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The assessment of geocryological threats to the developed territories of Eastern Chukotka
Abstract.This article presents and tests the method of assessment of the various geocriological threats to the developed territories of Eastern Chukotka. The research is based on the complex of field geodesic, geophysical, and geocryological measurements conducted in the core settlement of the indicated region (Lorino), as well as archival data of the engineering surveys of previous years. Based on the acquired materials using the calculation methods, the author was able to determine the current geocryological situation in subsoil of the settlement along with the development level of the negative cryogenic processes and phenomena. In the course of this war was performed the assessment of threats associated with the changes in cryogenic situation and development of the negative cryogenic processes. As a result of this research, the author allocated the sections of settlement within which is traced the low level of natural sustainability of lithocryogenic ground in terms of technogenic disturbance, as well as high level of threat pertaining to decline in the carrying capacity of refrigerated piles and increase of tangential forces of frost heaving of soil.
Keywords: Eastern Chukotka, coastal erosion, thermoerosion, frost heaving, bearing capacity of piles, natural hazards, active layer, permafrost, Lorino, geocryology
Article was received:20-12-2017
This article written in Russian. You can find full text of article in Russian here .