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  2. 地质与地球物理研究所
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  4. 中国科学院页岩气与地质工程重点实验室
Excavation-induced deformation and damage evolution of deep tunnels based on a realistic stress path

文献类型：期刊论文

作者Sun, Qihao1,2,3; Ma, Fengshan2,3; Guo, Jie2,3; Zhao, Haijun2,3; Li, Guang1,2,3; Liu, Shuaiqi1,2,3; Duan, Xueliang1,2,3
刊名COMPUTERS AND GEOTECHNICS
出版日期2021
卷号129页码:15
关键词Tunnel excavation Stress path Excavation damaged zone Numerical modelling UDEC Support
ISSN号0266-352X
DOI10.1016/j.compgeo.2020.103843
英文摘要The stress path during underground excavation is critical to the mechanical response of rock masses, and the excavation effects in front of a tunnel face cannot be ignored. In this study, a realistic stress path model was built to capture the actual behaviour of the surrounding rock during the entire excavation process. The key technical steps of the two-dimensional excavation simulations with this method were presented. This approach was applied to characterise the deformation and damage evolution of an experimental tunnel, where the soft rock under high stress experienced severe damage. The research results revealed the evolution of the excavation-induced deformation and damage, which was in good agreement with the results of field investigations and previous research. The cause of support failure was found to be that the growth process of the excavation damage zone (EDZ) was different from the convergence displacement, and the evolution of the EDZ did not receive sufficient attention during the design of the support. Corresponding suggestions for the improvement of support designs were put forward. The proposed method could provide key information for predicting the long-term performance and determining a reasonable design for the support of tunnels exposed to a high risk of destruction.
WOS关键词CONVERGENCE-CONFINEMENT METHOD ; 2D NUMERICAL-ANALYSIS ; ROCK MASS ; SOFT ROCK ; SUPPORT ; ZONE ; SIMULATION ; FAILURE ; PRESSURE ; MINE
资助项目National Natural Science Foundation of China[41831293] ; National Natural Science Foundation of China[41877274] ; National Natural Science Foundation of China[41772341] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; International Cooperation Program of Chinese Academy of Sciences[131551KYSB20180042]
WOS研究方向Computer Science ; Engineering ; Geology
语种英语
WOS记录号WOS:000600381100007
出版者ELSEVIER SCI LTD
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/99911]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Ma, Fengshan
作者单位1.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Qihao,Ma, Fengshan,Guo, Jie,et al. Excavation-induced deformation and damage evolution of deep tunnels based on a realistic stress path[J]. COMPUTERS AND GEOTECHNICS,2021,129:15.
APA Sun, Qihao.,Ma, Fengshan.,Guo, Jie.,Zhao, Haijun.,Li, Guang.,...&Duan, Xueliang.(2021).Excavation-induced deformation and damage evolution of deep tunnels based on a realistic stress path.COMPUTERS AND GEOTECHNICS,129,15.
MLA Sun, Qihao,et al."Excavation-induced deformation and damage evolution of deep tunnels based on a realistic stress path".COMPUTERS AND GEOTECHNICS 129(2021):15.

入库方式： OAI收割

来源：地质与地球物理研究所

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