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A Dimensional Analysis Method for Improved Load-Unload Response Ratio
Liu Y(刘月); Yin XC(尹祥础)
2018-02-01
发表期刊PURE AND APPLIED GEOPHYSICS
卷号175期号:2页码:633-645
ISSN0033-4553
摘要The load-unload response ratio (LURR) method is proposed to measure the damage extent of source media and the criticality of earthquake. Before the occurrence of a large earthquake, anomalous increase in the time series of LURR within the certain temporal and spatial windows has often been observed. In this paper, a dimensional analysis technique is devised to evaluate quantitatively the magnitude and time of the ensuing large earthquake within the anomalous areas derived from the LURR method. Based on the pi-theorem, two dimensionless quantities associated with the earthquake time and magnitude are derived from five parameters (i.e. the seismic energy (E (S)), the average seismic energy (E (W)), the maximum value of LURR's seismogenic integral (I (PP)), the thickness of seismogenic zone (h), the time interval from I (PP) to earthquake (T (2)), and the shear strain rate ()). The statistical relationships between the earthquakes and the two dimensionless quantities are derived by testing the seismic data of the 50 events of M4.5 similar to 8.1 occurred in China since 1976. In earthquake prediction, the LURR method is used to detect the areas with anomalous high LURR values, and then our dimensional analysis technique is applied to assess the optimal critical region, magnitude, and time of the ensuing event, when its seismogenic integral is peaked (I (PP)). As study examples, we applied this approach to study four large events, namely the 2012 M (S)5.3 Hami, 2015 M (S)5.8 Alashan, 2015 M (S)8.1 Nepal earthquakes, and the 2013 Songyuan earthquake swam. Results show that the predicted location, time, and magnitude correlate well with the actual events. This provides evidence that the dimensional analysis technique may be a useful tool to augment current predictive power of the traditional LURR approach.
关键词Load-unload response ratio dimensional analysis pi-theorem prospectively seismic hazard evaluation
DOI10.1007/s00024-017-1716-6
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000426100500009
关键词[WOS]HORIZONTAL STRAIN FIELD ; EARTHQUAKE PREDICTION ; POTENTIAL EVALUATION ; DEFORMATION ; MAINLAND ; PATTERN ; SYSTEMS
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
项目资助者Institute of Earthquake Forecasting CAE [2015IES0102]
论文分区Q3
力学所作者排名2
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77886
专题非线性力学国家重点实验室
作者单位1.[Liu, Yue
2.China Earthquake Adm, Inst Earthquake Forecasting, 63 Fuxing Rd, Beijing 100036, Peoples R China
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100019, Peoples R China
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GB/T 7714
Liu Y,Yin XC. A Dimensional Analysis Method for Improved Load-Unload Response Ratio[J]. PURE AND APPLIED GEOPHYSICS,2018,175(2):633-645.
APA 刘月,&尹祥础.(2018).A Dimensional Analysis Method for Improved Load-Unload Response Ratio.PURE AND APPLIED GEOPHYSICS,175(2),633-645.
MLA 刘月,et al."A Dimensional Analysis Method for Improved Load-Unload Response Ratio".PURE AND APPLIED GEOPHYSICS 175.2(2018):633-645.
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