RESEARCH ON THE VARIATION CHARACTERISTIC OF STRAIN PARAMETERS IN ZHANGJIAKOU AREA
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Graphical Abstract
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Abstract
In this study, we calculated the strain parameters, including maximum principal strain, maximum shear strain, and principal strain direction on basis of datum of Zhangjiakou extensometer, analyzed the fault characteristics of Zhangjiakou area and the change of observation environment, studied the variation characteristics of strain parameters combining with Ms≥4.0 earthquakes from 1988 to 2009 in Zhangjiakou area.
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