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Analysis on Spatial Variability of SRM Based on Real-Time CT and the DIC Method Under Uniaxial Loading

文献类型：期刊论文

作者Wu, Yanfang1,2,3; Li, Xiao1,2,3; Zhang, Luqing1,2,3; Zhou, Jian4; Mao, Tianqiao1,3; Li, Mingtao5
刊名FRONTIERS IN PHYSICS
出版日期2022-02-16
卷号10页码:9
关键词soil and rock mixture real-time CT uniaxial loading heterogeneous semi-variance
ISSN号2296-424X
DOI10.3389/fphy.2022.789068
英文摘要Soil 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.
WOS关键词DIGITAL IMAGE CORRELATION ; X-RAY CT ; TRIAXIAL COMPRESSION ; ROCK ; MICROSCALE ; TESTS ; BEHAVIORS ; EVOLUTION
资助项目National 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]
WOS研究方向Physics
语种英语
WOS记录号WOS:000764157100001
出版者FRONTIERS MEDIA SA
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/132A11/104970]  
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Wu, Yanfang; Li, Xiao
作者单位1.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
推荐引用方式
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.

入库方式： OAI收割

来源：地质与地球物理研究所

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