ABSTRACT
The article considers the possibility of determining soil viscosity parameters that are used for rheological soil models. These models allow to take into account the development of deformations over time and to describe the deformation curve with a high degree of accuracy. Nine shear tests were carried out on a torsional shear device at three normal stresses: 100, 200 and 400 kPa. The shear proceeded at a constant rate of 0.1138°/min and a constant vertical pressure. The soils for shear tests were selected from the construction site of the city of Moscow and are loams of a solid consistency. According to the results of laboratory experiments, the parameters of the strength and viscosity of the soil were determined. Using the new universal rheological model of Ter-Martirosyan A.Z. plots of shear stress versus time τ = f(t) were obtained. The authors in the article compare the experimental curves obtained from the results of the torsional shear test and the analytical curves obtained on the basis of the rheological model.
