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Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction

文献类型:期刊论文

作者Wang YC(王裕仓); Mora P; Yin C; Place D
刊名PURE AND APPLIED GEOPHYSICS
出版日期2004
卷号161期号:9-10页码:1829-1839
通讯作者邮箱wangyc@quakes.uq.edu.au ; mora@quakes.uq.edu.an ; canyon@quakes.uq.edu.au ; place@quakes.uq.edu.au
关键词Load-Unload Response Ratio (LURR) Lattice Solid Model (LSM) numerical simulation tidal trigger earthquake prediction
ISSN号0033-4553
产权排序Univ Queensland, Dept Earth Sci, QUAKES, Brisbane, Qld 4072, Australia; Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China
通讯作者Wang, YC (reprint author), Univ Queensland, Dept Earth Sci, QUAKES, Brisbane, Qld 4072, Australia.
中文摘要Statistical tests of Load-Unload Response Ratio (LURR) signals are carried in order to verify statistical robustness of the previous studies using the Lattice Solid Model (MORA et al., 2002b). In each case 24 groups of samples with the same macroscopic parameters (tidal perturbation amplitude A, period T and tectonic loading rate k) but different particle arrangements are employed. Results of uni-axial compression experiments show that before the normalized time of catastrophic failure, the ensemble average LURR value rises significantly, in agreement with the observations of high LURR prior to the large earthquakes. In shearing tests, two parameters are found to control the correlation between earthquake occurrence and tidal stress. One is, A/(kT) controlling the phase shift between the peak seismicity rate and the peak amplitude of the perturbation stress. With an increase of this parameter, the phase shift is found to decrease. Another parameter, AT/k, controls the height of the probability density function (Pdf) of modeled seismicity. As this parameter increases, the Pdf becomes sharper and narrower, indicating a strong triggering. Statistical studies of LURR signals in shearing tests also suggest that except in strong triggering cases, where LURR cannot be calculated due to poor data in unloading cycles, the larger events are more likely to occur in higher LURR periods than the smaller ones, supporting the LURR hypothesis.
类目[WOS]Geochemistry & Geophysics
研究领域[WOS]Geochemistry & Geophysics
关键词[WOS]LURR THEORY
收录类别SCI
语种英语
WOS记录号WOS:000223745800002
源URL[http://dspace.imech.ac.cn/handle/311007/58472]  
专题力学研究所_力学所知识产出(1956-2008)
推荐引用方式
GB/T 7714
Wang YC,Mora P,Yin C,et al. Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction[J]. PURE AND APPLIED GEOPHYSICS,2004,161(9-10):1829-1839.
APA 王裕仓,Mora P,Yin C,&Place D.(2004).Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction.PURE AND APPLIED GEOPHYSICS,161(9-10),1829-1839.
MLA 王裕仓,et al."Statistical Tests of Load-Unload Response Ratio Signals By Lattice Solid Model: Implication To Tidal Triggering and Earthquake Prediction".PURE AND APPLIED GEOPHYSICS 161.9-10(2004):1829-1839.

入库方式: OAI收割

来源:力学研究所

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