Prediction of Mechanical Properties of Soils on A Landslide Slope According to Electrical Resistivity Tomography and Cone Penetration Test

Summary Electrical resistivity tomography and cone penetration test were carried out on the slope of the M–7 Volga highway. The main goal of the research is to localize areas of increased landslide hazard. Electrical resistivity and the mechanical properties of soils depend on their moisture content, lithological composition and porosity. This made it possible to determine the correlation links between the electrical resistivity and the mechanical parameters of the soil, to predict the deformative and strength characteristics of the soil. Soils with abnormally low resistivity have low values of drag under the cone and friction of the side surface of the probe. They correspond to areas of potential landslide formation.