Direct Shear Experimental Study on the Mobilized Dilation Behavior of Granite in Alxa Candidate Area for High-Level Radioactive Waste Disposal
文献类型：期刊论文
| 作者 | Cheng, Cheng1; Li, Xiao2; Xu, Nengxiong1; Zheng, Bo2 |
| 刊名 | ENERGIES
 |
| 出版日期 | 2020 |
| 卷号 | 13期号:1页码:16 |
| 关键词 | dilation angle HLW disposal direct shear experiment normal stress plastic shear strain constitutive model |
| DOI | 10.3390/en13010122 |
| 英文摘要 | Dilation 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. |
| WOS关键词 | SITU STRESS MEASUREMENTS ; BRITTLE ROCK ; THERMAL-CONDUCTIVITY ; GEOLOGICAL DISPOSAL ; FIELD ASSESSMENT ; STRENGTH ; DILATANCY ; DAMAGE ; MODEL ; EVOLUTION |
| 资助项目 | Fundamental 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 |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000520425800122 |
| 出版者 | MDPI |
| 资助机构 | 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 ; 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 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95483]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Cheng, Cheng |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：地质与地球物理研究所
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