RHEOLOGICAL PROPERTIES OF SOILS OF DIFFERENT LAND USE IN THE SYKTYVKAR URBAN DISTRICT OF THE KOMI REPUBLIC

Abstract

The mechanical characteristics of soils of the same genesis and different land use of Syktyvkar are studied: agrod- ernovo-podzolic urban-stratified soil within the city, post-frost park soil, podzolic soil of suburban territory. The analysis of their relationship with the content of organic matter and granulometric composition is carried out. In agrodern-podzolic urban-stratified soil, the strength properties are largely due to the content of large granulometric fractions (> 0.25 mm), and in podzolic soil - the content of organic matter. Rows of soils were built according to the values of rheological parameters. The strength of structural bonds, estimated by the parameter of the initial modulus of elasticity, is greatest in podzolic soil, a wide range of linear viscoelastic state distinguishes the horizons of agroderno-podzolic urban-stratified soil. Both post-frost and podzolic soil have the same average values of the starting point of the viscous flow region.