Geoecological aspects of stress-strain state modeling results of Leninsky coal deposit (Kuzbass, Russia)

Manevich, A. I.; Kolikov, K. S.; Egorova, E. A.

doi:10.2205/2019es000663

Russ. J. Earth Sci.

2019

DOI: 10.2205/2019es000663

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Geoecological aspects of stress-strain state modeling results of Leninsky coal deposit (Kuzbass, Russia)

A. I. Manevich¹,

K. S. Kolikov²,

E. A. Egorova³

Abstract: This paper describes the analysis of numerical simulation results of the stress-strain state of Leninsky coal deposit area (Kuzbass) before and after allotment mining of mining fields specified in this article. The analysis of the influence of coal mining on the stress-strain state of rocks is performed taking into account the fault tectonics of the area. The particularities of the influence of regional stress field changes on geoecological safety are considered. The geoecological consequences of the exploitat… Show more

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2020

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Cited by 3 publications

References 12 publications

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Strategizing of transformations in the coal mining industry of Kuzbass

Мясков¹,

Alekseev²

2020

RJIE

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Preparing for the 300th anniversary of Kuzbass it is important to remember that coal mining has always been the basis of the region’s development, of building up a vast net of towns and cities, of the economic freedom of the region. Coal has always been and will forever remain the mineral wealth of Kuzbass. No other region of Russia enjoys it in such abundant concentration. Reasonable exploration of this resource, its mining and processing ensure the future development of the region, contributing to many other social, industrial and infrastructural projects. Simultaneously, the widespread demonization of coal has recently been increasing due to climate and environment changes interpreted and promoted by populist ecological movements. So coal mining and coal generation are blamed for all the environmental disasters on the Earth. At the same time coal as the main energy carrier occupies less place in the fuel and energy balance of Russia. Thus, strategizing of coal mining industry of Kuzbass as the leading coal region of the country is the acute problem both from the scientific and practical viewpoint. The way it is solved will determine the life and the vector of development of an important region of Russia. The article outlines the basic problems of development of coal industry, the trends affecting the current situation at the energy markets and the situation in the coal mining industry of Kuzbass.

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Strategizing of transformations in the coal mining industry of Kuzbass

Мясков¹,

Alekseev²

2020

RJIE

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Evaluation of the influence of aerodynamic aging of production on aerological risks on coal mines

Skopintseva

Balovtsev

2020

Gorn. inf.-anal. bull.

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The results of a study of the aerodynamic aging of mine workings are presented. It is established that the local workings located in the zone of active manifestation of rock pressure are most deformed. The average rate of increase in their resistance reaches 0.0112 N×s2 / m9×yr, and the degree of increase in their resistivities over 4-9 years of existence reaches 7-8 times. The rate of aging of the mine workings is much lower than that of the local workings, averaging 0.0014 N×s2/m9×year for the inclined workings on average over the entire period of their existence, and 0.0009 N×s2/m9×year for horizontal ones. The degree of increase in the resistivity of capital workings for 12-25 years of their existence reaches 3 times. The workings were ranked by relative aerological risk indicator Rac by aerodynamic aging factor. The calculations showed that the average value of the relative aerological risk indicator for the aerodynamic aging factor of the Rac mine workings for the local haul drifts was 0.541; for precinct ventilation drifts - 0.842; for capital inclined workings - 0.172; for capital horizontal workings - 0.101. When assessing the risk of gassing of workings, it is necessary to take into account data on the aerodynamic aging of mine workings.

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Modeling of the stress-state longwall face during coal mining with the technology of roof management complete drop and stowing

Mazina

Stelmakhov

Mullagalieva

2020

Gorn. inf.-anal. bull.

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Underground mining of coal deposits has a negative impact on all components of the environment. When developing a coal deposit, it is coal mining technology that determines the scale and consequences of the negative impact. Changes in the stress-strain state of the geo-environment can lead to a violation of the hydrological regime, increased gas emission from the host rocks, the initiation of gas-dynamic processes. Choice of roofing management technology - as a geotechnological method of natural and technical system management determines the environmental friendliness of coal mining and creates safety conditions. The article deals with the technology of roofing control during coal production. For this purpose mathematical modeling and analysis of stress-strain state of the bottomhole part of the coal bed for the conditions of S.M. Kirov is performed. As a result of modeling, two technologies of roof control were analyzed - complete caving and stowing. For the worked out clearing leaves filled with either caving rocks or stowing material, there are characteristic unloading zones in the massif to be worked and overworked, as well as pressure reference zones, which fall on the parts of the pillars associated with the lava. It was found out that the application of the stowing technology creates conditions for minimization of gravitational stresses in the geoenvironment, as well as significantly reduces the potential energy of form change.

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Geoecological aspects of stress-strain state modeling results of Leninsky coal deposit (Kuzbass, Russia)

Cited by 3 publications

References 12 publications

Strategizing of transformations in the coal mining industry of Kuzbass

Strategizing of transformations in the coal mining industry of Kuzbass

Evaluation of the influence of aerodynamic aging of production on aerological risks on coal mines

Modeling of the stress-state longwall face during coal mining with the technology of roof management complete drop and stowing

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