Keyword: «permafrost soils»

One of the main problems typical for Republic of Sakha (Yakutia) power system is a high percentage (more than 60%) power lines wear. More than 70% lines have been operating for more than 25 years, there is a massive decay of the supports and their destruction. Periodic freezing and thawing at the upper boundary of permafrost leads to support piles expulsion, as a result, to their fall and occurrence of a high accident rate in networks. The main goal of the work was to develop foundation solutions (FR) design from composite materials for single- and double-circuit, intermediate and anchor supports with wooden and concrete posts, excluding buckling of supports of 6, 10, 35 kV overhead lines.

This paper presents data on the largest accidents associated with oil and petroleum product spills in the Re-public of Sakha (Yakutia). A comparative assessment of the condition of soils taken from the territory of a technogenic object (oil depot) and a natural object (forest lands) contaminated with oil products is given. It is shown that peculiarities of distribution and degradation of oil hydrocarbons depend on many factors such as: the volume of spilled oil products, their composition, period of occurrence and duration of exposure, type of soil, presence of permafrost, climatic features, etc. A comprehensive study of the peculiarities of oil hydro-carbons behavior in permafrost soils makes it possible to carry out scientifically based monitoring of the state of territories with high anthropogenic loads.