In situ X-ray micro-CT for investigation of damage evolution in black shale under uniaxial compression
文献类型：期刊论文
| 作者 | Wang, Y.1; Hou, Z. Q.1; Hu, Y. Z.2 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 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. |
| WOS关键词 | MECHANICAL-PROPERTIES ; ROCKS ; STRENGTH ; BEHAVIOR |
| 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研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000447418700003 |
| 出版者 | SPRINGER |
| 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 |
| 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. |
入库方式： OAI收割
来源：地质与地球物理研究所
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