Nazarenko V.O., Brui.H.V., Kuchin O.S. Determination of design indicators of earth surface deformations for mineable buildings and structures

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Parent Category: Geo-Technical Mechanics, 2023

Category: Geo-Technical Mechanics, 2023, Issue 167

 

Geoteh. meh. 2023, 167, 119-128

https://doi.org/10.15407/geotm2023.167.119 

 

DETERMINATION OF DESIGN INDICATORS OF EARTH SURFACE DEFORMATIONS FOR MINEABLE BUILDINGS AND STRUCTURES

¹Nazarenko V.O., ¹Brui.H.V., ²Kuchin O.S.

¹Technical University "Metinvest Polytechnic", ²Dnipro University of Technology

UDC 622.1:622.834(083.74)

Language: English

Abstract.  Coal is one of the main sources of energy in Ukraine. Underground coal mining is concentrated in the areas of Eastern and Central Donbas, Western Donbas, and in the Lviv-Volyn region. Development of coal seams leads to displacement of rocks and uneven subsidence of the surface. Surface movements and deformations cause serious damage to the environment. They affect residential and industrial infrastructure, and can cause destruction or disruption of operating conditions. Risks to surface structures can be reduced by predicting subsidence and surface deformation over underground workings. In Ukraine, the method of typical subsidence and deformation distribution functions is used for forecasting. This is a simple and universal method, but it does not take into account the differences in deformations in different zones of the shear trough depending on the direction of movement of the face. For this reason, incorrect predictive estimates of the impact of mining operations on the earth's surface, man-made natural, industrial and civilian objects arise. This paper presents a methodology for determining the estimated deformations of the foundations of civilian buildings that are being faked, taking into account the assessment of the estimated impact of mining operations, which takes into account the peculiarities of the formation of the shear trough in space and time. This methodology was developed to supplement and clarify the "Temporary technical conditions for the protection of structures and natural objects from the impact of underground mining operations. KD 12.00159226.013-95" for the conditions of underground mining of coal seams in the Western Donbas, as well as other deposits with similar conditions and parameters of the earth surface displacement process. It is based on modern concepts of rock and earth surface movements during underground mining of coal seams with horizontal and gentle rock occurrence; results of analysis of numerous instrumental surveying observations, including frequency ones, at observation stations of mines in Western Donbas. The obtained regularities allow for a more objective selection and application of protection measures for civil buildings. This reduces the risks during the operation of buildings, makes it possible to plan repair and restoration work, and to make a rea-sonable assessment of buildings and territories in the real estate market.
Keywords: coal seams, longwall, surface subsidence, deformations, buildings and structures, displacement trough.

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About the authors:

Nazarenko Valentyn Oleksiiovych, Doctor of Technical Sciences (D.Sc.), Professor, Professor of the Department of Mining, Technical University “Metinvest Polytechnic”, Zaporizhzhia, Ukraine, valentyn.nazarenko@mipolytech.education

Brui Hanna Valeriivna, Candidate of Technical Sciences (Ph.D.), Associate Professor, Associate Professor of the Department of Mining, Technical University “Metinvest Polytechnic”, Zaporizhzhia, Ukraine, hanna.brui@mipolytech.education

Kuchin Oleksandr Serhiiovych, Doctor of Technical Sciences (D.Sc.), Dnipro University of Technology (NTU "DP"), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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