КРИОГЕННЫЕ ПРОЦЕССЫ В ЕСТЕСТВЕННЫХ И ТЕХНОГЕННЫХ УСЛОВИЯХ НА КРУЗЕНШТЕРНСКОМ МЕСТОРОЖДЕНИИ

The aim of the work was the establishment of the modern cryogenic processes, adverse or dangerous impact on construction sites during the development. The main tasks were to identify activity and danger of cryogenic processes during the development. The area belongs to the zone of continuous distribution of permafrost. Their feature is the wide development of re-wire and formation of ice in the upper layers of the permafrost. For the study of geocryological conditions and cryogenic processes applied remote sensing and in-situ (field) methods of research. On the surface has developed a broad range of cryogenic processes such as thermokarst, cryogenic landslides, solifluction, seasonal and perennial heave, thermoerosion. On the Bank of the Kara Sea is developing thermoabrasion, thermodenudasion. The field phase of the work carried out in natural (background) natural conditions. At the drilling sites completed 15-20 years ago. They also examined. The results revealed cryogenic processes with different activity development. Technogenic impact on geological environment was carried out without consideration of geocryological and geo-ecological factors. Conditions were created for the occurrence of unfavorable and dangerous cryogenic processes. They develop with an activity of up to tens of times exceeds similar in natural conditions. Climate change took place in the period of development of territory. They changed the geocryological conditions. The Kruzenshtern field there was an increase of temperature of the permafrost. During the development of these soils are less resistant to technological impact and more susceptible to adverse and dangerous cryogenic processes as thermokarst and cryogenic heave.