Particle-size distribution of interlayer shear zone material and its implications in geological processes - a case study in China
文献类型：期刊论文
| 作者 | Xiao, YX; Lee, CF; Wang, SJ |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2002-11-01 |
| 卷号 | 66期号:3-4页码:221-232 |
| 关键词 | interlayer shear zone particle-size distribution geological process fractal scaling |
| ISSN号 | 0013-7952 |
| 文献子类 | Article |
| 英文摘要 | A case study was carried out at the Gaobazhou dam site on the Qingjiang River in Hubei Province, Central China, to investigate the particle-size distribution (PSD) of interlayer shear zone material and its implications in the geological processes. Forty-six disturbed samples were taken at various representative locations within the well-characterized interlayer shear zones at the Gaobazhou dam site. The particle-size distributions of these samples were analyzed, and the mass-based approach is used for fractal scaling of the particle-size distribution curves. It is shown that all curves on the log-log scale can be approximated by two intersecting lines. Thus, each curve can be quantified by alpha(1), alpha(2), P-s, and r(s), which respectively correspond to the slopes of the two lines and the coordinates of the point of intersection. alpha(1) and alpha(2) can be replaced by fractal dimensions D-1 and D-2. The statistical analysis results reveal that Delta (=D-2-D-1) and P-s are closely related to D-1. Therefore, only D-1 and r(s) are used to characterize each curve. It is illustrated that 47 specimens are clustered into five groups with respect to r(s) and D-1. Accordingly, five categories of particle-size distributions are identified. It is found that the D-1 and r(s) values of a sample can reflect the geological processes of the interlayer shear zone. The larger the value of D-1, the higher the degree of interlayer shear experienced. The value of r(s) implies the degree of subsequent secondary geological processes, but in a rather complex way due to the differences in intensity of interlayer shear undergone. Based on this, the geological evolution processes of the interlayer shear zones are postulated, and the current status can be defined through fractal scaling of the particle-size distribution of disturbed samples. (C) 2002 Elsevier Science B.V. All rights reserved. |
| WOS关键词 | FAULT-GOUGE ; FRACTAL MODELS ; FRAGMENTATION ; ROCKS |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000178535700004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/78054]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Lee, CF |
| 作者单位 | 1.Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, YX,Lee, CF,Wang, SJ. Particle-size distribution of interlayer shear zone material and its implications in geological processes - a case study in China[J]. ENGINEERING GEOLOGY,2002,66(3-4):221-232. |
| APA | Xiao, YX,Lee, CF,&Wang, SJ.(2002).Particle-size distribution of interlayer shear zone material and its implications in geological processes - a case study in China.ENGINEERING GEOLOGY,66(3-4),221-232. |
| MLA | Xiao, YX,et al."Particle-size distribution of interlayer shear zone material and its implications in geological processes - a case study in China".ENGINEERING GEOLOGY 66.3-4(2002):221-232. |
入库方式： OAI收割
来源：地质与地球物理研究所
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