Role of foliation occurrence and stress orientation on asymmetric failure in foliated rock tunnel: insight from numerical simulation
文献类型：期刊论文
| 作者 | Liu, Xufeng1; Pan, Peng-Zhi1,2; Zhou, Yangyi2; Wang, Zhaofeng1; Xu, Dingping1 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 160页码:16 |
| 关键词 | Foliated rock Deep -buried tunnel Anisotropic failure Foliation occurrence Numerical simulation |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2024.108174 |
| 英文摘要 | The failure problem of deep-buried foliated rock tunnel is very prominent, which often presents asymmetry. Moreover, this failure is closely related to foliation occurrence and in-situ stress, and its mechanism is still unclear at present. In this study, a deep buried foliated rock tunnel in a hydropower station was taken as a case, and its failure mechanism was studied by using CASRock software embedded with three-dimensional equivalent continuous mechanical model of foliated rock. On this basis, the relationship and mechanism between the failure of deep-buried foliated rock tunnel and foliation occurrence, in-situ stress and tunnel axis were systematically studied. The results indicate that when the angle between the foliation strike and the tunnel axis (gamma) is small, the surrounding rock will experience a larger range of failure. As the gamma increases, the depth and degree of failure will significantly decrease. The dip angle of foliation (theta) and the orientation of maximum principal stress determine the failure location of tunnel section. When designing foliated rock tunnels, the angle between the foliation strike and the tunnel axis (gamma) should be minimized as much as possible. When the gamma is small, more attention should be paid to the orientation of the stress concentration area and its angle with the foliation on the tunnel section after excavation, and support should be strengthened for the small angle parts. This study has important guiding significance for the design, understanding of failure mechanisms, and disaster prevention and control of foliated rock tunnels. |
| 资助项目 | National Natural Science Foundation of China[52125903] ; National Natural Science Foundation of China[52309146] ; National Natural Science Foundation of China[52339001] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001209832800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41138]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Pan, Peng-Zhi |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Northeastern Univ, Key Lab, Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xufeng,Pan, Peng-Zhi,Zhou, Yangyi,et al. Role of foliation occurrence and stress orientation on asymmetric failure in foliated rock tunnel: insight from numerical simulation[J]. ENGINEERING FAILURE ANALYSIS,2024,160:16. |
| APA | Liu, Xufeng,Pan, Peng-Zhi,Zhou, Yangyi,Wang, Zhaofeng,&Xu, Dingping.(2024).Role of foliation occurrence and stress orientation on asymmetric failure in foliated rock tunnel: insight from numerical simulation.ENGINEERING FAILURE ANALYSIS,160,16. |
| MLA | Liu, Xufeng,et al."Role of foliation occurrence and stress orientation on asymmetric failure in foliated rock tunnel: insight from numerical simulation".ENGINEERING FAILURE ANALYSIS 160(2024):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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