors:
- A. P. Popov
The article contains the principal methodological points of the technology of geotechnical monitoring of engineer constructions in the cryolite zone. By way of practical example it was shown the efficiency of its application for reduction of risks in the industrial and economic activities of Gasprom Co by means of creation of numerical models of stability of ground basements and foundations, timely control of mechanical safety of buildings and constructions, qualitative substantiated numerical forecasting and potential variant modeling of aftereffects of technical decisions for stabilization of a situation. Geotechnical monitoring in contrast to the industrial production ecological monitoring is the technology for control of mechanical safety of buildings and constructions at the stages of their designing, construction and exploitation.
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Date submitted2009-09-06
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Date accepted2009-11-14
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Date published2010-06-25
Saint Petersburg State Mining Institute (Technical University)
- Authors:
- B. Ya. Pukshansky
The basic questions and stages of economic methodology are considered: revealing of the reasons of economic events; studying of the reliable economic facts; creation of economic theories; construction of empirical economic models; statement of an economic problem; a hypothesis formulation; forecasting of certain economic events, check of accuracy of forecasts, an estimation of results of forecasts.