TY CONF TI MODERN APPROACHES TO DETERMINING THE MECHANICAL PROPERTIES OF THE SOIL FOUNDATIONS OF FOREST ROADS KW forest roads KW roadbed KW soil foundations KW soil shear resistance JO MODERN FORESTRY COMPLEX OF THE COUNTRY: INNOVATIVE DEVELOPMENTS AND PROGRESSIVE TECHNOLOGIES AU Zubova, O.V. AU Zubova, M.S. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov