A physical self-similarity law describing the accelerated failure behavior of rocks
文献类型：期刊论文
| 作者 | Yang Bai-Cun1,2; Qin Si-Qing1,2; Xue Lei1; Chen Hong-Ran1,2; Wu Xiao-Wa1,2; Zhang Ke1,2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 60期号:5页码:1746-1760 |
| 关键词 | Equivalent Stress Accelerated Failure Behavior Of Rock Physical Self-similarity The Constant 1. 48 Brittle Failure Of Multiple Locked Patches |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20170512 |
| 文献子类 | Article |
| 英文摘要 | The key to predicting geological hazards is to master the evolution law of accelerated failure behavior between the volume expansion and peak strength points of rocks. Taking into account both cases of crack opening and closure, respectively, we propose a relationship between the critical scale of crack propagation and equivalent stress under the triaxial loading condition by means of fracture mechanics. When the microelement failure probability is described respectively by the Weibull's distribution function expressed by the equivalent stress and the fractal function of crack scale, a general expression between the Weibull' s shape parameter m and the fractal dimension D-f of crack distribution is derived by comparison. An interesting finding is that the strain ratio of the peak strength point to the volume expansion point is only related to m or Df. The reasonable range of m-values is [1. 0, 4. 0] for the creep or quasi-creep failure of rocks, where the strain ratio approximately equals to a constant, 1. 48. It is emphasized here that the constant 1. 48 is a physical self-similar one to describe the accelerated failure law of rocks with different scales. The case study demonstrates that the brittle failure theory of multiple locked patches developed on the basis of the accelerated failure law can be used to predict the occurrence of rockfalls, landslides and major earthquakes. In addition, a quantitative relationship between the b-value and m-value is put forward for explaining the physical implications of the b -value and discussing the feasibility of applying it to earthquake prediction. |
| WOS关键词 | RENORMALIZATION-GROUP APPROACH ; EARTHQUAKE PREDICTION ; B-VALUE ; TRIAXIAL COMPRESSION ; DEFORMATION PROCESS ; FRACTAL APPROACH ; RUPTURE PROCESS ; FINAL FAILURE ; FAULT SYSTEMS ; CREEP |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000400803000012 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/52938]  |
| 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 | Qin Si-Qing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Bai-Cun,Qin Si-Qing,Xue Lei,et al. A physical self-similarity law describing the accelerated failure behavior of rocks[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2017,60(5):1746-1760. |
| APA | Yang Bai-Cun,Qin Si-Qing,Xue Lei,Chen Hong-Ran,Wu Xiao-Wa,&Zhang Ke.(2017).A physical self-similarity law describing the accelerated failure behavior of rocks.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,60(5),1746-1760. |
| MLA | Yang Bai-Cun,et al."A physical self-similarity law describing the accelerated failure behavior of rocks".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 60.5(2017):1746-1760. |
入库方式： OAI收割
来源：地质与地球物理研究所
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