In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression

doi:10.1007/s12665-018-7904-6

CORC > 地质与地球物理研究所 > 中国科学院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

	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
刊名	ENVIRONMENTAL EARTH SCIENCES
	2018-10-01
卷号	77 期号:20 页码:12
关键词	Black shale Micro-tomography CT Damage evolution Failure morphology
ISSN号	1866-6280
DOI	10.1007/s12665-018-7904-6
英文摘要	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.
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]
WOS关键词	MECHANICAL-PROPERTIES ; ROCKS ; STRENGTH ; BEHAVIOR
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000447418700003
资助机构	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
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/89183]
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	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
推荐引用方式 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.