Creation and justification of convergent technologies for underground mining of thick solid mineral deposits

Trubetskoy, K. N.; Galchenko, Yu. P.; Myaskov, A. V.; Еременко, В. А.

doi:10.17580/gzh.2019.05.01

Cited by 13 publications

(9 citation statements)

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“…From the evidence of the in-situ research, numerical modeling, physical simulation and calibration of the numerical models, the influence of geometrics of underground excavations in the conventional and new convergent technologies of underground mining on the rate of change in the natural stress field has been determined (Fig. 4) [14][15][16][17][18].…”

Section: Resultsmentioning

confidence: 99%

Evolution of secondary stress field during underground mining of thick ore bodies

Galchenko¹,

Еременко²

2021

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Emergence of a new biological species in the biosphere of the Earth -Homo Sapience -which evolves and lives off the natural balance of solar energy has initiated a new form of the biosphere developmentan anthropogenic crisis. Such crisis arose in all ages of civilization. The crises had different nature and always the same cause: the discordance between consumption level and structure and resource capacities of the planet. At the present-day stage of evolution, we again have to deal with the crisis of the geosphere. The modern anthroposphere disturbs or absorbs the geosphere (atmosphere, hydrosphere and lithosphere) at the scale which is globally comparable with the natural protection capability of the geosphere and even exceeds these capacities on the local level. Regarding the lithosphere as the key source of minerals and energy for the modern techno-scientific civilization, the crisis consists in the fact that health growth of population and, thus, expansion in consumption of mineral resources is assured by extensive development of subsoil use based on efficient but environmentally unsound mining technologies. It is possible to resolve this discrepancy through ecologization of the technology paradigm of the mineral sector development, which needs ecological identification of geomechanical processes running in the lithosphere in the zone of extraction of a commercial value substance from it. Methods and techniques

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Section: Resultsmentioning

confidence: 99%

Evolution of secondary stress field during underground mining of thick ore bodies

Galchenko¹,

Еременко²

2021

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“…The role and importance of using the best available technologies (BAT) in improving the overall level of economic development of the country, as well as the effectiveness of environmental protection around the world, is emphasized not only in the relevant regulatory framework, but also in numerous domestic and foreign literature [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Public Control over the Implementation of the Best Available Technologies as an Important Element of the Country’s Modern Environmental Policy

Zakondyrin¹

2020

E3S Web Conf.

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The urgent need for the formation of an open and transparent system of public control and environmental and technological assessment of the implementation and application of the best available technologies (BAT) at the largest industrial enterprises of Russia (primarily at enterprises of the Ist Hazard Category) is justified. As an effective measure for forming such a system, the possibility of introducing the national standard “Best Available Technologies. Methodological recommendations for conducting a public expert environmental and technological assessment of the introduction of BAT in enterprises” is described. For consideration and discussion of readers submitted a draft of this document, developed by the author of this article. The basic concept of the proposed document is to establish clear requirements for the procedure and procedure for conducting public audits of BAT implementation. According to the author’s idea, the recommended standard will be a comprehensive document aimed at solving a whole range of urgent problems in the field of research. It is expected that its implementation will contribute to enhancing the transparency of financial flows allocated for the implementation of the National Ecological Project, as well as its separate federal project, “Implementation of the Best Available Technologies”. A general increase in the quality, efficiency and transparency of the implemented environmental policy in the country is also expected.

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“…The natural stress was assumed as the lihostatic state σ 1 = σ 2 = σ 3 = 12.3 MPa. The properties of rocks for the calculations are given in Table . The modeling of the formation and raise of the secondary stresses used the most popular methods of underground mining [1-4 and two fundamentally new engineering approaches-frame structure and honeycomb structure mines [19,20] -justified within the fundamental research program of the Russian Science Foundation, Grant No. 19-17-00034.…”

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confidence: 99%

“…Advance formation of a frame structure (in this article, mine frame structure No. 8 [19,20]) to accommodate a future mining area in the subsoil offers a real opportunity to overcome the above-specified local dilemma as this approach allows desynchronizing processes of formation and expansion of an anthropogenically damaged zone in the subsoil and protection of this zone of geomechanical disturbance of the adjacent lithosphere, which ensure safety and efficiency of mining.…”

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“…3. Diagrams of influence exerted by conventional and new nature-like technologies of underground mining on secondary stress field: Mining methods [1-4]: 1 -block caving; 2 -sublevel caving; 2 3 -open stoping with pillars; 4 -room-and-pillar mining with paste backfill; 5 -horizontal slicing with paste backfill; 6 -room-and-pillar mining; 6 7 -honeycomb mine structure with paste backfill, 7 cemented backfill (gangue and waste)[19,20]; 8 -frame mining with paste backfill, cemented backfill (gangue and waste)[19,20]; I-III -categories of rock mass stability (stable, medium stable and unstable); Еm -influence coefficient…”

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Features of secondary stress field formation under anthropogenic change in subsoil during underground mineral mining

Galchenko¹,

Еременко²,

Kosyreva³

et al. 2020

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This article reports the studies of the secondary stress field induced by conventional and unconventional mining with nature-like technologies, including honeycomb and frame mine structures.The authors propose a new coefficient of influence for the quantitative assessment of the natural stress field distortion due to mineral mining.Using the data of mine tests, numerical modeling, physical simulation, and calibration of the developed numerical models, the diagrams of influence exerted by the parameters of a mining system on the structure of the secondary stress field are plotted. The highest effect on extension of tensile strain zones belongs to the systems of mining with caving. The weakest impact on enclosing rock mass is exercised by mining with backfilling as compared with the same or similar systems without backfill. The best index Tv = 1 is obtained in case of the new frame mine system recommended for thick and medium-thickness ore bodies in difficult geological conditions. For the honeycomb mine structure designed for extraction of rock salt and polyhalite, the resultant characteristics of the mine stability and mining impact on enclosing rock mass are also positive.

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Creation and justification of convergent technologies for underground mining of thick solid mineral deposits

Cited by 13 publications

References 0 publications

Evolution of secondary stress field during underground mining of thick ore bodies

Evolution of secondary stress field during underground mining of thick ore bodies

Public Control over the Implementation of the Best Available Technologies as an Important Element of the Country’s Modern Environmental Policy

Features of secondary stress field formation under anthropogenic change in subsoil during underground mineral mining

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