Consolidation technologies and protection of difficult soil foundations

Abstract

In the paper there are presented analysis regarding the consolidation of the difficult soils foundations using cushion of ballast and soil, following to be located on different constructions. Ballast or ground cushion distribute the pressures on a bigger surface than the foot foundation that is why the increasing of the pressure transmitted to the weak soil it will be smaller than the one beneath the foot foundation. These increase the foundations stability, because generally their characteristics of strength are superior to the strength characteristics of base soil. The substitution of difficult soil by ballast cushion , soil or other local materials consist in excavation of the weak layer, settlement and then compaction through rolling or puddling consecutively of the ballast or soil layers.