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  4. 中国科学院页岩气与地质工程重点实验室
Experimental research on deformation failure process of roadway tunnel in fractured rock mass induced by mining excavation

文献类型：期刊论文

作者Li, Guang1,2,3; Ma, Fengshan1,2; Guo, Jie1,2; Zhao, Haijun1,2
刊名ENVIRONMENTAL EARTH SCIENCES
出版日期2022-04-01
卷号81期号:8页码:11
关键词Roadway deformation failure Jointed rock mass Physical model test PFC2D
ISSN号1866-6280
DOI10.1007/s12665-022-10364-2
英文摘要Deformation failure of roadways in fractured rock can lead to large-volume collapse and other engineering accidents. Failure mechanisms in fractured rock are complex and poorly understood, so to explore this issue, we simulated fractured rock masses using physical model tests in combination with numerical computations. A set of experimental techniques for roadway excavation under jointed surrounding rock included a mixed pouring-bricking method and a roadway excavation device, which can reproduce the structural characteristics of the prototype and replicate the excavation conditions of the roadway. Stress distribution characteristics of the roadway, from loading to excavation, were obtained based on strain monitoring and image acquisition, and the process of roadway deformation and failure was described in detail. A series of numerical simulations were conducted to investigate the deformation failure mechanisms of roadways under different excavation conditions. Results indicate that the deformation failure modes of roadways including collapse, rock burst, and floor heaving that were similar regardless of depth. Deformation failure modes of the roadway were determined by rock mass structure, and the deformation intensity was determined by geo-stress. Model testing and numerical simulation were consistent; hence, findings provide a theoretical basis and technical guidance for roadway engineering in fractured rock masses.
WOS关键词MODEL ; MINE ; SUBSIDENCE ; SIMULATION ; STABILITY
资助项目National Natural Science Foundation of China[42072305] ; National Natural Science Foundation of China[41877274] ; National Natural Science Foundation of China[41831293]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
语种英语
WOS记录号WOS:000782441000002
出版者SPRINGER
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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/105132]  
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, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Guang,Ma, Fengshan,Guo, Jie,et al. Experimental research on deformation failure process of roadway tunnel in fractured rock mass induced by mining excavation[J]. ENVIRONMENTAL EARTH SCIENCES,2022,81(8):11.
APA Li, Guang,Ma, Fengshan,Guo, Jie,&Zhao, Haijun.(2022).Experimental research on deformation failure process of roadway tunnel in fractured rock mass induced by mining excavation.ENVIRONMENTAL EARTH SCIENCES,81(8),11.
MLA Li, Guang,et al."Experimental research on deformation failure process of roadway tunnel in fractured rock mass induced by mining excavation".ENVIRONMENTAL EARTH SCIENCES 81.8(2022):11.

入库方式： OAI收割

来源：地质与地球物理研究所

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