| 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.
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| Source Publication | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
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| 2013-06-01 | |
| Volume | 60Pages:253-262 |
| ISSN | 1365-1609 |
| Abstract | 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. |
| Keyword | Power Law Singularity Catastrophic Rupture Precursor Specific Warning Earthquake Forecasting |
| Subject Area | 岩体力学和土力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000317802000027 |
| Funding Organization | National Natural Science Foundation of China [90715001, 11021262, 10572139, 10802073]; National Basic Research Program of China (973 Program) [2007CB814800]; CAS Innovation Program |
| Department | LNM材料的分子/细观统计力学行为 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47261 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. |
| Recommended Citation 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. |
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