Mobilized Mohr-Coulomb and Hoek-Brown Strength Parameters during Failure of Granite in Alxa Area in China for High-Level Radioactive Waste Disposal
文献类型：期刊论文
| 作者 | Cheng, Cheng1; Xu, Nengxiong1; Zheng, Bo2 |
| 刊名 | ENERGIES
 |
| 出版日期 | 2019-11-02 |
| 卷号 | 12期号:22页码:16 |
| 关键词 | granite HLW disposal plastic strain temperature CWFS damage process yield condition strength criterion |
| DOI | 10.3390/en12224237 |
| 英文摘要 | Strength parameters of the host rock is of paramount importance for modelling the behaviors of underground disposal repository of high-level radioactive waste (HLW). Mobilization of strength parameters should be studied for a better understanding and modelling on the mechanical behaviors of the surrounding rock, considering the effect of temperature induced by the nuclear waste. The granite samples cored from NRG01 borehole in Alxa candidate area in China for HLW disposal are treated by different temperatures (T = 20 degrees C, 100 degrees C and 200 degrees C), and then are used to carry out a series of uniaxial and tri-axial compression experiments under various confining pressures (sigma(3) = 0, 5, 10, 20, and 30 MPa) in this study. With the recorded axial stress-axial strain and axial stress-lateral strain curves, mobilization of both Mohr-Coulomb and Hoek-Brown strength parameters are analyzed with the increasing plastic shear strain. It has been found that NRG01 granite samples show generally similar cohesion weakening and friction strengthening behaviors, as well as the non-simultaneous mobilization of Hoek-Brown strength parameters (mb and s), under the effect of various treatment temperatures. Furthermore, the samples treated by higher temperatures show lower initial values of cohesion, but their initial friction angle and mb values are relatively higher. This should be mainly owing to the thermally induced cracks in the samples. This study should be helpful for a better modelling on the mechanical behaviors of NRG01 granite samples as the host rock of a possible HLW disposal repository. |
| WOS关键词 | SITU STRESS MEASUREMENTS ; DECOVALEX-III PROJECT ; NEAR-FIELD SAFETY ; BRITTLE FAILURE ; THERMAL-CONDUCTIVITY ; GEOLOGICAL DISPOSAL ; MODEL ; DEGRADATION ; REPOSITORY ; SELECTION |
| 资助项目 | Fundamental Research Funds for the Central Universities[2-9-2018-087] ; National Natural Science Foundation of China[41772326] ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of China[41772326] |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000504898500015 |
| 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 ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of China ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of 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 ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of China ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of 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 ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of China ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of 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 ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of China ; High-Level Radioactive Waste Disposal Project of the State Administration for Science, Technology and Industry for National Defense, China - National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95850]  |
| 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,Xu, Nengxiong,Zheng, Bo. Mobilized Mohr-Coulomb and Hoek-Brown Strength Parameters during Failure of Granite in Alxa Area in China for High-Level Radioactive Waste Disposal[J]. ENERGIES,2019,12(22):16. |
| APA | Cheng, Cheng,Xu, Nengxiong,&Zheng, Bo.(2019).Mobilized Mohr-Coulomb and Hoek-Brown Strength Parameters during Failure of Granite in Alxa Area in China for High-Level Radioactive Waste Disposal.ENERGIES,12(22),16. |
| MLA | Cheng, Cheng,et al."Mobilized Mohr-Coulomb and Hoek-Brown Strength Parameters during Failure of Granite in Alxa Area in China for High-Level Radioactive Waste Disposal".ENERGIES 12.22(2019):16. |
入库方式： OAI收割
来源：地质与地球物理研究所
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