Experimental Study on the Thermal Healing Effect on Stress-Damaged Granite
文献类型：期刊论文
| 作者 | Wu, Ruyun; Chen, Shiwan; Yang, Fubo; Li, Jiahua; Wang, Guibin; Zuo, Shuangying; Qin, Chao |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2023-06-18 |
| 关键词 | Beishan granite Thermal healing Deformation memory effect Kaiser effect Acoustic emission |
| ISSN号 | 0723-2632 |
| 英文摘要 | To study the thermal healing effect on stress-induced damage of Beishan granite, the host rock of China's high-level radioactive waste (HLW) geological disposal underground research laboratory, comprehensive experimental works were carried out. The deformation rate analysis test was carried out on granite after different stress levels and different temperature conditions (room temperature and mild temperature, 150 degrees C). Results showed that the deformation memory to the previous stress loading (stress damage) was fading after mild temperature treatment, and the Kaiser effect was also faded notably that AE activity was suppressed after mild temperature treatment, which implied stress-induced damage was recovered under mild temperature. In addition, stress-induced pores, especially large pores, were decreased markedly after mild temperature treatment characterized by the nuclear magnetic resonance measurement. Overall, the mild temperature possesses the ability to heal stress (sigma(cc) to sigma(ci), sigma(ci) to sigma(cd)) induced damage. The permeability reduction, strength enhancement, pores decreasing, and the mechanism under mild temperature were jointed analyzed, which is positive for the long-term stability and tightness of the HLW geological repository. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001009994700001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34897]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Guizhou University; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Wu, Ruyun,Chen, Shiwan,Yang, Fubo,et al. Experimental Study on the Thermal Healing Effect on Stress-Damaged Granite[J]. ROCK MECHANICS AND ROCK ENGINEERING,2023. |
| APA | Wu, Ruyun.,Chen, Shiwan.,Yang, Fubo.,Li, Jiahua.,Wang, Guibin.,...&Qin, Chao.(2023).Experimental Study on the Thermal Healing Effect on Stress-Damaged Granite.ROCK MECHANICS AND ROCK ENGINEERING. |
| MLA | Wu, Ruyun,et al."Experimental Study on the Thermal Healing Effect on Stress-Damaged Granite".ROCK MECHANICS AND ROCK ENGINEERING (2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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