IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression
Wang, Y.1; Hou, Z. Q.1; Hu, Y. Z.2
2018-10-01
发表期刊ENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
卷号77期号:20页码:12
摘要Crack damage evolution of shale is crucial to the hydraulic fracturing treatment and engineering stability. Although many effects have been done on the macroscopic characteristics of shale, yet the microscopic failure mechanism is not well understood. A uniaxial compressive test on black shale was conducted under topographic monitoring using in situ X-ray micro-tomography (A mu CT). A series of high-resolution reconstruction images were obtained by carrying out CT scans at six key points throughout the test to obtain the internal structure of shale sample. In addition, the CT values for the purpose of crack damage evolution in shale were identified. Clear 2D/3D CT images, CT value analysis and image segmentation analysis reveal that the sample experiences compression, damage, cracking, crack propagation, and collapse stages. Crack geometry and distribution in the shale sample is visualized by rendered CT images, and a combined tension and shear failure mode is observed from the fracture rose diagram. This work suggests that formation and propagation of fractures are influenced by the stratified structure and weak cementation medium between layers.
关键词Black shale Micro-tomography CT Damage evolution Failure morphology
DOI10.1007/s12665-018-7904-6
资助者National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China
关键词[WOS]MECHANICAL-PROPERTIES ; ROCKS ; STRENGTH ; BEHAVIOR
语种英语
资助项目National key technologies Research & Development program[2018YFC0808402] ; Fundamental Research Funds for the Central Universities[2302017FRF-TP-17-027A1] ; National Natural Science Foundation of China[41502294]
资助者National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National key technologies Research & Development program ; National key technologies Research & Development program ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号WOS:000447418700003
出版者SPRINGER
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89183
专题页岩气与地质工程院重点实验室
通讯作者Wang, Y.
作者单位1.Univ Sci & Technol Beijing, Beijing Key Lab Urban Underground Space Engn, Minist Educ HighEfficient Min & Safety Met, Key Lab,Dept Civil Engn,Sch Civil & Resource Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
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GB/T 7714
Wang, Y.,Hou, Z. Q.,Hu, Y. Z.. In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression[J]. ENVIRONMENTAL EARTH SCIENCES,2018,77(20):12.
APA Wang, Y.,Hou, Z. Q.,&Hu, Y. Z..(2018).In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression.ENVIRONMENTAL EARTH SCIENCES,77(20),12.
MLA Wang, Y.,et al."In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression".ENVIRONMENTAL EARTH SCIENCES 77.20(2018):12.
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