The Effect of Unloading Path on the Tim Dependent Behavior of Beishan Granite
文献类型：期刊论文
| 作者 | Yu, Peiyang1,2; Pan, Peng-Zhi1,2; Feng, Guangliang1,2; Wang, Zhaofeng1,2; Miao, Shuting2 |
| 刊名 | LITHOSPHERE
 |
| 出版日期 | 2022 |
| 卷号 | 2022期号:1页码:15 |
| ISSN号 | 1941-8264 |
| DOI | 10.2113/2022/3112805 |
| 英文摘要 | Understanding the time-dependent characteristics of Beishan granite after excavation is critically important for the long-term stability and disaster control of the high-level radioactive waste repository. In this context, a series of creep tests under different unloading paths are designed to simulate the time-dependent behavior of rock mass after excavation. Results show that the instantaneous volume deformation under each loading step is greatly influenced by the unloading path. Moreover, the unloading path has minor effects on the creep strain. The axial and lateral creep strain is dominated by creep fracture potential, which can be characterized by a unified time-dependent fracture potential index (xi(TFPI)) for different stress states. It is observed that the creep strain generally increases with increasing xi(TFPI) In order to describe the fracture mechanism during the creep process, a damage mechanical model based on time-dependent subcritical crack growth theory is adopted. It reveals that the strain hardening behavior dominates the granite creep process, and the strain softening effect is gradually strengthened with increasing xi(TFPI). |
| 资助项目 | National Natural Science Foundation of China[52125903] |
| WOS研究方向 | Geochemistry & Geophysics ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000793029800003 |
| 出版者 | GEOSCIENCEWORLD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36619]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Pan, Peng-Zhi; Feng, Guangliang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Peiyang,Pan, Peng-Zhi,Feng, Guangliang,et al. The Effect of Unloading Path on the Tim Dependent Behavior of Beishan Granite[J]. LITHOSPHERE,2022,2022(1):15. |
| APA | Yu, Peiyang,Pan, Peng-Zhi,Feng, Guangliang,Wang, Zhaofeng,&Miao, Shuting.(2022).The Effect of Unloading Path on the Tim Dependent Behavior of Beishan Granite.LITHOSPHERE,2022(1),15. |
| MLA | Yu, Peiyang,et al."The Effect of Unloading Path on the Tim Dependent Behavior of Beishan Granite".LITHOSPHERE 2022.1(2022):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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