Terrain surface depressions as a function of cohesion as well as unconfined compressive strength and indirect tensile strength of rocks in terms of modelling the deformation of rock mass in construction in mining areas

• Autorzy: Paleczek Witold

Identyfikatory

DOI

10.17512/bozpe.2022.11.14

• Języki publikacji: EN

Abstrakty

EN

The results of approximation of the settlement function of two known theories, i.e. the Knothe-Budryk theory and the Chudek-Stefański theory, have been presented. They concern the effects of under-ground mining on the surface and rock mass. The depression function, determined in these theories with the use of integral formulas, has been approximated to the algebraic form, in such a manner so that it was not necessary to take advantage of the integral calculus, at the same time taking into account the mean geomechanical values of the rock mass. Empirical data obtained from 34 types of rocks acquired from 16 drilling and research holes of the same rock mass allowed creating a correlation between the radius of the main influences and cohesion, unconfined compressive and indirect tensile strength of rocks, as well as the mean volumetric weight of rock mass. The obtained mathematical dependencies allow calculating the depression of land surface on the basis of the known geometry of excavations as well as their depth of deposition, and the already mentioned rock mass parameters. The differences between the results obtained from integral formulas and the obtained approximation formulas have been compared. The presented solutions are used in modelling land surface de-formations due to underground exploitation of deposits resulting from the needs of conducting analyses concerning construction in mining areas, without the need to use an integral calculus.

Słowa kluczowe

EN

numerical modelling; integral and approximate formulas; Knothe-Budryk theory; Chudek-Stefański theory; construction in mining areas

PL

modelowanie numeryczne; wzory całkowe i przybliżone; teoria Knothego-Budryka; teoria Chudka-Stefańskiego; budownictwo na terenach górniczych

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Budownictwo o Zoptymalizowanym Potencjale Energetycznym
• Rocznik: 2022
• Tom: Vol. 11
• Strony: 123--128
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Paleczek Witold

• Czestochowa University of Technology, Poland

• https://orcid.org/0000-0003-4742-2078

Bibliografia

• 1.Borecki, M. (ed.) (1980) Protecting Surfaces against Mining Damage. Katowice, Wydawnictwo Śląsk.
• 2.Chudek, M. & Stefański, L. (1987) Theoretical approach to the impact of underground mining of deposits on the deformation of the terrain surface while taking into account the stratified structure of the rock mass. Zeszyty Naukowe Politechniki Śląskiej, Górnictwo Series, 145, 13-62.
• 3.Knothe, S. (1984) Forecasting the Impacts of Mining Exploitation. Cieszyn, Wydawnictwo Śląsk.
• 4.Kwiatek, J. (ed.) (1998) Protecting constructions in mining areas. Katowice, Wydawnictwo Głównego Instytutu Górnictwa.
• 5.Paleczek, W. (2007) Method of determining the size and extent of deformation of terrain surface caused by underground mining of deposits, taking into account the geomechanical properties of rock mass components. Polish Academy of Sciences, Committee of Civil and Water Engineering, Institute of Fundamental Technological Problems, Study of the Scope of Engineering 58, Warsaw.
• 6.Paleczek, W. (2013) Modelling the deformation of the terrain surface as a result of underground mining exploitation in the aspect of construction in mining areas. Częstochowa, Wydawnictwo Politechniki Częstochowskiej.
• 7.Paleczek, W. (2020a) On the functions of the relationships of the radius of the range of the main influences in the application for the modelling of vertical displacements of a terrain surface as a result of underground mining of bedded deposits, taking into account the geomechanical properties of the rock mass for the purposes of analyses in the field of construction in mining areas. Zeszyty Naukowe Politechniki Częstochowskiej, Budownictwo 26, 133-139.
• 8.Paleczek, W. (2020b) On approximating the function of terrain surface settlement as a result of underground mining of deposits, taking into account the geomechanical data of the rock mass for the needs of modelling concerning construction in mining areas. Zeszyty Naukowe Politechniki Częstochowskiej, Budownictwo 26, 126-132.
• 9.Paleczek, W. (2021) On the depressions of the terrain surface as a function of the ad-hoc compressive strength and the softening coefficient of rocks when modelling the deformation of a rock mass concerning construction in mining areas. Zeszyty Naukowe Politechniki Częstochowskiej, Budownictwo 27, 189-193.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).