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Modeling of the earth’s surface subsidence during its undermining by stoping in coal mines

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Category: Content №6 2020

Last Updated on 22 December 2020

Published on 30 November -0001

Hits: 1972

Authors:

O.Zelenskyi, orcid.org/0000-0001-8780-587X, Kryvyi Rih Economic Institute SHEE Kyiv National Economic University named after Vadym Hetman, Kryvyi Rih, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

V.Lysenko, orcid.org/0000-0002-5200-1211, Kryvyi Rih Economic Institute SHEE Kyiv National Economic University named after Vadym Hetman, Kryvyi Rih, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M.Alekseyev, orcid.org/0000-0001-8726-7469, Dnipro University of Technology, Dnipro, Ukraine, e-mail This email address is being protected from spambots. You need JavaScript enabled to view it.

V.Vlasov, orcid.org/0000-0003-2011-1085, Dnipro University of Technology, Dnipro, Ukraine, e-mail This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2020, (6): 121 - 127

https://doi.org/10.33271/nvngu/2020-6/121

Abstract:

Purpose. To substantiate methods for modeling the earths surface subsidence in the process of its undermining by stoping in the Western Donbas mines. The methods make it possible to develop the automated system determining areas and volume of the earths surface flooding to minimize hydroecologic risks while closing down mines in the Western Donbas.

Methodology. The work substantiates methods to model processes of the earths surface subsidence helping identify areas of the flooded surface as well as its volume. Therefore, the two types of models (the interpolation model and polynomial one) to construct surfaces with a regular network have been considered. The models make it possible to get adequate idea of surfaces; moreover, they are the basis to calculate volumes, represented in the form of total unit prisms in terms of network node.

Findings. The developed mathematical and algorithmic apparatus has made it possible to develop effective models of the earths surface and an aquifer as well as to calculate the zone volumes between the reference earths surface and the consolidated one as well as between the aquifer to identify the flooded areas.

Originality. Methods to model processes of the earths surface subsidence for hydroecologic risk minimization in the process of mine closing down are substantiated.

Practical value. The work develops hardware and software to provide efficient modeling of the earths surface subsidence while mining coal seams and to reduce errors while calculating the immersed surface zone volumes.

Keywords: automation, subsidence, surface modeling, immersion, hydroecologic risks

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