TY JOUR TI Calculation of frost heaving and requirements for the frost road construction for forest roads in the republic of Komi KW roadbed KW road wear KW soil KW road construction KW frost KW road JO Actual directions of scientific researches of the XXI century: theory and practice AU Burmistrova, O.N. AU Burgonutdinov, A.M. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov