Innovation Day: New Approaches and Techniques for Permafrost Field Studiesстатья

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1. Полный текст 2015_mgu_vestnik_angl_versiya.pdf 819,6 КБ 24 октября 2016 [vladislav69]

[1] Innovation day: New approaches and techniques for permafrost field studies / V. S. Isaev, A. I. Tyurin, D. O. Sergeev et al. // Moscow University Geology Bulletin. — 2016. — Vol. 71, no. 2. — P. 1–4. Permafrost is found in 65% of the territory of Rus sia (Balobaev et al., 1973). The thickness of the cry olithozone varies from hundreds of meters in the polar regions of Russia to thousands of meters in the highest mountain regions in Eurasia. The Subdepartment of Geocryology of the Depart ment of Geology at Moscow State University (MSU) has recently been working on a number of applied research projects that cover the following topics: the reliability management of geotechnical systems in the permafrost; analysis of the interaction of organic pol lutants with seasonally freezing soils and permafrost; the creation of protective barriers around underground radioactive and toxic waste disposal facilities using natural and artificial cold (Fundamentals of Geocry ology, 1999). Now that the Northern Economic Development Program has been adopted in Russia, the study of the polar regions is attracting increasing interest, espe cially with regard for the engineering and geological assessment for construction projects that are under way or planned (e.g., the Yamal megaproject, the Yamal LNG project, the construction of the Northern Latitudinal Railway, reconstruction and reequipment of the northern airfields, etc.). New requirements for geotechnical surveys (especially, shorter terms for the surveying of vast areas) and the necessity to provide the realtime insitu monitoring of frozen soils necessitate the use of innovative highefficiency techniques in addition to the traditional ones. All of these problems require an integrated approach that combines geotechnical and geocryolog ical aspects. The fundamentals of such an approach have traditionally been taught as part of the course Permafrost Investigations in the Field for the third year geological engineering students of the Department of Geology at Moscow State University (Field … 1986). The field course includes the study of the cryogenic struc ture of the permafrost and ice (Associate Professor E.M. Chuvilin); frost heave processes (I.A. Komarov and V.S. Isaev); and geophysical methods for studying seasonally frozen soils (A.V. Koshurnikov). The course includes geocryological monitoring methods: snowcover monitoring, snowsurvey tech niques (S.N. Buldovich), and evaluation of the depth of seasonal freezing by using different techniques (V.E. Tumskoi). The 2015 Science and Innovation Day significantly improved the fieldbased course in geocryology that reflect new requirements for permafrost investiga tions. The purpose of the event was to acquaint stu dents with the stateoftheart aerial photo and video surveying techniques and new tricks for traditional static penetration testing in relation to frozen soils. The Science and Innovation Day was attended by the representatives of the leading geosciences companies and research centers that specialize in aerial photogra phy to study the properties of frozen soils, scientists of the Department of Geology, and all those who were interested in the latest achievements in permafrost investigations. [ DOI ]

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