IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems
Liu, Gang1; Ma, Fengshan2; Zhang, Maosheng3; Guo, Jie2; Jia, Jun1
2022-01-11
Source PublicationENGINEERING COMPUTATIONS
ISSN0264-4401
Pages22
AbstractPurpose Continua and discontinua coexist in natural rock materials. This paper aims to present an improved approach for addressing the mechanical response of rock masses based on the combined finite-discrete element method (FDEM) proposed by Munjiza. Design/methodology/approach Several algorithms have been programmed in the new approach. The algorithms include (1) a simpler and more efficient algorithm to calculate the contact force; (2) An algorithm for tangential contact force closer to the actual physical process; (3) a plastic yielding criterion (e.g. Mohr-Coulomb) to modify the elastic stress for fitting the mechanical behavior of elastoplastic materials; and (4) a complete code for the mechanical calculation to be implemented in Matrix Laboratory (MATLAB). Findings Three case studies, including two standard laboratory experiments (uniaxial compression and Brazilian split test) and one engineering-scale anti-dip slop model, are presented to illustrate the feasibility of the Y-Mat code and its ability to deal with multi-scale rock mechanics problems. The results, including the progressive failure process, failure mode and trajectory of each case, are acceptable compared to other corresponding studies. It is shown that, the code is capable of modeling geotechnical and geological engineering problems. Originality/value This article gives an improved FDEM-based numerical calculation code. And, feasibility of the code is verified through three cases. It can effectively solve the geotechnical and geological engineering problems.
KeywordY-Mat code Combined FDEM Uniaxial compression test Brazilian split test Anti-dip slope Progressive failure process
DOI10.1108/EC-12-2020-0741
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China
WOS KeywordUNIAXIAL COMPRESSIVE STRENGTH ; STABILITY ANALYSIS ; MODELS
Language英语
Funding ProjectSecond Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0904] ; National Key Research and Development Program of China[2018YFC1505301] ; International Cooperation Program of Chinese Academy of Sciences[131551KYSB20180042] ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China[DD20190714]
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China
WOS Research AreaComputer Science ; Engineering ; Mathematics ; Mechanics
WOS SubjectComputer Science, Interdisciplinary Applications ; Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics
WOS IDWOS:000740933400001
PublisherEMERALD GROUP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/103973
Collection页岩气与地质工程院重点实验室
Corresponding AuthorMa, Fengshan
Affiliation1.Xian Ctr Geol Survey CGS, Key Lab Geohazards Loess Area, Xian, Peoples R China
2.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing, Peoples R China
3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Peoples R China
Recommended Citation
GB/T 7714
Liu, Gang,Ma, Fengshan,Zhang, Maosheng,et al. Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems[J]. ENGINEERING COMPUTATIONS,2022:22.
APA Liu, Gang,Ma, Fengshan,Zhang, Maosheng,Guo, Jie,&Jia, Jun.(2022).Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems.ENGINEERING COMPUTATIONS,22.
MLA Liu, Gang,et al."Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems".ENGINEERING COMPUTATIONS (2022):22.
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