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Authors present information about the conditions of ice formation in the natural and technogenic clumpy rock masses in the climatic conditions of the mountain regions of Subarctic in the Northen Transbaikalia. This research substantiates actuality of the study of ice formation in such clumps for the purpose of developing methods and technical means for their engineering and geological study, determination of physical and mechanical properties, development of approaches to the solution of a wide range of geo-ecological and geotechnical problems and, in general, the problem of ensuring the stability of constructions of various purposes. One can find basic differences of their properties, which determine the radiation balance of the surface of clumpy rock masses depending on the situation on the terrain and the orientation to the cardinal. The authors also analyze of the impact of seasonal fluctuations in temperature, humidity and precipitation on the particular ice formations in clumpy rock massifs as a result of convective heat transfer in interclumpy spaces. The results of studies show relations of the formation and accumulation of ice from the structure of clumpy massifs. Authors obtained types and main genetic characteristics of ice in clumpy rock masses. Moreover, authors determined the conditions for forming the structure of the crystal lattice, water crystallization, crystal growth, chemical composition, physical and mechanical properties and other characteristics of ice, in the surface and underground rock clumpy massifs. One can see their dependence on dynamics of the changing in the winter low daily and seasonal temperature of crystallization and the rapid growth of ice crystals. Authors present conclusions of the scientific and practical importance in solving practical problems of economic development of the territories with local and areal extent of clumpy rock massifs.

Investigation of ice formation in the lump rock massifs of cryolithozone of the Northern Transbaikalia