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A Dimensional Analysis Method for Improved Load-Unload Response Ratio

文献类型：期刊论文

作者Liu Y(刘月); Yin XC(尹祥础)
刊名PURE AND APPLIED GEOPHYSICS
出版日期2018-02-01
卷号175期号:2页码:633-645
关键词Load-unload response ratio dimensional analysis pi-theorem prospectively seismic hazard evaluation
ISSN号0033-4553
DOI10.1007/s00024-017-1716-6
英文摘要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.
分类号Q3
URL标识查看原文
WOS关键词HORIZONTAL STRAIN FIELD ; EARTHQUAKE PREDICTION ; POTENTIAL EVALUATION ; DEFORMATION ; MAINLAND ; PATTERN ; SYSTEMS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000426100500009
资助机构Institute of Earthquake Forecasting CAE [2015IES0102]
源URL[http://dspace.imech.ac.cn/handle/311007/77886]  
专题力学研究所_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
推荐引用方式
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.

入库方式： OAI收割

来源：力学研究所

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