IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Analysis on Spatial Variability of SRM Based on Real-Time CT and the DIC Method Under Uniaxial Loading
Wu, Yanfang1,2,3; Li, Xiao1,2,3; Zhang, Luqing1,2,3; Zhou, Jian4; Mao, Tianqiao1,3; Li, Mingtao5
2022-02-16
Source PublicationFRONTIERS IN PHYSICS
ISSN2296-424X
Volume10Pages:9
AbstractSoil and rock mixture (SRM) consists of high-strength rock blocks and small-grained soils, which depend seriously on the rock size and the heterogeneity of structure. Because of inhomogeneous cementation between rock blocks, complex granulometric composition, and random distribution of rock blocks, these SRMs usually cause problems. Investigation of the localized deformation is critical for successful engineering designs, engineering safety assessment. In this work, uniaxial compression testing on the SRM with a rock block percentage of 40% (mass ratio) is performed under real-time computed tomography (CT) combined with digital image correlation (DIC) technology. Based on radial strain fields and shear fields, heterogeneity of strain fields and rock block motion is analyzed quantitatively by semi-variance. The results show that rock block is the main factor controlling the shear band geometry distribution. A localization strain band usually occurs along the soil and rock interfaces. From the experimental results by the DIC method, the damage factor is presented to describe the damage evolution of the SRM under uniaxial compression. The method proposed in this study can be used to quantitatively analyze the deformation characteristics of the SRM sample.
Keywordsoil and rock mixture real-time CT uniaxial loading heterogeneous semi-variance
DOI10.3389/fphy.2022.789068
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 KeywordDIGITAL IMAGE CORRELATION ; X-RAY CT ; TRIAXIAL COMPRESSION ; ROCK ; MICROSCALE ; TESTS ; BEHAVIORS ; EVOLUTION
Language英语
Funding ProjectNational Natural Science Foundation of China[42002279] ; National Natural Science Foundation of China[42090023] ; National Natural Science Foundation of China[41972287] ; National Natural Science Foundation of China[11801398]
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 AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000764157100001
PublisherFRONTIERS MEDIA SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104970
Collection页岩气与地质工程院重点实验室
Corresponding AuthorWu, Yanfang; Li, Xiao
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
4.Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
5.Taiyuan Univ Technol, Coll Civil Engn, Taiyuan, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wu, Yanfang,Li, Xiao,Zhang, Luqing,et al. Analysis on Spatial Variability of SRM Based on Real-Time CT and the DIC Method Under Uniaxial Loading[J]. FRONTIERS IN PHYSICS,2022,10:9.
APA Wu, Yanfang,Li, Xiao,Zhang, Luqing,Zhou, Jian,Mao, Tianqiao,&Li, Mingtao.(2022).Analysis on Spatial Variability of SRM Based on Real-Time CT and the DIC Method Under Uniaxial Loading.FRONTIERS IN PHYSICS,10,9.
MLA Wu, Yanfang,et al."Analysis on Spatial Variability of SRM Based on Real-Time CT and the DIC Method Under Uniaxial Loading".FRONTIERS IN PHYSICS 10(2022):9.
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