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The aim of the article is studying relationships of soil pressure of forestry machines, determined within different methods. Research methods include computing experiment and calculated data processing. The article analyzes three different methods for calculating the soil pressure, including analytical method for calculating average contact pressure, method for calculating the pressure on a rigid surface, and nominal ground pressure method. Basing on the computing experiment results, the study establishes linear r...

The purpose of this article is development of systemized recommendations for assessing impact of logging machines on forest soil, basing on which one can consider eligibility of a particular machine for given soil conditions. Research methods include mathematical analysis, numerical methods for solving equations, computing experiment and methods for calculated data processing. The study uses soil compaction and rut depth, consisting of the compaction and soil shear, as the main indicators of the impact. The main s...