In this study, a data reduction method is developed to predict the dynamic shear modulus of each layer of multi-layered soil from the measured surface wave velocities. The method developed utilizes the vertical amplitude attenuation curve of surface w...
In this study, a data reduction method is developed to predict the dynamic shear modulus of each layer of multi-layered soil from the measured surface wave velocities. The method developed utilizes the vertical amplitude attenuation curve of surface wave in homogeneous soil. Numerical model studies show that the technique developed in this study is more accurate compared with the one-third technique widely used for the time being. The maximum error of data reduction from the technique developed in this study is found to be approximately one half of that of data reduction from the one-third technique.
It is also found in this study that assumed Poisson`s ratio may by used without
causing any significant error, however, unit weight of each layer should be exactly estimated in order not to cause any significant error.