Review article

The paper presents the results of analysis of existing methods for solving the problem of one-dimensional saturated clayey soil filtration consolidation with consideration of the threshold pressure gradient. Based on the analytical solution for one-dimensional consolidation equation, a method for determining the layer settlement of saturated clay soil is developed. The method takes into account the changing of compression layer zone due to reducing the pressure gradient in depth over time. The influence of the threshold pressure gradient on the final layer settlement and the rate of its development in time is estimated. There has been made a comparison analysis of the results obtained at the solution of the problem using the proposed method with results obtained using the current analytical and numerical methods.