"DIFFERENT RELEVANT PROPERTIES AND FUNCTIONS OF SOIL, AS WELL AS PROCESSES THAT TAKE PLACE IN SOIL, ARE MAINLY DETERMINED BY ITS STRUCTURE. PARTICLE SIZE DISTRIBUTION (PSD) AND THE GEOMETRICAL CONFIGURATION OF THE PORE SPACE PLAY A CRUCIAL ROLE IN THE STRUCTURAL DEFINITION OF SOILS. OUR FORMER RESEARCH PROJECTS HAVE BEEN CONCERNED WITH THE MODELLING AND MATHEMATICAL ANALYSIS OF THOSE TWO ATTRIBUTES OF SOILS.