ABSTRACT

The pore constriction in the area between the particles is determined based on the density index of a soil Dr = (nmax −n)/(nmax −nmin) (where n is porosity and nmax and nmin are the maximum and minimum porosities) by considering a group of four particles touching each other. In this sense the pore constriction is defined as the largest 1-dimensional circle that can be constructed in the pore throat between the four

particles. In this way a pore constriction distribution is calculated dependent on the soil density.