Ensuring Stability of Undermining Inclined Drainage Holes During Intensive Development of Multiple Gas-Bearing Coal Layers

Brigida, Vladimir; Голик, В.И.; Дмитрак, Ю. В.; Gabaraev, O.Z.

doi:10.31897/pmi.2019.5.497

Cited by 10 publications

(6 citation statements)

References 4 publications

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“…In contrast to machine learning methods or Bayesian classification models [53][54][55][56], deterministic models were used. The obtained response surfaces were visualized in "gnuplot" software [57,58], analogously with [59].…”

Section: Methodsmentioning

confidence: 99%

“…The third is the introduction of low-carbon technologies, including the formation of cadasters and technologies that reduce greenhouse gas emissions [13,14]. The fourth is digitalization of the power and extractive industries, and increasing the energy efficiency of production processes [15][16][17] involved in the development and implementation of negative emission technologies [18]. In addition, one of the dynamically developing areas in recent years is the introduction of closed-loop economy elements when improving mining and metallurgical production (when the resources circulate without the "end of life cycle" [19][20][21]).…”

Section: Introductionmentioning

confidence: 99%

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Technogenic Reservoirs Resources of Mine Methane When Implementing the Circular Waste Management Concept

Brigida,

Golik,

Voitovich

et al. 2024

Resources

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From a commercial viewpoint, mine methane is the most promising object in the field of reducing emissions of climate-active gases due to circular waste management. Therefore, the task of this research is to estimate the technogenic reservoirs resources of mine methane when implementing the circular waste management concept. The novelty of the authors’ approach lies in reconstructing the response space for the dynamics of methane release from the front and cross projections: CH4 = ƒ(S; t) and CH4 = ƒ(S; L), respectively. The research established a polynomial dependence of nonlinear changes in methane concentrations in the mixture extracted by type 4 wells when a massif is undermined as a result of mining in a full-retreat panel. And the distance from the face to the start of mining the panel is reduced by 220 m. For this reason, the emission of mine methane, in case of degasification network disruption in 15 days, can amount to more than 660 thousand m3 only for wells of type no. 4.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Technogenic Reservoirs Resources of Mine Methane When Implementing the Circular Waste Management Concept

Brigida,

Golik,

Voitovich

et al. 2024

Resources

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“…The relevance and necessity of integrated implementation of technologies and principles of distributed generation in the conditions of enterprises of the mineral resource complex are substantiated in [15]. It will also allow attracting additional investments: to ensure the stability of the elements of the degassing system [16]; to develop the blockchain platforms [17]; to participate in the provision of demand management services (with an increase in renewable energy production) [18,19] and other energy flexibility services [20,21].…”

Section: Introductionmentioning

confidence: 99%

Feasibility study of using cogeneration plants at Kuzbass coal mines

Nepsha

Voronin

Korneev

2023

PMI

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The paper considers the problem of reducing greenhouse gas emissions in the process of coal mining during the coal mine methane utilization in power supply systems. An algorithm to form recommendations for the implementation of CMM generation is presented. A simulation model for one of the Kuzbass coal mines was developed in the PowerFactory software application. The simulation model considers the uneven nature of the power consumption of mining equipment. As a result of modeling, daily power consumption profiles and voltage levels in the coal mine power supply system were determined before and after the implementation of the proposed measures. Based on the results, the technical and economic effects was estimated, which consisted in reducing the direct and indirect carbon footprint, electricity and capacity fees. It has been established that the cost of carbon dioxide emission quotas significantly affects the investment attractiveness of cogeneration projects. Based on the results, recommendations are given to stimulate the development of small generation in coal mines.

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“…The volumes of the enrichment tailings in Chile alone reach 800 million t/year, while only 0.5 kg of metals can be extracted from each ton [10]. The increasing accumulation of wastes during ore dressing changes the geochemical composition of soils [11][12][13][14][15], which results in the fertility loss of the soils. In addition, significant threats to microbial communities are created [16] by changing the composition of soil gases [17,18].…”

Section: Introductionmentioning

confidence: 99%

Reuse and Mechanochemical Processing of Ore Dressing Tailings Used for Extracting Pb and Zn

Golik,

Klyuev,

Martyushev

et al. 2023

Materials

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The increasing accumulation of rock waste obtained due to ore processing and its environmental impacts, such as acid mine drainage and elevated concentrations of heavy metals in soils, necessitates the transformation of mining technologies based on the concept of circular waste management. The research is aimed at improving the parameters of the mechanical activation effect produced on technogenic georesources, as well as at expanding the application scope of disintegrators in the field of using the partial backfill of the mined-out space when developing stratified deposits. In this regard, the research purpose was to substantiate the parameters of extracting metals from enrichment tailings using their mechanochemical activation to ensure cyclic waste management. The research involved the application of three-dimensional interpolation methods used for processing the data and the graphical representation. As a result, the following was found to be characteristic of the waste of the Sadonsky mine management. The degree of extracting zinc from pre-activated tailings increases logarithmically when the H2SO4 concentration and the NaCl proportion decrease 3.5 times. The degree of extracting lead from the activated tailings increases according to the Fourier law when decreasing the NaCl mass concentration, and an optimal range of the H2SO4 (0.38–0.51%) proportion decreases six times. One of the key results of the research is the justification of expanding the scope of applying disintegrators in the case of a directed activation influence exerted on the components of the stowing strips. The obtained results expand the understanding of the mechanism of the influence of the mechanochemical activation of dry tailings on the reactivity unevenness when extracting several metals from them.

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Ensuring Stability of Undermining Inclined Drainage Holes During Intensive Development of Multiple Gas-Bearing Coal Layers

Cited by 10 publications

References 4 publications

Technogenic Reservoirs Resources of Mine Methane When Implementing the Circular Waste Management Concept

Technogenic Reservoirs Resources of Mine Methane When Implementing the Circular Waste Management Concept

Feasibility study of using cogeneration plants at Kuzbass coal mines

Reuse and Mechanochemical Processing of Ore Dressing Tailings Used for Extracting Pb and Zn

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