Abstract
This paper presents a method to produce heterogeneous spatial distributions of hydraulic conductivity in embankments considering self-correlation length and distribution width based on probability statistics. The heterogeneous distribution of hydraulic conductivity has been applied to unsteady seepage analysis due to rainfall, and the effects of heterogeity on seepage behaviours have been investigated. Using the density width and the layer thickness of a real embankment, realistic heterogeneous fields of density has been obtained. Rainfall seepage analysis with use of the heterogeneous field of hydraulic conductivity provided by the relation between void raito and hydraulic conductivity has been carried out. It is found that the layer-by-layer heterogeneity of density creates local saturated region in the embankments.
