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Direct Shear Experimental Study on the Mobilized Dilation Behavior of Granite in Alxa Candidate Area for High-Level Radioactive Waste Disposal
Cheng, Cheng1; Li, Xiao2; Xu, Nengxiong1; Zheng, Bo2
2020
Source PublicationENERGIES
Volume13Issue:1Pages:16
AbstractDilation behavior is of great importance for reasonable modeling of the stability of the host rock of the repository for high-level radioactive waste disposal. It is a suitable method for carrying out direct shear experiments to analyze the dilation behavior of rock with well understood physical meanings. Based on a series of direct shear experiments on granite samples from the Alxa candidate area under different normal stresses, the shear stressshear strain and shear stressnormal strain relations have been studied in detail. Five typical stages have been divided associated with the fracturing process and deformation behaviors of the granite samples during the experimental process, and the method to determine the typical stress thresholds has been proposed. It has also been found that the increasing normal stress may reduce the maximum dilation angle, and when the normal stress is relatively lower, the negative dilation angle may occur during the post-peak stage. According to the data collected from the direct shear tests, an empirical model of the mobilized dilation angle dependent on normal stress and plastic shear strain is proposed. This mobilized dilation angle has clear physical meanings and can be used in plastic constitutive models of the host rock of the repository, and this analysis can also be put forward to other types of geomechanical problems, including the deformation behaviors related to landslide, earthquake, and so on.
Keyworddilation angle HLW disposal direct shear experiment normal stress plastic shear strain constitutive model
DOI10.3390/en13010122
Funding OrganizationFundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China
WOS KeywordSITU STRESS MEASUREMENTS ; BRITTLE ROCK ; THERMAL-CONDUCTIVITY ; GEOLOGICAL DISPOSAL ; FIELD ASSESSMENT ; STRENGTH ; DILATANCY ; DAMAGE ; MODEL ; EVOLUTION
Language英语
Funding ProjectFundamental Research Funds for the Central Universities[2-9-2018-087] ; National Natural Science Foundation of China[41772326] ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China
Funding OrganizationFundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Double First Class" Fund of Beijing ; "Double First Class" Fund of Beijing ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China ; High-Level RadioactiveWaste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China
WOS Research AreaEnergy & Fuels
WOS SubjectEnergy & Fuels
WOS IDWOS:000520425800122
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95483
Collection页岩气与地质工程院重点实验室
Corresponding AuthorCheng, Cheng
Affiliation1.China Univ Geosci Beijing, Sch Engn & Technol, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Cheng, Cheng,Li, Xiao,Xu, Nengxiong,et al. Direct Shear Experimental Study on the Mobilized Dilation Behavior of Granite in Alxa Candidate Area for High-Level Radioactive Waste Disposal[J]. ENERGIES,2020,13(1):16.
APA Cheng, Cheng,Li, Xiao,Xu, Nengxiong,&Zheng, Bo.(2020).Direct Shear Experimental Study on the Mobilized Dilation Behavior of Granite in Alxa Candidate Area for High-Level Radioactive Waste Disposal.ENERGIES,13(1),16.
MLA Cheng, Cheng,et al."Direct Shear Experimental Study on the Mobilized Dilation Behavior of Granite in Alxa Candidate Area for High-Level Radioactive Waste Disposal".ENERGIES 13.1(2020):16.
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