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《Journal of Geodesy and Geodynamics》 2008-05
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PARAMETERS SENSITIVITY ANALYSIS OF COULOMB STRESS CHANGE IN STATIC STRESS TRIGGERING

Zhou Yuming1),Shan Bin2,3) and Xiong Xiong2)1) School of Earth and Space Sciences,University of Science and Technology of China,Hefei 2300262) Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 4300773) Graduate University of Chinese Academy of Science,Beijing 100049  
On the basis of on the elastic dislocation theory,we analyzed influences of the effective friction factor in the fault for the calculation of the Coulomb stress and the magnitude and birextion of the maximum principle stress of and regional stress field on the coseismic Coulomb stress changes.The results show that the above mention parameters have the influences on the coseismic Coulomb stress changes significantly to different extent.First,the Coulomb stress change is most sensitive to the regional stress direction,because the regional stress direction changes directly affect the optimum rapture planes.Secondly,Coulomb stress change is modestly sensitive to the of effective friction factor,because the friction decides the weight of normal stress change in Coulomb stress change calculation.At last,our results are insensitive to the regional stress amplitude,because the amplitude of Coulomb stress change is much smaller than that of regional stress field.
【Fund】： 中国科学院知识创新工程重要方向性项目(KZCX3-SW-153);; 国家自然科学基金(40574011)
【CateGory Index】： P315
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【Citations】
Chinese Journal Full-text Database 2 Hits
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