Application of thawed and peat soils for construction of road-bed for automobile roads

Abstract

The presence in the permafrost zones of loose rocks unsuitable for the erection of embankment set a number of problems for science before converting them into a group of suitable rocks. The practice of transport construction in the specific conditions of Siberia for the last two decades has accumulated experience and expanded the list of local materials used in the erection of embankments, namely frozen clay and peat soils. The strength, reliability and durability of such soil massifs depend on their water-heat regime and stress-strain state. In the developed physics-mechanical model, the principal moment that distinguishes it from the known ones is a sufficiently detailed account of the mutual influence of the temperature field, the distribution of moisture, ice content, as well as stresses and deformations. Theoretical premises were tested in experimental construction.