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Analysis of Parameters Sensitivity of Duncan-Chang Model

YIN Rongrong, ZHU Hehua(Dept. of Naval and Civil Architectur,East China Shipbuilding Institute,Zhenjiang Jiangsu 212003,China)  
When antianalyzing the nonlinear elastic model of geotechnical medium, people usually use DuncanChang model.In this model,there are eight parameters relative to elastic modulus and Poisson ratio.If someone antianalysizes these eight parameters at the same time, working capacity of calculation will be enormous,and the calculation is not necessary.So this paper analyzes the sensitivity of these parameters for antianalysis.
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