Parameter Sensitivity Analysis of Soil Dynamic Equivalent Linear Model Based on Orthogonal Tests
In response to the non-uniformity of soil materials and the uncertainty of dynamic parame-ters,based on the orthogonal experimental method and taking a dam as an example,an equivalent li-near model was used to analyze the sensitivity of equivalent linear model parameters to the vertical seis-mic peak acceleration and vertical permanent deformation of the dam body.The results indicate that the parameters k2,n,and λmax have significant impacts on the vertical seismic peak acceleration of the dam body,with k2 being the most sensitive,followed by n.The parameters k2,k1,and λmax have significant impacts on the vertical permanent deformation of the dam body,with k2 being the most sensitive,fo-llowed by k1.
orthogonal test methodseismic effectsequivalent linear modelsensitivity analysis