Integrated nonlinear analysis of consolidation of weak clayey bases of large fills

Conclusions1. In the investigated loams loosely bound water occupies no more than 3% of the total volume of their pores.2. In fully saturated clayey soil, a "pore pressure peak" is absent after application of the load. On the graph of further dissipation of Δp with respect to the square root of time for △σ/△1j>1/2 there is a straight portion.3. An implicit relation has been proposed which satisfactorily describes the viscosity properties of clayey soils over the entire range of their possible compression rates in the stabilized and nonstabilized states.4. An analysis method was worked out for one-dimensional consolidation of a water-saturated clayey base, which takes into account in an integrated way its bedding, the loading rate, the geometric nonlinearity, and the variability of the soil compressibility, viscosity, and permeability. The analysis was performed numerically and by means of a computer program. Comparison of the analysis results by the program with established and well-known experimental laws as well as with test data for the "Ol’gino" site showed that the proposed analysis method reliably describes the process of one-dimensional consolidation of water-saturated clayey soils.