Substantiation of the engineering-geocryological monitoring system for operational embankments of linear transport structures in the Yamalo-Nenets Autonomous Okrug

   The article presents the results of the research on the development and implementation of the system of engineering and geocryological monitoring of the operating embankments of linear transport structures in the conditions of climate change on the example of a section of the earth bed in the Yamalo-Nenets Autonomous Okrug (YNAO). The stages of substantiation of the system of engineering-geocryological monitoring of the used embankments of linear transport structures in the considered conditions are proposed.
   On the basis of the results of visual-instrumental and geotechnical investigations, a scheme of deformation characteristics of the section of the operated embankment typical for the considered conditions was formed, and a transverse geocryological profile was constructed. A universal system of zoning of the exploited embankment, the right of way and the adjacent territory, taking into account the influence of cryogenic processes and factors, was developed and applied to process the obtained survey results.
   On the basis of the conducted researches the peculiarities of the geocryological condition of the exploited embankment site typical for the YNAO conditions were formulated, which are necessary for the justification of the engineering-geocryological monitoring system. The scheme of installation of the engineering-geocryological monitoring system was substantiated, a complex of measuring devices for objective control of thermal and deformed state of the geotechnical system embankment-base on the site of the operated embankment typical for YNAO conditions was developed and manufactured. The installation of the engineering geotechnical monitoring system was carried out, as well as the zero and first observation cycles, which confirmed the efficiency of the system and the absence of the need to adjust its parameters.

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