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《地震学报(英文版)》 2002-01
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Experimental examination on the heterogeneity parameter C_v of earthquake precursors

WANG Kai-ying1,2) MA Sheng-li1,2) LIU Li-qiang1,2) MA Jin1,2) 1) Institute of Geology, China Seismological Bureau, Beijing 100029, China 2) Laboratory of Tectonophysics, China Seismological Bureau, Beijing 100029, China  
Two rock samples with different structures and materials were deformed under a biaxial loading system, and multi-point strain measurements were performed for each sample. The distribution of strain anomalies during the deformation and the instability process were analyzed by using Cv value put forward by WANG Xiao-qing and CHEN Xue-zhong, et al, a parameter to describe the heterogeneous distribution of earthquake precursors, so as to examine the method of Cv value and to explore its physical meaning experimentally. The result shows that the change of Cv value is correlated to the change of deformation characteristics and is an effective parameter to describe the heterogeneity of precursor distribution. Cv value increases firstly and then decreases before the instability, and the instability occurs when Cv value decreases to the level before increasing. This indicates that Cv value may be a useful parameter for earthquake prediction.
【Fund】: Chinese Joint Earthquake Sciences Foundation (9507435).
【CateGory Index】: P315.8
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Chinese Journal Full-text Database 3 Hits
1 LI Zhi-xiong 1) MA Sheng-li 2) LI Sheng-qiang1) LI Min-feng 1) LU Peng 3) CHEN Hua-jing 4) WANG Song 4) WU Ting 1)1) Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China 2) State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China 3) College of Disaster Prevention Techniques, Yanjiao 065201, China 4) China Seismic Network Center, Beijing 100036, China;Study on the physical meaning of seismic inhomogeneous degree by rock fracture experiments[J];地震学报(英文版);2005-06
2 Ma Jin,Liu Liqiang,and Ma ShengliInstitute of Geology,SSB,Beijing 100029,China;Fault Geometry and Departure of Precursors From the Epicenter[J];中国地震研究(英文版);1998-01
3 LIU Peixun, MA Jin, LIU Liqiang, MA Shengli and CHEN Guoqiang (Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China);An experimental study on variation of thermal fields during the deformation of a compressive en echelon fault set[J];自然科学进展(英文版);2007-03
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