Particle Flow Code modeling of the mechanical behavior of layered rock under uniaxial compression

• Autorzy: Yao Nan , Ye Yi-Cheng , Hu Bin , Wang Wei-Qi , Wang Qi-Hu

Identyfikatory

DOI

10.24425/ams.2019.126279

Warianty tytułu

PL

Modelowanie właściwości mechanicznych skał warstwowych w warunkach ściskania jednoosiowego przy zastosowaniu oprogramowania Particle Flow Code(PFC)

• Języki publikacji: EN

Abstrakty

EN

In this paper, the different mechanical behaviors of layered rocks with different bedding angles during uniaxial compression tests are studied. Numerical simulation models of layered rock are validated based on laboratory tests, and uniaxial compression tests are conducted by using Particle Flow Code (PFC). Using these simulations, the uniaxial compressive strength, failure patterns, development of micro-cracks, and displacement of meso particles are analyzed. When the bedding angle is similar to the failure angle, the macro failure planes develop directly along the beddings, the bedding behavior dictates the behavior of the layered rock, reducing the compressive strength.

PL

W pracy badano właściwości mechaniczne skał warstwowych zalegających pod różnym kątem uwarstwienia w warunkach ściskania jednoosiowego. Walidację modeli symulacyjnych skał warstwowych przeprowadzono w oparciu o wyniki badań laboratoryjnych, zaś testy ściskania jednoosiowego prowadzono z użyciem pakietu Particle Flow Code (PFC). W oparciu o badania symulacyjne, analizowano wytrzy-małość skał na ściskanie jednoosiowe, modele pękania, powstawanie mikropęknięć i przemieszczenia mezo- cząstek. W przypadku gdy kąt płaszczyzny uwarstwienia ma wartość przybliżoną do kąta pęknięcia, płaszczyzny pękania w skali makro pojawiają się wzdłuż spękań, a układ warstw skalnych determinuje ich wytrzymałość na ściskanie, powodując jej obniżenie.

Słowa kluczowe

EN

layered rock; uniaxial compression test; Particle Flow Code (PFC); bedding angle; microcracks

PL

skała warstwowa; wytrzymałość na ściskanie jednoosiowe; Particle Flow Code (PFC); kąt uwarstwienia; mikropęknięcia

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2019
• Tom: Vol. 64, no. 1
• Strony: 181--196
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Yao Nan

• School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

autor

Ye Yi-Cheng

• School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
• Hubei Key Laboratory for Efficient Utilization and Agglomeration of Met Allergic Mineral Resource, Wuhan 430081, China

autor

Hu Bin

• School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

autor

Wang Wei-Qi

• School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

autor

Wang Qi-Hu

• School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)