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Logging in the regions of the Far North is characterized by extremely difficult climatic conditions. Operation of skidding systems in relation to frozen soils necessitates taking it into account as a multicomponent complex environment. The need to minimize the anthropogenic load on the environment raises the problem of optimizing the number of skidding system passes through the same runway to the category of the most relevant ones. The data presented in the Лесоинженерное дело  Лесотехнический журнал 1/2019 117 article allows quantifying the effect of the use of various systems in specific climatic and technological conditions. The methodological provisions developed in the article formed the basis of test calculations to determine the adequacy of the mathematical model to the technological conditions of logging systems operation with their cyclical effect on frozen soil. The results of studies and estimates of the influence of skidding system parameters, temperature, humidity, ice content, physical and mechanical properties and the state of frozen soil on its deformation can be taken as initial requirements for modeling and optimizing the process of cyclic soil compaction.

FEATURES OF TAKING INTO ACCOUNT THE CONDITION OF FROZEN SOILS SOLID MASS IN CYCLIC INTERACTION WITH THE SKIDDING SYSTEM