Assessment of technological properties of thawing soils under load from a forest machine and a skidding system on slopes

In the Russian Federation, a significant part of the territory of the forest fund is located on permafrost. Such territories include: the Republic of Sakha (Yakutia), the Komi Republic, the Magadan Region, the Yamalo-Nenets Autonomous Okrug, the Chukotka Autonomous Okrug, the Murmansk Region, significant territories of Siberia and the Far East. Many of the listed regions have large reserves of ripe and over-mature operational forests, and a significant part of these reserves are located in hard-to-reach places, not only in relation to the development of the road network, but also in terms of the terrain of the local area. Currently, the overwhelming volume of wood harvesting in Russia is produced with the help of modern machine complexes, mainly on the basis of wheeled forest machines. The article presents an assessment of the technological properties of thawing soils under load from the propulsion of a forest machine, which allows a reasonable assessment of one of the aggregate technological properties of various sections of thawing soil arrays - their uniaxial compression strength - under load from the action of a forest machine or a skidding system based on it on slopes near the boundary of the permafrost zone-lots. Effective accounting of the revealed patterns is possible on the basis of the collection and processing of geological data, primarily hydrogeological studies of the physical and mechanical properties and conditions of soils composing the marginal part of the slope surface. 

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