IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Experimental research on deformation failure process of roadway tunnel in fractured rock mass induced by mining excavation
Li, Guang1,2,3; Ma, Fengshan1,2; Guo, Jie1,2; Zhao, Haijun1,2
2022-04-01
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume81Issue:8Pages:11
AbstractDeformation 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.
KeywordRoadway deformation failure Jointed rock mass Physical model test PFC2D
DOI10.1007/s12665-022-10364-2
Funding OrganizationNational 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
WOS KeywordMODEL ; MINE ; SUBSIDENCE ; SIMULATION ; STABILITY
Language英语
Funding ProjectNational Natural Science Foundation of China[42072305] ; National Natural Science Foundation of China[41877274] ; National Natural Science Foundation of China[41831293]
Funding OrganizationNational 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
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000782441000002
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105132
Collection页岩气与地质工程院重点实验室
Corresponding AuthorMa, Fengshan
Affiliation1.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
First Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
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.
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