Study of Stress Concentration on the Contour of Underground Mine Workings

Pysmennyi, Serhii; Chukharev, Serhii; Peremetchyk, Andrii; Fedorenko, Serhii; Matsui, Anatolii

doi:10.29227/IM-2023-01-08

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Tytuł artykułu

Study of Stress Concentration on the Contour of Underground Mine Workings

Autorzy

Pysmennyi Serhii , Chukharev Serhii , Peremetchyk Andrii , Fedorenko Serhii , Matsui Anatolii

Treść / Zawartość

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Identyfikatory

DOI

10.29227/IM-2023-01-08

Warianty tytułu

Badanie koncentracji naprężeń na konturze wyrobisk kopalni podziemnych

Języki publikacji

Abstrakty

Kryvyi Rih iron ore basin consists of complex structured ore deposits and is developed by the underground method at depths of over 1000 m. The underground method is used to mine reserves of rich iron ores with a useful component content of more than 59% applying bulk ore and rock caving systems. This leads to significant changes in the stress state of the rock massif. During underground operations, mine workings are strained and in some cases destructed. As a result, enterprises are constantly increasing operating costs for maintaining mine workings, which adversely impacts the cost of production. Industrial research results demonstrate that in most cases workings fail in their upper part which is vaulted in shape. Available methods for determining the state of rocks around mine workings do not fully take into account physical and mechanical properties of the rocks in which the working is located. The developed technique allows determining not only the destructive pressure impacting the workings, but also the angle at which the destructive force acts. This technique differs from the available ones in taking into account not only mining and geological characteristics of the deposit, but also most factors of physical and mechanical properties of rocks. This technique helps to choose a rational place for driving mine workings at the stage of design, thus avoiding significant additional cost for their maintenance.

W kopalni Krzywy Róg występują złoża rudy o złożonej strukturze, wydobywane metodą podziemną z głębokości ponad 1000 m. Stosując systemy zawałowe eksploatuje się złoża bogatych rud żelaza o zawartości składników użytecznych powyżej 59%. Prowadzi to do znacznych zmian stanu naprężeń masywu skalnego. Podczas prac podziemnych wyrobiska kopalniane podlegają naprężęniom, a w niektórych przypadkach ulegają zniszczeniu. W efekcie przedsiębiorstwa stale podwyższają koszty eksploatacji wyrobisk górniczych, co niekorzystnie wpływa na koszty produkcji. Wyniki badań przemysłowych wskazują, że w większości przypadków wyrobiska zawodzą w swojej górnej części. Dostępne metody określania stanu skał wokół wyrobisk górniczych nie uwzględniają w pełni właściwości fizycznych i mechanicznych skał, w których znajduje się wyrobisko. Opracowana technika pozwala na określenie nie tylko ciśnienia destrukcyjnego działającego na wyrobiska, ale również kąta działania siły destrukcyjnej. Technika ta rożni się od dostępnych tym, że uwzględnia nie tylko cechy górniczo-geologiczne złoża, ale także większość czynników właściwości fizykomechanicznych skał. Technika ta pozwala już na etapie projektowania na dobór racjonalnych miejsc prowadzenia wyrobisk górniczych, unikając w ten sposób znacznych dodatkowych kosztów ich utrzymania.

Słowa kluczowe

stress working vault of stable equilibrium stability ultimate strength rocks

naprężenie praca sklepienie równowagi stabilnej ciśnienie stabilność wytrzymałość graniczna skały

Wydawca

Polskie Towarzystwo Przeróbki Kopalin

Czasopismo

Inżynieria Mineralna

Rocznik

2023

Tom

no. 1

Strony

69--78

Opis fizyczny

Bibliogr. 48 poz., rys., tab., zdj.

Twórcy

autor

Pysmennyi Serhii

psvknu@gmail.com

Kryvyi Rih National University, Faculty of Mining and Metallurgy,11 Vitalii Matusevych Str., Kryvyi Rih, 50027, Ukraine

https://orcid.org/0000-0001-5384-6972

autor

Chukharev Serhii

National University of Water and Environmental Engineering, 11 Soborna Str., Rivne, 33028, Ukraine

https://orcid.org/0000-0002-4623-1598

autor

Peremetchyk Andrii

Kryvyi Rih National University, Faculty of Mining and Metallurgy,11 Vitalii Matusevych Str., Kryvyi Rih, 50027, Ukraine

https://orcid.org/0000-0001-6274-146X

autor

Fedorenko Serhii

Kryvyi Rih National University, Faculty of Mining and Metallurgy,11 Vitalii Matusevych Str., Kryvyi Rih, 50027, Ukraine

https://orcid.org/0000-0001-5753-9603

autor

Matsui Anatolii

Central Ukrainian National Technical University, 8, Prospekt Universytetskyi, Kropyvnytskyi, 25006, Ukraine

https://orcid.org/0000-0001-5544-0175

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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)

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-51ba59b0-d96f-468d-b619-9fee3fd4a62a