Cold Weather Construction Of Rights Of Way For Roads PDF Download

As a rule, during the winter, the fill should be built up from loose soils. The use of cohesive soils is basically possible, but always involves considerable difficulties. In those cases when supersaturated loose soils are used for constructing fill, the established standards for density can not be achieved. As a result of the inadequate compaction of soils and their excessive wetting, such embankments become unstable when exposed to freeze-thaw cycles. Their stability is manifested in the fact that the frost upheavals of the roadbed surface exceeds the tolerable limits causing stresses and disruptions to appear in the road coverings built on the roadbed. (Author).