Time-Dependent Behavior of Jinping Deep Marble Taking into Account the Coupling Between Excavation Damage and High Pore Pressure
文献类型：期刊论文
| 作者 | Huang, Xiang; Li, Shaojun; Xu, Dingping; Pan, Pengzhi |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 55期号:8页码:4893 |
| 关键词 | Deep marble Excavation damage High pore pressure Creep experiment Damage creep model |
| ISSN号 | 0723-2632 |
| 英文摘要 | During the operation of the Jinping II hydropower station, the rocks surrounding the headrace tunnels have undergone failure because of the time-dependent creep effect that occurs due to the high geostress present and seepage. However, a few studies of the creep deformation of deep rocks have taken into account the coupling effect between excavation damage and pore pressure. This paper reports the results of a series of triaxial creep experiments conducted on Jinping deep marble in which the coupling between excavation damage and high pore pressure was studied. The results show that the magnitude of the creep deformation, the long-term strength, and failure mode of the excavation-damaged marble vary considerably with pore pressure. That is, the pore pressure has a significant effect on the marble. A new nonlinear viscoelastic-plastic damage (VEPD) model incorporating the effect of pore pressure was subsequently developed based on the experimental data. The values of the parameters appearing in the model were then obtained using a method of Universal Global Optimization. Good consistency is found between our theoretical predictions and test data which indicates that the VEPD model can be reliably used to simulate and predict the complete creep process in excavation-damaged deep rocks. It also gives a good account of the effect of pore pressure on the creep behavior. As a result, the model provides us with a better understanding of the long-term stability of underground engineering projects. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000801832800002 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34929]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Huang, Xiang,Li, Shaojun,Xu, Dingping,et al. Time-Dependent Behavior of Jinping Deep Marble Taking into Account the Coupling Between Excavation Damage and High Pore Pressure[J]. ROCK MECHANICS AND ROCK ENGINEERING,2022,55(8):4893. |
| APA | Huang, Xiang,Li, Shaojun,Xu, Dingping,&Pan, Pengzhi.(2022).Time-Dependent Behavior of Jinping Deep Marble Taking into Account the Coupling Between Excavation Damage and High Pore Pressure.ROCK MECHANICS AND ROCK ENGINEERING,55(8),4893. |
| MLA | Huang, Xiang,et al."Time-Dependent Behavior of Jinping Deep Marble Taking into Account the Coupling Between Excavation Damage and High Pore Pressure".ROCK MECHANICS AND ROCK ENGINEERING 55.8(2022):4893. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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