Building and designing on semi-rocky soils is problematic for many countries in the world. In particular, in Russia the problems of building on semi-rocky soils are not given clearly enough in national construction norms and standards. There is a necessity to analyse strength and deformation properties of semi-rocky soils, to work out the theory of interaction between a deep base and semi-rocky soils, and to develop a mathematical model of “deep base – semi-rocky ground” interaction. In that paper some results of static load soil test are presented. The possibility of the use of lower Permian soils as the end-bearing pile base within the bounds of a particular case was confirmed.