Excavation disturbance response of deep-buried tunnel with novel dynamic anisotropic mechanical model and failure degree index
文献类型：期刊论文
| 作者 | Zheng, Zhi2,3; Li, Ronghua3; Pan, Pengzhi2; Wang, Wei1 |
| 刊名 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 158页码:18 |
| 关键词 | True triaxial disturbance test Mechanical parameter degradation Anisotropic mechanical model Disturbance fracture degree index Excavation response analysis |
| ISSN号 | 0886-7798 |
| DOI | 10.1016/j.tust.2025.106429 |
| 英文摘要 | The current research on the failure theory of surrounding rock failure caused by excavation disturbance of deep buried engineering is seriously insufficient, especially under the combined conditions of true three-dimensional stress and excavation disturbance, which leads to unclear excavation responses and engineering disasters. Therefore, this study carried out true triaxial disturbance tests to investigate the mechanical characteristics of rock under excavation unloading and disturbance in deep engineering. Calculation methods for the anisotropic Young's modulus, cohesion, friction angle and dilation angle during rock fracture were proposed to reveal their evolutions. A dynamic anisotropic mechanical model reflecting rock degradation induced by true triaxial disturbance was further established, and the numerical program was implemented in finite difference software. Numerical simulation results with proposed model were basically consistent with laboratory tests and deep engineering field monitoring data. Based on numerical simulation, a rock disturbance fracture degree index was proposed to quantitatively evaluate the fracture location, range and failure degree of surrounding rock after engineering excavation disturbance. Compared with static excavation, disturbance excavation leads to larger deformation of surrounding rock, larger depth and degree of failure, and more energy released. |
| 资助项目 | National Natural Science Foundation of China[52469019] ; National Natural Science Foundation of China[52109119] ; Chinese Postdoctoral Science Fund Project[2022 M723408] ; Systematic Project of Guangxi Key Laboratory of Disaster Prevention and Engineering Safety[2020ZDK007] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001419890900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37000]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zheng, Zhi |
| 作者单位 | 1.Hohai Univ, Key Lab Minist Educ Geomech & Embankment Engn, Nanjing 210098, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Guangxi Univ, Coll Civil Engn & Architecture, State Key Lab Featured Met Mat & Life cycle Safety, Key Lab Disaster Prevent & Struct Safety,Minist E, Nanning 530004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Zhi,Li, Ronghua,Pan, Pengzhi,et al. Excavation disturbance response of deep-buried tunnel with novel dynamic anisotropic mechanical model and failure degree index[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2025,158:18. |
| APA | Zheng, Zhi,Li, Ronghua,Pan, Pengzhi,&Wang, Wei.(2025).Excavation disturbance response of deep-buried tunnel with novel dynamic anisotropic mechanical model and failure degree index.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,158,18. |
| MLA | Zheng, Zhi,et al."Excavation disturbance response of deep-buried tunnel with novel dynamic anisotropic mechanical model and failure degree index".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 158(2025):18. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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