Based on the measured data of shear wave velocity and P wave velocity in Eastern Henan Plain,regression equations of wave velocity and depth of different soil layers were established by using the linear model,the power function model and the quadratic equation model.The goodness of fitting was taken as an evaluation index to compare and select the statistic models and parameters of different kinds of soils.It is pointed out that The regression equations are not suitable for the site with weak soil interlayer.With the increase of depth of superficial soil layers,the total Poisson' s ratio increases first,then tends to be stable and decreases later.The effective Poisson' s ratio can be obtained by the test of shear wave velocity,P wave velocity and porosity of saturated soil layers.
shear wave velocityP wave velocityPoisson' s ratiosoil dynamic parameters