Prediction of Soil Swelling Parameters

The swelling parameters can be directly measured in the laboratory or in situ and indirectly estimated from empirical correlations. The swelling is tested under laboratory conditions in different devices (usually only linear swelling is tested). Generally, swell heave measurements have long duration and require sufficiently equipped laboratory. This article presents the results of nonlinear regressions made on the large site investigations by GeoTec-GS, a.s. and experimental data from CTU in Prague for the swelling characteristics prediction. The analyses of the experimental results show formulas for swelling pressure, time of swelling and swelling strain based on the relationship of the results of the basic soil tests (plasticity index, consistency index, and colloidal activity) for swelling soils and soil stabilization by lime.