Improvement of soft soil characteristics through application of dry concrete mix pillars

摘要

The territory of Belarus is characterized by nonhomogeneous ground conditions. In some cases a soft soil layers can reach tens of meters in depth. Application of piles and other foundations is rather difficult and expensive in such complicated conditions. Alternatively dry concrete mix pillars can be applied for improvement of upper soft water-saturated soils. Application and field investigation results are described in the paper. Improvement of physical and mechanical characteristics was achieved for all kinds of soil. According to comparative calculations the cost of foundations on improved base can be 32% lower than the cost of conventional foundations.