Summary

The differential equation of the classic seepage problem changes upon creep. Examina-tion of the classic seepage problem omits some factors such as presence of constitutional water, compressibility of pure water, viscosity of soil grains etc., sometimes rather significant for the soil mass settlement. The most important among these factors can always be taken into consideration without excessive mathematical complications. A model taking soil grain vis-cosity and presence of constitutional water into consideration has been presented. Numerical analyses using the obtained formulae may be economically computerized. Development of the method to be presented was motivated by KtZDI, A.: "A Silo Foundation Story " (In Hungarian), M:elyepitestud. Szle. No. 3, Vol. XXII. (1972). This paper, referred to under [1], 'will be kept in mind throughout the discussion. Professor Arpad Kezdi was also consulted in some items of the numerical problem. Consolidation of the silo foundation can be considered as a problem of axial symmetry permitting one- or two-dimensional treatment. In this case, assuming identical consolidation coefficients in horizontal planes, the consoli-dation problem is described in a cylindrical coordinate system by