Analyzing the Stability of Rock Surrounding Deep Cross-Tunnels Using a Dynamic Velocity Field
文献类型：期刊论文
| 作者 | Xiao, Yaxun3; Chen, Shujie1,3; Wang, Zhaofeng3; Liu, Liu3; Du, Canxun2,4 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 15期号:20页码:21 |
| 关键词 | deep cross-tunnel stability analysis velocity inversion excavation-damaged zone CASRock |
| DOI | 10.3390/su152015139 |
| 英文摘要 | With the increasing number of deep rock engineering projects, many different types of tunnels have emerged, such as cross-tunnels. These tunnels intersect with each other in rock, which causes potential safety hazards. We must analyze the stability of the surrounding rock, to ensure worker safety. This article presents a method for dynamically assessing the stability of the surrounding rock in deep-buried cross-tunnels. The method consists of two main analysis steps: (1) P-wave velocity field inversion; and (2) Stability analysis of the surrounding rock. The P-wave velocity field inversion involves inverting the S-wave velocity field by Rayleigh wave and inverting the P-wave velocity field by adjoint state traveltime tomography. Then, a method of stability analysis is proposed which is used to update the mechanical properties of the rock (based on the continuously updated wave velocity field). The elastic modulus of the surrounding rock is approximated throughout the excavation process. CASRock V1.0 (Cellular Automation Software for engineering Rockmass fracturing processes) is used to assess rock damage via the equivalent plastic shear strain and local energy release rate. The new method is used to analyze the stability of a new tunnel excavated in Jinping (in China). The results reveal the severity and spatial distribution of the damage caused. The yield depth is concentrated near the sidewalls, while the top and bottom of the tunnel exhibit a smaller depth. The yield depths present a particular pattern of change (high-low-high-low) with increasing distance from tunnel #2. Finally, this research enriches our understanding of excavating deep cross-tunnels and makes an important contribution to improving worker safety in deep cross-tunnels. |
| 资助项目 | We would like to express our sincere gratitude to those who made efforts in reviewing and editing this article. |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001089553900001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39728]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Zhaofeng; Liu, Liu |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.China Huaneng Grp R&D Ctr, Room A312,3rd Floor,Bldg 6,Fuxingmennei St, Beijing 100031, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 4.Huaneng Tibet Yarlungzangbo River Hydropower Dev &, 12,Beijing West Rd, Lhasa 850008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Yaxun,Chen, Shujie,Wang, Zhaofeng,et al. Analyzing the Stability of Rock Surrounding Deep Cross-Tunnels Using a Dynamic Velocity Field[J]. SUSTAINABILITY,2023,15(20):21. |
| APA | Xiao, Yaxun,Chen, Shujie,Wang, Zhaofeng,Liu, Liu,&Du, Canxun.(2023).Analyzing the Stability of Rock Surrounding Deep Cross-Tunnels Using a Dynamic Velocity Field.SUSTAINABILITY,15(20),21. |
| MLA | Xiao, Yaxun,et al."Analyzing the Stability of Rock Surrounding Deep Cross-Tunnels Using a Dynamic Velocity Field".SUSTAINABILITY 15.20(2023):21. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。