数量化理論による大阪地盤の震動予測

Abstract

This study presents the predicted values of peak acceleration and velocity in Osaka by applyingthe Quantification theory to a number of calculated ground responses. The responses of ground atsurface were calculated by the multi-reflection theory considering the strain-dependent properties ofsoil. Model ground were constructed from the data base for the dynamic ground properties, whichincorporates the P-S wave velocity data performed to actual ground at about 100 sites in Osakaarea.Items considered in the analyses are the shear wave velocity of surficial layer, that of the baseground, the depth of the base ground, the lowest shear wave velocity in the layers and its associateddepth and the peak acceleration of incident wave. Most governing item was the depth of the layerof which the shear wave velocity is the lowest in the layers.