Phase field modelling of tunnel excavation damage in transversely isotropic rocks
文献类型：期刊论文
| 作者 | Lan, Zijun1,2; Chen, Weizhong1; Yuan, Jingqiang1; Huo, Mengzhe1,2; Shen, Kai1,2 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 168页码:22 |
| 关键词 | Phase field model Transversely isotropy Numerical simulation Layered rock Tunnel deformation Failure mechanism |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2024.109113 |
| 英文摘要 | Layered rocks, prevalent in geological formations, exhibit complex failure behaviours driven by pronounced anisotropy in their mechanical properties. However, the intricate failure mechanisms remain inadequately understood due to the spatial complexity of these mechanical responses. To address this challenge, this study proposes a novel phase field model tailored for layered rocks. A new strain energy decomposition method is introduced, uniquely formulated based on stress components and designed for transversely isotropic constitutive models. Numerical solutions to the coupled stress-phase field equations are obtained using user-defined element and material subroutines, implemented through a staggered solution scheme. The accuracy and robustness of the numerical approach are validated through simulations of a composite panel with a central hole under tensile loading. Additionally, the model is applied to the excavation of the layered soft rock tunnel, revealing the significant influence of bedding plane angles on displacement and stress field distributions, as well as post-excavation failure modes. Notably, the model captures the predominant shear-slip failure along bedding planes following excavation, effectively reflecting the complex mechanical interactions in layered rocks. This proposed model represents a significant advancement in understanding the failure mechanisms of layered rocks, providing a valuable tool for future geotechnical applications. |
| 资助项目 | National Natural Science Foundation of China[42293355] ; National Natural Science Foundation of China[42293353] ; National Natural Science Foundation of China[U2340229] ; National Natural Science Foundation of China[42293350] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001373075900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43403]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yuan, Jingqiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lan, Zijun,Chen, Weizhong,Yuan, Jingqiang,et al. Phase field modelling of tunnel excavation damage in transversely isotropic rocks[J]. ENGINEERING FAILURE ANALYSIS,2025,168:22. |
| APA | Lan, Zijun,Chen, Weizhong,Yuan, Jingqiang,Huo, Mengzhe,&Shen, Kai.(2025).Phase field modelling of tunnel excavation damage in transversely isotropic rocks.ENGINEERING FAILURE ANALYSIS,168,22. |
| MLA | Lan, Zijun,et al."Phase field modelling of tunnel excavation damage in transversely isotropic rocks".ENGINEERING FAILURE ANALYSIS 168(2025):22. |
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。