Power-law singularity as a possible catastrophe warning observed in rock experiments | |
Hao SW(郝圣旺); Rong F(荣峰); Lu MF(陆明富); Wang HY(汪海英); Xia MF(夏蒙棼); Ke FJ(柯孚久); Bai YL(白以龙); Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. | |
发表期刊 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES |
2013-06-01 | |
卷号 | 60页码:253-262 |
ISSN | 1365-1609 |
摘要 | The question which type of signals can be determinately related to catastrophic rupture in heterogeneous brittle media still remains open. Here we report a specific precursor of catastrophic rupture, i.e. a power-law singularity of responses, based on rock experiments. Our experimental observations show that the singularity with power exponent -Β, where Β=0.51±0.10 (mean±s.d.), appears ahead of catastrophic rupture in some rocks, and the singularity does not appear at all for gradual failure. It is indicated that the power-law singularity can emerge well only close to catastrophic rupture and thus it could serve as a specific warning for catastrophic rupture. To address the potential forewarning of imminent catastrophic rupture, a fitting process based on the data before catastrophic rupture was developed to determine the two unknowns related to the occurrence, catastrophe point UF and the power exponent -Βu. It is demonstrated that the power-law singularity appears only in the vicinity of catastrophe, and that the power-law singularity does not occur for gradual failure. |
关键词 | Power Law Singularity Catastrophic Rupture Precursor Specific Warning Earthquake Forecasting |
学科领域 | 岩体力学和土力学 |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000317802000027 |
项目资助者 | National Natural Science Foundation of China [90715001, 11021262, 10572139, 10802073]; National Basic Research Program of China (973 Program) [2007CB814800]; CAS Innovation Program |
课题组名称 | LNM材料的分子/细观统计力学行为 |
论文分区 | 二类/Q2 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/47261 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. |
推荐引用方式 GB/T 7714 | Hao SW,Rong F,Lu MF,et al. Power-law singularity as a possible catastrophe warning observed in rock experiments[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2013,60:253-262. |
APA | Hao SW.,Rong F.,Lu MF.,Wang HY.,Xia MF.,...&Bai, YL .(2013).Power-law singularity as a possible catastrophe warning observed in rock experiments.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,60,253-262. |
MLA | Hao SW,et al."Power-law singularity as a possible catastrophe warning observed in rock experiments".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 60(2013):253-262. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
IMCAS-J2013-078.pdf(1005KB) | 开放获取 | -- | 浏览 下载 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论