%0 Journal Article %T Evaluation of fill factor buildup for a log raft formed of rectangular rafting units %A Surov, G.. %A Shtaborov, D.. %K rafting unit rectangular, coefficient of raft density %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 4 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov