POSSIBILITIES OF ANALYTICAL ESTIMATION OF CLAY SLOPE STABILITY

Abstract

Possibilities to estimate clay slope stability ana-lytically are analyzed in this article. The slope stability depends on a number of conditions, also on intermediately related characteristics of the soil, slope shape and dimensions. Due to complexity of slope slip phenomenon the stability computations are performed by graphical - numerical methods. In our investigations we estimated slope stability by analytical formula, which we derived analyzing forces, acting infinite small slice of the slope and integrating moments of the forces equation. The received formula gives slope stability coefficients of similar to those of GEOSLOPE programme, what confirms the reliability of our formula and suitability of it to the application in scientific investigations, also in design works for comparison of a slope under design variants. The formula is especially useful for the estimation of stability of a slope, consisting of clay, which beside of usual soil characteristics has pecu-liar properties, depending on dynamic loads, consolidation, also saturation by water conditions.

http://dx.doi.org/10.5755/j01.mech.17.1.201