Bonded-particle discrete element modeling of mechanical behavior of transversely isotropic rock

Autor:	Bona Park, Ki-Bok Min
Rok vydání:	2015
Předmět:	Surface (mathematics) Transverse isotropy Isotropy Line (geometry) Foundation (engineering) Geotechnical engineering Mechanics Geotechnical Engineering and Engineering Geology Anisotropy Discrete element method Geology Physics::Geophysics Gneiss
Zdroj:	International Journal of Rock Mechanics and Mining Sciences. 76:243-255
ISSN:	1365-1609
DOI:	10.1016/j.ijrmms.2015.03.014
Popis:	This paper presents bonded-particle discrete element modeling with embedded smooth joints for simulating the mechanical behavior of transversely isotropic rock with systematic verifications and extensions to laboratory and upscaled problems. Verification was conducted against the analytical solutions in terms of anisotropic elastic and strength behavior. The developed model was compared with laboratory observations of three rock types (gneiss, shale and schist) leading to good agreements. Bonded-particle DEM modeling successfully captured the failure patterns observed in anisotropic rock in which weak planes play a significant role. The model was upscaled to large-scale foundation problems subjected to surface line load. The study achieved reasonable agreements both for isotropic and anisotropic solutions. The results demonstrate that the bonded-particle DEM with embedded smooth joints can model the equivalent anisotropic medium and it has potential to be applied to problems of larger engineering problems in which anisotropy is important.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5d37b5d7829cdefcf08b24475d15bfda https://doi.org/10.1016/j.ijrmms.2015.03.014 Zobrazit plný text záznamu Full Text from ScienceDirect