Титаренко В. Prognostication of Mutability in Descriptions of Clayeygrounds at Estimation of Stability of Landslide-dangerous Slopes

The work is devoted to determination of reliable data for strength of grounds and to elaboration of the prognostication methods of their mutability while estimating the stability of landslide-dangerous slopes. For that purpose there was for the first time substantiated and practically examined the method of conducting investigation on a single-plane shift, while specimens are first compacted and saturated with water at the forecast vertical pressures by which the ground massif will be influenced as a result of developing water supply to the slope, and the critical value of shift resistance is determined at the very beginning of the ground break-down phase. For the water-saturated clayeygrounds there were elaborated methods for carrying out and processing the results of a single-plane shift on the basis of a new scheme of interdependence of physical and mechanical characteristics that enables to predict their mutability as a result of water supply to a slope. They were used for stability estimation ina number of landslide-dangerous slopes being placed in the Poltava region. The mathematical modeling of the single-plane ground shift process by means of solution the elastic-ductile task of nonlinear mechanics of grounds made it possible to define new peculiarities of this examination.